@article{Loose2007, author = {Loose, Harald}, title = {Autonomous mobile robots for outdoor tasks}, series = {Mechanika}, volume = {68}, journal = {Mechanika}, number = {6}, publisher = {Kaunas University of Technology}, address = {Kaunas}, doi = {10.5755/j02.mech.36230}, pages = {70 -- 73}, year = {2007}, abstract = {This paper presents a low-cost hardware platform for outdoor robots, being suitable for education, industrial prototyping and private use. The choice of components is discussed, including platform, sensors and controller as well as GPS and image processing hardware. Furthermore, a software approach is proposed, allowing students and researchers to easily implement own algorithms for localization, navigation and the tasks to fulfill. Several robots can be integrated in a framework which connects various different hardware platforms, called the BOSPORUS network. Together with other components, they form an intelligent network for gathering sensor and image data, sensor data fusion, navigation and control of mobile platforms. The architecture of a reference platform on the campus of the Brandenburg University of Applied Sciences is presented and evaluated.}, language = {en} } @article{HirschSchmidtOseevetal.2016, author = {Hirsch, S{\"o}ren and Schmidt, Marc-Peter and Oseev, Aleksandr and Engel, Christian and Brose, Andreas and Schmidt, Bertram}, title = {Flexible free-standing SU-8 microfluidic impedancespectroscopy sensor for 3-D molded interconnectdevices application}, series = {Journal of Sensors and Sensor Systems}, volume = {5}, journal = {Journal of Sensors and Sensor Systems}, number = {1}, doi = {10.5194/jsss-5-55-2016}, pages = {55 -- 61}, year = {2016}, language = {en} } @book{BurgerMenzel2016, author = {Burger-Menzel, Bettina}, title = {Environmental Politics and the Human Being: A New Interdisciplinary Perspective on Motivational Processes and Sustainable Change Behaviour}, publisher = {K{\"a}te Hamburger Kolleg}, address = {Duisburg}, issn = {2198-041}, doi = {10.14282/2198-0411-GCRP-13}, publisher = {Technische Hochschule Brandenburg}, pages = {60}, year = {2016}, language = {en} } @article{PtashnikMikhailovYastrebovetal.2017, author = {Ptashnik, Sergey V. and Mikhailov, Anatoliy K. and Yastrebov, Alexander V. and Petrov, Peter K. and Liu, Wei and McN Alford, Neil and Hirsch, Soeren and Kozyrev, Andrey B.}, title = {Ferroelectric thin film acoustic devices with electrical multiband switching ability}, series = {Scientific Reports}, volume = {7}, journal = {Scientific Reports}, number = {15289}, doi = {10.1038/s41598-017-14895-8}, year = {2017}, language = {en} } @article{OseevLucklumZubtsovetal.2017, author = {Oseev, Aleksandr and Lucklum, Ralf and Zubtsov, Mikhail and Schmidt, Marc-Peter and Mukhin, Nikolay V. and Hirsch, Soeren}, title = {SAW-Based Phononic Crystal Microfluidic Sensor—Microscale Realization of Velocimetry Approaches for Integrated Analytical Platform Applications}, series = {Sensors}, volume = {17}, journal = {Sensors}, number = {10}, doi = {10.3390/s17102187}, pages = {2187}, year = {2017}, language = {en} } @inproceedings{Meister2018, author = {Meister, Vera G.}, title = {Competency Acquisition in Applied Knowledge Engineering An Approach based on Learning from Errors}, series = {Proceedings of the 2018 International Conference on Education Science and Social Development (ESSD 2018), Shanghai, China, in July 21-22, 2018}, booktitle = {Proceedings of the 2018 International Conference on Education Science and Social Development (ESSD 2018), Shanghai, China, in July 21-22, 2018}, publisher = {Atlantis Press}, isbn = {978-94-6252-556-6}, doi = {10.2991/essd-18.2018.53}, year = {2018}, language = {en} } @article{MeisterHuRizun2018, author = {Meister, Vera G. and Hu, Wenxin and Rizun, Mariia}, title = {Knowledge Engineering Processes and Tools in Enterprise Environments - A Systematization Attempt}, series = {International Journal of Knowledge Engineering}, volume = {4}, journal = {International Journal of Knowledge Engineering}, number = {1}, issn = {2382-6185}, doi = {10.18178/ijke.2018.4.1.095}, pages = {29}, year = {2018}, language = {en} } @inproceedings{CreutzburgMcCallumKimetal.2018, author = {Creutzburg, Reiner and McCallum, Simon and Kim, Stefan and van R{\"u}schen, Raoul}, title = {Volumetric Terrain Rendering with WebGL}, series = {Electronic Imaging: Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications, 28. Januar bis 1. Februar 2018, Burlingame, Kalifornien, USA}, booktitle = {Electronic Imaging: Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications, 28. Januar bis 1. Februar 2018, Burlingame, Kalifornien, USA}, publisher = {Society for Imaging Science and Technology}, address = {Kilworth Lane / Springfield, Virginia, USA}, issn = {2470-1173}, doi = {10.2352/issn.2470-1173.2018.06.mobmu-136}, pages = {136-1 -- 136-14}, year = {2018}, language = {en} } @article{BeckSchraderTetzlaffetal.2018, author = {Beck, Eberhard and Schrader, Thomas and Tetzlaff, Laura and Schr{\"o}der, Cornelia}, title = {Prospektive Risikoanalyse: Die {\"A}hnlichkeit von Medikamentennamen in der Drugbank-Datenbank}, series = {GMS Medizinische Informatik, Biometrie und Epidemiologie}, volume = {14}, journal = {GMS Medizinische Informatik, Biometrie und Epidemiologie}, number = {2}, doi = {10.3205/mibe000187}, pages = {1/7 -- 7/7}, year = {2018}, language = {de} } @article{BeckTetzlaffSchroederetal.2018, author = {Beck, Eberhard and Tetzlaff, Laura and Schr{\"o}der, Cornelia and Schrader, Thomas}, title = {Die Datenqualit{\"a}t des CIRSmedical - geeignet f{\"u}r eine systematische Analyse?}, series = {GMS Medizinische Informatik, Biometrie und Epidemiologie}, volume = {14}, journal = {GMS Medizinische Informatik, Biometrie und Epidemiologie}, number = {2}, doi = {10.3205/mibe000188}, pages = {Doc10-1 -- Doc10-9}, year = {2018}, language = {de} } @article{BeckRoedigerLiefoldetal.2018, author = {Beck, Eberhard and R{\"o}diger, Stefan and Liefold, Marius and Ruhe, Madeleine and Reinwald, Mark and Deckert, P. Markus}, title = {Quantification of DNA double-strand breaks in peripheral blood mononuclear cells from healthy donors exposed to bendamustine by an automated γH2AX assay—an exploratory study}, series = {Journal of Laboratory and Precision Medicine}, volume = {3}, journal = {Journal of Laboratory and Precision Medicine}, number = {5}, doi = {10.21037/jlpm.2018.04.10}, pages = {47-12}, year = {2018}, language = {en} } @article{AgafonovaKozyrevMukhinetal.2018, author = {Agafonova, D. S. and Kozyrev, A. B. and Mukhin, N. V. and Red'ka, D. N. and Elanskaya, G. K. and Rudenko, M. V. and Oseev, A. and Hirsch, S{\"o}ren}, title = {Impurity Phases in Polycrystalline Films of Ferroelectric Oxides of the Perovskite-Type on the Basis of Bi2SrTa2O9 and Pb(Zr,Ti)O3}, series = {Glass Physics and Chemistry}, volume = {44}, journal = {Glass Physics and Chemistry}, number = {1}, doi = {10.1134/S1087659618010029}, pages = {15 -- 20}, year = {2018}, language = {en} } @article{KurachkinaKonshinaOseevetal.2018, author = {Kurachkina, Margarita and Konshina, Elena and Oseev, Aleksandr and Hirsch, S{\"o}ren}, title = {Hybrid structures based on gold nanoparticles and semiconductor quantum dots for biosensor applications}, series = {Nanotechnology Science and Applications}, volume = {11}, journal = {Nanotechnology Science and Applications}, doi = {10.2147/nsa.s155045}, pages = {15 -- 21}, year = {2018}, language = {en} } @article{MukhinRedkaTarasovetal.2018, author = {Mukhin, N.V. and Redka, D. N. and Tarasov, S. A. and Oseev, A. Yu. and Hirsch, S{\"o}ren}, title = {Two-Dimensional Periodic Composite Structure for Acoustic Sensor of Volumetric Properties of Liquids}, series = {Journal of the Russian Universities. Radioelectronics}, journal = {Journal of the Russian Universities. Radioelectronics}, number = {1}, doi = {10.32603/1993-8985-2018-21-1-56-63}, pages = {56 -- 63}, year = {2018}, language = {ru} } @article{WidjajaLoeweCosta2018, author = {Widjaja, Agnes S. N. and L{\"o}we, Katharina and Costa, Felipe Salerno}, title = {Design and simulation of a concentrated solar thermal system with an integrated concrete storage for continuous heat supply}, series = {Energy Procedia}, volume = {155}, journal = {Energy Procedia}, doi = {10.1016/j.egypro.2018.11.062}, pages = {121 -- 135}, year = {2018}, language = {en} } @article{LiefoldWagnerPokrakaetal.2018, author = {Liefold, Marius and Wagner, Dennis and Pokraka, Alexander and Schrader, Thomas}, title = {Low-Cost Medical Infrastructure: Triage as intelligent decision support}, series = {Electronic Imaging, Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications}, journal = {Electronic Imaging, Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications}, publisher = {Society for Imaging Science and Technology (IS\&T)}, doi = {10.2352/ISSN.2470-1173.2018.06.MOBMU-116}, pages = {116-1 -- 116-4}, year = {2018}, language = {en} } @inproceedings{MoellmannRegehlyVollmer2019, author = {M{\"o}llmann, Klaus-Peter and Regehly, Martin and Vollmer, Michael}, title = {Studying the transition from light emitting diodes to semiconductor lasers in applied physics laboratories}, series = {Fifteenth Conference on Education and Training in Optics and Photonics: ETOP 2019 21-24 May 2019}, booktitle = {Fifteenth Conference on Education and Training in Optics and Photonics: ETOP 2019 21-24 May 2019}, address = {Quebec City, Quebec, Canada}, doi = {10.1117/12.2523387}, pages = {1114312-1 -- 1114312-9}, year = {2019}, language = {en} } @inproceedings{VollmerShaw2019, author = {Vollmer, Michael and Shaw, Joseph A.