@inproceedings{14822, abstract = {{Multi-talker speech and moving speakers still pose a significant challenge to automatic speech recognition systems. Assuming an enrollment utterance of the target speakeris available, the so-called SpeakerBeam concept has been recently proposed to extract the target speaker from a speech mixture. If multi-channel input is available, spatial properties of the speaker can be exploited to support the source extraction. In this contribution we investigate different approaches to exploit such spatial information. In particular, we are interested in the question, how useful this information is if the target speaker changes his/her position. To this end, we present a SpeakerBeam-based source extraction network that is adapted to work on moving speakers by recursively updating the beamformer coefficients. Experimental results are presented on two data sets, one with articially created room impulse responses, and one with real room impulse responses and noise recorded in a conference room. Interestingly, spatial features turn out to be advantageous even if the speaker position changes.}}, author = {{Heitkaemper, Jens and Feher, Thomas and Freitag, Michael and Haeb-Umbach, Reinhold}}, booktitle = {{International Conference on Statistical Language and Speech Processing 2019, Ljubljana, Slovenia}}, title = {{{A Study on Online Source Extraction in the Presence of Changing Speaker Positions}}}, year = {{2019}}, } @inproceedings{14824, abstract = {{This paper deals with multi-channel speech recognition in scenarios with multiple speakers. Recently, the spectral characteristics of a target speaker, extracted from an adaptation utterance, have been used to guide a neural network mask estimator to focus on that speaker. In this work we present two variants of speakeraware neural networks, which exploit both spectral and spatial information to allow better discrimination between target and interfering speakers. Thus, we introduce either a spatial preprocessing prior to the mask estimation or a spatial plus spectral speaker characterization block whose output is directly fed into the neural mask estimator. The target speaker’s spectral and spatial signature is extracted from an adaptation utterance recorded at the beginning of a session. We further adapt the architecture for low-latency processing by means of block-online beamforming that recursively updates the signal statistics. Experimental results show that the additional spatial information clearly improves source extraction, in particular in the same-gender case, and that our proposal achieves state-of-the-art performance in terms of distortion reduction and recognition accuracy.}}, author = {{Martin-Donas, Juan M. and Heitkaemper, Jens and Haeb-Umbach, Reinhold and Gomez, Angel M. and Peinado, Antonio M.}}, booktitle = {{INTERSPEECH 2019, Graz, Austria}}, title = {{{Multi-Channel Block-Online Source Extraction based on Utterance Adaptation}}}, year = {{2019}}, } @inproceedings{14826, abstract = {{In this paper, we present Hitachi and Paderborn University’s joint effort for automatic speech recognition (ASR) in a dinner party scenario. The main challenges of ASR systems for dinner party recordings obtained by multiple microphone arrays are (1) heavy speech overlaps, (2) severe noise and reverberation, (3) very natural onversational content, and possibly (4) insufficient training data. As an example of a dinner party scenario, we have chosen the data presented during the CHiME-5 speech recognition challenge, where the baseline ASR had a 73.3% word error rate (WER), and even the best performing system at the CHiME-5 challenge had a 46.1% WER. We extensively investigated a combination of the guided source separation-based speech enhancement technique and an already proposed strong ASR backend and found that a tight combination of these techniques provided substantial accuracy improvements. Our final system achieved WERs of 39.94% and 41.64% for the development and evaluation data, respectively, both of which are the best published results for the dataset. We also investigated with additional training data on the official small data in the CHiME-5 corpus to assess the intrinsic difficulty of this ASR task.