@article{37021, author = {{Chiapello, Eve and Knoll, Lisa}}, issn = {{1387-6988}}, journal = {{Journal of Comparative Policy Analysis: Research and Practice}}, keywords = {{Public Administration, Sociology and Political Science}}, number = {{2}}, pages = {{100--115}}, publisher = {{Informa UK Limited}}, title = {{{The Welfare Conventions Approach: A Comparative Perspective on Social Impact Bonds}}}, doi = {{10.1080/13876988.2019.1695965}}, volume = {{22}}, year = {{2020}}, } @article{37023, author = {{Chiapello, Eve and Knoll, Lisa}}, journal = {{Historical Social Research}}, number = {{3}}, pages = {{7--30}}, title = {{{Social Finance and Impact Investing: Governing Welfare in the Era of Financialization}}}, volume = {{45}}, year = {{2020}}, } @book{47618, editor = {{Althoff, Sebastian and Linseisen, Elisa and Müller, Maja-Lisa and Winter, Franziska}}, isbn = {{978-3-7705-6495-8}}, publisher = {{Wilhelm Fink}}, title = {{{Re/Dissolving Mimesis}}}, year = {{2020}}, } @inbook{47623, author = {{Althoff, Sebastian}}, booktitle = {{Re/Dissolving Mimesis}}, editor = {{Linseisen, Elisa and Müller, Maja-Lisa and Winter, Franziska}}, publisher = {{Wilhelm Fink}}, title = {{{A CCTV Image that Dissolves like Smeared Data: Distinguishability versus Similarity}}}, doi = {{10.30965/9783846764954_012}}, year = {{2020}}, } @inbook{47622, author = {{Althoff, Sebastian and Linseisen, Elisa and Müller, Maja-Lisa and Winter, Franziska}}, booktitle = {{Re/Dissolving Mimesis}}, editor = {{Linseisen, Elisa and Müller, Maja-Lisa and Winter, Franziska}}, publisher = {{Wilhelm Fink}}, title = {{{Editorial: Re/Dissolving Mimesis}}}, doi = {{10.30965/9783846764954_004}}, year = {{2020}}, } @article{47624, author = {{Althoff, Sebastian}}, journal = {{Performance Research}}, number = {{7}}, pages = {{92--98}}, title = {{{Seeping Out: The diminishment of the subject in Hito Steyerl’s How Not to Be Seen}}}, doi = {{10.1080/13528165.2019.1717871}}, volume = {{24}}, year = {{2020}}, } @inproceedings{13226, abstract = {{The canonical problem for the class Quantum Merlin-Arthur (QMA) is that of estimating ground state energies of local Hamiltonians. Perhaps surprisingly, [Ambainis, CCC 2014] showed that the related, but arguably more natural, problem of simulating local measurements on ground states of local Hamiltonians (APX-SIM) is likely harder than QMA. Indeed, [Ambainis, CCC 2014] showed that APX-SIM is P^QMA[log]-complete, for P^QMA[log] the class of languages decidable by a P machine making a logarithmic number of adaptive queries to a QMA oracle. In this work, we show that APX-SIM is P^QMA[log]-complete even when restricted to more physical Hamiltonians, obtaining as intermediate steps a variety of related complexity-theoretic results. We first give a sequence of results which together yield P^QMA[log]-hardness for APX-SIM on well-motivated Hamiltonians: (1) We show that for NP, StoqMA, and QMA oracles, a logarithmic number of adaptive queries is equivalent to polynomially many parallel queries. These equalities simplify the proofs of our subsequent results. (2) Next, we show that the hardness of APX-SIM is preserved under Hamiltonian simulations (a la [Cubitt, Montanaro, Piddock, 2017]). As a byproduct, we obtain a full complexity classification of APX-SIM, showing it is complete for P, P^||NP, P^||StoqMA, or P^||QMA depending on the Hamiltonians employed. (3) Leveraging the above, we show that APX-SIM is P^QMA[log]-complete for any family of Hamiltonians which can efficiently simulate spatially sparse Hamiltonians, including physically motivated models such as the 2D Heisenberg model. Our second focus considers 1D systems: We show that APX-SIM remains P^QMA[log]-complete even for local Hamiltonians on a 1D line of 8-dimensional qudits. This uses a number of ideas from above, along with replacing the "query Hamiltonian" of [Ambainis, CCC 2014] with a new "sifter" construction.