@inproceedings{11887, abstract = {{We describe an algorithm that performs regularized non-negative matrix factorization (NMF) to find independent components in non-negative data. Previous techniques proposed for this purpose require the data to be grounded, with support that goes down to 0 along each dimension. In our work, this requirement is eliminated. Based on it, we present a technique to find a low-dimensional decomposition of spectrograms by casting it as a problem of discovering independent non-negative components from it. The algorithm itself is implemented as regularized non-negative matrix factorization (NMF). Unlike other ICA algorithms, this algorithm computes the mixing matrix rather than an unmixing matrix. This algorithm provides a better decomposition than standard NMF when the underlying sources are independent. It makes better use of additional observation streams than previous non-negative ICA algorithms.}}, author = {{Raj, Bhiksha and Wilson, Kevin W. and Krueger, Alexander and Haeb-Umbach, Reinhold}}, booktitle = {{Interspeech 2010}}, title = {{{Ungrounded Independent Non-Negative Factor Analysis}}}, year = {{2010}}, } @inproceedings{11912, abstract = {{In this contribution we provide a unified treatment of blind source separation (BSS) and noise suppression, two tasks which have traditionally been considered different and for which quite different techniques have been developed. Exploiting the sparseness of the sources in the short time frequency domain and using a probabilistic model which accounts for the presence of additive noise and which captures the spatial information of the multi-channel recording, a speech enhancement system is developed which suppresses noise and simultaneously separates speakers in case multiple speakers are active. Source activity estimation and model parameter estimation form the E-step and the M-step of the Expectation Maximization algorithm, respectively. Experimental results obtained on the dataset of the Signal Separation Evaluation Campaign 2010 demonstrate the effectiveness of the proposed system.}}, author = {{Tran Vu, Dang Hai and Haeb-Umbach, Reinhold}}, booktitle = {{International Workshop on Acoustic Echo and Noise Control (IWAENC 2010)}}, title = {{{An EM Approach to Integrated Multichannel Speech Separation and Noise Suppression}}}, year = {{2010}}, } @inproceedings{11913, abstract = {{In this paper we propose to employ directional statistics in a complex vector space to approach the problem of blind speech separation in the presence of spatially correlated noise. We interpret the values of the short time Fourier transform of the microphone signals to be draws from a mixture of complex Watson distributions, a probabilistic model which naturally accounts for spatial aliasing. The parameters of the density are related to the a priori source probabilities, the power of the sources and the transfer function ratios from sources to sensors. Estimation formulas are derived for these parameters by employing the Expectation Maximization (EM) algorithm. The E-step corresponds to the estimation of the source presence probabilities for each time-frequency bin, while the M-step leads to a maximum signal-to-noise ratio (MaxSNR) beamformer in the presence of uncertainty about the source activity. Experimental results are reported for an implementation in a generalized sidelobe canceller (GSC) like spatial beamforming configuration for 3 speech sources with significant coherent noise in reverberant environments, demonstrating the usefulness of the novel modeling framework.}}, author = {{Tran Vu, Dang Hai and Haeb-Umbach, Reinhold}}, booktitle = {{IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)}}, keywords = {{array signal processing, blind source separation, blind speech separation, complex vector space, complex Watson distribution, directional statistics, expectation-maximisation algorithm, expectation maximization algorithm, Fourier transform, Fourier transforms, generalized sidelobe canceller, interference suppression, maximum signal-to-noise ratio beamformer, microphone signal, probabilistic model, spatial aliasing, spatial beamforming configuration, speech enhancement, statistical distributions}}, pages = {{241--244}}, title = {{{Blind speech separation employing directional statistics