}, title = {Near infrared photography of atmospheric optical phenomena}, series = {Fifteenth Conference on Education and Training in Optics and Photonics: ETOP 2019}, booktitle = {Fifteenth Conference on Education and Training in Optics and Photonics: ETOP 2019}, address = {Quebec City, Quebec, Canada}, doi = {10.1117/12.2523165}, pages = {111431P-1 -- 111431P-6}, year = {2019}, language = {en} } @inproceedings{VollmerShaw2019, author = {Vollmer, Michael and Shaw, Joseph A.}, title = {Extended visual range: an observation during a total solar eclipse}, series = {Fifteenth Conference on Education and Training in Optics and Photonics: ETOP 2019}, booktitle = {Fifteenth Conference on Education and Training in Optics and Photonics: ETOP 2019}, address = {Quebec City, Quebec, Canada}, doi = {10.1117/12.2523167}, pages = {111431Q-1 -- 111431Q-6}, year = {2019}, language = {en} } @unpublished{Frosch2019, author = {Frosch, Katharina}, title = {Open Design of HRM Instruments: new perspectives on people management in SMEs}, pages = {1 -- 35}, year = {2019}, abstract = {When it comes to human resource management (HRM), small and medium-sized enterprises (SMEs) primarily rely on informal approaches. Thereby, HR practitioners often listen to their guts feeling instead of using more systematic HR practices that are, as research evidence shows, more effective for attracting, motivating and retaining talented staff. This paper elaborates on the question how SMEs may profit from the design and implementation of evidence-based, systematic HRM instruments. The analysis focuses on the antecedents of the so called science-practitioner gap in HRM and why it is even more pronounced in SMEs as compared to larger companies. As a conclusion, we find that SMEs need to design HRM instruments that are systematic and evidence-based in their approach, but can be used by HR practitioners on an intuitive basis without ex ante training or cumbersome formal procedures. However, designing HRM instruments based on a so-called "walk-up-and-use" approach means beating new paths. Given the scarce resources for people management in SMEs, such innovative HRM instruments cannot be developed by a single SME alone. Therefore, the paradigm of open cooperation as it has been successfully applied in open source software (OSS) development is evaluated , in particular whether it can be transferred on the design of HRM instruments that take into account the specific needs of SMEs. First of all, we conceptualize a general framework how HR practitioners from SMEs and HR experts from business and academia can jointly develop Open HRM instruments. Then we discuss the social side of Open HRM, in particular why someone should contribute to Open HRM without receiving immediate profits, how to ensure the quality of openly developed HRM instruments and other gov-ernance issues. As a conclusion, we find that-despite a number of technical and social challenges that have to be overcome-Open HRM has a great potential in order to open up evidence-based HRM for SMEs.}, language = {de} } @article{RedkaMukhinGrishkanichetal.2019, author = {Redka, D. and Mukhin, N. and Grishkanich, A. and Terukov, E. and Hirsch, S{\"o}ren and Ignateva, L.}, title = {NdYAG surface modification of ZnO for solar cells}, series = {Journal of Physics: Conference Series}, volume = {1410}, journal = {Journal of Physics: Conference Series}, publisher = {IOP Science}, doi = {10.1088/1742-6596/1410/1/012106}, pages = {012106}, year = {2019}, language = {en} } @article{Vollmer2020, author = {Vollmer, Michael}, title = {Below the horizon-the physics of extreme visual ranges}, series = {Applied Optics}, volume = {59}, journal = {Applied Optics}, number = {21}, publisher = {Optica Publishing Group}, doi = {10.1364/AO.390654}, pages = {F11 -- F19}, year = {2020}, language = {en} } @article{TumarkinTyurninaTyurninaetal.2020, author = {Tumarkin, Andrey and Tyurnina, Natalya and Tyurnina, Zoya and Mukhin, Nikolay and Sinelshchikova, Olga and Gagarin, Alexander and Sviridov, Sergey and Drozdovsky, Andrey and Sapego, Eugeny and Mylnikov, Ivan}, title = {Barium-Strontium Titanate/Porous Glass Structures for Microwave Applications}, series = {Materials}, volume = {13}, journal = {Materials}, number = {24}, publisher = {MDPI}, doi = {10.3390/ma13245639}, year = {2020}, language = {en} } @article{RudenkoGaponenkoLitvinovetal.2020, author = {Rudenko, Maryia and Gaponenko, Nikolai and Litvinov, Vladimir and Ermachikhin, Alexander and Chubenko, Eugene and Borisenko, Victor and Mukhin, Nikolay and Radyush, Yuriy and Tumarkin, Andrey and Gagarin, Alexander}, title = {Structural Dependent Eu3+ Luminescence, Photoelectric and Hysteresis Effects in Porous Strontium Titanate}, series = {Materials}, volume = {13}, journal = {Materials}, number = {24}, publisher = {MDPI}, doi = {10.3390/ma13245767}, year = {2020}, language = {en} } @unpublished{VogelWoelferRamirezDiazetal.2020, author = {Vogel, Sven K. and W{\"o}lfer, Christian and Ramirez-Diaz, Diego A. and Flassig, Robert J. and Sundmacher, Kai and Schwille, Petra}, title = {Symmetry breaking and emergence of directional flows in minimal actomyosin cortices}, doi = {10.20944/preprints202004.0008.v1}, pages = {10}, year = {2020}, language = {en} } @article{VollmerMoellmann2020, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Unsichtbares sichtbar gemacht: Infrarotkameras f{\"u}r Smartphones}, series = {Physik in unserer Zeit}, volume = {51}, journal = {Physik in unserer Zeit}, number = {1}, publisher = {Wiley-VCH}, doi = {https://doi.org/10.1002/piuz.201901551}, pages = {29 -- 35}, year = {2020}, language = {de} } @article{VollmerMoellmann2020, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Wenn Licht die Biege macht}, series = {Physik in unserer Zeit}, volume = {51}, journal = {Physik in unserer Zeit}, number = {1}, publisher = {Wiley-VCH}, doi = {https://doi.org/10.1002/piuz.202001569}, pages = {46 -- 47}, year = {2020}, language = {de} } @article{FachetWitteFlassigetal.2020, author = {Fachet, Melanie and Witte, Carina and Flassig, Robert J. and Rihko-Struckmann, Liisa K. and McKie-Krisberg, Zaid and Polle, J{\"u}rgen E. W. and Sundmacher, Kai}, title = {Reconstruction and analysis of a carbon-core metabolic network for Dunaliella salina}, series = {BMC Bioinformatics}, volume = {21}, journal = {BMC Bioinformatics}, number = {1}, publisher = {BioMed Central}, doi = {10.1186/s12859-019-3325-0}, year = {2020}, language = {en} } @article{GieslerPeschWeirauchetal.2020, author = {Giesler, Jasper and Pesch, Georg R. and Weirauch, Laura and Schmidt, Marc-Peter and Th{\"o}ming, Jorg and Baune, Michae}, title = {Polarizability-Dependent Sorting of Microparticles Using Continuous-Flow Dielectrophoretic Chromatography with a Frequency Modulation Method}, series = {Micromachines}, volume = {11}, journal = {Micromachines}, number = {1}, publisher = {MDPI}, doi = {10.3390/mi11010038}, pages = {38}, year = {2020}, language = {en} } @article{SchwarzSchwarzCreutzburg2020, author = {Schwarz, Franziska and Schwarz, Klaus and Creutzburg, Reiner}, title = {New Methodology and Checklist of Wi-Fi Connected and App-Controlled IoT-Based Consumer Market Smart Home Devices}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2020.3.MOBMU-276}, pages = {276-1 -- 276-15}, year = {2020}, language = {en} } @article{SchwarzSchwarzCreutzburg2020, author = {Schwarz, Franziska and Schwarz, Klaus and Creutzburg, Reiner}, title = {Security and Privacy Investigation of Wi-Fi Connected and App-Controlled IoT-Based Consumer Market Smart Light Bulbs}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2020.3.MOBMU-275}, pages = {275-1 -- 275-11}, year = {2020}, language = {en} } @article{SchwarzSchwarzCreutzburg2020, author = {Schwarz, Klaus and Schwarz, Franziska and Creutzburg, Reiner}, title = {Conception and implementation of professional laboratory exercises in the field of open source intelligence (OSINT)}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2020.3.MOBMU-278}, pages = {278-1 -- 278-10}, year = {2020}, language = {en} } @article{SchwarzSchwarzCreutzburg2020, author = {Schwarz, Franziska and Schwarz, Klaus and Creutzburg, Reiner}, title = {Conception of a Secure Remote Maintenance Procedure Using Dedicated Hardware}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2020.3.MOBMU-336}, pages = {336-1 -- 336-7}, year = {2020}, language = {en} } @article{KutiaMukhinPetrovaetal.2020, author = {Kutia, Mykhailo and Mukhin, Nikolay and Petrova, Hanna and Oseev, Aleksandr and Bakhchova, Liubov and Schmidt, Marc-Peter and Aman, Alexander and Palis, Stefan and Tarasov, Sergey and Hirsch, Soeren}, title = {Sensor for the evaluation of dielectric properties of sulfur-containing heteroatomic hydrocarbon compounds in petroleum based liquids at a microfluidic scale}, series = {AIP Advances}, volume = {10}, journal = {AIP Advances}, number = {2}, publisher = {American Institute of Physics}, doi = {10.1063/1.5141482}, pages = {025006}, year = {2020}, language = {en} } @article{RevinaBuzaMeister2020, author = {Revina, Aleksandra and Buza, Krisztian and Meister, Vera G.