}}, author = {{Gharibian, Sevag and Piddock, Stephen and Yirka, Justin}}, booktitle = {{Proceedings of the 37th Symposium on Theoretical Aspects of Computer Science (STACS 2020)}}, pages = {{38}}, title = {{{Oracle complexity classes and local measurements on physical Hamiltonians}}}, year = {{2020}}, } @article{22056, author = {{Spychala, K. J. and Mackwitz, P. and Rüsing, Michael and Widhalm, A. and Berth, Gerhard and Silberhorn, Christine and Zrenner, Artur}}, issn = {{0021-8979}}, journal = {{Journal of Applied Physics}}, title = {{{Nonlinear focal mapping of ferroelectric domain walls in LiNbO3: Analysis of the SHG microscopy contrast mechanism}}}, doi = {{10.1063/5.0025284}}, year = {{2020}}, } @article{25920, author = {{Padberg, Laura and Santandrea, Matteo and Rüsing, Michael and Brockmeier, Julian and Mackwitz, Peter and Berth, Gerhard and Zrenner, Artur and Eigner, Christof and Silberhorn, Christine}}, issn = {{1094-4087}}, journal = {{Optics Express}}, title = {{{Characterisation of width-dependent diffusion dynamics in rubidium-exchanged KTP waveguides}}}, doi = {{10.1364/oe.397074}}, year = {{2020}}, } @article{47956, abstract = {{Optically nonlinear Pb2B5O9X (X = Cl, Br) borate halides are an important group of materials for second harmonic generation (SHG). Additionally, they also possess excellent photocatalytic activity and stability in the process of dechlorination of chlorophenols, which are typical persistent organic pollutants. It would be of great interest to conduct in situ (photo‐) catalysis investigations during the whole photocatalytic process by SHG when considering them as photocatalytic materials. In order to get superior photocatalytic efficiency and maximum surface information, small particles are highly desired. Here, a low‐cost and fast synthesis route that allows growing microcrystalline optically nonlinear Pb2B5O9X borate halides at large quantities is introduced. When applying the ionothermal growth process at temperatures between 130 and 170 °C, microcrystallites with an average size of about 1 µm precipitate with an orthorhombic hilgardite‐like borate halide structure. Thorough examinations using powder X‐ray diffraction and scanning electron microscopy, the Pb2B5O9X microcrystals are indicated to be chemically pure and single‐phased. Besides, the Pb2B5O9X borate halides' SHG efficiencies are confirmed using confocal SHG microscopy. The low‐temperature synthesis route thus makes these borate halides a highly desirable material for surface studies such as monitoring chemical reactions with picosecond time resolution and in situ (photo‐) catalysis investigations.}}, author = {{Tan, Deming and Kirbus, Benjamin and Rüsing, Michael and Pietsch, Tobias and Ruck, Michael and Eng, Lukas M.}}, issn = {{1613-6810}}, journal = {{Small}}, keywords = {{Biomaterials, Biotechnology, General Materials Science, General Chemistry}}, number = {{23}}, publisher = {{Wiley}}, title = {{{Resource‐Efficient Low‐Temperature Synthesis of Microcrystalline Pb2B5O9X (X = Cl, Br) for Surfaces Studies by Optical Second Harmonic Generation}}}, doi = {{10.1002/smll.202000857}}, volume = {{16}}, year = {{2020}}, } @article{47958, abstract = {{High-fidelity periodic poling over long lengths is required for robust, quasi-phase-matched second-harmonic generation using the fundamental, quasi-TE polarized waveguide modes in a thin-film lithium niobate (TFLN) waveguide. Here, a shallow-etched ridge waveguide is fabricated in x-cut magnesium oxide doped TFLN and is poled accurately over 5 mm. The high fidelity of the poling is demonstrated over long lengths using a non-destructive technique of confocal scanning second-harmonic microscopy. We report a second-harmonic conversion efficiency of up to 939 %/W (length-normalized conversion efficiency 3757 %/Wcm²), measured at telecommunications wavelengths. The device demonstrates a narrow spectral linewidth (1 nm) and can be tuned precisely with a tuning characteristic of 0.1 nm/°C, over at least 40 °C without measurable loss of efficiency.