TY - GEN A1 - Schöberl, Florian A1 - Pradhan, Cauchy A1 - Irving, Stephanie A1 - Buerger, Katharina A1 - Xiong, Guoming A1 - Kugler, Günter A1 - Kohlbecher, Stefan A1 - Engmann, Julia A1 - Werner, Philipp A1 - Brendel, Matthias A1 - Schneider, Erich A1 - Perneczky, Robert A1 - Jahn, Klaus A1 - Fougère, Christian la A1 - Bartenstein, Peter A1 - Brandt, Thomas A1 - Dietrich, Marianne A1 - Zwergal, Andreas T1 - Real-space navigation testing differentiates between amyloid-positive and -negative aMCI T2 - Neurology : official journal of the American Academy of Neurology Y1 - 2020 UR - https://n.neurology.org/content/94/8/e861 U6 - https://doi.org/10.1212/WNL.0000000000008758 SN - 1526-632X VL - 94 IS - 8 SP - e861 EP - e873 ER - TY - GEN A1 - Werner, Jens Martin A1 - Zidek, Martin A1 - Kammerer, Sylvia A1 - Platz Batista da Silva, Natascha A1 - Jung, Friedrich A1 - Schlitt, Hans Jürgen A1 - Hornung, Matthias A1 - Jung, Ernst Michael T1 - Intraoperative contrast-enhanced ultrasound can have a crucial role in surgical decision-making during hepato-pancreatico-biliary surgery –Analysis of impact and input T2 - Clinical Hemorheology and Microcirculation N2 - OBJECTIVE: To assess the impact and procedural input of intraoperative ultrasound (IOUS) with contrast-enhanced ultrasound (CEUS) and ultrasound elastography on surgical decision making during the procedure and consequently the out-come after hepato-pancreatico-biliary (HPB) surgery. MATERIALS AND METHODS: Data of 50 consecutive patients, who underwent HPB surgery from 04/2018 to 07/2018 were prospectively collected for this study. During surgery, IOUS with a high-resolution ultrasound device using CEUS after bolus injection of 2.4–5 ml Sulphur hexafluoride microbubbles using a 6–9 MHz probe and a share wave and strain elastography was performed by an experienced examiner. Process and time analysis were carried out using mobile phone timer. RESULTS: The IOUS with CEUS and elastography correctly identified 42 malignant tumors and 4 benign lesions. In 3 cases, the examination provided false positive result (identifying 3 benign lesions as malignant) and in 1 case a malignant lesion was incorrectly assessed as benign (sensitivity 97,7%, specificity 57,1%, PPV 93,3% and NPV 80%). The specific question by the surgeon could be answered successfully in 98% of the cases. In 76% of the cases, there was a modification (42%) or a fundamental change (34%) of the planned surgical approach due to the information provided by the IOUS. Within the last group, the IOUS had a major impact on therapy outcome. In 7 patients an additional tumor resection was required, in 5 patients the tumor was assessed as inoperable, and in total in 5 patients an intraoperative RFA (4/5) or postoperative RITA (1/5) was required. Regarding procedural input, there was only a slight, but significant difference between the transport and set-up times before the intraoperative use (mean: 14 min 22 s) and the return transport (mean 13 min 6 s), (p = 0,038). The average examination time was 14 minutes, which makes only one third of the overall time demand. CONCLUSION: Combination of IOUS with CEUS and elastography in oncological HPB surgery provides valuable information that affects surgical decision-making. The procedural input of about 45 minutes seems to be a good investment considering the improvement of the surgical procedure and a significant modification of the therapy approach in the majority of the cases. KW - Surgical decision-making KW - hepato-pancreatico-biliary surgery