}, title = {IT Ticket Classification: The Simpler, the Better}, series = {IEEE Access}, volume = {8}, journal = {IEEE Access}, publisher = {Institute of Electrical and Electronics Engineers (IEEE)}, issn = {2169-3536}, doi = {10.1109/ACCESS.2020.3032840}, pages = {193380 -- 193395}, year = {2020}, language = {en} } @article{HascheBenningKaraschewskietal.2020, author = {Hasche, Eberhard and Benning, Dominik and Karaschewski, Oliver and Carstens, Florian and Creutzburg, Reiner}, title = {Creating high-resolution 360-degree single-line 25K video content for modern conference rooms using film compositing techniques}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2020.3.MOBMU-206}, pages = {206-1 -- 206-14}, year = {2020}, language = {en} } @article{HascheBenningCreutzburg2020, author = {Hasche, Eberhard and Benning, Dominik and Creutzburg, Reiner}, title = {Using ACES Look Modification Transforms (LMTs) in a Visual Effects Production Environment -Part 1: Rec.709 Inputsand Outputs}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2020.3.MOBMU-205}, pages = {205-1 -- 205-14}, year = {2020}, language = {en} } @article{YuekselSchwarzCreutzburg2020, author = {Y{\"u}ksel, Benjamin and Schwarz, Klaus and Creutzburg, Reiner}, title = {AI-based anomaly detection for cyberattacks on Windows systems-Creation of a prototype for automated monitoring of the process environment}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2020.3.MOBMU-331}, pages = {331-1 -- 331-13}, year = {2020}, language = {en} } @article{LinkeMantkeCreutzburg2020, author = {Linke, Christian and Mantke, Ren{\´e} and Creutzburg, Reiner}, title = {International Biobanking Interface Service - A Concept forHealth Sciences in the Digital Age}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2020.3.MOBMU-304}, pages = {304-1 -- 304-6}, year = {2020}, language = {en} } @article{WhiskerdKoertgeJuergensetal.2020, author = {Whiskerd, Nicholas and K{\"o}rtge, Nicklas and J{\"u}rgens, Kris and Ezennaya-Gomez, Salatiel and Vielhauer, Claus and Dittmann, Jana and Hildebrandt, Mario}, title = {Keystroke biometrics in the encrypted domain: a first study on search suggestion functions of web search engines}, series = {EURASIP Journal on Information Security}, journal = {EURASIP Journal on Information Security}, number = {2020:2}, publisher = {Springer}, doi = {10.1186/s13635-020-0100-8}, year = {2020}, language = {en} } @inproceedings{HildebrandtLamshoeftDittmannetal.2020, author = {Hildebrandt, Mario and Lamsh{\"o}ft, Kevin and Dittmann, Jana and Neubert, Tom and Vielhauer, Claus}, title = {Information Hiding in Industrial Control Systems: An OPC UA based Supply Chain Attack and its Detection}, series = {Proceedings of the 2020 ACM Workshop on Information Hiding and Multimedia Security (IH\&MMSec'20), June 22-24, 2020, Denver, CO, USA}, booktitle = {Proceedings of the 2020 ACM Workshop on Information Hiding and Multimedia Security (IH\&MMSec'20), June 22-24, 2020, Denver, CO, USA}, publisher = {The Association for Computing Machinery}, address = {New York}, doi = {10.1145/3369412}, pages = {115 -- 120}, year = {2020}, language = {en} } @article{PilgermannBocklischCreutzburg2020, author = {Pilgermann, Michael and Bocklisch, Thomas and Creutzburg, Reiner}, title = {Conception and implementation of a course for professional training and education in the field of IoT and smart home security}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2020.3.MOBMU-277}, pages = {277-1 -- 277-8}, year = {2020}, language = {en} } @article{PilgermannWerthCreutzburg2020, author = {Pilgermann, Michael and Werth, S{\"o}ren and Creutzburg, Reiner}, title = {Towards sector specific security operation}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2020.3.MOBMU-254}, pages = {254-1 -- 254-10}, year = {2020}, language = {en} } @book{JohannsenKant2020, author = {Johannsen, Andreas and Kant, Daniel}, title = {IT-Governance, Risiko-und Compliance-Management (IT-GRC) f{\"u}r KMU - Literaturanalyse und Ansatzbildung}, publisher = {Technische Hochschule Brandenburg}, address = {Brandenburg/Havel}, isbn = {978-3-945500-05-7}, issn = {2198-090X}, publisher = {Technische Hochschule Brandenburg}, pages = {28}, year = {2020}, language = {de} } @article{VogelWoelferRamirezDiazetal.2020, author = {Vogel, Sven and W{\"o}lfer, Christian and Ramirez-Diaz, Diego and Flassig, Robert and Sundmacher, Kai and Schwille, Petra}, title = {Symmetry Breaking and Emergence of Directional Flows in Minimal Actomyosin Cortices}, series = {Cells}, journal = {Cells}, publisher = {MDPI}, doi = {10.3390/cells9061432}, pages = {1 -- 10}, year = {2020}, abstract = {Cortical actomyosin flows, among other mechanisms, scale up spontaneous symmetry breaking and thus play pivotal roles in cell differentiation, division, and motility. According to many model systems, myosin motor-induced local contractions of initially isotropic actomyosin cortices are nucleation points for generating cortical flows. However, the positive feedback mechanisms by which spontaneous contractions can be amplified towards large-scale directed flows remain mostly speculative. To investigate such a process on spherical surfaces, we reconstituted and confined initially isotropic minimal actomyosin cortices to the interfaces of emulsion droplets. The presence of ATP leads to myosin-induced local contractions that self-organize and amplify into directed large-scale actomyosin flows. By combining our experiments with theory, we found that the feedback mechanism leading to a coordinated directional motion of actomyosin clusters can be described as asymmetric cluster vibrations, caused by intrinsic non-isotropic ATP consumption with spatial confinement. We identified fingerprints of vibrational states as the basis of directed motions by tracking individual actomyosin clusters. These vibrations may represent a generic key driver of directed actomyosin flows under spatial confinement in vitro and in living systems.}, language = {en} } @article{KantCreutzburgJohannsen2020, author = {Kant, Daniel and Creutzburg, Reiner and Johannsen, Andreas}, title = {Investigation of risks for Critical Infrastructures due to the exposure of SCADA systems and industrial controls on the Internet based on the search engine Shodan}, series = {IS and T International Symposium on Electronic Imaging Science and Technology}, journal = {IS and T International Symposium on Electronic Imaging Science and Technology}, publisher = {Society for Imaging Science and Technology (IS\&T)}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2020.3.MOBMU-253}, pages = {253-1 -- 253-16}, year = {2020}, language = {en} } @article{JohannsenKantCreutzburg2020, author = {Johannsen, Andreas and Kant, Daniel and Creutzburg, Reiner}, title = {Measuring IT security, compliance and data governance within small and medium-sized IT enterprises}, series = {IS and T International Symposium on Electronic Imaging Science and Technology}, journal = {IS and T International Symposium on Electronic Imaging Science and Technology}, publisher = {Society for Imaging Science and Technology (IS\&T)}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2020.3.MOBMU-252}, pages = {252-1 -- 252-11}, year = {2020}, language = {en} } @article{MukhinSokolovaChigirevetal.2020, author = {Mukhin, Nikolay and Sokolova, Irina and Chigirev, Dmitry and Rudaja, Lyudmila and Lebedeva, Galina and Kastro, Rene and Bol'shakov, Maxim and Schmidt, Marc-Peter and Hirsch, S{\"o}ren}, title = {Composite Ferroelectric Coatings Based on a Heat-Resistant Polybenzoxazole Polymer Matrix}, series = {Coatings}, volume = {10}, journal = {Coatings}, number = {3}, publisher = {MDPI}, doi = {10.3390/coatings10030286}, pages = {286}, year = {2020}, language = {en} } @article{JohannsenKant2020, author = {Johannsen, Andreas and Kant, Daniel}, title = {IT-Governance, Risiko- und Compliance-Management (IT‑GRC) - Ein Kompetenz-orientierter Ansatz f{\"u}r KMU}, series = {HMD Praxis der Wirtschaftsinformatik}, journal = {HMD Praxis der Wirtschaftsinformatik}, publisher = {Springer}, address = {Wiesbaden}, doi = {10.1365/s40702-020-00625-8}, year = {2020}, language = {de} } @article{RevinaAksuMeister2021, author = {Revina, Aleksandra and Aksu, {\"U}nal and Meister, Vera G.