TY - CONF AU - Kupke, J. AU - Koch, S. AU - Penidon, R. AU - Schoppa, M AU - Krauter, Stefan AU - Grunow, Paul ID - 6811 T2 - Proceedings of the 25th European Photovoltaic Solar Energy Conference and Exhibition, Valencia (Spanien), September 6-10, 2010 TI - Dynamic mechanical load tests on crystalline silicon modules. ER - TY - CONF AU - Bendfeld, Jörg AU - Tigges, Martin AU - Splett, Michael ID - 6812 T2 - Wissenschaftliche Verhandlungen 2010 der Deutschen Physikalischen Gesellschaft, Hannover, März 2010 TI - Konzept zur nachhaltigen Integration der Offshore-Windenergie mittels dezentraler Biogasnutzung ER - TY - CONF AU - Bendfeld, Jörg AU - Tigges, Martin AU - Splett, Michael ID - 6813 T2 - Wissenschaftliche Verhandlungen 2010 der Deutschen Physikalischen Gesellschaft, Hannover, März 2010 TI - Draft proposal for an Offshore Metmast for Renewable Energy ER - TY - CONF AU - Bendfeld, Jörg AU - Tigges, Martin AU - Splett, Michael ID - 6814 T2 - Wissenschaftliche Verhandlungen 2010 der Deutschen Physikalischen Gesellschaft, Hannover, März 2010 TI - Wave measurements with different principles (ast and bouy) ER - TY - CONF AU - Bendfeld, Jörg AU - Krieger, Jens AU - Splett, Michael ID - 6815 T2 - Proceedings of the European Wind Energy Conference & Exhibition (EWEC 2010) TI - Energy feed characteristics of offshore wind farms – a modeled analysis of single and clustered farms ER - TY - CONF AU - Bendfeld, Jörg AU - Krieger, Jens AU - Splett, Michael ID - 6816 T2 - Proceedings of the European Wind Energy Conference & Exhibition (EWEC 2010) TI - Reducing the offshore wind farm feed-in fluctuations by fast reacting biogas plants ER - TY - CONF AU - Bendfeld, Jörg AU - Krieger, Jens AU - Splett, Michael ID - 6817 T2 - Proceedings of the European Wind Energy Conference & Exhibition (EWEC 2010) TI - Measurements for wave and current modeling regarding offshore-windfarms ER - TY - CONF AU - Bendfeld, Jörg AU - Krieger, Jens AU - Splett, Michael ID - 6818 T2 - Proceedings of the European Wind Energy Conference & Exhibition (EWEC 2010) TI - Advanced,multipurpose offshore-metmast ER - TY - CONF AU - Bendfeld, Jörg AU - Krieger, Jens AU - Splett, Michael ID - 6819 T2 - Proceedings of the European Wind Energy Conference & Exhibition (EWEC 2010) TI - Variations of pricing at energy markets caused by energyfeed of offshore wind farms ER - TY - CONF AU - Bendfeld, Jörg AU - Tigges, Martin AU - Splett, Michael AU - Wollenberg, J. AU - Krieger, Jens ID - 6820 T2 - Proceedings of the ICCI2010, 16. International Energy & Environment Fair & Conference TI - Optimization of the energy feed-in for renewable energies ER - TY - GEN AU - Bendfeld, Jörg ID - 6821 TI - Deutschland geht Offshore ER - TY - CONF AU - Bendfeld, Jörg AU - Madge, S. AU - Splett, Michael AU - Krieger, jens ID - 6822 T2 - Proceedings of the North American Offshore Wind Conference &Exhibition, October 5.-7, 2010 TI - Wave and Current measurements for Offshorwindfarms ER - TY - CONF AU - Bendfeld, Jörg AU - Madge, S. AU - Splett, Michael AU - Krieger, jens ID - 6823 T2 - Proceedings of the North American Offshore Wind Conference &Exhibition, October 5.-7, 2010 TI - Advanced design for an Offshore Metmast ER - TY - CONF AU - Bendfeld, Jörg AU - Krieger, Jens AU - Splett, Michael ID - 6824 T2 - Proceedings of the German Wind Energy Conference (DEWEK 2010) TI - Functional Design for an Offshore Metmast ER - TY - CONF AU - Bendfeld, Jörg AU - Splett, Michael ID - 6825 T2 - Proceedings of the DEWEK 2010 TI - 5 Years Offshore Metmast Amrumbank West ER - TY - CONF AU - Bendfeld, Jörg AU - Splett, Michael ID - 6826 T2 - Proceedings of the DEWEK 2010 TI - Wave Measurements forOffshore Wind Power Work and Safety ER - TY - CONF AU - Bendfeld, Jörg AU - Tigges, Martin AU - Splett, Michael ID - 6827 T2 - Proceedings of the DEWEK 2010 TI - Balancing Feed-in Fluctuations of Offshore Wind Farmswith Biogas Fired Turbines ER - TY - CONF AU - Bendfeld, Jörg AU - Splett, Michael AU - Tigges, Martin AU - Krauter, Stefan ID - 6829 T2 - Proceedings of the 5th InternationalRenewable Energy Storage Conference (IRES2010) TI - Supporting offshore wind energy generation through biogas power