}}, author = {{Kanda, Naoyuki and Boeddeker, Christoph and Heitkaemper, Jens and Fujita, Yusuke and Horiguchi, Shota and Haeb-Umbach, Reinhold}}, booktitle = {{INTERSPEECH 2019, Graz, Austria}}, title = {{{Guided Source Separation Meets a Strong ASR Backend: Hitachi/Paderborn University Joint Investigation for Dinner Party ASR}}}, year = {{2019}}, } @inbook{14828, author = {{Seipelt, Agnes Regina and Klugseder, Robert}}, booktitle = {{Musik im Zusammenhang: Festschrift Peter Revers zum 65. Geburtstag}}, editor = {{Aringer, Klaus and Utz, Christian and Wozonig, Thomas}}, isbn = {{978-3-99012-553-3}}, pages = {{69–87}}, publisher = {{Hollitzer}}, title = {{{Digitale Musikanalyse auf Grundlage von MEI-codierten Daten}}}, year = {{2019}}, } @proceedings{14829, editor = {{Scheideler, Christian and Berenbrink, Petra}}, isbn = {{978-1-4503-6184-2}}, publisher = {{ACM}}, title = {{{The 31st ACM Symposium on Parallelism in Algorithms and Architectures, SPAA 2019, Phoenix, AZ, USA, June 22-24, 2019}}}, doi = {{10.1145/3323165}}, year = {{2019}}, } @article{14830, author = {{Gmyr, Robert and Lefevre, Jonas and Scheideler, Christian}}, journal = {{Theory Comput. Syst.}}, number = {{2}}, pages = {{177--199}}, title = {{{Self-Stabilizing Metric Graphs}}}, doi = {{10.1007/s00224-017-9823-4}}, volume = {{63}}, year = {{2019}}, } @misc{14831, author = {{Sabu, Nithin S.}}, publisher = {{Paderborn University}}, title = {{{FPGA Acceleration of String Search Techniques in Huge Data Sets}}}, year = {{2019}}, } @phdthesis{14849, author = {{Vaz, Gavin Francis}}, publisher = {{Universität Paderborn}}, title = {{{Using Just-in-Time Code Generation to Transparently Accelerate Applications in Heterogeneous Systems}}}, year = {{2019}}, } @phdthesis{14851, author = {{Mäcker, Alexander}}, title = {{{On Scheduling with Setup Times}}}, doi = {{10.17619/UNIPB/1-828}}, year = {{2019}}, } @inproceedings{14852, abstract = {{In a variety of industrial applications, liquids are atomized to produce aerosols for further processing. Example applications are the coating of surfaces with paints, the application of ultra-thin adhesive layers and the atomization of fuels for the production of combustible dispersions. In this publication different atomizing principles (standing-wave, capillary-wave, vibrating-mesh) are examined and discussed. Using an optimized standing-wave system, tough liquids with viscosities of up to about 100 Pas could be successfully atomized.}}, author = {{Dunst, Paul and Bornmann, Peter and Hemsel, Tobias and Littmann, Walter and Sextro, Walter}}, booktitle = {{Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019)}}, editor = {{Lötters, Joost and Urban, Gerald}}, keywords = {{atomization, ultrasound, standing-wave, capillarywave, vibrating-mesh}}, location = {{Enschede, The Netherlands}}, pages = {{140--143}}, title = {{{Atomization of Fluids with Ultrasound}}}, year = {{2019}}, } @article{14870, author = {{Wei, Qunshuo and Sain, Basudeb and Wang, Yongtian and Reineke, Bernhard and Li, Xiaowei and Huang, Lingling and Zentgraf, Thomas}}, issn = {{1530-6984}}, journal = {{Nano Letters}}, number = {{12}}, pages = {{8964–8971}}, title = {{{Simultaneous Spectral and Spatial Modulation for Color Printing and Holography Using All-dielectric Metasurfaces}}}, doi = {{10.1021/acs.nanolett.9b03957}}, volume = {{19}}, year = {{2019}}, } @inbook{14890, author = {{Kuhlemann, Stefan and Sellmann, Meinolf and Tierney, Kevin}}, booktitle = {{Lecture Notes in Computer Science}}, isbn = {{9783030300470}}, issn = {{0302-9743}}, title = {{{Exploiting Counterfactuals for Scalable Stochastic Optimization}}}, doi = {{10.1007/978-3-030-30048-7_40}}, year = {{2019}}, } @article{14896, author = {{Dann, Andreas and Hermann, Ben and Bodden, Eric}}, issn = {{0098-5589}}, journal = {{IEEE Transactions on Software Engineering}}, pages = {{1--1}}, title = {{{ModGuard: Identifying Integrity &Confidentiality Violations in Java Modules}}}, doi = {{10.1109/tse.2019.2931331}}, year = {{2019}}, } @inproceedings{14897, author = {{Dann, Andreas and Hermann, Ben and Bodden, Eric}}, booktitle = {{Proceedings of the 8th ACM SIGPLAN International Workshop on State Of the Art in Program Analysis - SOAP 2019}}, isbn = {{9781450367202}}, title = {{{SootDiff: bytecode comparison across different Java compilers}}}, doi = {{10.1145/3315568.3329966}}, year = {{2019}}, } @inproceedings{14899, author = {{Kruger, Stefan and Hermann, Ben}}, booktitle = {{2019 IEEE/ACM 2nd International Workshop on Gender Equality in