}, title = {Method to Address Complexity in Organizations Based on a Comprehensive Overview}, series = {Information 2021}, volume = {12}, journal = {Information 2021}, number = {10}, publisher = {MDPI}, doi = {10.3390/info12100423}, pages = {423}, year = {2021}, language = {en} } @article{Schnitzer2021, author = {Schnitzer, Julia}, title = {Generative Design For Creators - The Impact Of Data Driven Visualization And Processing In The Field Of Creative Business}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-022}, pages = {022-1 -- 022-6}, year = {2021}, language = {en} } @article{OeppertHartzWehneretal.2021, author = {Oeppert, Luise and Hartz, Tobias and Wehner, Kathrin and Schrader, Thomas and Meier, Jens}, title = {FHIR-Datenmodell zur {\"U}bermittlung von Tumordaten zwischen Krebsregistern und IQTIG}, series = {GMS Medizinische Informatik, Biometrie und Epidemiologie}, volume = {17}, journal = {GMS Medizinische Informatik, Biometrie und Epidemiologie}, number = {Iss 4}, publisher = {German Medical Science GMS Publishing House}, doi = {10.3205/mibe000231}, year = {2021}, language = {de} } @article{RizunRevinaMeister2021, author = {Rizun, Nina and Revina, Aleksandra and Meister, Vera G.}, title = {Assessing business process complexity based on textual data: Evidence from ITIL IT ticket processing}, series = {Business Process Management Journal}, volume = {27}, journal = {Business Process Management Journal}, number = {7}, publisher = {Emerald}, issn = {1758-4116}, doi = {10.1108/BPMJ-04-2021-0217}, pages = {1966 -- 1998}, year = {2021}, language = {en} } @article{JohnWeizelHeumannetal.2021, author = {John, Stefanie and Weizel, David and Heumann, Anna Sophie and Fischer, Anja and Orlowski, Katja and Mrkor, Kai-Uwe and Edelmann-Nusser, J{\"u}rgen and Witte, Kerstin}, title = {Persisting inter-limb differences in patients following total hip arthroplasty four to five years after surgery? A preliminary cross-sectional study}, series = {BMC Musculoskelet Disorders}, volume = {22}, journal = {BMC Musculoskelet Disorders}, publisher = {BioMed Central}, issn = {1471-2474}, doi = {10.1186/s12891-021-04099-7}, year = {2021}, language = {en} } @article{Sasaki2021, author = {Sasaki, Felix}, title = {K{\"u}nstliche Intelligenz in der Ausbildung von Wissensarbeiterinnen und Wissensarbeitern}, series = {API : Ausbilden, Publizieren, Informieren - studentisches Magazin der HAW Hamburg}, volume = {2}, journal = {API : Ausbilden, Publizieren, Informieren - studentisches Magazin der HAW Hamburg}, number = {1}, publisher = {Hamburg University Press}, issn = {2699-6693}, doi = {10.15460/apimagazin.2021.2.1.65}, pages = {1 -- 16}, year = {2021}, language = {de} } @article{MukhinKonoplevOseevetal.2021, author = {Mukhin, Nikolay and Konoplev, Georgii and Oseev, Aleksandr and Schmidt, Marc-Peter and Stepanova, Oksana and Kozyrev, Andrey and Dmitriev, Alexander and Hirsch, Soeren}, title = {Label-Free Protein Detection by Micro-Acoustic Biosensor Coupled with Electrical Field Sorting. Theoretical Study in Urine Models}, series = {Sensors}, volume = {21}, journal = {Sensors}, number = {7}, publisher = {MDPI}, doi = {10.3390/s21072555}, pages = {2555}, year = {2021}, language = {en} } @article{RojekIslamHartmannetal.2021, author = {Rojek, Lukasz and Islam, Saiful and Hartmann, Michael and Creutzburg, Reiner}, title = {IoT-Based Real-Time Monitoring System for a Smart Energy House}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-038}, pages = {38-1 -- 38-10}, year = {2021}, language = {en} } @article{SchwarzSchwarzFuchsetal.2021, author = {Schwarz, Franziska and Schwarz, Klaus and Fuchs, Daniel and Creutzburg, Reiner and Akopian, David}, title = {Firmware Vulnerability Analysis of Widely Used Low-Budget TP-Link Routers}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-135}, pages = {135-1 -- 135-11}, year = {2021}, language = {en} } @article{IslamPatilRafajlovskietal.2021, author = {Islam, Saiful and Patil, Sanket Shrikant and Rafajlovski, Goran and Hartmann, Michael and Creutzburg, Reiner}, title = {Technical design and operational control of a decentralized microgrid in rural area}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-097}, pages = {97-1 -- 97-7}, year = {2021}, language = {en} } @article{PfeifferDilipSuryawanshietal.2021, author = {Pfeiffer, Thomas and Dilip, Khadse Himanshu and Suryawanshi, Raunak and Kishnamurthy, Gnana Swaroop and T{\´e}llez, Batcheva Dom{\´i}nguez and Creutzburg, Reiner and Hartmann, Michael}, title = {Airflow visualization and air purifier positioning optimization in potentially COVID-19 contaminated classrooms}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-039}, pages = {39-1 -- 39-15}, year = {2021}, language = {en} } @article{HascheKaraschewskiCreutzburg2021, author = {Hasche, Eberhard and Karaschewski, Oliver and Creutzburg, Reiner}, title = {Using ACES Look Modification Transforms (LMTs) in VFX Environments - Part 2: Gamut Mapping}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-108}, pages = {108-1 -- 108-14}, year = {2021}, language = {en} } @article{SchwarzSchwarzCreutzburg2021, author = {Schwarz, Franziska and Schwarz, Klaus and Creutzburg, Reiner}, title = {Improving Detection of Manipulated Passport Photos - Train- ing Course for Border Control Inspectors to Detect Morphed Facial Passport Photos - Part I: Introduction, State-of-the-Art and Preparatory Tests and Experiments}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-136}, pages = {136-1 -- 136-9}, year = {2021}, language = {en} } @article{RichterSchwarzCreutzburg2021, author = {Richter, Maximilian and Schwarz, Klaus and Creutzburg, Reiner}, title = {Conception and Implementation of Professional Laboratory Exercises in the field of ICS/SCADA Security Part II: Red Teaming and Blue Teaming}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-074}, pages = {74-1 -- 74-13}, year = {2021}, language = {en} } @article{BasseyRojekHartmannetal.2021, author = {Bassey, Uduak and Rojek, Lukasz and Hartmann, Michael and Creutzburg, Reiner and Volland, Arne}, title = {The potential of NIR spectroscopy in the separation of plastics for pyrolysis}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-143}, pages = {143-1 -- 143-14}, year = {2021}, language = {en} } @article{RichterSchwarzCreutzburg2021, author = {Richter, Maximilian and Schwarz, Klaus and Creutzburg, Reiner}, title = {Conception and Implementation of Professional Laboratory Exercises in the field of ICS/SCADA Security - Part I: Fundamentals}, series = {Electronic imaging}, journal = {Electronic imaging}, publisher = {Society for Imaging Science and Technology}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-073}, pages = {73-1 -- 73-13}, year = {2021}, language = {en} } @article{SchwarzCreutzburg2021, author = {Schwarz, Klaus and Creutzburg, Reiner}, title = {Design of Professional Laboratory Exercises for Effective State-of-the-Art OSINT Investigation Tools - Part 1: RiskIQ Passive-Total}, series = {Electronic imaging}, journal = {Electronic imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-043}, pages = {43-1 -- 43-7}, year = {2021}, language = {en} } @article{SchwarzCreutzburg2021, author = {Schwarz, Klaus and Creutzburg, Reiner}, title = {Design of Professional Laboratory Exercises for Effective State-of-the-Art OSINT Investigation Tools - Part 2: Censys}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-044}, pages = {44-1 -- 44-8}, year = {2021}, language = {en} } @article{SchwarzCreutzburg2021, author = {Schwarz, Klaus and Creutzburg, Reiner}, title = {Design of Professional Laboratory Exercises for Effective State-of-the-Art OSINT Investigation Tools - Part 3: Maltego}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-045}, pages = {45-1 -- 45-23}, year = {2021}, language = {en} } @article{Vollmer2021, author = {Vollmer, Michael}, title = {Gefrierende Gew{\"a}sser}, series = {Physik in unserer Zeit}, volume = {52}, journal = {Physik in unserer Zeit}, number = {1}, publisher = {Wiley-Blackwell}, doi = {10.1002/piuz.202001589}, pages = {19 -- 25}, year = {2021}, language = {de} } @article{Levina2021, author = {Levina, Olga}, title = {Von Ethik zu Recht : Der AI Act und seine Bedeutung f{\"u}r die Gestaltung von algorithmischen Systemen}, series = {Informatik aktuell}, journal = {Informatik aktuell}, publisher = {Alkmene Verlag}, issn = {2511-7564}, year = {2021}, language = {de} } @article{KantJohannsenCreutzburg2021, author = {Kant, Daniel and Johannsen, Andreas and Creutzburg, Reiner}, title = {Analysis of IoT Security Risks based on the exposure of the MQTT Protocol}, series = {IS and T International Symposium on Electronic Imaging Science and Technology}, volume = {33}, journal = {IS and T International Symposium on Electronic Imaging Science and Technology}, publisher = {Society for Imaging Science and Technology (IS\&T)}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-096}, pages = {096-1 -- 096-8}, year = {2021}, language = {en} } @article{JohnOrlowskiMrkoretal.2022, author = {John, Stefanie and Orlowski, Katja and Mrkor, Kai-Uwe and Edelmann-Nusser, J{\"u}rgen and Witte, Kerstin}, title = {Differences in hip muscle strength and static balance in patients with transfemoral amputations classified at different K-levels : A preliminary cross-sectional study}, series = {Canadian Prosthetics \& Orthotics Journal (CPOJ)}, volume = {Vol. 5}, journal = {Canadian Prosthetics \& Orthotics Journal (CPOJ)}, number = {No.1}, publisher = {University of Toronto Libraries}, issn = {2561-987X}, doi = {10.33137/cpoj.v5i1.37456}, year = {2022}, language = {en} } @article{MarcusGerlGrossetal.2022, author = {Marcus, von der Heyde and Gerl, Armin and Groß, Rainer and Klapper, Frank and Meister, Vera G. and Knaden, Andreas and Rehm, Simone}, title = {Gemeinsame Digitalisierung durch die Entwicklung von IT-Governance-Strukturen auf Landesebene}, series = {Wirtschaftsinformatik \& Management}, journal = {Wirtschaftsinformatik \& Management}, publisher = {Gabler}, doi = {10.1365/s35764-022-00393-8}, year = {2022}, language = {de} } @article{WeimerBuschhartBroelzetal.2022, author = {Weimer, Katja and Buschhart, Cliff and Broelz, Ellen K. and Enck, Paul and Horing, Bj{\"o}rn}, title = {Bibliometric Properties of Placebo Literature From the JIPS Database: A Descriptive Study}, series = {Frontiers in Psychiatry}, volume = {13}, journal = {Frontiers in Psychiatry}, publisher = {Frontiers Research Foundation}, issn = {1664-0640}, doi = {10.3389/fpsyt.2022.853953}, year = {2022}, language = {en} } @article{RegehlyHecht2022, author = {Regehly, Martin and Hecht, Stefan}, title = {Auf dem Weg zum Replikator}, series = {Physik in unserer Zeit}, volume = {53}, journal = {Physik in unserer Zeit}, number = {3}, publisher = {Wiley-VCH GmbH}, issn = {1521-3943}, doi = {10.1002/piuz.202201637}, pages = {125 -- 131}, year = {2022}, language = {de} } @article{Kraska2022, author = {Kraska, Martin}, title = {Meclib: Dynamic and Interactive Figures in STACK Questions Made Easy}, series = {International Journal of Emerging Technologies in Learning (iJET)}, volume = {17}, journal = {International Journal of Emerging Technologies in Learning (iJET)}, number = {23}, publisher = {International Association of Online Engineering}, issn = {1863-0383}, doi = {10.3991/ijet.v17i23.36501}, pages = {15 -- 27}, year = {2022}, abstract = {Making and interpretation of drawings and schematics is an important skill to be developed in engineering education. The question type STACK in the Moodle learning management system combined with the interactive graphics library JSXGraph has a great potential for implementation of e-learning resources addressing these skills in formative and summative settings. The authoring process of such materials is complex due to multiple markup and programming languages like HTML, LaTeX, Maxima and JavaScript (JS) being involved. The Meclib concept mitigates this complexity and allows for efficient bulk production of material with consistent appearance and user experience. The core of Meclib is a set of pre-defined JSXGraph-based objects with an interface to Maxima, such that no problem specific JS code is required at all. The present paper outlines the basic ideas of the implementation and demonstrates the approach for some typical examples of different complexity. The focus is on applications in engineering mechanics, starting from static illustrations up to an editor for free body diagrams, with rich adaptive formative feedback.}, language = {en} } @article{TumarkinTyurninaMukhinetal.2022, author = {Tumarkin, Andrey and Tyurnina, Natalya and Mukhin, Nikolay and Tyurnina, Zoya and Sinelshchikova, Olga and Gagarin, Alexander and Sapego, Eugeny and Kretser, Yriy}, title = {Glass-ceramic ferroelectric composite material BaTiO3/KFeSi for microwave applications}, series = {Composite Structures}, volume = {281}, journal = {Composite Structures}, publisher = {Elsevier}, issn = {0263-8223}, pages = {1 -- 10}, year = {2022}, abstract = {Glass-ceramic composites consisting of potassium-iron-silicate glass and barium titanate mixed in various proportions were successfully synthesized by low-temperature sintering. The crystal structure of the obtained composite samples, the porosity and the microhardness were studied by the X-ray diffraction, the electron microscopy, the weight method, and the Vickers method. Electrical characteristics (dielectric permittivity, tunability and losses) of as-prepared and annealed in oxygen medium samples were investigated at microwaves. According to structural analysis, the synthesized samples are a mixture of KFeSi glass, ferroelectric BaTiO3, and dielectric barium polytitanates; the ratio of the latter determines the electrical properties of the composites. Depending on the content of barium titanate, the studied composite samples show a permittivity from 50 to 270 with a dielectric loss level of 0,1-0,02 in frequency range from 3 to 10 GHz. Annealing of composite samples in an oxygen-containing environment leads to an increase in their dielectric permittivity and tunability by 10-25\% and a twofold decrease in dielectric loss.}, language = {en} } @article{KombeLang'atNjoguetal.2022, author = {Kombe, Emmanuel Yeri and Lang'at, Nickson and Njogu, Paul and Malessa, Reiner and Weber, Christian-Toralf and Njoka, Francis and Krause, Ulrich}, title = {Process modeling and evaluation of optimal operating conditions for production of hydrogen-rich syngas from air gasification of rice husks using aspen plus and response surface methodology}, series = {Bioresource Technology}, volume = {361}, journal = {Bioresource Technology}, publisher = {Elsevier}, issn = {0960-8524}, pages = {1 -- 11}, year = {2022}, abstract = {Biomass gasification is recognized as a viable avenue to accelerate the sustainable production of hydrogen. In this work, a numerical simulation model of air gasification of rice husks is developed using the Aspen Plus to investigate the feasibility of producing hydrogen-rich syngas. The model is experimentally validated with rice husk gasification results and other published studies. The influence of temperature and equivalence ratio on the syngas composition, H2 yield, LHVSyngas, H2/CO ratio, CGE, and PCG was studied. Furthermore, the synchronized effects of temperature and ER are studied using RSM to determine the operational point of maximizing H2 yield and PCG. The RSM analysis results show optimum performance at temperatures between 820 °C and 1090 °C and ER in the range of 0.06-0.10. The findings show that optimal operating conditions of the gasification system can be achieved at a more refined precision through simulations coupled with advanced optimization techniques.}, language = {en} } @article{RuzankinaMukhinMermouletal.2022, author = {Ruzankina, Iuliia and Mukhin, Nikolay and Mermoul, Ali and Parfenov, Vadim and Fron, Eduard and Ferrini, Gabriele}, title = {Surface optical sensitivity enhanced by a single dielectric microsphere}, series = {Optics Express}, volume = {30}, journal = {Optics Express}, number = {24}, publisher = {Optica}, pages = {43021 -- 43036}, year = {2022}, abstract = {Single dielectric microspheres can manipulate light focusing and collection to enhance optical interaction with surfaces. To demonstrate this principle, we experimentally investigate the enhancement of the Raman signal collected by a single dielectric microsphere, with a radius much larger than the exciting laser spot size, residing on the sample surface. The absolute microsphere-assisted Raman signal from a single graphene layer measured in air is more than a factor of two higher than that obtained with a high numerical aperture objective. Results from Mie's theory are used to benchmark numerical simulations and an analytical model to describe the isolated microsphere focusing properties. The analytical model and the numerical simulations justify the Raman signal enhancement measured in the microsphere-assisted Raman spectroscopy experiments.}, language = {en} } @article{WangHarthPuzyrevetal.2022, author = {Wang, Jing and Harth, Kirsten and Puzyrev, Dmitry and Stannarius, Ralf}, title = {The effect of obstacles near a silo outlet on the discharge of soft spheres}, series = {New Journal of Physics}, volume = {24}, journal = {New Journal of Physics}, publisher = {IOP}, doi = {10.1088/1367-2630/ac8bea}, year = {2022}, language = {en} } @article{KuznetsovFroripSuenteretal.2022, author = {Kuznetsov, Artur and Frorip, Aleksandr and S{\"u}nter, Alar and Korsakov, Vadim and Konoplev, Georgii and Stepanova, Oksana and Roschina, Natalia and Ovsyannikov, Nikolay and Lialin, Daniil and Gerasimchuk, Roman and Dmitriev, Alexander and Mukhin, Nikolay and Hirsch, S{\"o}ren}, title = {Optical Chemical Sensor Based on Fast-Protein Liquid Chromatography for Regular Peritoneal Protein Loss Assessment in End-Stage Renal Disease Patients on Continuous Ambulatory Peritoneal Dialysis}, series = {Chemosensors}, volume = {10}, journal = {Chemosensors}, number = {6}, publisher = {MDPI}, doi = {10.3390/chemosensors10060232}, year = {2022}, language = {en} } @article{KonoplevAgafonovaBakhchovaetal.2022, author = {Konoplev, Georgii and Agafonova, Darina and Bakhchova, Liubov and Mukhin, Nikolay and Kurachkina, Marharyta and Schmidt, Marc-Peter and Verlov, Nikolay and Sidorov, Alexander and Oseev, Aleksandr and Stepanova, Oksana and Kozyrev, Andrey and Dmitriev, Alexander and Hirsch, S{\"o}ren}, title = {Label-Free Physical Techniques and Methodologies for Proteins Detection in Microfluidic Biosensor Structures}, series = {Biomedicines}, volume = {10}, journal = {Biomedicines}, number = {2}, publisher = {MDPI}, issn = {2227-9059}, doi = {10.3390/biomedicines10020207}, pages = {207}, year = {2022}, language = {en} } @article{LamshoeftNeubertHielscheretal.2022, author = {Lamsh{\"o}ft, Kevin and Neubert, Tom and Hielscher, Jonas and Vielhauer, Claus}, title = {Knock, knock, log: Threat analysis, detection \& mitigation of covert channels in syslog using port scans as cover}, series = {Forensic Science International: Digital Investigation}, volume = {40}, journal = {Forensic Science International: Digital Investigation}, publisher = {Elsevier}, issn = {2666-2817}, doi = {10.1016/j.fsidi.2022.301335}, year = {2022}, language = {en} } @inproceedings{KantJohannsen2022, author = {Kant, Daniel and Johannsen, Andreas}, title = {Evaluation of AI-based use cases for enhancing the cyber secu- rity defense of small and medium-sized companies (SMEs)}, series = {Proc. IS \& T International Symposium on Electronic Imaging: Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications}, booktitle = {Proc. IS \& T International Symposium on Electronic Imaging: Mobile Devices and Multimedia: Enabling Technologies, Algorithms, and Applications}, address = {Springfield, VA}, doi = {10.2352/EI.2022.34.3.MOBMU-387}, pages = {387-1 -- 387-8}, year = {2022}, language = {en} } @article{FitzScheegScheeg2022, author = {Fitz, Lukas R. G. and Scheeg, Michaela and Scheeg, Jochen}, title = {Amplifying Human Factors in the Inquiry of SMEs' Needs in Digitalization Collaborations with External Service Providers}, series = {Procedia Computer Science}, volume = {200}, journal = {Procedia Computer Science}, publisher = {Elsevier}, issn = {1877-0509}, doi = {10.1016/j.procs.2022.01.257}, pages = {595 -- 601}, year = {2022}, language = {en} } @article{GoschinVogelFlassig2022, author = {Goschin, Tobias and Vogel, Mathias and Flassig, Robert}, title = {Energy Technologies For Decarbonizing The Steel Processing Industry - A Numerical Study}, series = {IFAC-PapersOnLine}, volume = {55}, journal = {IFAC-PapersOnLine}, number = {9}, publisher = {Elsevier}, doi = {https://doi.org/10.1016/j.ifacol.2022.07.001}, pages = {1 -- 5}, year = {2022}, abstract = {This study analyzes approaches to decarbonize the energy supply of the secondary steel processing industry. Therefore, real data from a secondary steel production company is used in combination with state-of-the art low carbon energy supply technologies. Also, the use of waste heat from a pusher furnace for process integration is considered. The developed temporal process model allows holistic optimizing and expanding the steel making process system regarding techno-economic criteria. As we show, implementing the annual heat demand of a municipality shows that a nearly 100 \% self-sufficient heat supply is possible.}, language = {en} } @article{TrittelKloppHarthetal.2022, author = {Trittel, Torsten and Klopp, Christoph and Harth, Kirsten and Stannarius, Ralf}, title = {Stability and Rupture of Liquid Crystal Bridges under Microgravity}, series = {Crystals}, volume = {12}, journal = {Crystals}, number = {8}, publisher = {MDPI}, doi = {https://doi.org/10.3390/cryst12081092}, pages = {16}, year = {2022}, language = {en} } @article{VaherTammSalusetal.2023, author = {Vaher, Ivi and Tamm, Anna-Liisa and Salus, Marit and Reisberg, Kirkke and V{\"a}hi, Aleksandra and Pallon, Helena and Paeste, Andra and Pirk, B{\"a}thel-Betty and Merila, Margus and Schrader, Thomas}, title = {Effectiveness of massage chair and classic massage in recovery from physical exertion: a pilot study}, series = {Journal of Novel Physiotherapy and Rehabilitation}, volume = {2023}, journal = {Journal of Novel Physiotherapy and Rehabilitation}, number = {7}, publisher = {HSPI}, doi = {10.29328/journal.jnpr.1001050}, pages = {8 -- 15}, year = {2023}, abstract = {Quick and cost-effective recovery is foundational to high-quality training and good competition results in today's sports. The aim of the research was to elucidate the effects of hand and massage chair massage on the biomechanical parameters of muscles of lower limbs and back, indicators of Pain Pressure Thresholds (PPT) and subjectively perceived fatigue. A total of 32 female recreational athletes (18 - 50 years old) were assigned to a hand massage, massage chair, or lying down the group. They were measured for muscle biomechanical properties (MyotonPro), PPT (Wagner Instruments) and subjectively perceived fatigue (VAS scale) before and after fatigue tests and treatment. The recovery procedure and subjective satisfaction with treatment were rated on a Likert scale. Changes in the median value of m. rectus femoris and m. gastrocnemius stiffness with treatment showed that hand massage could be more effective in reducing stiffness, as compared to chair massage. Hand massage may have benefits for recovery from physical exertion, but due to the individuality of subjects, detailed methodological studies are needed to evaluate the effects of massage chair vs. hand massage.}, language = {en} } @inproceedings{TetzlaffPurohitSpalleketal.2023, author = {Tetzlaff, Laura and Purohit, Anne-Maria and Spallek, Jacob and Holmberg, Christine and Schrader, Thomas}, title = {Evaluating Interoperability in German Critical Incident Reporting Systems}, series = {German Medical Data Sciences 2023 - Science. Close to People. Proceedings of the 68th Annual Meeting of the German Association of Medical Informatics, Biometry, and Epidemiology e.V. (gmds) 2023, Heilbronn, Germany}, booktitle = {German Medical Data Sciences 2023 - Science. Close to People. Proceedings of the 68th Annual Meeting of the German Association of Medical Informatics, Biometry, and Epidemiology e.V. (gmds) 2023, Heilbronn, Germany}, publisher = {IOS Press}, doi = {10.3233/SHTI230722}, pages = {249 -- 257}, year = {2023}, abstract = {In industrialised countries, one in ten patients suffers harm during hospitalization. Critical Incident Reporting Systems (CIRS) aim to minimize this by learning from errors and identifying potential risks. However, a lack of interoperability among the 16 CIRS in Germany hampers their effectiveness.}, language = {en} } @inproceedings{MarkgrafDietrichMuelleretal.2023, author = {Markgraf, Klaus and Dietrich, Benjamin and M{\"u}ller, Katja and Flassig, Robert and Flassig, Peter}, title = {FINEconcepts - Wissenstransfer und Energiesystemoptimierung mithilfe des digitalen Zwillings}, series = {NWK, HS Harz, 2023}, booktitle = {NWK, HS Harz, 2023}, publisher = {HS Harz}, pages = {428 -- 435}, year = {2023}, abstract = {Climate change, but also geopolitical circumstances, are moving topics such as energy efficiency and renewable energies more and more into the focus of the population, economy , and politics. As a result, the will to optimize new and existing energy systems extends from private individuals to companies and even entire communities. This work describes the development and usage of a new software called FINEconcepts which creates a digital twin of an energy system. This virtual model can then be used to optimize the energy system based on annual costs, CO2 emissions or other relevant criteria such as self-sufficiency. Because all system components, which include renewable technologies as well, can be added as a building block with chosen but changeable parameters, the software allows the user to explore and awaken interest and understanding of technologies that were previously considered too costly, irrelevant, or unrealistic. Implemented projects in small and large companies as well as in residential areas did prove, that the usage of FINEconcepts leads not only to more efficient energy systems by increasing the use of renewable energy, but also increased knowledge and understanding in terms of energy. Besides economics, ecology and security, understanding is an equally important factor in achieving a sustainable energy supply.