KW - CEUS KW - elastography Y1 - 2021 UR - https://content.iospress.com/articles/clinical-hemorheology-and-microcirculation/ch201031 U6 - https://doi.org/10.3233/CH-201031 VL - 78 IS - 1 SP - 1 EP - 14 ER - TY - GEN A1 - Meyer, Werner A1 - Borislavov, Borislav A1 - Eckert, Friedrich A1 - Richter, Christian A1 - Römer, Ronald A1 - Beim Graben, Peter A1 - Huber, Markus A1 - Wolff, Matthias ED - Hillmann, Stefan ED - Weiss, Benjamin ED - Michael, Thilo ED - Möller, Sebastian T1 - Formalisierung und Implementierung einer adaptiven kognitiven Architektur unter Verwendung von Strukturdiagrammen T2 - Elektronische Sprachsignalverarbeitung 2021 : Tagungsband der 32. Konferenz Berlin, 3.-5. März 2021 N2 - Das Fachgebiet der Kognitiven Technischen Systeme zeichnet sich durch einen hohen Grad an Interdisziplinarität (z. B. Kenntnisse auf den Gebieten Biologie, Psychologie, Informatik und den Ingenieurwissenschaften) aus. Nach wie vor besteht Bedarf an einer methodischen Darstellung des Fachgebietes, bei der die theoretische Durchdringung von Zusammenhängen zwischen den verschiedenen Wissensgebieten zusätzlich durch Anschaulichkeit unterstützt wird. Die vorliegende Arbeit stellt einen Fortschrittsbericht zur Realisierung eines Forschungs- und Experimentiersystems dar, mit dem wir dieses Anliegen unterstützen und über das wir erstmals konzeptionell in [1] berichtet haben. In diesem Beitrag folgen wir einem integrativen Ansatz zur Entwicklung einer kognitiven Architektur, mit der unter Verwendung repräsentationaler Datenstrukturen adaptives Verhalten auf verschiedenen Zeitskalen sowie zwei wichtige Verhaltensprogramme für das Problemlösen (Objektfindung, Exploration) auf der gemeinsamen Grundlage von Markov-Entscheidungsprozessen umgesetzt werden. Mit einem Kurzbericht zum Entwicklungsstand der physikalischen Experimentierumgebung und einer Zusammenfassung der bislang erreichten Ergebnisse beschließen wir den diesjährigen Beitrag. Y1 - 2021 UR - https://www.essv.de/?year=2021 SN - 978-3-959082-27-3 SN - 0940-6832 SP - 67 EP - 76 PB - TUDpress CY - Dresden ER - TY - GEN A1 - Beim Graben, Peter A1 - Huber, Markus A1 - Meyer, Werner A1 - Römer, Ronald A1 - Wolff, Matthias T1 - Vector Symbolic Architectures for Context-Free Grammars T2 - Cognitive Computation N2 - Vector symbolic architectures (VSA) are a viable approach for the hyperdimensional representation of symbolic data, such as documents, syntactic structures, or semantic frames. We present a rigorous mathematical framework for the representation of phrase structure trees and parse trees of context-free grammars (CFG) in Fock space, i.e. infinite-dimensional Hilbert space as being used in quantum field theory. We define a novel normal form for CFG by means of term algebras. Using a recently developed software toolbox, called FockBox, we construct Fock space representations for the trees built up by a CFG left-corner (LC) parser. We prove a universal representation theorem for CFG term algebras in Fock space and illustrate our findings through a low-dimensional principal component projection of the LC parser state. Our approach could leverage the development of VSA for explainable artificial intelligence (XAI) by means of hyperdimensional deep neural computation. Y1 - 2021 U6 - https://doi.org/10.1007/s12559-021-09974-y SN - 1866-9964 VL - 14 IS - 2 SP - 733 EP - 748 ER - TY - GEN A1 - Karnapke, Reinhardt A1 - Richter, Martin A1 - Werner, Matthias T1 - Virtualization in robot swarms: past, present, and future T2 - 2024 IEEE 21st Consumer