}}, author = {{Zhao, Jie and Rüsing, Michael and Javid, Usman A. and Ling, Jingwei and Li, Mingxiao and Lin, Qiang and Mookherjea, Shayan}}, issn = {{1094-4087}}, journal = {{Optics Express}}, keywords = {{Atomic and Molecular Physics, and Optics}}, number = {{13}}, publisher = {{Optica Publishing Group}}, title = {{{Shallow-etched thin-film lithium niobate waveguides for highly-efficient second-harmonic generation}}}, doi = {{10.1364/oe.395545}}, volume = {{28}}, year = {{2020}}, } @article{47955, abstract = {{Quasi-phase-matched grating structures in lithium niobate waveguides with sub-micrometer periodicities will benefit the development of short-wavelength nonlinear optical devices. Here, we report on the reproducible formation of periodically poled domains in x-cut single-crystalline thin-film lithium niobate with periodicities as short as 600 nm. Shaped single-voltage poling pulses were applied to electrode structures that were fabricated by a combination of electron-beam and direct-writing laser lithography. Evidence of successful poling with good quality was obtained through second-harmonic microscopy and piezoresponse force microscopy imaging. For the sub-micrometer period structures, we observed patterns with a double periodicity formed by domain interactions and features with sizes <200 nm.}}, author = {{Zhao, Jie and Rüsing, Michael and Roeper, Matthias and Eng, Lukas M. and Mookherjea, Shayan}}, issn = {{0021-8979}}, journal = {{Journal of Applied Physics}}, keywords = {{General Physics and Astronomy}}, number = {{19}}, publisher = {{AIP Publishing}}, title = {{{Poling thin-film x-cut lithium niobate for quasi-phase matching with sub-micrometer periodicity}}}, doi = {{10.1063/1.5143266}}, volume = {{127}}, year = {{2020}}, } @article{47952, author = {{Zhao, Jie and Ma, Chaoxuan and Rüsing, Michael and Mookherjea, Shayan}}, issn = {{0031-9007}}, journal = {{Physical Review Letters}}, keywords = {{General Physics and Astronomy}}, number = {{16}}, publisher = {{American Physical Society (APS)}}, title = {{{High Quality Entangled Photon Pair Generation in Periodically Poled Thin-Film Lithium Niobate Waveguides}}}, doi = {{10.1103/physrevlett.124.163603}}, volume = {{124}}, year = {{2020}}, } @inproceedings{47959, author = {{Rüsing, Michael and Roeper, M. and Amber, Z. and Kirbus, B. and Eng, L.M. and Zhao, J. and Mookherjea, S.}}, booktitle = {{2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)}}, publisher = {{IEEE}}, title = {{{Periodic Poling of X-Cut Thin-Film Lithium Niobate: The Route to Submicrometer Periods}}}, doi = {{10.1109/ifcs-isaf41089.2020.9234870}}, year = {{2020}}, } @article{33299, abstract = {{The aim of this study was to find out whether teaching how to search for literature would be more beneficial to students and teachers if done online through short videos rather than in person during course time. To find out whether online videos are more beneficial, two courses were asked to fill in questionnaires, one at the beginning and one at the end of the semester. One of the courses received the input online via videos and were given an exercise to put the newly learned skills to use, the other course served as a control group and learned how to search for literature during the course. The results show that while the difference between the two groups is not significant, the videos can still be regarded as being more beneficial than teaching the necessary skills during course time.}}, author = {{Hahn, Charlotte Anna}}, issn = {{ISSN 2199-8825}}, journal = {{die hochschullehre}}, keywords = {{E-Learning, information competence, literature, library, research}}, number = {{6}}, title = {{{Informationskompetenz durch E-Learning? Durch Lernvideos nach Literatur suchen}}}, year = {{2020}}, } @article{48054, author = {{Gretz, Daniela}}, issn = {{1865-8857}}, journal = {{Jahrbuch der Raabe-Gesellschaft}}, keywords = {{General Medicine}}, number = {{1}}, pages = {{120--146}}, publisher = {{Walter de Gruyter GmbH}}, title = {{{Zwischen romantischem Fragment und Skizze/n der Moderne. Zum medialen Realismus von Wilhelm Raabes "Wer kann es wenden?"