plants ER - TY - CONF AU - Kobialka, Hans-Ulrich AU - Schulz, Viktor AU - Splett, Michael AU - Bendfeld, Jörg ID - 6830 T2 - Proceedings of the DEWEK 2010 TI - Operation Management for Coping with Wakes within Offshore Wind Farms ER - TY - CONF AU - Böttcher, A. AU - Prorok, A. AU - Ferretti, N. AU - Krauter, Stefan AU - Grunow, Paul ID - 6831 T2 - Proceedings of the 25th European Photovoltaic Solar Energy Conference and Exhibition, Valencia (Spanien), September 6-10,2010 TI - Flasher tolerances of powermeasurement on μ-morph tandem modules ER - TY - CONF AU - Preiss, A. AU - Krauter, Stefan ID - 6832 T2 - Proceedings of the 25th European Photovoltaic Solar Energy Conference and Exhibition, Valencia (Spanien), September 6-10,2010 TI - Performance comparison of a-Si, μ-Si, and c-Si as a function of air mass and turbidity. ER - TY - CHAP AU - Pferdt, F. G. AU - Kremer, H.-Hugo ED - Herzig, B. ED - Meister, D.M. ED - Moser, H. ED - Niesyto, H. ID - 6841 T2 - Jahrbuch Medienpädagogik 8. Medienkompetenz und Web 2.0 TI - Berufliches Lernen mit Web 2.0 - Medienkompetenz und berufliche Handlungskompetenz im Duell? ER - TY - CHAP AU - Buschfeld, D. AU - Kremer, H.-Hugo ED - Nickolaus, R. ED - Pätzold, G. ED - Reinisch, H. ED - Tramm, T. ID - 6844 T2 - Handbuch Berufs- und Wirtschaftspädagogik TI - Implementation von Curricula am Beispiel der Lernfeldinnovation ER - TY - CHAP AU - Kremer, H.-Hugo ED - Gauger, J.-D. ED - Kraus, J. ID - 6845 T2 - Bildung und Unterricht in Zeiten von Google und Wikipedia TI - Bildung in Zeiten neuer Medien aus berufs- und wirtschaftspädagogischer Perspektive ER - TY - JOUR AU - Kremer, H.-Hugo AU - Gebbe, M. AU - Wirth, W. ID - 6848 IS - 1 JF - Bewährungshilfe. Soziales - Strafrecht - Kriminalpolitik TI - Tandem: Ausbildungsfähigkeit von Gefangenen und Gewaltprävention im Strafvollzug ER - TY - JOUR AU - Kremer, H.-Hugo AU - Frehe, Petra ID - 6849 JF - Wirtschaft und Erziehung TI - Individuelle Förderung - aber wie? Einblicke in das Innovationsprojekt InLab ER - TY - CHAP AU - Kremer, H.-Hugo AU - Zoyke, A. ED - Münk, D. ED - Schelten, A. ID - 6850 T2 - Kompetenzermittlung für die Berufsausbildung. Verfahren, Probleme und Perspektive im nationalen, europäischen und internationalen Raum TI - Kompetenzdiagnose als Basis individueller Förderung - Zum Geheimnis einer Black Box!? ER - TY - JOUR AU - Tönnies, Merle ID - 6863 JF - Victorian Highways - Victorian Byways. New Approaches to Nineteenth-Century British Literature and Culture TI - Transgressive Melodrama. The 'Sensational' 1860s and their After-Effects ER - TY - CONF AU - Meyer auf der Heide, Friedhelm AU - Phillips, Cynthia A. ID - 16414 SN - 9781450300797 TI - Proceedings of the 22nd ACM symposium on Parallelism in algorithms and architectures - SPAA '10 ER - TY - BOOK ED - Schmeisser, Wilhelm ED - Krimphove, Dieter ID - 1642 TI - Internationale Personalwirtschaft und Internationales Arbeitsrecht ER - TY - CHAP AB - We present an approach for real-time rendering of complex 3D scenes consisting of millions of polygons on limited graphics hardware. In a preprocessing step, powerful hardware is used to gain fine granular global visibility information of a scene using an adaptive sampling algorithm. Additively the visual influence of each object on the eventual rendered image is estimated. This influence is used to select the most important objects to display in our approximative culling algorithm. After the visibility data is compressed to meet the storage capabilities of small devices, we achieve an interactive walkthrough of the Power Plant scene on a standard netbook with an integrated graphics chipset. AU - Eikel, Benjamin AU - Jähn, Claudius AU - Fischer, Matthias ID - 16505 SN - 0302-9743 T2 - Advances in Visual Computing TI - Preprocessed Global Visibility for Real-Time Rendering on Low-End Hardware ER - TY - CHAP AU - Dellnitz, Michael AU - Padberg, Kathrin AU - Preis, Robert AU - Thiere, Bianca ID - 16575 SN - 9789048198832 T2 - Nonlinear Science and Complexity TI - Continuous and Discrete Concepts for Detecting Transport Barriers in the Planar Circular Restricted Three Body Problem ER - TY - JOUR AU - Flaßkamp, Kathrin AU - Ober-Blöbaum, Sina AU - Kobilarov, Marin ID - 16590 JF - PAMM SN - 1617-7061 TI - Solving optimal control problems by using inherent dynamical properties ER - TY - JOUR AU - Tantardini, Marco AU - Fantino, Elena AU - Ren, Yuan AU - Pergola, Pierpaolo AU - Gómez, Gerard AU - Masdemont, Josep J. ID - 16673 JF - Celestial Mechanics and Dynamical Astronomy SN - 0923-2958 TI - Spacecraft trajectories to the L3 point of the Sun–Earth three-body problem ER - TY - CONF AU - Thiere, Bianca AU - Ober-Blöbaum, Sina AU - Pergola, Pierpaolo ID - 16675 SN - 9781624101502 T2 - AIAA/AAS Astrodynamics Specialist Conference TI - Detecting Initial Guesses for Trajectories in the (P)CRTBP ER - TY - JOUR AU - Krimphove, Dieter ID - 1675 IS - Heft 6 JF - Arbeit und Arbeitsrecht (AuA) TI - Das Gendiagnostikgesetz ER - TY - JOUR AU - Krimphove, Dieter ID - 1676 IS - Heft 7 JF - Der Betriebsrat TI - Im Überblick: Die Beteiligungsrechte des Betriebsrats ER - TY - JOUR AU - Krimphove, Dieter ID - 1677 IS - Heft 23 JF - EuZW TI - Brauchen wir die Europäische Genossenschaft? ER - TY - CONF AU - Huck, Wilfried AU - Alakbarov, Alexej AU - Domik, Gitta AU - Radkowski, Rafael AU - Tölke, Roswitha AU - Mikus, Ann-Cathrin AU - Geisen, Silke ID - 16851 T2 - 12. Jahrestagung der Deutschsprachigen Gesellschaft für Psychotraumatologie (DeGPT) TI - Computergestützte traumatherapeutische Behandlungsmöglichkeiten bei Verkehrsunfallopfern von Kindern und Jugendlichen ER - TY - GEN AU - Krimphove, Dieter ID - 1693 IS - 2 T2 - Rivista Trimesttriale di Diritto e Procedura Civile Anno LXIV Fasc. TI - Edoardo Ferrante: Consensualismo e Trascrizione, Cedam Padova, 2008, pp I-XIV; 1-367 ER - TY - CHAP AU - Becker, Jörg AU - Beverungen, Daniel AU - Knackstedt, Ralf AU - Müller, Oliver ID - 17127 SN - 978-3-7908-2620-3 T2 - Dienstleistungsmodellierung 2010 TI - Preisfindung für hybride Leistungsbündel--Modellbasierte Integration von Ansätzen zur Entscheidungsunterstützung ER - TY - CHAP AU - Becker, Jörg AU - Knackstedt, Ralf AU - Müller, Oliver AU - Benölken, Alexander AU - Schmitt, Oliver AU - Thillainathan, Mayooran AU - Schulke, André ID - 17129 SN - 9783642118586 T2 - Vertriebsinformationssysteme TI - Online-Produktkonfiguratoren – Status quo und Entwicklungsperspektiven ER - TY - CONF AU - Becker, Jörg AU - Müller, Oliver AU - Woditsch, Manuel ID - 17130 T2 - European Conference on Information Systems TI - An ontology-based natural language service discovery engine--design and experimental evaluation ER - TY - JOUR AU - Drzevitzky, Stephanie AU - Kastens, Uwe AU - Platzner, Marco ID - 10605 JF - International Journal of Reconfigurable Computing TI - Proof-Carrying Hardware: Concept and Prototype Tool Flow for Online Verification VL - 2010 ER - TY - GEN AU - Agne, Andreas ID - 10614 TI - Virtuelle Speicherverwaltung für Hardware Threads in Rekonfigurierbaren Systemen ER - TY - GEN AU - Boschmann, Alexander ID - 10629 TI - EMG-basierte Ganganalyse ER - TY - GEN AU - Breitlauch, Daniel ID - 10642 TI - Evolvable Cache Controller ER - TY - GEN AU - Dridger, Denis ID - 10649 TI - Soft Microprocessors with tightly coupled Application-Specific Coprocessors ER - TY - GEN AU - Graf, Tobias ID - 10657 TI - Parallelization of the UCT Algorithm on HPC-Clusters ER - TY - GEN AU - Fröse, Viktor AU - Ibers, Rüdiger AU - Hellebrand, Sybille ID - 10670 KW - WORKSHOP TI - Testdatenkompression mit Hilfe der Netzwerkinfrastruktur ER - TY - CONF AU - Kaufmann, Paul AU - Englehart, Kevin AU - Platzner, Marco ID - 10683 T2 - International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) TI - Fluctuating EMG Signals: Investigating Long-term Effects of Pattern Matching Algorithms ER - TY - CONF AU - Kaufmann, Paul AU - Knieper, Tobias AU - Platzner, Marco ID - 10686 T2 - IEEE World Congress on Computational Intelligence (WCCI), Congress on Evolutionary Computation (CEC) TI - A Novel Hybrid Evolutionary Strategy and its Periodization with Multi-objective Genetic Optimizers ER - TY - JOUR AU - Kebschull, Udo AU - Platzner, Marco AU - Teich, Jürgen ID - 10694 IS - 3 JF - IET Computers Digital Techniques SN - 1751-8601 TI - Selected papers from the 18th International Conference