@article{CarstenMonikaJoergetal.2018, author = {Carsten, St{\"o}hr and Monika, Janssen and J{\"o}rg, Niemann and Benedikt, Reich}, title = {Smart Services}, series = {Procedia - Social and Behavioral Sciences}, volume = {238}, journal = {Procedia - Social and Behavioral Sciences}, edition = {SIM 2017 / 14th International Symposium in Managemen}, publisher = {Elsevier}, issn = {1877-0428}, doi = {10.1016/j.sbspro.2018.03.023}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-59819}, pages = {192 -- 198}, year = {2018}, language = {en} } @inproceedings{BoegeleinBrinkmannAckermannetal.2018, author = {B{\"o}gelein, Silke and Brinkmann, Fabian and Ackermann, David and Weinzierl, Stefan}, title = {Localization Cues of a Spherical Head Model [Abstract]}, series = {Fortschritte der Akustik - DAGA 2018 - 44. Jahrestagung f{\"u}r Akustik 19.-22. M{\"a}rz 2018, M{\"u}nchen}, booktitle = {Fortschritte der Akustik - DAGA 2018 - 44. Jahrestagung f{\"u}r Akustik 19.-22. M{\"a}rz 2018, M{\"u}nchen}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, isbn = {978-3-939296-13-3}, pages = {347 -- 350}, year = {2018}, language = {en} } @misc{BoehmAckermannWeinzierl2018, author = {B{\"o}hm, Christoph and Ackermann, David and Weinzierl, Stefan}, title = {A Multi-channel Anechoic Orchestra Recording of Beethoven's Symphony No. 8 op. 93: Audio Recordings and Accompanying Data}, publisher = {TU Berlin}, address = {Berlin}, doi = {10.14279/depositonce-6729.2}, year = {2018}, abstract = {This data set contains an excerpt of the anechoic recording of the Symphony No. 8 in F Major, Op. 93 by Ludwig van Beethoven, performed by the "Orchester Wiener Akademie" conducted by Martin Haselb{\"o}ck. It was recorded in the anechoic chamber of the TU Berlin.}, language = {en} } @article{WeinzierlLepaAckermann2018, author = {Weinzierl, Stefan and Lepa, Steffen and Ackermann, David}, title = {A measuring instrument for the auditory perception of rooms: The Room Acoustical Quality Inventory (RAQI)}, series = {The Journal of the Acoustical Society of America}, volume = {144}, journal = {The Journal of the Acoustical Society of America}, number = {3}, publisher = {Acoustical Society of America}, issn = {0001-4966}, doi = {10.1121/1.5051453}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-58954}, pages = {1245 -- 1257}, year = {2018}, abstract = {With the Room Acoustical Quality Inventory (RAQI), a measuring instrument for the perceptual space of performance venues for music and speech has been developed. First, a focus group with room acoustical experts determined relevant aspects of room acoustical impression in the form of a comprehensive list of 50 uni- and bipolar items in different categories. Then, n = 190 subjects rated their acoustical impression of 35 binaurally simulated rooms from 2 listening positions, with symphonic orchestra, solo trumpet, and dramatic speech as audio content. Subsequent explorative and confirmative factor analyses of the questionnaire data resulted in three possible solutions with four, six, and nine factors of room acoustical impression. The factor solutions, as well as the related RAQI items, were tested in terms of reliability, validity, and several types of measurement invariance, and were cross-validated by a follow-up experiment with a subsample of 46\% of the original participants, which provided re-test reliabilities and stability coefficients for all RAQI constructs. The resulting psychometrically evaluated measurement instrument can be used for room quality assessment, acoustical planning, and the further development of room acoustical parameters in order to predict primary acoustical qualities of venues for music and speech.}, language = {en} } @misc{AckermannIlseGrigorievetal.2018, author = {Ackermann, David and Ilse, Michael and Grigoriev, Dmitry and Lepa, Steffen and Pelzer, S{\"o}nke and Vorl{\"a}nder, Michael and Weinzierl, Stefan}, title = {A Ground Truth on Room Acoustical Analysis and Perception (GRAP)}, publisher = {TU Berlin}, address = {Berlin}, doi = {10.14279/depositonce-7003.4}, year = {2018}, abstract = {A database of 35 virtual room models was created that can serve as a ground truth for the future development of room acoustical parameters beyond ISO 3382-1. Some of the room models are based on existing performance venues, however without yielding a perfect match of measured and simulated acoustical parameters. Others are artificial designs which were made to systematically cover a wide variety of room acoustical properties. Each of the 35 acoustical environments included in the GRAP database consists of three components: (1) the room model which specifies source and receiver positions and the acoustic properties of the surfaces, (2) the simulated monaural and binaural impulse responses, as well as (3) the item and factor scores, based on a listening test using the Room Acoustic Quality Inventory (RAQI).}, language = {en} } @misc{AckermannBoehmWeinzierl2018, author = {Ackermann, David and B{\"o}hm, Christoph and Weinzierl, Stefan}, title = {A Database on Musicians' Movements During Musical Performances}, publisher = {TU Berlin}, doi = {10.14279/depositonce-7469}, year = {2018}, abstract = {The movements of 20 musicians playing 11 different musical instruments, including all standard orchestral instruments, were captured during solo performances by means of a motion capturing system under concert-like conditions.}, language = {en} } @inproceedings{KrieterBreiter2018, author = {Krieter, Philipp and Breiter, Andreas}, title = {Track every move of your students: log files for Learning Analytics from mobile screen recordings}, series = {DeLFI 2018: die 16. E-Learning Fachtagung Informatik der Gesellschaft f{\"u}r Informatik e.V., 10.