TY - JOUR AB - With the present exploration, we aimed to answer the question whether distinct disciplinary cultures are present at today’s universities. To this purpose, we conducted 16 interviews with scholars from different disciplines. Qualitative analysis shows that disciplinary cultures in a narrow, epistemological sense (including forms of knowledge and work as well as organisation of teaching and learning) are perceived as distinct aspects of higher education and deemed important. Disciplinary cultures in a broader sense related to lifestyle and habitus, however, were hardly reported and not perceived as characteristic. Questions of social selectivity or inequality within universities were rarely touched in the interviews. Own cultures are typically described as rather heterogeneous, which is not the case for other cultures. Handling of possible cultures as well as differences by the interviewees turned out to be very cautious, at the same time restrained and respectful. Even where differences are observed or different values are revealed, there is little evidence of disputes. Consequences of these findings for research into disciplinary cultures and higher education are discussed. AU - Scharlau, Ingrid AU - Huber, Ludwig ID - 28986 JF - die hochschullehre KW - disciplinary culture KW - habitus KW - distinctions TI - Welche Rolle spielen Fachkulturen heute? Bericht von einer Erkundungsstudie. VL - 5 ER - TY - CONF AU - Dreiling, Dmitrij AU - Feldmann, Nadine AU - Henning, Bernd ID - 12952 KW - piezoelectric materials KW - piezoelectric properties KW - DC bias field KW - non-linear material parameters TI - A DC bias approach to the characterisation of non-linear material parameters of piezoelectric ceramics ER - TY - THES AB - This thesis deals with the investigation of dynamical properties – in particular generic synchrony breaking bifurcations – that are inherent to the structure of a semigroup network as well the numerous algebraic structures that are related to these types of networks. Most notably we investigate the interplay between network dynamics and monoid representation theory as induced by the fundamental network construction in terms of hidden symmetry as introduced by RINK and SANDERS. After providing a brief survey of the field of network dynamics in Part I, we thoroughly introduce the formalism of semigroup networks, the customized dynamical systems theory, and the necessary background from monoid representation theory in Chapters 3 and 4. The remainder of Part II investigates generic synchrony breaking bifurcations and contains three major results. The first is Theorem 5.11, which shows that generic symmetry breaking steady state bifurcations in monoid equivariant dynamics occur along absolutely indecomposable subrepresentations – a natural generalization of the corresponding statement for group equivariant dynamics. Then Theorem 7.12 relates the decomposition of a representation given by a network with high-dimensional internal phase spaces to that induced by the same network with one-dimensional internal phase spaces. This result is used to show that there is a smallest dimension of internal dynamics in which all generic l-parameter bifurcations of a fundamental network can be observed (Theorem 7.24). In Part III, we employ the machinery that was summarized and further developed in Part II to feedforward networks. We propose a general definition of this structural feature of a network and show that it can equivalently be characterized in different algebraic notions in Theorem 8.35. These are then exploited to fully classify the corresponding monoid representation for any feedforward network and to classify generic synchrony breaking steady state bifurcations with one- or highdimensional internal dynamics. AU - Schwenker, Sören ID - 33265 TI - Genericity in Network Dynamics ER - TY - JOUR AB - Once a popular theme of futuristic science fiction or far-fetched technology forecasts, digital home assistants with a spoken language interface have become a ubiquitous commodity today. This success has been made possible by major advancements in signal processing and machine learning for so-called far-field speech recognition, where the commands are spoken at a distance from the sound capturing device. The challenges encountered are quite unique and different from many other use cases of automatic speech recognition. The purpose of this tutorial article is to describe, in a way amenable to the non-specialist, the key speech processing algorithms that enable reliable fully hands-free speech interaction with digital home assistants. These technologies include multi-channel acoustic echo cancellation, microphone array processing and dereverberation techniques for signal enhancement, reliable wake-up word and end-of-interaction detection, high-quality speech synthesis, as well as sophisticated statistical models for speech and language, learned from large amounts of heterogeneous training data. In all these fields, deep learning has occupied a critical role. AU - Haeb-Umbach, Reinhold AU - Watanabe, Shinji AU - Nakatani, Tomohiro AU - Bacchiani, Michiel AU - Hoffmeister, Bjoern AU - Seltzer, Michael L. AU - Zen, Heiga AU - Souden, Mehrez ID - 15814 IS - 6 JF - IEEE Signal Processing Magazine SN - 1558-0792 TI - Speech Processing for Digital Home Assistance: Combining Signal Processing With Deep-Learning Techniques VL - 36 ER - TY - JOUR AU - Bauer, Anna AU - Lahme, Simon AU - Woitkowski, David AU - Vogelsang, Christoph AU - Reinhold, Peter ID - 24958 JF - PhyDid B – Didaktik der Physik – Beiträge zur DPG-Frühjahrstagung TI - PSΦ: Forschungsprogramm zur Studieneingangsphase im Physikstudium ER - TY - CONF AB - In this paper, we introduce updatable anonymous credential systems (UACS) and use them to construct a new privacy-preserving incentive system. In a UACS, a user holding a credential certifying some attributes can interact with the corresponding issuer to update his attributes. During this, the issuer knows which update function is run, but does not learn the user's previous attributes. Hence the update process preserves anonymity of the user. One example for a class of update functions are additive updates of integer attributes, where the issuer increments an unknown integer attribute value v by some known value k. This kind of update is motivated by an application of UACS to incentive systems. Users in an incentive system can anonymously accumulate points, e.g. in a shop at checkout, and spend them later, e.g. for a discount. AU - Blömer, Johannes AU - Bobolz, Jan AU - Diemert, Denis Pascal AU - Eidens, Fabian ID - 13904 T2 - Proceedings of the 2019 ACM SIGSAC Conference on Computer and Communications Security - CCS '19 TI - Updatable Anonymous Credentials and Applications to Incentive Systems ER - TY - JOUR AU - Stenzel, Nadja AU - Drumm, Sandra ID - 35806 JF - ProDaZ TI - Scaffoldingelemente zur Sprachförderung im Textilunterricht. ER - TY - JOUR AB - Wenn akustische Signalverarbeitung mit automatisiertem Lernen verknüpft wird: Nachrichtentechniker arbeiten mit mehreren Mikrofonen und tiefen neuronalen Netzen an besserer Spracherkennung unter widrigsten Bedingungen. Von solchen Sensornetzwerken könnten langfristig auch digitale Sprachassistenten profitieren. AU - Haeb-Umbach, Reinhold ID - 19450 JF - DFG forschung 1/2019 TI - Lektionen für Alexa & Co?! ER - TY - JOUR AU - Weber, Jutta ID - 36266 JF - Gender, Technik und Politik 4.0 – Über digitalen Kapitalismus, disruptive Technologien und neue Regime der Unsicherheit, special issue of “Gender“ (Hg.: Jutta Weber/Diana Lengersdorf) TI - Vorwort: Gender, Technik und Politik 4.0 – Über digitalen Kapitalismus, disruptive Technologien und neue Regime der Unsicherheit VL - Vol. 11(3/19) ER - TY - JOUR AU - Hagengruber, Ruth ID - 15494 IS - 2019 JF - Konsens KW - Maria von Welser KW - Women KW - Media KW - War KW - Women in War KW - Refugees SN - 09306633 TI - Zur Ehrenpromotion von Maria von Welser an der Fakultät für Kulturwissenschaften der Universität Paderborn VL - 2019 ER -