}}}, doi = {{10.1515/raabe-2020-0009}}, volume = {{61}}, year = {{2020}}, } @inproceedings{46319, abstract = {{The detection of orchestrated and potentially manipulative campaigns in social media is far more meaningful than an- alyzing single account behaviour but also more challenging in terms of pattern recognition, data processing, and com- putational complexity. While supervised learning methods need an enormous amount of reliable ground truth data to find rather inflexible patterns, classical unsupervised learn- ing techniques need a lot of computational power to handle large amount of data. This makes them infeasible for real- time analysis. In this work, we demonstrate the applicability of text stream clustering for the real-time detection of coordi- nated campaigns.}}, author = {{Assenmacher, D and Adam, L and Trautmann, Heike and Grimme, C}}, booktitle = {{Proceedings of the Florida Artificial Intelligence Research Society Conference}}, title = {{{Towards Real-Time and Unsupervised Campaign Detection in Social Media}}}, year = {{2020}}, } @phdthesis{48272, abstract = {{In der Forschungsarbeit wird die Zeitungskommunikation des 18. Jahrhunderts aus sprachwissenschaftlicher Perspektive untersucht. Es wird gezeigt, wie sich das Textsortenrepertoire der Zeitung weiterentwickelte, welche sprachlichen Wandelprozesse stattfanden und wie die Zeitung übergreifend allmählich zu einem Massenmedium avancierte. Der textlinguistische Zugang auf die Zeitungssprache wird an den relevanten Stellen ergänzt durch einschlägige Erkenntnisse aus der historischen Presseforschung und der linguistischen Kulturanalyse. So wird etwa nachgezeichnet, wie sich die Zeitungsschreiber im Laufe des Jahrhunderts immer stärker von den Einflüssen der Kanzleisprachen lösten und Formulierungsstrategien etablierten, die auf die Anforderungen des journalistischen Berichtens abgestimmt waren. Mit diesen und weiteren Ergebnissen wird der Versuch angestellt, eine Forschungslücke der Sprachgeschichtsforschung zu schließen, in der die Zeitungen des 18. Jahrhunderts bisher lediglich randständig untersucht wurden.}}, author = {{Wille, Manuel}}, isbn = {{978-3-347-16354-6}}, keywords = {{text linguistics, newspaper, Hamburgischer Correspondent, Textlinguistik, Sprachgeschichte, Textsortenwandel, Korpuslinguistik}}, pages = {{450}}, publisher = {{tredition GmbH, Halenreie 40-44, 22359 Hamburg}}, title = {{{Die Tageszeitung des 18. Jahrhunderts auf dem Weg zum Massenmedium}}}, doi = {{10.17619/UNIPB/1-1079}}, volume = {{15}}, year = {{2020}}, } @book{48406, author = {{Wessel, Lena and Prediger, S. and Stein, A. and Wijers, M. and Jonker, V.}}, publisher = {{DZLM}}, title = {{{Language for Mathematics in Vocational Contexts. Handbook for teachers and facilitators}}}, year = {{2020}}, } @article{48432, author = {{Wille, Manuel}}, journal = {{Wörterbücher zur Sprach- und Kommunikationswissenschaft (WSK) Online, edited by Stefan J. Schierholz.}}, publisher = {{Berlin, Boston: De Gruyter}}, title = {{{Pressesprache}}}, year = {{2020}}, } @article{48431, author = {{Wille, Manuel}}, journal = {{Wörterbücher zur Sprach- und Kommunikationswissenschaft (WSK) Online, edited by Stefan J. Schierholz.}}, publisher = {{ Berlin, Boston: De Gruyter}}, title = {{{Zeitungsstil}}}, year = {{2020}}, } @article{48466, author = {{Jacke, Christoph}}, journal = {{Die Aufhebung}}, title = {{{So Far...From Now On # 6. }}}, year = {{2020}}, } @inproceedings{20505, abstract = {{Speech activity detection (SAD), which often rests on the fact that the noise is "more'' stationary than speech, is particularly challenging in non-stationary environments, because the time variance of the acoustic scene makes it difficult to discriminate speech from noise. We propose two approaches to SAD, where one is based on statistical signal processing, while the other utilizes neural networks. The former employs sophisticated signal processing to track the noise and speech energies and is meant to support the case for a resource