in an Expectation Maximization framework}}}, doi = {{10.1109/ICASSP.2010.5495994}}, year = {{2010}}, } @article{32168, abstract = {{Based on a cultural-historical and dialogical conceptualization of thinking and speech as formulated in Soviet psychology and linguistics of the 1920s and 1930s, this article seeks to reflect upon a congruent way of investigating writing as a cognitive and communicative activity. What has to be taken into account when developing a methodology for writing research from a cultural-historical and dialogical perspective? Firstly, writing is not separated from other forms of speech activity like interpersonal and intrapersonal speech. Thus, inner dialogue and the addressed character of writing become crucial notions to be methodologically considered. Secondly, contrary to current writing research traditions such as literacy studies and studies of the writing process in cognitive psychology, both individual writing processes and socio-cultural writing practices as well as their relationship must be considered. These reflections lead towards the conclusion that writing is not fully accessible to external observation or to introspection. In consequence, a suggestion of a methodological approach is given, inspired by the activity theoretically informed method of auto-confrontation. The proposed method consists of two phases: a) videotaping of a writing episode and b) co-analysis of the videotaped writing episode in dialogue between writer and researcher. The second phase transfers the writing activity into a new context where understanding it becomes possible. The co-analysis makes involved positions audible: positions of the writer and of the researcher, of real and imagined readers as well as intersubjective and community-related positions. Finally, implications of the proposed research setting are discussed and evaluated with regard to the theoretical grounding. An instance of the methodology to be sketched in this article was developed in the context of the author’s dissertation project in preparation at Ludwig-Maximilians-Universität in Munich, Germany with the working title «Writing processes and writing practices. A conceptualization from a dialogical perspective». The project is funded by scholarships of Universität Bayern e.V. and Ludwig-Maximilians-Universität.}}, author = {{Karsten, Andrea}}, journal = {{Cultural-Historical Psychology}}, keywords = {{writing, writing research, dialogue, dialogical perspective, auto-confrontation}}, pages = {{91 -- 98}}, title = {{{Towards Cultural-Historical and Dialogical Writing Research – Some Methodological Considerations}}}, volume = {{4}}, year = {{2010}}, } @article{32169, abstract = {{Ziel dieses Beitrags ist, Vygotskijs Konzeption von Schreiben durch eine genaue Lektüre seiner Texte herauszuarbeiten. Es zeigen sich mit einer entwicklungspsychologischen Herangehensweise zum einen und dem Begriff des schriftlichen Sprechens im Kontext von innerem und äußerem Sprechen zum anderen zwei wesentliche Interessens- und Arbeitsgebiete Vygotskijs im Hinblick auf Schreiben. Dem folgend arbeitet dieser Beitrag zunächst die Überlegungen Vygotskijs zu ontogenetischen Aspekten des Schreibens heraus. Darüber hinaus wird dargestellt, in welcher Beziehung bei Vygotskij „schriftliches Sprechen“ zu den Konzepten des inneren und des äußeren Sprechens steht. Es ergibt sich ein Bild von Schreiben als gleichermaßen kognitivem wie kommunikativem Vorgang. Auf diesen Gedanken Vygotskijs bauen abschließend Überlegungen auf, die Wege für mögliche Weiterentwicklungen von Vygotskijs Konzeption von Schreiben weisen.}}, author = {{Karsten, Andrea}}, journal = {{Tätigkeitstheorie – Journal für tätigkeitstheoretische Forschung in Deutschland (Activity Theory – Journal of Activity-Theoretical Research in Germany) }}, pages = {{21 -- 50}}, title = {{{Konzeption von Schreiben}}}, volume = {{1}}, year = {{2010}}, } @misc{34997, author = {{Süßmann, Johannes}}, booktitle = {{Neue deutsche Biographie, Bd. 24}}, editor = {{Wissenschaften, Historische Kommission bei der Bayerischen Akademie der}}, isbn = {{978-3-428-11205-0}}, pages = {{499 f}}, publisher = {{Duncker & Humblot}}, title = {{{[Art.] Sleidanus, Johann}}}, year = {{2010}}, } @article{6090, abstract = {{Comments on an article by Jan Theeuwes (see