Software Engineering (GE)}}, isbn = {{9781728122458}}, title = {{{Can an Online Service Predict Gender? On the State-of-the-Art in Gender Identification from Texts}}}, doi = {{10.1109/ge.2019.00012}}, year = {{2019}}, } @techreport{14902, author = {{Mair, Christina and Scheffler, Wolfram and Senger, Isabell and Sureth-Sloane, Caren}}, title = {{{Analyse der Veränderung der zwischenstaatlichen Gewinnaufteilung bei Einführung einer standardisierten Gewinnverteilungsmethode am Beispiel des Einsatzes von 3D-Druckern}}}, volume = {{42}}, year = {{2019}}, } @article{14904, abstract = {{Die Komplexität von Steuersystemen gewinnt in der Debatte um den internationalen Steuerwettbewerb zunehmend an Bedeutung. Im vorliegenden Beitrag erfolgt, basierend auf den Befragungsdaten, die dem Tax Complexity Index von Hoppe et al. (2019) zugrunde liegen, eine umfassende Gegenüberstellung der Komplexität der Steuersysteme von Deutschland und Österreich unter Berücksichtigung der Mittelwerte aller vom Index abgedeckten Länder. Die Steuergesetze weisen sowohl in Deutschland als auch in Österreich einen verhältnismäßig hohen Grad an Komplexität auf. Bei den steuerlichen Rahmenbedingungen fällt der Grad an Komplexität in beiden Ländern dagegen niedrig aus, wobei Österreich im Durchschnitt weniger komplex ist als Deutschland.}}, author = {{Hoppe, Thomas and Rechbauer, Martina and Sturm, Susann}}, journal = {{Steuer und Wirtschaft}}, number = {{4}}, pages = {{397--412}}, title = {{{Steuerkomplexität im Vergleich zwischen Deutschland und Österreich - Eine Analyse des Status quo}}}, volume = {{96}}, year = {{2019}}, } @article{14905, abstract = {{A key premise underlying most of the economic literature is that rational decision-makers will choose dominant strategies over dominated alternatives. However, prior literature in various disciplines including business, psychology, and economics document a series of phenomena associated with violations of the dominance principle in decision-making. In this comprehensive review, we discuss conditions under which people violate the dominance principle in decision-making. When presenting violations of dominance in empirical and experimental studies, we differentiate between absolute, statewise, and stochastic (first- and second-order) violations of dominance. Furthermore, we categorize the literature by the leading causes for dominance violations: framing, reference points, certainty effects, bounded rationality, and emotional responses.}}, author = {{Kourouxous, Thomas and Bauer, Thomas}}, issn = {{2198-3402}}, journal = {{Business Research}}, number = {{1}}, pages = {{209--239}}, title = {{{Violations of Dominance in Decision-Making}}}, doi = {{10.1007/s40685-019-0093-7}}, volume = {{12}}, year = {{2019}}, } @article{14910, author = {{Majdanska, Alicja and Wu, Yuchen}}, journal = {{Tax Notes International}}, number = {{10}}, pages = {{1045--1065}}, title = {{{Using Impact Evaluation to Examine Domestic and International Cooperative Compliance Programs}}}, volume = {{93}}, year = {{2019}}, } @article{14990, abstract = {{We investigate optical microresonators consisting of either one or two coupled rectangular strips between upper and lower slab waveguides. The cavities are evanescently excited under oblique angles by thin-film guided, in-plane unguided waves supported by one of the slab waveguides. Beyond a specific incidence angle, losses are fully suppressed. The interaction between the guided mode of the cavity-strip and the incoming slab modes leads to resonant behavior for specific incidence angles and gaps. For a single cavity, at resonance, the input power is equally split among each of the four output ports, while for two cavities an add-drop filter can be realized that, at resonance, routes the incoming power completely to the forward drop waveguide via the cavity. For both applications, the strength of the interaction is controlled by the gaps between cavities and waveguides.}}, author = {{Ebers, Lena and Hammer, Manfred and Berkemeier, Manuel B. and Menzel, Alexander and Förstner, Jens}}, issn = {{2578-7519}}, journal = {{OSA Continuum}}, keywords = {{tet_topic_waveguides}}, pages = {{3288}}, title = {{{Coupled microstrip-cavities under oblique incidence of semi-guided waves: a lossless integrated optical add-drop filter}}}, doi = {{10.1364/osac.2.003288}}, volume = {{2}}, year = {{2019}}, }