@incollection{Mueller2020, author = {M{\"u}ller, Regine}, title = {Professionalisation and academisation of social work in the process of transformation: Opening Remarks}, series = {Social glocalisation and education. social work, health sciences and practical theology perspectives on change}, booktitle = {Social glocalisation and education. social work, health sciences and practical theology perspectives on change}, editor = {Hobelsberger, Hans}, publisher = {Verlag Barbara Budrich}, address = {Leverkusen}, isbn = {978-3-8474-1512-1}, pages = {267 -- 269}, year = {2020}, language = {en} } @incollection{Mueller2020, author = {M{\"u}ller, Regine}, title = {Negotiating with social problems. Professionalism in combatting child poverty in Germany}, series = {Social glocalisation and education. social work, health sciences and practical theology perspectives on change}, booktitle = {Social glocalisation and education. social work, health sciences and practical theology perspectives on change}, editor = {Hobelsberger, Hans}, publisher = {Verlag Barbara Budrich}, address = {Leverkusen}, isbn = {978-3-8474-1512-1}, pages = {279 -- 286}, year = {2020}, language = {en} } @inproceedings{GreifAckermannKokabietal.2020, author = {Greif, Jakob and Ackermann, David and Kokabi, Omid and Weinzierl, Stefan}, title = {Kann man die Form eines Konzertsaales h{\"o}ren? Ein audiovisueller Test in simulierten 3D-Umgebungen [Abstract]}, series = {Fortschritte der Akustik - DAGA 2020 - 46. Jahrestagung f{\"u}r Akustik, 16.-19. M{\"a}rz 2020, Hannover}, booktitle = {Fortschritte der Akustik - DAGA 2020 - 46. Jahrestagung f{\"u}r Akustik, 16.-19. M{\"a}rz 2020, Hannover}, publisher = {Deutsche Gesellschaft f{\"u}r Akustik e.V.}, isbn = {978-3-939296-17-1}, pages = {1153 -- 1156}, year = {2020}, language = {en} } @article{AckermannFiedlerBrinkmannetal.2020, author = {Ackermann, David and Fiedler, Felicitas and Brinkmann, Fabian and Schneider, Martin and Weinzierl, Stefan}, title = {On the Acoustic Qualities of Dynamic Pseudo-Binaural Recordings}, series = {Journal of the Audio Engineering Society}, volume = {68}, journal = {Journal of the Audio Engineering Society}, number = {6}, publisher = {Audio-Engineering Society}, issn = {0004-7554}, doi = {10.17743/jaes.2020.0036}, pages = {418 -- 427}, year = {2020}, abstract = {The motion-tracked binaural (MTB) technique allows the dynamic, pseudobinaural rendering of spatial sound scenes recorded by a circular array of microphones on a rigid sphere. The system provides a multichannel live audio transmission from which a head-related signal with approximated interaural time and level differences can be derived and played via headphones, head tracking, and a corresponding rendering software. The latter is mainly calculating imperceptible interpolation between channel pairs during head movements. This contribution evaluates the potential of this format for the creation of virtual acoustic envi- ronments. Based on the technical realization of a 16-channel MTB array with omnidirectional diffuse field-corrected electret condenser microphone capsules, the plausibility of 8 and 16-channel recordings was tested against a physical sound source. Furthermore, the sound quality of the pseudobinaural rendering was assessed based on different items of the Spatial Audio Quality Inventory (SAQI) compared to a true dynamic binaural reference. The results show that the overall plausibility of the MTB signal with optimal interpolation is close to the reference. Even if there are small differences with respect to tone color and spatial sound source attributes, the degree of externalization and even the perceived source elevation were, despite the absence of pinna cues, well comparable to the true binaural reference.}, language = {en} } @article{BoehmAckermannWeinzierl2020, 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}, series = {Journal of the Audio Engineering Society}, volume = {68}, journal = {Journal of the Audio Engineering Society}, number = {12}, publisher = {Audio-Engineering Society}, doi = {10.17743/jaes.2020.0056}, pages = {977 -- 984}, year = {2020}, language = {en} } @incollection{UdrisJandura2020, author = {Udris, Linards and Jandura, Olaf}, title = {Gute Presse, schlechte Presse? Direkte Demokratie und die Rolle der Medien in der Schweiz}, series = {Direkte Demokratie Chancen, Risiken, Herausforderungen}, booktitle = {Direkte Demokratie Chancen, Risiken, Herausforderungen}, editor = {Mitarbeit, Stiftung}, publisher = {Stiftung Mitarbeit}, address = {Bonn}, isbn = {978-3-941143-40-1}, pages = {157 -- 171}, year = {2020}, language = {de} } @incollection{Jandura2020, author = {Jandura, Olaf}, title = {Spagat zwischen Kritisch-Engagierten und Sozialautorit{\"a}ren. Die gesellschaftliche Heterogenit{\"a}t als Herausforderung f{\"u}r den {\"o}ffentlich-rechtlichen Rundfunk.