record [rid]2010-20897-002[/rid]). Theeuwes summarizes an impressive number of studies demonstrating interference by irrelevant visual singletons in computer experiments with humans. Theeuwes assumes that this salience-driven capture of attention is fast and occurs within 150 ms since singleton onset, during the feed-forward phase of visual processing. In contrast to Theeuwes, we think that top–down contingent capture is the rule and explains initial and fast attention capture effects in the first feed-forward phase of visual processing. During a later phase and under some conditions exogenous capture of attention possibly follows. At the same time, we propose that the evidence presented by Theeuwes fails to support exogenous orienting because it fails to exclude a top–down contingent capture explanation. We present our arguments in two sections. One major source of evidence for top–down controlled attentional capture during the feed-forward}}, author = {{Ansorge, Ulrich and Horstmann, Gernot and Scharlau, Ingrid}}, issn = {{0001-6918}}, journal = {{Acta Psychologica}}, keywords = {{visual selection, attention, information, visual field, brain, Attention, Humans, Models, Psychological, Visual Perception, Volition, Brain, Visual Field, Visual Perception, Visual Attention, Information}}, number = {{2}}, pages = {{123 -- 126}}, title = {{{Top–down contingent attentional capture during feed-forward visual processing.}}}, volume = {{135}}, year = {{2010}}, } @article{6083, abstract = {{How fast can information of a first target (T1) in a rapid serial visual presentation be used for top-down allocation of attention in time? A valid cue about the temporal position of a second target (T2) was integrated into T1. The data show that 100 ms after T1 onset, T2 was identified better than without cue, raising the conditional T2 performance. T1 apparently triggers a facilitative effect of attention, known from other paradigms such as peripheral cueing. (PsycINFO Database Record (c) 2016 APA, all rights reserved)}}, author = {{Hilkenmeier, Frederic and Scharlau, Ingrid}}, issn = {{0954-1446}}, journal = {{European Journal of Cognitive Psychology}}, keywords = {{temporal attention, attentional blink paradigm, first target information, top-down allocation, rapid serial visual presentation, Stimulus Presentation Methods, Visual Stimulation, Visual Attention}}, number = {{8}}, pages = {{1222 -- 1234}}, title = {{{Rapid allocation of temporal attention in the attentional blink paradigm.}}}, volume = {{22}}, year = {{2010}}, } @misc{47684, author = {{Postler, Tim}}, keywords = {{Diplomarbeit}}, title = {{{Smart Card basierte Berechnung einer Gruppensignatur als Teil einer biometrischen Authentisierung}}}, year = {{2010}}, } @misc{48823, author = {{Hartung, Olaf}}, booktitle = {{H-Soz-Kult}}, issn = {{2196-5307}}, publisher = {{Clio-online - Historisches Fachinformationssystem e.V.}}, title = {{{Barbara Korte / Sylvia Paletschek (Hrsg.): History Goes Pop. Zur Repräsentation von Geschichte in populären Medien und Genres (= Historische Lebenswelten in populären Wissenskulturen / History in Popular Cultures 1). Bielefeld 2009}}}, year = {{2010}}, } @misc{49023, author = {{Moritz, Tilman}}, booktitle = {{H-Soz-Kult}}, title = {{{O. Auge u. a. (Hgg.): Fürsten an der Zeitenwende zwischen Gruppenbild und Individualität. Formen fürstlicher Selbstdarstellung und ihre Rezeption (1450–1550). Ostfildern 2009}}}, year = {{2010}}, } @misc{49024, author = {{Moritz, Tilman}}, booktitle = {{H-Soz-Kult}}, title = {{{R. Dauser u. a. (Hgg.): Wissen im Netz. Botanik und Pflanzentransfer in Korrespondenznetzen des 18. Jahrhunderts. Berlin 2008}}}, year = {{2010}}, } @article{11892, abstract = {{For an environment to be perceived as being smart, contextual information has to be gathered to adapt the system's behavior and its interface towards the user. Being a rich source of context information speech can be acquired unobtrusively by microphone arrays and then processed to extract information about the user and his environment. In this paper, a system for joint temporal segmentation, speaker localization, and identification is presented, which is supported by face identification from video data obtained from a steerable camera. Special attention is paid to latency aspects and online processing capabilities, as they are important for the application under investigation, namely ambient communication. It describes the vision of terminal-less, session-less and multi-modal telecommunication with remote partners, where the user can move freely within his home while the communication follows him. The speaker diarization serves as a context source, which has been integrated in a service-oriented middleware architecture and provided to the application to select the most appropriate I/O device and to steer the camera towards the speaker during ambient communication.