Communications & Networking Conference (CCNC) N2 - Robot swarms have come a long way since the first mobile sensor/actuator networks. Since then, we have seen the rise of operating systems for robots and swarm operating systems that ease the use of robots, and especially of large swarms of them, a lot. Still, the description of a task is often not easy and best done by experts. In this paper we envision future swarm operating systems, where task descriptions take a form which can be realized by non-experts. We describe our idea of hugely increased virtualization in the swarm and how this can be used to realize the aforementioned vision. KW - Actuators KW - Runtime KW - Operating Systems KW - Soft Sensors KW - Robot Sensing Systems KW - User Experience KW - Planning KW - Virtualization KW - Heterogeneity KW - Swarm Robotics KW - Transparency KW - Motion Y1 - 2024 SN - 979-8-3503-0457-2 U6 - https://doi.org/10.1109/CCNC51664.2024.10454838 SP - 1 EP - 6 PB - IEEE ER - TY - CHAP A1 - Mießner, Michael A1 - Naumann, Matthias A1 - Grabski-Kieron, Ulrike A1 - Steinführer, Annett A1 - Nell, Werner A1 - Weiland, Marc T1 - Utopien ländlicher Entwicklung : Anregungen aus der Forschung und Herausforderungen für die Praxis T2 - Ländliche Utopien : Herausforderungen und Alternativen regionaler Entwicklungen Y1 - 2024 SN - 978-3-8394-7233-0 U6 - https://doi.org/10.14361/9783839472330 SP - 9 EP - 13 PB - Transcript Verlag CY - Bielefeld ER - TY - GEN A1 - Rotta, Randolf A1 - Chatharajupalli, Navya Sneha A1 - Naumann, Billy A1 - Schulz, Julius A1 - Karnapke, Reinhardt A1 - Werner, Matthias A1 - Nolte, Jörg T1 - Demo: B.A.T.M.A.N. mesh routing on ultra low-power IEEE 802.11 modules T2 - 2024 IEEE 49th Conference on Local Computer Networks (LCN) N2 - When implementing multi-hop mesh network protocols, efficient direct communication, route discovery, and route repair are crucial to achieve high network throughput. To our knowledge, there is no open mesh routing protocol available for ultra low power IEEE 802.11 modules. Previous work relied on single board computers like Raspberry Pi. We implemented the B.A.T.M.A.N. mesh protocol on the popular Espressif ESP32 along with a novel hybrid rate adaptation for the selection of efficient routes. In this demo we showcase challenges and solutions related to the implementation on ESP32 and how the hybrid rate adaptation improves end-to-end throughput. KW - ad-hoc networks KW - mesh networks KW - low power electronics KW - throughput Y1 - 2024 SN - 979-8-3503-8800-8 U6 - https://doi.org/10.1109/LCN60385.2024.10639789 SN - 2832-1421 PB - IEEE ER - TY - GEN A1 - Rotta, Randolf A1 - Schulz, Julius A1 - Naumann, Billy A1 - Chatharajupalli, Navya Sneha A1 - Nolte, Jörg A1 - Werner, Matthias T1 - B.A.T.M.A.N. Mesh Networking on ESP32’s 802.11 T2 - 2024 IEEE 49th Conference on Local Computer Networks (LCN) N2 - Mesh routing protocols are widely used in IoT and sensor networks. In recent years, the ESP32 Wi-Fi/BLE SoC became popular for prototyping IoT applications. However, the existing mesh networks for this platform lack efficient node to node communication, fast route discovery and repair, and energy efficiency. This paper addresses the formation of IEEE 802.11 based ad-hoc mesh networks without the delays inflicted by the Station to Access Point association protocol. We implemented the B.A.T.M.A.N. protocol on top of the ESP32 Wi-Fi MAC interface and integrated it into the LwIP network stack. The performance evaluation with respect to UDP/IP and TCP/IP end-to-end throughput