@inbook{30785, author = {{Kullmann, Harry}}, booktitle = {{Kollegialität und Kooperation in der Schule. Theoretische Konzepte und empirische Befunde}}, editor = {{Baum, Elisabeth and Idel, Till-Sebastian and Ullrich, Heiner}}, pages = {{77–90}}, publisher = {{Springer VS}}, title = {{{Erwünschte Charakteristika von Partner/-innen für Lehrerkooperation. Eine empirische Analyse anhand der Selbstbestimmungstheorie der Motivation}}}, doi = {{10.1007/978-3-531-94284-1_5}}, volume = {{51}}, year = {{2012}}, } @inbook{30757, author = {{Hartinger, Andreas and Grygier, Patricia and Ziegler, Florian and Kullmann, Harry}}, booktitle = {{Bedingungen des Lehrens und Lernens in der Grundschule. Bilanz und Perspektiven}}, editor = {{Hellmich, Frank and Förster, Sabrina and Hoya, Fabian}}, pages = {{229–232}}, publisher = {{Springer VS}}, title = {{{Der Modellversuch "GribS" - erste Befunde}}}, doi = {{10.1007/978-3-531-19137-9}}, year = {{2012}}, } @inbook{30989, author = {{Kullmann, Harry}}, booktitle = {{Verstehen und Kultur. Mentale Modelle und kulturelle Prägungen}}, editor = {{Wiater, Werner and Manschke, Doris}}, isbn = {{978-3-531-18069-4}}, pages = {{141–165}}, publisher = {{Springer VS}}, title = {{{Verstehe ich Sie richtig? – Informelle Kommunikation via Internet und E-Mail als Beitrag zur Professionalität von Lehrkräften}}}, year = {{2012}}, } @phdthesis{28357, abstract = {{This dissertation explores learner beliefs about pronunciation and their interaction with identity negotiations in a study-abroad context. Current research on studying abroad has experienced a wave of interest in learner-centered questions, gradually moving away from the narrow focus on students’ linguistic development. In particular, the effects of study abroad on learner identities have attracted attention, revealing the impact of the dispositions of individuals, as well as of interlocutors, on the language learning process. The realm of speaking, especially with regard to pronunciation research, however, has hardly benefited from this interest in the individual perspectives of sojourners. Existing studies merely measure the extent to which learners appropriate native-like accents, resulting in partly inconsistent findings with limited insight into individual learning processes and factors. I thus adopt a different focus by qualitatively investigating the interplay between sojourners’ beliefs about pronunciation and their identity constructions and negotiations. My research is based on five case studies of Canadian learners of German. Each research subject has attended a German university for one or two semesters. In applying narrative inquiry as a research tool for both the within- and cross-case analyses, I investigate participants’ accounts in interviews and e-journals, as conducted at different stages throughout the first sojourn term. Poststructuralist-constructivist conceptualizations of learner identities and beliefs guide the data analysis and interpretation. The results of the holistic and categorical content analyses give insight into the intricate relationship between beliefs about pronunciation and learners’ identity work. In their narratives, learners appear to actively use pronunciation as a tool to construct identity facets in correspondence to specific communities of practice, giving meaning to their investment in the sojourn experience. This process of mediating between different identity constructions appears to be highly complex and partially conflict-laden. The participants’ beliefs and reported learning behaviours are interconnected with their definitions of learning goals, which draw on native-speaker ideals to different extents and with varying results. These orientations are in turn related to the subjects’ degrees of critical language awareness, the latter a factor that appears to play a vital role in shaping the ability of learners to take advantage of learning opportunities. In assessing participants’ learning objectives and their readiness to reflect upon their beliefs and orientations, my study also sheds light on the influence of different learning factor constellations on intercultural learning. The results indicate that unidirectional cause-and-effect relationships cannot be drawn between learners’ beliefs about pronunciation and their abilities to approach their roles as intercultural speakers in sojourn environments. My study rather underlines the importance of illuminating individual learning experiences in their idiosyncrasies and complexities, which may lead to a stronger consideration of learners’ subjective stances in both research and teaching practice. The findings of my study suggest that the primary way that language pedagogy can thus foster the ability to engage in intercultural encounters is by helping learners to become aware of their subjective stances, their self-constructions, and the influence of those on the learning process. Therefore, developing the ability and willingness to critically reflect is crucial, especially with regard to pronunciation. In illuminating the intricate nature of learner beliefs and their influence on the learning process, my study demonstrates the importance of qualitative, emic research into the acquisition of L2 pronunciation.