on Field Programmable Logic and Applications, FPL 2008 (editorial) VL - 4 ER - TY - GEN AU - Knieper, Tobias ID - 10697 TI - Hybridization of Global Multi-Objective and Local Search Techniques ER - TY - CONF AU - Knieper, Tobias AU - Kaufmann, Paul AU - Glette, Kyrre AU - Platzner, Marco AU - Torresen, Jim ID - 10699 T2 - IEEE Intl. Conf. on Evolvable Systems (ICES) TI - Coping with Resource Fluctuations: The Run-time Reconfigurable Functional Unit Row Classifier Architecture VL - 6274 ER - TY - CHAP AU - Lübbers, Enno AU - Platzner, Marco ED - Platzner, Marco ED - Teich, Jürgen ED - Wehn, Norbert ID - 10704 T2 - Dynamically Reconfigurable Systems: Architectures, Design Methods and Applications TI - ReconOS: An Operating System for Dynamically Reconfigurable Hardware ER - TY - GEN AU - Meiche, Robert ID - 10710 TI - FPGA/CPU Multicore-Plattform für ReconOS/eCos ER - TY - GEN AU - Niekamp, Manuel ID - 10717 TI - Transparente Hardwarebeschleunigung durch Shared Library Interposing ER - TY - GEN AU - Runde, Bodo ID - 10731 TI - A Token-Ring Network-On-Chip for Message Passing in ReconOS ER - TY - GEN AU - Wiersema, Tobias ID - 10752 TI - Scheduling Support for Heterogeneous Hardware Accelerators under Linux ER - TY - BOOK ED - Platzner, Marco ED - Teich, Jürgen ED - Wehn, Norbert ID - 10763 SN - 9048134846 TI - Dynamically Reconfigurable Systems: Architectures, Design Methods and Applications ER - TY - CONF AU - Khatir, Mehrdad AU - Ghasemzadeh Mohammadi, Hassan AU - Ejlali, Alireza ID - 10776 T2 - Computer Design (ICCD), 2010 IEEE International Conference on TI - Sub-threshold charge recovery circuits ER - TY - CONF AB - In this paper we present a robust location estimation algorithm especially focused on the accuracy in vertical position. A loosely-coupled error state space Kalman filter, which fuses sensor data of an Inertial Measurement Unit and the output of a Global Positioning System device, is augmented by height information from an altitude measurement unit. This unit consists of a barometric altimeter whose output is fused with topographic map information by a Kalman filter to provide robust information about the current vertical user position. These data replace the less reliable vertical position information provided the GPS device. It is shown that typical barometric errors like thermal divergences and fluctuations in the pressure due to changing weather conditions can be compensated by the topographic map information and the barometric error Kalman filter. The resulting height information is shown not only to be more reliable than height information provided by GPS. It also turns out that it leads to better attitude and thus better overall localization estimation accuracy due to the coupling of spatial orientations via the Direct Cosine Matrix. Results are presented both for artificially generated and field test data, where the user is moving by car. AU - Bevermeier, Maik AU - Walter, Oliver AU - Peschke, Sven AU - Haeb-Umbach, Reinhold ID - 11726 KW - altitude measurement unit KW - barometers KW - barometric altimeter KW - barometric error Kalman filter KW - barometric height estimation KW - direct cosine matrix KW - global positioning system KW - Global Positioning System KW - GPS device KW - height information KW - height measurement KW - inertial measurement unit KW - Kalman filters KW - loosely-coupled error state space Kalman filter KW - loosely-coupled Kalman-filter KW - map matching KW - robust information KW - robust location estimation KW - sensor fusion KW - topographic map information KW - vertical user position T2 - 7th Workshop on Positioning Navigation and Communication (WPNC 2010) TI - Barometric height estimation combined with map-matching in a loosely-coupled Kalman-filter ER - TY - JOUR AB - In this paper, we present a new technique for automatic speech recognition (ASR) in reverberant environments. Our approach is aimed at the enhancement of the logarithmic Mel power spectrum, which is computed at an intermediate stage to obtain the widely used Mel frequency cepstral coefficients (MFCCs). Given the reverberant logarithmic Mel power spectral coefficients (LMPSCs), a minimum