}, language = {en} } @article{WeberSteinPilgermannetal.2023, author = {Weber, Simon B. and Stein, Stefan and Pilgermann, Michael and Schrader, Thomas}, title = {Attack Detection for Medical Cyber-Physical Systems - A Systematic Literature Review}, series = {IEEE Access}, journal = {IEEE Access}, number = {11}, publisher = {IEEE}, doi = {10.1109/ACCESS.2023.3270225}, pages = {41796 -- 41815}, year = {2023}, abstract = {The threat situation due to cyber attacks in hospitals is emerging and patient life is at risk. One significant source of potential vulnerabilities is medical cyber-physical systems (MCPS). Detecting intrusions in this environment faces challenges different from other domains, mainly due to the heterogeneity of devices, the diversity of connectivity types, and the variety of terminology. To summarize existing results, we conducted a structured literature review (SLR) following the guidelines of Kitchenham et al. for SLRs in software engineering. We developed six research questions regarding detection approach, detection location, included features, adversarial focus, utilized datasets, and intrusion prevention. We identified that most researchers focused on an anomaly-based detection approach at the network layer. The primary focus was on the detection of malicious insiders. While several researchers used publicly available datasets for training and testing their algorithms, the lack of suitable datasets resulted in the development of testbeds consisting of various medical devices. Based on the results, we formulated five future research topics. First, the special conditions of hospital networks, the MCPS deployed within them, and the contrasts to other IT and OT environments should be examined. Thereupon, MCPS-specific datasets should be created that allow researchers to address the health domain's unique requirements and possibilities. At the same time, endeavors aimed at standardization in this area should be supported and expanded. Moreover, the use of medical context for attack detection should be further explored. Last but not least, efforts for MCPS-tailored intrusion prevention should be intensified. This way, the emerging threat landscape can be addressed, IT security in hospitals can be improved, and patient health can be protected.}, language = {en} } @unpublished{Nitze2023, author = {Nitze, Andr{\´e}}, title = {Future-proofing Education: A Prototype for Simulating Oral Examinations Using Large Language Models}, publisher = {arXiv}, doi = {10.48550/arXiv.2401.06160}, pages = {1 -- 6}, year = {2023}, abstract = {This study explores the impact of Large Language Models (LLMs) in higher education, focusing on an automated oral examination simulation using a prototype. The design considerations of the prototype are described, and the system is evaluated with a select group of educators and students. Technical and pedagogical observations are discussed. The prototype proved to be effective in simulating oral exams, providing personalized feedback, and streamlining educators' workloads. The promising results of the prototype show the potential for LLMs in democratizing education, inclusion of diverse student populations, and improvement of teaching quality and efficiency.}, language = {en} } @inproceedings{LepperOehlerKinzleretal.2023, author = {Lepper, Markus and Oehler, Michael and Kinzler, Hartmuth and Tranc{\´o}n y Widemann, Baltasar}, title = {Mathematische Remodellierung zur Erforschung der exakten Semantik einfacher konventioneller Notationssysteme}, series = {Notation. Schnittstelle zwischen Komposition, Interpretation und Analyse. 19. Jahreskongress der Gesellschaft f{\"u}r Musiktheorie Z{\"u}rich 2019 (GMTH Proceedings 2019)}, booktitle = {Notation. Schnittstelle zwischen Komposition, Interpretation und Analyse. 19. Jahreskongress der Gesellschaft f{\"u}r Musiktheorie Z{\"u}rich 2019 (GMTH Proceedings 2019)}, publisher = {Gesellschaft f{\"u}r Musiktheorie (GMTH) e.V.}, doi = {10.31751/p.257}, pages = {69 -- 85}, year = {2023}, abstract = {Das Projekt semPart - Semantik der Partitur versucht, durch {\"U}bertragung von Methoden der Informatik auf die musikalische Notation exakte Aussagen {\"u}ber deren Semantik zu erzielen. Dies geschieht durch Remodellierung, also durch das Erstellen kleiner mathematischer Modelle, die jeweils das historisch-kulturell bestimmte Dekodieren von isolierten Parameter-Schichten eines Notates nachbilden. Erstes wichtiges Ergebnis ist, dass es in keinem Bereich jemals eine einzige ›richtige‹ Definition von Syntax und Semantik geben kann, sondern einen Katalog von vielf{\"a}ltigen theoretisch m{\"o}glichen und in der Praxis auch angetroffenen Varianten. Diese sind durch ihre Remodellierung exakt identifizier- und benennbar; ihre Gesamtheit bildet ein Raster, durch das Notationsstile und -werkzeuge beschreib- und vergleichbar werden. Dieses Raster und die Remodelle sind besonders politisch wichtig, zur F{\"o}rderung einer {\"o}ffentlichen Diskussion von Notationssystemen und ihren Eigenschaften, da zunehmend die Arbeitsweise von digitalen Werkzeugen die notationelle Praxis zu {\"u}berformen und zu filtrieren droht. The project semPart - Semantics of the Musical Score tries to clarify the semantics of musical notation by applying methods from informatics. This is done by remodelling, i. e., constructing small mathematical models that mimic the mentally and culturally determined processes taking place when decoding isolated parameters in musical notation. The first important result is that there can never be one single 'correct' definition of semantics in any area but rather a catalogue of many theoretically possible variants encountered in practice. Through their remodelling, these can be precisely identified and named; their totality constitutes a classification grid applicable to styles, corpora, single scores and digital tools such as editors or encoding standards. This grid and the remodels are of particular political importance in promoting a public discussion on notation systems and their characteristics, given that the increasing use of digital processing systems threatens to over-shape and narrow down notational practice.}, language = {de} } @techreport{HaaseMertzenMusolffetal.2023, author = {Haase, Claudia and Mertzen, Daniela and Musolff, Myriam and Panitz, Michael and Schiller, Carina and Schreiber, Stefanie and Spiecker, Claus and Wolff, Ian}, title = {IN-FDM-BB Werkstattbericht: W 1.2.2 Auswertung Bedarfserhebung mit daraus folgenden Aktivit{\"a}ten}, publisher = {Zenodo}, doi = {10.5281/zenodo.10408198}, pages = {385}, year = {2023}, abstract = {Forschungsdatenmanagement (FDM) gewinnt an den Hochschulen in Brandenburg eine immer gr{\"o}ßere Bedeutung. F{\"u}r den Aufbau und die Institutionalisierung eines nachhaltigen FDM an den brandenburgischen Hochschulen ist eine m{\"o}glichst genaue Ermittlung des aktuellen Kenntnisstandes der Forschenden und deren Bedarfe bez{\"u}glich des Umgangs mit Forschungsdaten erforderlich. Hierzu diente die Bedarfserhebung, die im Rahmen des vom BMBF und dem MWFK gef{\"o}rderten Projekts IN-FDM-BB durchgef{\"u}hrt wurde. Beteiligt an der brandenburgweiten Umfrage waren alle acht staatlichen forschenden Hochschulen: vier Universit{\"a}ten (die Brandenburgische Technische Universit{\"a}t Cottbus - Senftenberg (BTU), die Filmuniversit{\"a}t Babelsberg KONRAD WOLF (FB), die Europa-Universit{\"a}t Viadrina Frankfurt (Oder) (EUV) und die Universit{\"a}t Potsdam (UP)) und vier Hochschulen f{\"u}r Angewandte Wissenschaften (die Fachhochschule Potsdam (FHP), die Hochschule f{\"u}r nachhaltige Entwicklung Eberswalde (HNEE), die Technische Hochschule Brandenburg (THB) und die Technische Hochschule Wildau (THW)). Die Hochschulen unterscheiden sich erheblich in ihrer Gr{\"o}ße und fachlichen Ausrichtung. So hat die UP deutlich {\"u}ber 20.000 Studierende und {\"u}ber 1.900 Professor*innen und akademische Mitarbeiter*innen, die FB hingegen, weniger als 1.000 Studierende und ca. 140 Professor*innen und akademische Mitarbeiter*innen. Landesweit sind fast alle Fachdisziplinen vertreten, jedoch mit unterschiedlichen Schwerpunkten je Hochschule. Das Ziel der Bedarfserhebung war, den Kenntnisstand bez{\"u}glich des professionellen Umgangs mit Forschungsdaten der Forschenden an den einzelnen Hochschulen zu ermitteln, FDM-Bedarfe zu erkennen und daraus m{\"o}gliche FDM-Aktivit{\"a}ten f{\"u}r die jeweilige Hochschule abzuleiten. Die Bedarfserhebung richtete sich daher in erster Linie an die Forschenden der jeweiligen Hochschule.}, language = {de} } @inproceedings{RichterWrobel2023, author = {Richter, Nancy and Wrobel, Martin}, title = {The Impact of prototyping on the survival chances of digital early-stage startups: Findings and insights from explorative expert interviews}, series = {Proceedings of the 18th European Conference on Innovation and Entrepreneurship, ECIE 2023}, volume = {18}, booktitle = {Proceedings of the 18th European Conference on Innovation and Entrepreneurship, ECIE 2023}, number = {2}, publisher = {Academic Conferences International Limited}, doi = {10.34190/ecie.18.2.1714}, pages = {772 -- 779}, year = {2023}, abstract = {The products of digital entrepreneurs are highly innovative, and their business models contribute to the prosperity and further development of the economy and society. However, studies indicate that most of all startups fail, particularly during the early stages of their business journey Prototyping as part of Lean Startup or Business Model Testing approaches, can assist digital early-stage startups in navigating uncertainty and achieving successful product launches. However, these methods are applied very individually and there is little empirical research on best practices. We therefore conducted 65 explorative expert interviews and asked successful startups about their prototyping practices. Our results include learnings on the prototyping process and the testing format, the role of the founding team during prototyping practices, the customer focus and the role of networks. Our study adds important details to theory and practice of the innovation and prototyping processes of digital early-stage startups. Our results offer actionable advice and guidance to any current and potential entrepreneur, but especially to first-time founders and less experienced executives in early stage-startups. Additionally, our contribution enhances the theoretical understanding of the Lean Startup approach and prototyping practices.