shows the general usefulness but also identifies bottlenecks caused by limitations of the existing MAC interface. Overall, this opens an interesting opportunity for research on mesh protocols by providing a simpler platform than full featured Wi-Fi routers; and for wireless IoT applications by providing higher throughput than subGHz and BLE technologies. KW - wireless communication KW - mesh networks KW - wireless sensor networks KW - routing protocols Y1 - 2024 SN - 979-8-3503-8800-8 U6 - https://doi.org/10.1109/LCN60385.2024.10639698 SN - 2832-1421 SN - 2831-7742 SP - 1 EP - 7 PB - IEEE ER - TY - GEN A1 - Huber, Christoph A1 - Dreber, Anna A1 - Huber, Jürgen A1 - Johannesson, Magnus A1 - Kirchler, Michael A1 - Weitzel, Utz A1 - Abellán, Miguel A1 - Adayeva, Xeniya A1 - Ay, Fehime Ceren A1 - Barron, Kai A1 - Berry, Zachariah A1 - Bönte, Werner A1 - Brütt, Katharina A1 - Bulutay, Muhammed A1 - Campos-Mercade, Pol A1 - Cardella, Eric A1 - Claassen, Maria Almudena A1 - Cornelissen, Gert A1 - Dawson, Ian G. J. A1 - Delnoij, Joyce A1 - Demiral, Elif E. A1 - Dimant, Eugen A1 - Doerflinger, Johannes Theodor A1 - Dold, Malte A1 - Emery, Cécile A1 - Fiala, Lenka A1 - Fiedler, Susann A1 - Freddi, Eleonora A1 - Fries, Tilman A1 - Gasiorowska, Agata A1 - Glogowsky, Ulrich A1 - Gorny, Paul Matthias A1 - Gretton, Jeremy David A1 - Grohmann, Antonia A1 - Hafenbrädl, Sebastian A1 - Handgraaf, Michel A1 - Hanoch, Yaniv A1 - Hart, Einav A1 - Hennig, Max A1 - Hudja, Stanton A1 - Hütter, Mandy A1 - Hyndman, Kyle A1 - Ioannidis, Konstantinos A1 - Isler, Ozan A1 - Jeworrek, Sabrina A1 - Jolles, Daniel A1 - Juanchich, Marie A1 - Raghabendra, Pratap K.C. A1 - Khadjavi, Menusch A1 - Kugler, Tamar A1 - Li, Shuwen A1 - Lucas, Brian A1 - Mak, Vincent A1 - Mechtel, Mario A1 - Merkle, Christoph A1 - Meyers, Ethan Andrew A1 - Mollerstrom, Johanna A1 - Nesterov, Alexander A1 - Neyse, Levent A1 - Nieken, Petra A1 - Nussberger, Anne-Marie A1 - Palumbo, Helena A1 - Peters, Kim A1 - Pirrone, Angelo A1 - Qin, Xiangdong A1 - Rahal, Rima Maria A1 - Rau, Holger A1 - Rincke, Johannes A1 - Ronzani, Piero A1 - Roth, Yefim A1 - Saral, Ali Seyhun A1 - Schmitz, Jan A1 - Schneider, Florian A1 - Schram, Arthur A1 - Schudy, Simeon A1 - Schweitzer, Maurice E. A1 - Schwieren, Christiane A1 - Scopelliti, Irene A1 - Sirota, Miroslav A1 - Sonnemans, Joep A1 - Soraperra, Ivan A1 - Spantig, Lisa A1 - Steimanis, Ivo A1 - Steinmetz, Janina A1 - Suetens, Sigrid A1 - Theodoropoulou, Andriana A1 - Urbig, Diemo A1 - Vorlaufer, Tobias A1 - Waibel, Joschka A1 - Woods, Daniel A1 - Yakobi, Ofir A1 - Yilmaz, Onurcan A1 - Zaleskiewicz, Tomasz A1 - Zeisberger, Stefan A1 - Holzmeister, Felix T1 - Competition and moral behavior: A meta-analysis of forty-five crowd-sourced experimental designs T2 - Proceedings of the National Academy of Sciences N2 - Does competition affect moral behavior? This fundamental question has been debated among leading scholars for centuries, and more recently, it has been tested in experimental studies yielding a body of rather inconclusive empirical evidence. A potential source of ambivalent empirical results on the same hypothesis is design heterogeneity—variation in true effect sizes across various reasonable experimental research protocols. To provide further evidence on whether competition affects moral behavior and to examine whether the generalizability of a single experimental study is jeopardized by design heterogeneity, we invited independent research teams to contribute experimental designs to a crowd-sourced