efficient, unsupervised signal processing approach. The latter introduces a recurrent network layer that operates on short segments of the input speech to do temporal smoothing in the presence of non-stationary noise. The systems are tested on the Fearless Steps challenge database, which consists of the transmission data from the Apollo-11 space mission. The statistical SAD achieves comparable detection performance to earlier proposed neural network based SADs, while the neural network based approach leads to a decision cost function of 1.07% on the evaluation set of the 2020 Fearless Steps Challenge, which sets a new state of the art.}}, author = {{Heitkaemper, Jens and Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold}}, booktitle = {{INTERSPEECH 2020 Virtual Shanghai China}}, keywords = {{voice activity detection, speech activity detection, neural network, statistical speech processing}}, title = {{{Statistical and Neural Network Based Speech Activity Detection in Non-Stationary Acoustic Environments}}}, year = {{2020}}, } @article{48524, author = {{Hubner-Benz, Sylvia}}, issn = {{1742-5360}}, journal = {{International Journal of Entrepreneurial Venturing}}, keywords = {{Management of Technology and Innovation, Strategy and Management, Business and International Management}}, number = {{2}}, publisher = {{Inderscience Publishers}}, title = {{{When entrepreneurs become leaders: how entrepreneurs deal with people management}}}, doi = {{10.1504/ijev.2020.105571}}, volume = {{12}}, year = {{2020}}, } @article{48521, author = {{Rudic, Biljana and Hubner-Benz, Sylvia and Baum, Matthias}}, issn = {{2352-6734}}, journal = {{Journal of Business Venturing Insights}}, keywords = {{Management of Technology and Innovation, Business and International Management}}, publisher = {{Elsevier BV}}, title = {{{Hustlers, hipsters and hackers: Potential employees’ stereotypes of entrepreneurial leaders}}}, doi = {{10.1016/j.jbvi.2020.e00220}}, volume = {{15}}, year = {{2020}}, } @article{48523, author = {{Gales, Alina and Hubner-Benz, Sylvia}}, issn = {{1664-1078}}, journal = {{Frontiers in Psychology}}, keywords = {{General Psychology}}, publisher = {{Frontiers Media SA}}, title = {{{Perceptions of the Self Versus One’s Own Social Group: (Mis)conceptions of Older Women’s Interest in and Competence With Technology}}}, doi = {{10.3389/fpsyg.2020.00848}}, volume = {{11}}, year = {{2020}}, } @article{47919, abstract = {{AbstractWe examine whether and how political embeddedness influences financial reporting quality in China by investigating how government ownership and political connections affect Chinese listed firms’ choices of earnings management strategies. The results show that state‐owned enterprises (SOEs), and in particular, central SOEs, are more likely to substitute accrual‐based earnings management strategies with costlier but less detectable real earnings management strategies than non‐SOEs. The results also indicate that politically connected enterprises (PCEs) are more likely to employ less detectable real earnings management strategies than non‐PCEs, so much so that PCEs’ total earnings management level is higher than that of non‐PCEs.}}, author = {{Wang, Zhi and Braam, Geert and Reimsbach, Daniel and Wang, Jiaxin}}, issn = {{0810-5391}}, journal = {{Accounting & Finance}}, keywords = {{Economics, Econometrics and Finance (miscellaneous), Finance, Accounting}}, number = {{5}}, pages = {{4723--4755}}, publisher = {{Wiley}}, title = {{{Political embeddedness and firms’ choices of earnings management strategies in China}}}, doi = {{10.1111/acfi.12690}}, volume = {{60}}, year = {{2020}}, } @article{47918, author = {{Hahn, Rüdiger and Reimsbach, Daniel}}, issn = {{2168-1007}}, journal = {{Academy of Management Discoveries}}, number = {{1}}, pages = {{155--157}}, publisher = {{Academy of Management}}, title = {{{Bringing Signaling Theory to Intermediated Voluntary Disclosure. Commentary on “Detecting False Accounts in Intermediated Voluntary Disclosure” by Patrick Callery and Jessica Perkins}}}, doi = {{10.5465/amd.2020.0015}}, volume = {{7}}, year = {{2020}}, } @inbook{48405, author = {{Sprütten, F. and Wessel, Lena and Zentgraf, K. and Prediger, S.