mean square error estimate of the clean LMPSCs is computed by carrying out Bayesian inference. We employ switching linear dynamical models as an a priori model for the dynamics of the clean LMPSCs. Further, we derive a stochastic observation model which relates the clean to the reverberant LMPSCs through a simplified model of the room impulse response (RIR). This model requires only two parameters, namely RIR energy and reverberation time, which can be estimated from the captured microphone signal. The performance of the proposed enhancement technique is studied on the AURORA5 database and compared to that of constrained maximum-likelihood linear regression (CMLLR). It is shown by experimental results that our approach significantly outperforms CMLLR and that up to 80\% of the errors caused by the reverberation are recovered. In addition to the fact that the approach is compatible with the standard MFCC feature vectors, it leaves the ASR back-end unchanged. It is of moderate computational complexity and suitable for real time applications. AU - Krueger, Alexander AU - Haeb-Umbach, Reinhold ID - 11846 IS - 7 JF - IEEE Transactions on Audio, Speech, and Language Processing KW - ASR KW - AURORA5 database KW - automatic speech recognition KW - Bayesian inference KW - belief networks KW - CMLLR KW - computational complexity KW - constrained maximum likelihood linear regression KW - least mean squares methods KW - LMPSC computation KW - logarithmic Mel power spectrum KW - maximum likelihood estimation KW - Mel frequency cepstral coefficients KW - MFCC feature vectors KW - microphone signal KW - minimum mean square error estimation KW - model-based feature enhancement KW - regression analysis KW - reverberant speech recognition KW - reverberation KW - RIR energy KW - room impulse response KW - speech recognition KW - stochastic observation model KW - stochastic processes TI - Model-Based Feature Enhancement for Reverberant Speech Recognition VL - 18 ER - TY - CONF AB - Traditionally, ASR systems are based on hidden Markov models with Gaussian mixtures modelling the state-conditioned feature distribution. The inherent assumption of conditional independence, stating that a feature's likelihood solely depends on the current HMM state, makes the search computationally tractable, nevertheless has also been identified to be a major reason for the lack of robustness of such systems. Linear dynamic models have been proposed to overcome this weakness by employing a hidden dynamic state process underlying the observed features. Though performance of linear dynamic models on continuous speech/phone recognition tasks has been shown to be superior to that of equivalent static models, this approach still cannot compete with the established acoustic models. In this paper we consider the combination of hidden Markov models based on Gaussian mixture densities (GMM-HMMs) and linear dynamic models (LDMs) as the acoustic model for automatic speech recognition systems. In doing so, the individual strengths of both models, i.e. the modelling of long-term temporal dependencies by the GMM-HMM and the direct modelling of statistical dependencies between consecutive feature vectors by the LDM, are exploited. Phone classification experiments conducted on the TIMIT database indicate the prospective use of this approach for the application to continuous speech recognition. AU - Leutnant, Volker AU - Haeb-Umbach, Reinhold ID - 11857 T2 - 36. Deutsche Jahrestagung fuer Akustik (DAGA 2010) TI - Options for Modelling Temporal Statistical Dependencies in an Acoustic Model for ASR ER - TY - CONF AB - Linear dynamic models (LDMs) have been shown to be a viable alternative to hidden Markov models (HMMs) on small-vocabulary recognition tasks, such as phone classification. In this paper we investigate various statistical model combination approaches for a hybrid HMM-LDM recognizer, resulting in a phone classification performance that outperforms the best individual classifier. Further, we report on continuous speech recognition experiments on the AURORA4 corpus, where the model combination is carried out on wordgraph rescoring. While the hybrid system