project. In a large-scale online data collection, 18,123 experimental participants were randomly allocated to 45 randomly selected experimental designs out of 95 submitted designs. We find a small adverse effect of competition on moral behavior in a meta-analysis of the pooled data. The crowd-sourced design of our study allows for a clean identification and estimation of the variation in effect sizes above and beyond what could be expected due to sampling variance. We find substantial design heterogeneity—estimated to be about 1.6 times as large as the average standard error of effect size estimates of the 45 research designs—indicating that the informativeness and generalizability of results based on a single experimental design are limited. Drawing strong conclusions about the underlying hypotheses in the presence of substantive design heterogeneity requires moving toward much larger data collections on various experimental designs testing the same hypothesis. Y1 - 2023 U6 - https://doi.org/10.1073/pnas.2215572120 SN - 0027-8424 SN - 1091-6490 VL - 120 IS - 23 ER - TY - GEN A1 - Richter, Martin A1 - Karnapke, Reinhardt A1 - Werner, Matthias T1 - Utilizing sensor and actuator virtualization to achieve a systemic view of mobile heterogeneous cyber-physical systems T2 - Proceedings of the 14th International Conference on Simulation and Modeling Methodologies, Technologies and Applications N2 - When programming cyber-physical systems, application developers currently utilize physical sensors and actuators individually to achieve the desired observations and impacts within the physical world. This is an error-prone and complex task given the size, heterogeneity, and mobility of prevailing cyber-physical systems. We introduce an application model that allows the application developers to take a physical perspective. By means of this model, the programmers describe desired observations and influences with respect to the physical world without directly referencing physical devices. We present an additional model for a runtime environment that transparently utilizes the available physical devices to reach the application developers’ targets. We show that an implementation of our models is functional via simulation. KW - Cyber-Physical Systems KW - Virtualization KW - Mobility KW - Heterogeneity KW - Transparency Y1 - 2024 SN - 978-989-758-708-5 U6 - https://doi.org/10.5220/0012715800003758 SP - 207 EP - 214 PB - SCITEPRESS - Science and Technology Publications ER - TY - CHAP A1 - Tschöpe, Constanze A1 - Duckhorn, Frank A1 - Huber, Markus A1 - Meyer, Werner A1 - Wolff, Matthias ED - Karpov, Alexey ED - Jokisch, Oliver ED - Potapova, Rodmonga T1 - A Cognitive User Interface for a Multi-Modal Human-Machine Interaction T2 - Speech and computer : 20th International Conference, SPECOM 2018, Leipzig, Germany, September 18-22, 2018, proceedings Y1 - 2018 UR - https://link.springer.com/chapter/10.1007/978-3-319-99579-3_72 SN - 978-3-319-99578-6 U6 - https://doi.org/10.1007/978-3-319-99579-3 SP - 707 EP - 717 PB - Springer International Publishing CY - Cham ER - TY - GEN A1 - Duckhorn, Frank A1 - Huber, Markus A1 - Meyer, Werner A1 - Jokisch, Oliver A1 - Tschöpe, Constanze A1 - Wolff, Matthias ED - Lacerda, Francisco T1 - Towards an Autarkic Embedded Cognitive User Interface T2 - Proceedings Interspeech 2017, 20-24 August 2017, Stockholm N2 - ucuikt2015 Y1 - 2017 UR - http://www.isca-speech.org/archive/Interspeech_2017/ U6 - https://doi.org/10.21437/Interspeech.2017 SP - 3435 EP - 3436 PB - ISCA ER -