}}, booktitle = {{Sprachbildender Mathematikunterricht in der Sekundarstufe. Ein forschungsbasiertes Praxisbuch}}, editor = {{Prediger, S.}}, pages = {{115--130}}, publisher = {{Cornelsen Skriptor}}, title = {{{Fach- und sprachintegrierte Ansätze für Neuzugewanderte}}}, year = {{2020}}, } @article{45383, author = {{Dröse, Jennifer and Prediger, Susanne}}, journal = {{Journal für Mathematik-Didaktik, 41(2)}}, pages = {{399--422}}, title = {{{Enhancing Fifth Graders’ Awareness of Syntactic Features in Mathematical Word Problems: A Design Research Study on the Variation Principle}}}, doi = {{doi.org/10.1007/s13138-019-00153-z}}, year = {{2020}}, } @inbook{29413, author = {{Flaßkamp, K. and Ober-Blöbaum, Sina and Peitz, S. }}, booktitle = {{Advances in Dynamics, Optimization and Computation}}, editor = {{Junge, Oliver and Schütze, Oliver and Froyland, Gary and Ober-Blöbaum, Sina and Padberg-Gehle, Kathrin}}, pages = {{209--237}}, publisher = {{Springer International Publishing}}, title = {{{Symmetry in optimal control: A multiobjective model predictive control approach}}}, year = {{2020}}, } @inbook{48690, author = {{Spener, Anna Maria}}, booktitle = {{Celan-Jahrbuch 11}}, editor = {{Speier, Hans-Michael}}, pages = {{301–327}}, publisher = {{Königshausen & Neumann}}, title = {{{"Dein jüdisches Gesicht". Zu drei Gedichten des "Ilana"-Zyklus von Paul Celan}}}, year = {{2020}}, } @inbook{48723, author = {{Krause, Daniel and Blischke, Klaus}}, booktitle = {{Bewegung, Training, Leistung und Gesundheit}}, editor = {{Güllich, Arne and Krüger, Michael}}, publisher = {{Springer}}, title = {{{Automatisierung der motorischen Kontrolle}}}, doi = {{doi.org/10.1007/978-3-662-53386-4_62-1}}, year = {{2020}}, } @article{48382, abstract = {{AbstractThe intraindividual process of study dropout, from forming dropout intention to deregistration, is of motivational nature. Yet typical studies investigate interindividual differences, which do not inform about intraindividual processes. Our study focused on the intraindividual process of forming dropout intention, and applied expectancy-value theory to analyze its motivational underpinnings. To expand research, we considered associations of intraindividual deviations in expectancy, intrinsic value, attainment value, utility value, and cost to intraindividual deviations in dropout intention. A total of 326 undergraduate students of law and mathematics rated motivational variables and dropout intention three times from semester start to the final exam period. Multilevel regression analyses revealed that intraindividual changes in intrinsic value, attainment, and cost, but not in expectancy and utility, related to intraindividual changes in dropout intention. Further, we considered students’ demographics as moderators. Only age moderated the association between intrinsic value and dropout intention. Our results stress the crucial role of certain value components, including cost, for emerging dropout intention.}}, author = {{Schnettler, Theresa and Bobe, Julia and Scheunemann, Anne and Fries, Stefan and Grunschel, Carola}}, issn = {{0146-7239}}, journal = {{Motivation and Emotion}}, keywords = {{Experimental and Cognitive Psychology, Social Psychology}}, number = {{4}}, pages = {{491--507}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Is it still worth it? Applying expectancy-value theory to investigate the intraindividual motivational process of forming intentions to drop out from university}}}, doi = {{10.1007/s11031-020-09822-w}}, volume = {{44}}, year = {{2020}}, } @inproceedings{20762, abstract = {{The rising interest in single-channel multi-speaker speech separation sparked development of End-to-End (E2E) approaches to multispeaker speech recognition. However, up until now, state-of-theart neural network–based time domain source separation has not yet