}, language = {en} } @techreport{vonFranseckyHaaseHeinrichetal.2023, author = {von Fransecky, Tanja and Haase, Claudia and Heinrich, Marcus and Jacob, Boris and Musolff, Myriam and Panitz, Michael and Spiecker, Claus and Wolff, Ian}, title = {IN-FDM-BB Werkstattbericht: W 1.1.1 Konzepte f{\"u}r Informationsmaterialien und FDM-Webseite}, publisher = {Zenodo}, doi = {10.5281/ZENODO.8069814}, pages = {50}, year = {2023}, abstract = {Forschungsdatenmanagement gewinnt immer gr{\"o}ßere Bedeutung in der Forschung. Daher arbeiten im Projekt IN-FDM-BB acht Hochschulen an der Institutionalisierung und nachhaltigen Verstetigung von Forschungsdatenmanagement (FDM) in Brandenburg. Im Rahmen des lokalen Kompetenzaufbaus und der Institutionalisierung von FDM im Projekt geht es im Arbeitspaket AP 1 u. a. um „Entwicklung von hochschulspezifischen Informationsmaterialien (z. B. Flyer, FDM-Leitf{\"a}den, FAQs)" und „Aufbau und/oder Aktualisierung einer lokalen FDM-Webseite". Der Werkstattbericht Konzept f{\"u}r Informationsmaterialien und FDM-Webseite (W 1.1.1) ist der erste Bericht, den alle acht am Projekt IN-FDM-BB beteiligen Hochschulen vorlegen und der konkret die lokale Institutionalisierung von FDM an den Einrichtungen behandelt.}, language = {de} } @inproceedings{PepeBuchholzLasenby2024, author = {Pepe, Alberto and Buchholz, Sven and Lasenby, Joan}, title = {Clifford Group Equivariant Neural Network Layers for Protein Structure Prediction}, series = {Northern Lights Deep Learning Conference, VOL 233, 09-11 Januar 2024, Tromso, Norwegen}, booktitle = {Northern Lights Deep Learning Conference, VOL 233, 09-11 Januar 2024, Tromso, Norwegen}, publisher = {PMLR}, pages = {1 -- 7}, year = {2024}, abstract = {We employ Clifford Group Equivariant Neural Network (CGENN) layers to predict protein coordinates in a Protein Structure Prediction (PSP) pipeline. PSP is the estimation of the 3D structure of a protein, generally through deep learning architectures. Information about the geometry of the protein chain has been proven to be crucial for accurate predictions of 3D structures. However, this information is usually flattened as machine learning features that are not representative of the geometric nature of the problem. Leveraging recent advances in geometric deep learning, we redesign the 3D projector part of a PSP architecture with the addition of CGENN layers . CGENNs can achieve better generalization and robustness when dealing with data that show rotational or translational invariance such as protein coordinates, which are independent of the chosen reference frame. CGENNs inputs, outputs, weights and biases are objects in the Geometric Algebra of 3D Euclidean space, i.e. G3,0,0, and hence are interpretable from a geometrical perspective. We test 6 approaches to PSP and show that CGENN layers increase the accuracy in term of GDT scores by up to 2.1\\%, with fewer trainable parameters compared to linear layers and give a clear geometric interpretation of their outputs.}, language = {en} } @techreport{KybaArroyoDegenetal.2024, author = {Kyba, Christopher C.M. and Arroyo, Hector Linares and Degen, Tobias and Abascal, Angela and Simoneau, Alexandre and Kuffer, Monika and H{\"o}lker, Franz and Aub{\´e}, Martin and Walczak, Ken and Espey, Brian R. and de Miguel, Alejandro S{\´a}nchez and Jechow, Andreas and Gyuk, Geza}, title = {Night Watch Mission Description Document}, publisher = {GFZ German Research Centre for Geosciences}, address = {Potsdam}, doi = {10.48440/gfz.b103-24052}, pages = {1 -- 156}, year = {2024}, abstract = {This is the Mission Description Document (MDD) for a future Earth observation satellite mission addressing visible band observations of nighttime lights. The mission driving science applications are for the remote sensing of electricity, energy, and ecological impacts via the observation of artificial light. The MDD covers the mission requirements justification from the high-level scientific objectives and societal benefits to measurement requirements at product level 1b, i.e. radiances at the top of the atmosphere. In providing justification for the individual requirements and their traceability to scientific objectives and societal challenges, we address Scientific Readiness Levels 1 to 3. The MDD is the outcome of the European Space Agency New Earth Observation Mission Ideas project "Night Watch". The Task Reports (TR) from the project are appended to the MDD, and are authored by the same group as the MDD itself.}, language = {en} } @inproceedings{PepeLasenbyBuchholz2024, author = {Pepe, Alberto and Lasenby, Joan and Buchholz, Sven}, title = {CGAPoseNet+GCAN: A Geometric Clifford Algebra Network for Geometry-aware Camera Pose Regression}, series = {Winter Conference on Applications of Computer Vision, Waikoloa, Hawaii, US, 2024}, booktitle = {Winter Conference on Applications of Computer Vision, Waikoloa, Hawaii, US, 2024}, publisher = {IEEE}, doi = {10.1109/WACV57701.2024.00646}, pages = {6593 -- 6603}, year = {2024}, abstract = {We introduce CGAPoseNet+ GCAN, which enhances CGAPoseNet, an architecture for camera pose regression, with a Geometric Clifford Algebra Network (GCAN). With the addition of the GCAN we obtain a geometry-aware pipeline for camera pose regression from RGB images only. CGAPoseNet employs Clifford Geometric Algebra to unify quaternions and translation vectors into a single mathematical object, the motor, which can be used to uniquely describe camera poses. CGAPoseNet solves the issue of balancing rotation and translation components in the loss function, and can obtain comparable results to other approaches without the need of expensive tuning of the loss function or additional information about the scene, such as 3D point clouds, which might not always be available. CGAPoseNet, however, like several approaches in the literature, only learns to predict motor coefficients, and it is unaware of the mathematical space in which predictions sit in and of their geometrical meaning. By leveraging recent advances in Geometric Deep Learning, we modify CGAPoseNet with a GCAN: proposals of possible motor coefficients associated with a camera frame are obtained from the InceptionV3 backbone, and the GCAN downsamples them to a single motor through a sequence of layers that work in G_ 4, 0. The network is hence geometry-aware, has multivector-valued inputs, weights and biases and preserves the grade of the objects that it receives in input. CGAPoseNet+ GCAN has almost 4 million fewer trainable parameters, it reduces the average rotation error by 41\% and the average translation error by 8.8\% compared to CGAPoseNet. Similarly, it reduces rotation and translation errors by 32.6\% and 19.9\%, respectively, compared to the best performing PoseNet strategy. CGAPoseNet+ GCAN reaches the state-of-the-art results on 13 commonly employed datasets. To the best of our knowledge, it is the first experiment in GCANs applied to the problem of camera pose regression.}, language = {en} } @unpublished{PepeLasenbyBuchholz2024, author = {Pepe, Alberto and Lasenby, Joan and Buchholz, Sven}, title = {STAResNet: A Network in Spacetime Algebra to solve Maxwell's PDEs}, series = {arXiv}, journal = {arXiv}, publisher = {arXiv}, pages = {1 -- 17}, year = {2024}, abstract = {We introduce STAResNet, a ResNet architecture in Spacetime Algebra (STA) to solve Maxwell's partial differential equations (PDEs). Recently, networks in Geometric Algebra (GA) have been demonstrated to be an asset for truly geometric machine learning. In [1], GA networks have been employed for the first time to solve partial differential equations (PDEs), demonstrating an increased accuracy over real-valued networks. In this work we solve Maxwell's PDEs both in GA and STA employing the same ResNet architecture and dataset, to discuss the impact that the choice of the right algebra has on the accuracy of GA networks. Our study on STAResNet shows how the correct geometric embedding in Clifford Networks gives a mean square error (MSE), between ground truth and estimated fields, up to 2.6 times lower than than obtained with a standard Clifford ResNet with 6 times fewer trainable parameters. STAREsNet demonstrates consistently lower MSE and higher correlation regardless of scenario. The scenarios tested are: sampling period of the dataset; presence of obstacles with either seen or unseen configurations; the number of channels in the ResNet architecture; the number of rollout steps; whether the field is in 2D or 3D space. This demonstrates how choosing the right algebra in Clifford networks is a crucial factor for more compact, accurate, descriptive and better generalising pipelines.}, language = {en} }