improves the HMM system in the case of monophone HMMs, the performance of the triphone HMM model could not be improved by monophone LDMs, asking for the need to introduce context-dependency also in the LDM model inventory. AU - Leutnant, Volker AU - Haeb-Umbach, Reinhold ID - 11858 T2 - Interspeech 2010 TI - On the Exploitation of Hidden Markov Models and Linear Dynamic Models in a Hybrid Decoder Architecture for Continuous Speech Recognition ER - TY - CONF AB - 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. AU - Raj, Bhiksha AU - Wilson, Kevin W. AU - Krueger, Alexander AU - Haeb-Umbach, Reinhold ID - 11887 T2 - Interspeech 2010 TI - Ungrounded Independent Non-Negative Factor Analysis ER - TY - CONF AB - 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. AU - Tran Vu, Dang Hai AU - Haeb-Umbach, Reinhold ID - 11912 T2 - International Workshop on Acoustic Echo and Noise Control (IWAENC 2010) TI - An EM Approach to Integrated Multichannel Speech Separation and Noise Suppression ER - TY - CONF AB - 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. AU - Tran Vu, Dang Hai AU - Haeb-Umbach, Reinhold ID - 11913 KW - array signal processing KW - blind source separation KW - blind speech separation KW - complex vector space KW - complex Watson distribution KW - directional statistics KW - expectation-maximisation algorithm KW - expectation maximization algorithm KW - Fourier transform KW - Fourier transforms KW - generalized sidelobe canceller KW - interference suppression KW - maximum signal-to-noise ratio beamformer KW - microphone signal KW - probabilistic model KW - spatial aliasing KW - spatial beamforming configuration KW - speech enhancement KW - statistical distributions T2 - IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010) TI - Blind speech separation employing directional statistics in an Expectation Maximization framework ER - TY - CONF AU - Dressler, Falko AU - Sommer, Christoph ID - 11992 SN - 9781424425181 T2 - 2010 IEEE 71st Vehicular Technology Conference TI - On the Impact of Human Driver Behavior on Intelligent Transportation Systems ER - TY - CONF AU - Sommer, Christoph AU - Krul, Robert AU - German, Reinhard AU - Dressler, Falko ID - 12057 SN - 9781424425181 T2 - 2010 IEEE 71st Vehicular Technology Conference TI - Emissions vs. Travel Time: Simulative Evaluation of the Environmental Impact of ITS ER - TY - JOUR AU - Sommer, Christoph AU - Schmidt, Armin AU - Chen, Yi AU - German, Reinhard AU - Koch, Wolfgang AU - Dressler, Falko ID - 12058 JF - Ad Hoc Networks SN - 1570-8705 TI - On the feasibility of UMTS-based Traffic Information Systems ER - TY - JOUR AU - Sommer, Christoph AU - Eckhoff, David AU - Dressler, Falko ID - 12059 JF - PIK - Praxis der Informationsverarbeitung und Kommunikation SN - 0930-5157 TI - Improving the Accuracy of IVC Simulation Using Crowd-sourced Geodata ER - TY - CHAP AU - Röwenstrunk, Daniel ED - Stadler, Peter ED - Veit, Joachim ID - 12943 SN - 9783110231144 T2 - Digitale Edition zwischen Experiment und Standardisierung TI - Die digitale Edition von Webers Klarinettenquintett – Ein Vergleich der Edirom-Versionen 2004 und 2008 ER - TY - CONF AU - Becker, Bernd AU - Hellebrand, Sybille AU - Polian, Ilia AU - Straube, Bernd AU - Vermeiren, Wolfgang AU - Wunderlich, Hans-Joachim ID - 12987 T2 - 40th Annual IEEE/IFIP International Conference on Dependable Systems and Networks Workshops (DSN-W'10) TI - Massive Statistical Process Variations - A Grand Challenge for Testing Nanoelectronic Circuits ER - TY - CHAP AU - Hüllermeier, Eyke AU - Hühn, J. ED - Koronacki, J. ED - Ras, Z.W. ED - Wierzchon, S.T. ED - Kacprzyk, J. ID - 15297 T2 - Advances in Machine Learning I: Dedicated to the Memory of Professor Ryszard S.Michalski TI - An Analysis of the FURIA algorithm for fuzzy rule induction VL - 262 ER - TY - CHAP AU - Fürnkranz, J. AU - Hüllermeier, Eyke ED - Fürnkranz, J. ED - Hüllermeier, Eyke ID - 15298 T2 - Preference Learning TI - Preference Learning: An Introduction ER - TY - JOUR AU - Bennedsen, Jens AU - Schulte, Carsten ID - 15676 IS - 2 JF - TOCE TI - BlueJ Visual Debugger for Learning the Execution of Object-Oriented Programs? VL - 10 ER - TY - CONF AU - Ehlert, Albrecht AU - Schulte, Carsten ID - 15677 T2 - ITiCSE TI - Comparison of OOP first and OOP later: first results regarding the role of comfort level ER - TY - GEN ED - Schulte, Carsten ED - Suhonen, Jarkko ID - 15678 TI - 10th Koli Calling International Conference on Computing Education Research, Koli Calling '10, Koli, Finland, October 28-31, 2010 ER - TY - GEN ED - Diethelm, Ira ED - Dörge, Christina ED - Hildebrandt, Claudia ED - Schulte, Carsten ID - 15679 TI - Didaktik der Informatik - Möglichkeiten empirischer Forschungsmethoden und Perspektiven der Fachdidaktik. 