been combined with E2E speech recognition. We here demonstrate how to combine a separation module based on a Convolutional Time domain Audio Separation Network (Conv-TasNet) with an E2E speech recognizer and how to train such a model jointly by distributing it over multiple GPUs or by approximating truncated back-propagation for the convolutional front-end. To put this work into perspective and illustrate the complexity of the design space, we provide a compact overview of single-channel multi-speaker recognition systems. Our experiments show a word error rate of 11.0% on WSJ0-2mix and indicate that our joint time domain model can yield substantial improvements over cascade DNN-HMM and monolithic E2E frequency domain systems proposed so far.}}, author = {{von Neumann, Thilo and Kinoshita, Keisuke and Drude, Lukas and Boeddeker, Christoph and Delcroix, Marc and Nakatani, Tomohiro and Haeb-Umbach, Reinhold}}, booktitle = {{ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}}, pages = {{7004--7008}}, title = {{{End-to-End Training of Time Domain Audio Separation and Recognition}}}, doi = {{10.1109/ICASSP40776.2020.9053461}}, year = {{2020}}, } @inproceedings{20764, abstract = {{Most approaches to multi-talker overlapped speech separation and recognition assume that the number of simultaneously active speakers is given, but in realistic situations, it is typically unknown. To cope with this, we extend an iterative speech extraction system with mechanisms to count the number of sources and combine it with a single-talker speech recognizer to form the first end-to-end multi-talker automatic speech recognition system for an unknown number of active speakers. Our experiments show very promising performance in counting accuracy, source separation and speech recognition on simulated clean mixtures from WSJ0-2mix and WSJ0-3mix. Among others, we set a new state-of-the-art word error rate on the WSJ0-2mix database. Furthermore, our system generalizes well to a larger number of speakers than it ever saw during training, as shown in experiments with the WSJ0-4mix database. }}, author = {{von Neumann, Thilo and Boeddeker, Christoph and Drude, Lukas and Kinoshita, Keisuke and Delcroix, Marc and Nakatani, Tomohiro and Haeb-Umbach, Reinhold}}, booktitle = {{Proc. Interspeech 2020}}, pages = {{3097--3101}}, title = {{{Multi-Talker ASR for an Unknown Number of Sources: Joint Training of Source Counting, Separation and ASR}}}, doi = {{10.21437/Interspeech.2020-2519}}, year = {{2020}}, } @misc{48911, author = {{Hartung, Olaf}}, booktitle = {{Neue Westfälische}}, title = {{{Gedenken an Luftangriffe auf Paderborn: "Erinnerung wird nie obsolet sein" }}}, year = {{2020}}, } @article{48615, author = {{Hartung, Olaf}}, issn = {{1434-9736}}, journal = {{Paderborner Universitätszeitschrift}}, pages = {{88}}, publisher = {{Uni8versität paderborn}}, title = {{{Workshops zur geschichtsdidaktischen Lehre in Zeiten von Corona}}}, volume = {{2}}, year = {{2020}}, } @inproceedings{18651, abstract = {{We present an approach to deep neural network based (DNN-based) distance estimation in reverberant rooms for supporting geometry calibration tasks in wireless acoustic sensor networks. Signal diffuseness information from acoustic signals is aggregated via the coherent-to-diffuse power ratio to obtain a distance-related feature, which is mapped to a source-to-microphone distance estimate by means of a DNN. This information is then combined with direction-of-arrival estimates from compact microphone arrays to infer the geometry of the sensor network. Unlike many other approaches to geometry calibration, the proposed scheme does only require that the sampling clocks of the sensor nodes are roughly synchronized. In simulations we show that the proposed DNN-based distance estimator generalizes to unseen acoustic environments and that precise estimates of the sensor node positions are obtained. }}, author = {{Gburrek, Tobias and Schmalenstroeer, Joerg and Brendel, Andreas and Kellermann, Walter and