-12. September 2018, Frankfurt am Main, Deutschland}, volume = {Lecture Notes in Informatics(LNI)-Proceedings, Vol. P-284}, booktitle = {DeLFI 2018: die 16. E-Learning Fachtagung Informatik der Gesellschaft f{\"u}r Informatik e.V., 10.-12. September 2018, Frankfurt am Main, Deutschland}, editor = {Kr{\"o}mker, Detlef and Schroeder, Ulrik}, publisher = {K{\"o}llen Druck+Verlag}, address = {Bonn}, organization = {Gesellschaft f{\"u}r Informatik, Bonn}, isbn = {9783885796787}, doi = {10.18154/RWTH-2018-229913}, pages = {231 -- 242}, year = {2018}, abstract = {One of the main data sources for Learning Analytics are Learning Management Systems (LMS).These log files are limited though to interactions within the LMS and cannot take into account interactions of students in other applications and software in a digital learning environment. In this paper, we present an approach for generating log files based on mobile screen recordings as a data source for Learning Analytics. Logging mobile application usage is limited to rather general system events unless you have access to the source code of the operating system or applications.To address this we generate log files from mobile screen recordings by applying computer vision and machine learning methods to detect individually defined events. In closing, we discuss how these log files can be used as a data source for Learning Analytics and relevant ethical concerns.}, language = {en} } @inproceedings{KrieterBreiter2018, author = {Krieter, Philipp and Breiter, Andreas}, title = {Analyzing mobile application usage: generating log files from mobile screen recordings}, series = {Proceedings of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services, Barcelona Spain, September 3 - 6, 2018}, booktitle = {Proceedings of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services, Barcelona Spain, September 3 - 6, 2018}, editor = {Balie, Lynne and Oliver, Nuria}, publisher = {ACM}, address = {New York}, isbn = {978-1-4503-5898-9}, doi = {10.1145/3229434.3229450}, pages = {1 -- 10}, year = {2018}, language = {en} } @inproceedings{WeberKramerFischeretal.2018, author = {Weber, Konradin and Kramer, Tim and Fischer, Christian and Pohl, Tobias and Schulenberg, Malte and Heweling, Georg and B{\"o}hlke, Christoph}, title = {Testing and evaluation of low-cost sensors for fine particulate matter PM10 and PM2.5}, series = {Geophysical Research Abstracts: EGU General Assembly 2018}, volume = {20}, booktitle = {Geophysical Research Abstracts: EGU General Assembly 2018}, publisher = {Copernicus}, address = {G{\"o}ttingen}, year = {2018}, abstract = {It is well known from medical studies that fine particulate matter has adverse effects to human health. However, exceeding of limit values for fine particulate matter PM10 and PM2.5 is still a problem in major German cities. Therefore, fine particulate matter is monitored in Germany by environmental state agencies at fixed stations with certified instruments. These certified instruments are able to deliver reliable and high quality results. However, because of the costs of these certified instruments and the maintenance efforts, only few measurements stations are placed in the cities at places, which are regarded as representative for the air pollution. On the other hand, it is of interest to know the concentration of fine particulate matter in areas and at places, which are not covered by the fixed measurement stations of the environmental state agencies. In this situation citizen science projects started in Germany using low cost sensors for fine particulate matter. In principle, with these low cost sensors citizens could measure fine particulate matter at places and in situations of their interests. However, at that point the question of reliability of the low cost sensor data arises. Therefore the Duesseldorf University of Applied Sciences (HSD) in Germany started a project for the testing and evaluation of low-cost sensors. For this reason 20 low-cost sensor units have been built up based on the SDS 011 sensor of Nova Fitness Inc. within the Laboratory for Environmental Measurement Techniques at HSD. The sensor measurement data can be transferred into a network and can be visualized on a digital map. This testing and evaluation at HSD of the low-cost sensors comprised: • Short term and long term comparison studies within the laboratory and at different urban sites with a certifiedwide range aerosol measurement system (Grimm WRAS). • Short term and long term comparison studies within the laboratory and at different urban sites with mid-cost sensors (Alphasense AN2). • Intercomparison testing and evaluation of sensors of the same production charge. • Intercomparison testing and evaluation of sensors of different production charges. • Testing and evaluation of the sensors at different meteorological conditions. The results of this testing and evaluation will be presented at the conference. Moreover, the potential of additional applications for low-cost sensors, e.g. for mobile measurements (multicopter UAS, bicycles, pedestrians) or for the validation of air pollution models, will be discussed}, subject = {Messtechnik}, language = {en} } @inproceedings{MaasHoefertSchaeferetal.2018, author = {Maas, Peter and H{\"o}fert, Norbert and Sch{\"a}fer, Klaus and Weber, Konradin and Richter, Andreas}, title = {Standards VDI 4211 and VDI 4212 on passive FTIR and DOAS remote sensing techniques}, series = {Proceedings Volume 10786, Remote Sensing of Clouds and the Atmosphere XXIII; 107860W (2018)}, booktitle = {Proceedings Volume 10786, Remote Sensing of Clouds and the Atmosphere XXIII; 107860W (2018)}, editor = {Comer{\´o}n, Adolfo and Kassianov, Evgueni I. and Sch{\"a}fer, Klaus and Picard, Richard H. and Weber, Konradin}, publisher = {SPIE}, doi = {10.1117/12.2325145}, year = {2018}, language = {en} }