6. Workshop der GI-Fachgruppe "Didaktik der Informatik", 16. - 17. September 2010 in Oldenburg VL - P-168 ER - TY - CONF AU - Fober, T. AU - Mernberger, M. AU - Klebe, G. AU - Hüllermeier, Eyke ID - 15765 T2 - In Proceedings GCB-2010 German Conference on Bioinformatics Braunschweig, Germany TI - Efficient similarity retrieval for protein binding sites based on histogram comparison ER - TY - CONF AU - Dembczynski, K. AU - Waegeman, W. AU - Cheng, W. AU - Hüllermeier, Eyke ID - 15772 T2 - In Proceedings MLD-2010, 2nd International Workshop on Learning from Multi-Label Data, Haifa, Israel TI - On label dependence in multi-label classification ER - TY - JOUR AU - Schumacher, Stefan AU - Galbraith, Ian AU - Ruseckas, Arvydas AU - Turnbull, Graham A. AU - Samuel, Ifor D. W. ID - 15846 JF - Physical Review B SN - 1098-0121 TI - Dynamics of photoexcitation and stimulated optical emission in conjugated polymers: A multiscale quantum-chemistry and Maxwell-Bloch-equations approach ER - TY - CONF AU - Somorovsky, Juraj AU - Jensen, Meiko AU - Schwenk, Jörg ID - 15889 SN - 9781424481996 T2 - 2010 6th World Congress on Services TI - Streaming-Based Verification of XML Signatures in SOAP Messages ER - TY - CONF AB - Semi-analytical approaches for the description of dispersion in acoustic waveguides are based on root finding in a characteristic function. A mode-tracing algorithm helps to find all solutions of this problem by consecutively bracketing single roots. In this contribution we present a multistage and adaptive mode-tracing algorithm, which uses an adaptive step size for the prediction of consecutive solutions as well as an adaptive estimation of the search space around these predictions. Furthermore we present a validation stage to ensure the correlation between consecutive solutions alias waveguide modes. AU - Bause, Fabian AU - Rautenberg, Jens AU - Henning, Bernd ID - 14561 TI - An improved mode-tracing algorithm to compute dispersion curves of acoustic waveguides ER - TY - CONF AB - Die computergestützte Simulation geführter elastischer Wellen in ein- oder mehrschichtigen Wellenleitern ist in vielen Bereichen der akustischen Forschung ein essentielles Modellierungswerkzeug. Sie ermöglicht, auch in komplexen Systemen, eine Beschreibung der Wellenausbreitungsvorgänge, deren analytische Lösung zu aufwendig oder nicht durchführbar ist. Im ersten Abschnitt dieses Beitrags wird auf den halbanalytischen Solver bzw. die mathematische Formulierung des die Wellenausbreitung beschreibenden Problems eingegangen. Der zweite Abschnitt beinhaltet den mehrstufigen Aufbau eines Tracing-Algorithmus, welcher den Lösungsraum des Solvers adaptiv einschränkt, so dass Leistungsfähigkeit und Robustheit des Gesamtalgorithmus gestärkt werden. AU - Bause, Fabian AU - Rautenberg, Jens AU - Henning, Bernd ID - 14563 SN - 978-3-9808659-8-2 TI - Entwicklung und Parametrisierung eines Mode-Tracing Algorithmus für halbanalytische Solver ER - TY - CONF AB - In single transducer applications it would be desirable if the received electrical signal (echo signal) could be evaluated during transmitting. Thereby it is possible to measure very short distances. There are some solutions to realize this, but they have one limitation which prevents the usage in many industrial application. They need a calibration without an echo. The main problem is that this calibration has to be repeated whenever the process parameters like temperature or acoustic load change. This contribution presents an approach which uses a model identification based on different successive