Haeb-Umbach, Reinhold}}, booktitle = {{European Signal Processing Conference (EUSIPCO)}}, title = {{{Deep Neural Network based Distance Estimation for Geometry Calibration in Acoustic Sensor Network}}}, year = {{2020}}, } @article{49094, author = {{Krebs, Benjamin and Kabst, Rüdiger}}, journal = {{PERSONALquartely}}, title = {{{Corporate Entrepreneurship: Die Rolle und Bedeutung des Humankapitals}}}, volume = {{4}}, year = {{2020}}, } @inbook{49102, author = {{Megow, N. and Kabst, Rüdiger}}, booktitle = {{Perspektiven des Entrepreneurships: Unternehmerische Konzepte zwischen Theorie und Praxis}}, editor = {{Hölzle, K. and Tiberius, V. and Surrey, H.}}, pages = {{251--262}}, title = {{{Corporate Entrepreneurship durch die Allokation von Ressourcen}}}, year = {{2020}}, } @inproceedings{47879, author = {{Haney, Julie and Furman, Susanne and Acar, Yasemin}}, publisher = {{International Conference on Human-Computer Interaction, Copenhagen, -1}}, title = {{{Smart Home Security and Privacy Mitigations: Consumer Perceptions, Practices, and Challenges}}}, year = {{2020}}, } @inbook{47261, author = {{Haney, Julie M. and Furman, Susanne M. and Acar, Yasemin}}, booktitle = {{HCI for Cybersecurity, Privacy and Trust}}, isbn = {{9783030503086}}, issn = {{0302-9743}}, publisher = {{Springer International Publishing}}, title = {{{Smart Home Security and Privacy Mitigations: Consumer Perceptions, Practices, and Challenges}}}, doi = {{10.1007/978-3-030-50309-3_26}}, year = {{2020}}, } @inproceedings{47260, author = {{Wermke, Dominik and Huaman, Nicolas and Stransky, Christian and Busch, Niklas and Acar, Yasemin and Fahl, Sascha}}, booktitle = {{Sixteenth Symposium on Usable Privacy and Security, SOUPS 2020, August 7-11, 2020}}, editor = {{Lipford, Heather Richter and Chiasson, Sonia}}, pages = {{359–377}}, publisher = {{USENIX Association}}, title = {{{Cloudy with a Chance of Misconceptions: Exploring Users’ Perceptions and Expectations of Security and Privacy in Cloud Office Suites}}}, year = {{2020}}, } @inproceedings{47262, author = {{Gorski, Peter Leo and Acar, Yasemin and Lo Iacono, Luigi and Fahl, Sascha}}, booktitle = {{Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems}}, publisher = {{ACM}}, title = {{{Listen to Developers! A Participatory Design Study on Security Warnings for Cryptographic APIs}}}, doi = {{10.1145/3313831.3376142}}, year = {{2020}}, } @inbook{42780, author = {{Schneider, Martin}}, booktitle = {{Erzähltes Geld Finanzmärkte und Krisen in Literatur, Film und Medien}}, editor = {{Becker, Karsten}}, isbn = {{978-3-8260-6930-7}}, pages = {{243--254}}, title = {{{Gier und andere Tugenden: Widersprüchliche Bewertungen der Marktwirtschaft in Oliver Stones Wall Street}}}, year = {{2020}}, } @inbook{18905, author = {{Schneider, Martin}}, booktitle = {{Urbane Kulturen und Räume Intermedial}}, editor = {{Öhlschläger, Claudia}}, isbn = {{987-3-8376-4884-3}}, pages = {{209--221}}, title = {{{Urbane Arbeitsparadiese gestern und heute}}}, year = {{2020}}, } @inbook{20295, author = {{Schneider, Martin and Eisele, Simon}}, booktitle = {{Handbuch Gestaltung digitaler und vernetzter Arbeitswelten}}, pages = {{303--322}}, publisher = {{Springer}}, title = {{{Personalwirtschaft}}}, year = {{2020}}, } @inproceedings{24330, author = {{Knorr, Karin and Auer, Thorsten Fabian and Thommes, Kirsten}}, booktitle = {{Academy of Management Proceedings}}, issn = {{2151-6561}}, number = {{1}}, title = {{{Is Corruption Imprinted? A Study on Preconditions of Corruption in Post-Communist Countries}}}, doi = {{10.5465/AMBPP.2020.16489.abstract}}, volume = {{2020}}, year = {{2020}}, } @inbook{49184, author = {{Gretz, Daniela}}, booktitle = {{Formästhetiken und Formen der Literatur. Materialität – Ornament – Codierung}}, editor = {{Hahn, Torsten and Pethes, Nicolas}}, pages = {{229−255}}, publisher = {{transcript}}, title = {{{»die reine farben- formen- und linienfreude«. Zur Vision einer ›reinen Formkunst‹ in den ornamentalen Konstellationen der Blätter für die Kunst}}}, year = {{2020}}, }