}}, author = {{Schmalenstroeer, Joerg and Haeb-Umbach, Reinhold}}, journal = {{IEEE Journal of Selected Topics in Signal Processing}}, keywords = {{audio streaming, audio visual data streaming, context information speech, face identification, face recognition, image segmentation, middleware, multimodal telecommunication, online diarization, service oriented middleware architecture, sessionless telecommunication, software architecture, speaker identification, speaker localization, speaker recognition, steerable camera, telecommunication computing, temporal segmentation, terminal-less telecommunication, video streaming}}, number = {{5}}, pages = {{845--856}}, title = {{{Online Diarization of Streaming Audio-Visual Data for Smart Environments}}}, doi = {{10.1109/JSTSP.2010.2050519}}, volume = {{4}}, year = {{2010}}, } @article{50559, abstract = {{Dass die Filmgeschichte des frühen Jazz in weiten Teilen noch Forschungsdesiderat geblieben ist, ist insofern erstaunlich, als die performative Komponente – der Auftritt als solcher, aber genauso die mediale Bannung und Verfügbarmachung des 'unwiederholbaren Moments' - unbestritten als eines der wichtigsten Charakteristika von Jazz gilt. Vorrangiges Medium der Speicherung von Jazzgeschichte sind selbstverständlich die Tonträger. Hinsichtlich der Performance von Jazz - also der körperlichen, Identität vorstellenden oder konstruierenden Präsenz der Musikerin/des Musikers - sind aber gerade Bildmedien und insbesondere Filmkunstwerke aussagekräftige Auskunftgeber (Gabbard 2003). Zu den frühesten tonfilmischen Jazzdokumenten gehören die beiden Jazz-Kurzfilme, die Dudley Murphy im Jahr 1929 für RKO schrieb und drehte: die musical shorts 'St. Louis Blues' mit Bessie Smith (Premiere: New York Ende August 1929) und 'Black and Tan Fantasy' mit Duke Ellington (Premiere: New York 8. Dezember 1929)}}, author = {{Münzmay, Andreas}}, journal = {{Kieler Beiträge zur Filmmusikforschung}}, pages = {{57 -- 79}}, title = {{{Visual Jazz. Performative Mittel afroamerikanischer Identitätsrepräsentation in Dudley Murphys ST. LOUIS BLUES und BLACK AND TAN FANTASY (1929)}}}, doi = {{10.59056/kbzf.2010.4.p52-79 }}, volume = {{4}}, year = {{2010}}, } @misc{18679, author = {{Peckhaus, Volker}}, booktitle = {{zbMATH Open, Zbl. 1181.01029}}, title = {{{Bolzano, Bernard, Philosophische Tagebücher 1803–1810. Erster Teil, hg. v. Jan Berg (Bernard Bolzano-Gesamtausgabe. Reihe II. B.14), Friedrich Frommann Verlag-Günther Holzboog: Stuttgart-Bad Cannstatt 2009}}}, year = {{2010}}, } @misc{18680, author = {{Peckhaus, Volker}}, booktitle = {{zbMATH Open, Zbl. 1181.01030}}, title = {{{Bolzano, Bernard, Philosophische Tagebücher 1803–1810. Zweiter Teil, hg. v. Jan Berg (Bernard Bolzano-Gesamtausgabe. Reihe II. B.15), Friedrich Frommann Verlag-Günther Holzboog: Stuttgart-Bad Cannstatt 2009}}}, year = {{2010}}, } @misc{18678, author = {{Peckhaus, Volker}}, booktitle = {{zbMATH Open, Zbl. 1180.51002}}, title = {{{De Risi, Vincenzo, Geometry and Monadology. Leibniz’s Analysis Situs and Philosophy of Space, Birkhäuser: Basel/Boston/Berlin 2007 (Science Networks. Historical Studies; 33)}}}, year = {{2010}}, } @article{17611, author = {{Peckhaus, Volker}}, journal = {{History and Philosophy of Logic}}, pages = {{1}}, title = {{{Editorial}}}, volume = {{31}}, year = {{2010}}, } @misc{18681, author = {{Peckhaus, Volker}}, booktitle = {{zbMATH Open, Zbl. 1194.03008}}, title = {{{Degen, J.W., “Variations of Frege’s Grundgesetze”, Travaux de logique 18 (2007), 15–31}}}, year = {{2010}}, } @misc{18677, author = {{Peckhaus, Volker}}, booktitle = {{zbMATH Open, Zbl. 1178.03004}}, title = {{{Almog, Joseph, “Frege’s Puzzles”, Journal of Philosophical Logic 37 (2008), 549–574}}}, year = {{2010}}, }