}, series = {Informationsdeprivation \& News-Avoiding. Eine Herausforderung f{\"u}r Demokratie und {\"o}ffentlich-rechtliche Medien}, booktitle = {Informationsdeprivation \& News-Avoiding. Eine Herausforderung f{\"u}r Demokratie und {\"o}ffentlich-rechtliche Medien}, editor = {{\"O}sterreichischer Rundfunk, ORF,}, publisher = {{\"O}sterreichischer Rundfunk, ORF}, address = {Wien}, organization = {ORF}, pages = {48 -- 66}, year = {2020}, language = {en} } @phdthesis{Krieter2020, author = {Krieter, Philipp}, title = {Looking Inside - Mobile Screen Recordings as a Privacy Friendly Long-Term Data Source to Analyze User Behavior}, publisher = {Bremen}, address = {Universit{\"a}t Bremen}, doi = {10.26092/elib/103}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:46-elib43189}, year = {2020}, abstract = {Mobile devices are ubiquitous in many societies and shape the way we interact with technology and each other. Research on how we use and perceive technology is essential to understand its impact. This work advances how we can follow user behavior on mobile devices. We combine the strength of two common data sources for tracking on mobile devices, log files, and screen recordings. Log files are suitable for long-term and privacy-friendly analyzation but provide rather general data (e.g. system log files) unless one has access to the source code of the applications or operating systems. Screen recordings are usually used for short-termed analysis (e.g. usability tests) because the analysis is time-consuming, but they provide all activities on the screen in high detail regardless of which application or operating system. This thesis combines both data sources and presents an approach to automatically generate log files from mobile screen recordings. The approach utilizes methods of computer vision and machine learning to automatically process screen recordings and extend their use. Screen recordings reveal virtually everything a user does with a device, making privacy important, especially in user studies. We present a privacy concept and implementation and show how the risk of exposing private data can be reduced, by processing all recordings locally on the mobile devices and anonymizing the resulting log files. In order to apply the developed method in practice, we carry out a study in the context of education and show how log files of screen recordings can complement and extend existing research in learning analytics. This thesis opens up novel perspectives on how we can look at human-computer interaction with mobile devices. We show how to generate long-term log data with high detail and accuracy from mobile screen recordings, in a privacy-friendly way, locally on mobile devices.}, language = {en} } @incollection{KrieterBreiter2020, author = {Krieter, Philipp and Breiter, Andreas}, title = {Digitale Spuren von Studierenden in virtuellen Lernumgebungen}, series = {Studierende - Medien - Universit{\"a}t: Einblicke in studentische Medienwelt}, booktitle = {Studierende - Medien - Universit{\"a}t: Einblicke in studentische Medienwelt}, editor = {Hofhues, Sandra and Schiefner-Rohs, Mandy and Aßmann, Sandra and Brahm, Taiga}, publisher = {Waxmann}, address = {M{\"u}nster}, isbn = {9783830940494}, doi = {10.31244/9783830990499}, pages = {131 -- 152}, year = {2020}, abstract = {In diesem Beitrag werden die Ergebnisse und der Prozess der LogfileAnalyse im Projekt You(r) Study beschrieben, die zum Ziel hat, die qualitativen Daten des Projekts mit den quantitativen Logdaten eines Learning Management Systems zu verbinden. Mittels deskriptiver Methoden und Clusterbildung werden die Logdaten in Hinblick auf die Fragestellungen des Projekts betrachtet. Außerdem wird kritisch diskutiert, welche Grenzen eine Logfile-Analyse in Bezug zur Zielsetzung hat}, subject = {moodle}, language = {de} } @inproceedings{KrieterViertelBreiter2020, author = {Krieter, Philipp and Viertel, Michael and Breiter, Andreas}, title = {We Know What You Did Last Semester: Learners' Perspectives on Screen Recordings as a Long-Term Data Source for Learning Analytics}, series = {Addressing global challenges and quality education: 15th European Conference on Technology Enhanced Learning, EC-TEL 2020, Heidelberg, Germany, September 14-18, 2020}, volume = {Lecture Notes in Computer Science, vol. 12315}, booktitle = {Addressing global challenges and quality education: 15th European Conference on Technology Enhanced Learning, EC-TEL 2020, Heidelberg, Germany, September 14-18, 2020}, editor = {Alario-Hoyos, Carlos and Rodr{\´i}guez-Triana, Mar{\´i}a Jes{\´u}s and Scheffel, Maren and Arnedillo-S{\´a}nchez, Inmaculada and Dennerlein, Sebastian Maximilian}, publisher = {Springer Nature}, address = {Cham}, isbn = {9783030577162}, issn = {0302-9743}, doi = {10.1007/978-3-030-57717-9_14}, pages = {187 -- 199}, year = {2020}, language = {en} }