measurements which may include echoes. It is done by an impulse response decomposition followed by a principle component analysis. Results of measurements with sine burst excitation and a reflector in front of the transducer are presented. AU - Schröder, Andreas AU - Henning, Bernd ID - 14565 TI - Improved system identification for simultaneous transmitting and receiving in single transducer applications ER - TY - CONF AB - In der Ultraschallmesstechnik (Abstandsmessung, NDT) ist es zur Detektion naheliegender Reflektoren bzw. zur Erfassung der Medienrückwirkung (Wirkung der akustischen Last) notwendig, die Empfangssignale auszuwerten, noch während der Schallwandler mit dem Sendesignal angesteuert wird oder die Sendesignalenergie am Schallwandler noch nicht ausreichend abgeklungen ist. In diesem Beitrag wird eine Schaltung zur Kompensation des Sendesignals beschrieben, welche die unmittelbare Auswertung des Empfangssignals ermöglicht. AU - Schröder, Andreas AU - Henning, Bernd ID - 14566 SN - 978-3-9808659-8-2 TI - Interfaceschaltung für einen simultanen Sende- und Empfangsbetrieb mit einem einzelnen Ultraschallwandler ER - TY - GEN AU - Schröder, Andreas AU - Rautenberg, Jens AU - Behlen, H. AU - Ziegler, Horst AU - Unverzagt, Carsten AU - Gaugler, Ulrich AU - Glatter, T. AU - Horrn, R. AU - Kroemer, H. AU - Schmidt-Schoenian, Axel AU - Sonnenberg, Hans-Michael AU - Henning, Bernd ID - 14567 TI - Messrohr für einen Ultraschall-Durchflussmesser und Ultraschall Durchflussmesser ER - TY - CONF AU - Arens, Stephan AU - Domik, Gitta AU - Weise, Rainer AU - Fricke, Harald AU - Burchert, Wolfgang ID - 15000 T2 - Tagungsband der Deutschen Gesellschaft für physikalische Medizin TI - Weniger Sehen-mehr Verstehen: Größen-basierte und Textur-basierte Transferfunktionen zur Volumenvisualisierung von CT Daten der Koronargefäße VL - 41 ER - TY - CONF AU - Wette, Philip AU - Arens, Stephan AU - Elsner, Andreas AU - Domik, Gitta ID - 15035 T2 - Computer Graphics and Imaging TI - Extending the corkscrew algorithm to find bifurcations of vessels VL - 679 ER - TY - CONF AU - Peters, Sebastian AU - Kelm, Michael AU - Huber, Martin AU - Seifert, Sascha AU - Elsner, Andreas AU - Domik, Gitta ID - 15041 IS - 088 T2 - Proceedings of the 11th IASTED International Conference TI - Visual representations for supporting an ontology-based semantic navigation of medical volume data VL - 679 ER - TY - CONF AU - Fober, T. AU - Hüllermeier, Eyke ID - 15118 T2 - in Proceedings WCCI-2010, World Congress on Computational Intelligence, Barcelona, Spain TI - Similarity measures for protein structures based on fuzzy histogram comparison ER - TY - CONF AU - Senge, Robin AU - Hüllermeier, Eyke ID - 15119 T2 - in Proceedings WCCI-2010, World Congress on Computational Intelligence, Barcelona, Spain TI - Pattern trees for regression and fuzzy systems modeling ER - TY - CONF AU - Böttcher, Stefan AU - Hartel, Rita AU - Messinger, Christian ID - 15134 T2 - ICEIS 2010 - Proceedings of the 12th International Conference on Enterprise Information Systems TI - Queryable SEPA Message Compression by XML Schema Subtraction ER - TY - CONF AU - Böttcher, Stefan AU - Hartel, Rita AU - Krislin, Christoph ID - 15135 T2 - ICEIS 2010 - Proceedings of the 12th International Conference on Enterprise Information Systems TI - CluX - Clustering XML Sub-trees ER - TY - CONF AU - Böttcher, Stefan AU - Hartel, Rita AU - Messinger, Christian ID - 15136 SN - 1865-1348 T2 - Enterprise Information Systems - 12th International Conference, ICEIS 2010, Revised Selected Papers TI - Using XML Schema Subtraction to Compress Electronic Payment Messages ER - TY - CONF AU - Böttcher, Stefan AU - Hartel, Rita AU - Messinger, Christian ID - 15137 SN - 0302-9743 T2 - Database and XML Technologies - 7th International XML Database Symposium, XSym 2010 TI - Searchable Compression of Office Documents by XML Schema Subtraction ER - TY - JOUR AU - Lauter, Christian AU - Tröster, Thomas AU - Sköck-Hartmann, Britta AU - Gries, Thomas AU - Linke, Marcus ID - 15956 JF - VDI Konstruktion: Ingenieur-Werkstoffe TI - Höchstfeste Multimaterialsysteme aus Stahl und Faserverbundkunststoffen VL - 11-12/2010 ER -