}}, author = {{Müller, Mareike}}, publisher = {{University of Waterloo}}, title = {{{Learners' identity negotiations and beliefs about pronunciation in study abroad contexts}}}, year = {{2011}}, } @techreport{2734, author = {{Gries, Thomas and Redlin, Margarete}}, pages = {{24}}, publisher = {{Paderborn University, CIE Center for International Economics}}, title = {{{Trade Openness and Economic Growth: A Panel Causality Analysis}}}, volume = {{2011-06}}, year = {{2011}}, } @inproceedings{1122, abstract = {{Within this paper, we will describe a new approach to customer interaction management by integrating social networking channels into existing business processes. Until now, contact center agents still read these messages and forward them to the persons in charge of customer’s in the company. But with the introduction of Web 2.0 and social networking clients are more likely to communicate with the companies via Facebook and Twitter instead of filling data in contact forms or sending e-mail requests. In order to maintain an active communication with international clients via social media, the multilingual consumer contacts have to be categorized and then automatically assigned to the corresponding business processes (e.g. technicalservice, shipping, marketing, and accounting). This allows the company to follow general trends in customer opinions on the Internet, but also record two-sided communication for customer relationship management.}}, author = {{Geierhos, Michaela and Lee, Yeong Su and Bargel, Matthias}}, booktitle = {{Multilingual Resources, Multilingual Applications: Proceedings of the Conference of the German Society for Computational Linguistics and Language Technology (GSCL) 2011}}, editor = {{Hedeland, Hanna and Schmidt, Thomas and Wörner, Kai}}, issn = {{0176-599X}}, keywords = {{Classification of Multilingual Customer Contacts, Contact Center Application Support, Social Media Business Integration}}, location = {{Hamburg, Germany}}, pages = {{219--222}}, publisher = {{University of Hamburg}}, title = {{{Processing Multilingual Customer Contacts via Social Media}}}, volume = {{96}}, year = {{2011}}, } @inproceedings{1123, abstract = {{Within this paper, we describe the special requirements of a semantic annotation scheme used for biographical event extraction in the framework of the Europeancollaborative research project Biographe. This annotationscheme supports interlingual search for people due to its multilingual support covering four languages such as English, German, French and Dutch.}}, author = {{Geierhos, Michaela and Bouraoui, Jean-Leon and Watrin, Patrick}}, booktitle = {{Multilingual Resources, Multilingual Applications. Proceedings of the Conference of the German Society for Computational Linguistics and Language Technology (GSCL) 2011}}, editor = {{Hedeland, Hanna and Schmidt, Thomas and Wörner, Kai}}, issn = {{0176-599X}}, keywords = {{Biographical Event Extraction for Interlingual People Search, Semantic Annotation Scheme}}, location = {{Hamburg, Germany}}, pages = {{45--50}}, publisher = {{University of Hamburg}}, title = {{{Towards Multilingual Biographical Event Extraction}}}, volume = {{96}}, year = {{2011}}, } @inproceedings{5684, author = {{Lang, Fabian and Schryen, Guido and Fink, Andreas}}, booktitle = {{Proceedings of the 2011 International Conference on Information Systems (ICIS 2011)}}, title = {{{Automated Negotiations Under Uncertain Preferences}}}, year = {{2011}}, } @inproceedings{5689, author = {{Bodenstein, Christian and Schryen, Guido and Neumann, Dirk}}, booktitle = {{Proceedings of the 19th European Conference on Information Systems (ECIS 2011)}}, title = {{{Reducing Datacenter Energy Usage through Efficient Job Allocation}}}, year = {{2011}}, } @inproceedings{5581, author = {{Wex, Felix and Schryen, Guido and Neumann, Dirk}}, booktitle = {{Proceedings of the 8th International Conference on Information Systems for Crisis Response and Management (ISCRAM 2011)}}, title = {{{Intelligent Decision Support for Centralized Coordination during Emergency Response}}}, year = {{2011}}, } @inproceedings{5619, author = {{Schryen, Guido and Volkamer, Melanie and Ries, Sebastian}}, booktitle = {{Proceedings of the 26th Annual ACM Symposium on Applied Computing}}, title = {{{A formal approach towards measuring trust in distributed systems}}}, year = {{2011}}, } @article{5640, author = {{Schryen, Guido}}, journal = {{Communications of the ACM (CACM)}}, number = {{No. 5}}, pages = {{130--139}}, publisher = {{Association for Computing Machinery}}, title = {{{Is open source security a myth? What do vulnerability and patch data say?}}}, volume = {{Vol. 54}}, year = {{2011}}, } @inproceedings{5641, author = {{Schryen, Guido}}, booktitle = {{IS Capabilities Change, and IS Innovation, Proceedings of the 19th European Conference on Information Systems (ECIS 2011), Helsinki}}, title = {{{Seeking the VALUE in IS Business Value Research - An Agenda for investigating Synergies Between Socio-organizational Change, IS Capabilities Change, and IS Innovation}}}, year = {{2011}}, } @inproceedings{11721, author = {{Bevermeier, Maik and Flanke, Stephan and Haeb-Umbach, Reinhold and Stehr, Jan}}, booktitle = {{International Workshop on Intelligent Transportation (WIT 2011)}}, title = {{{A Platform for efficient Supply Chain Management Support in Logistics}}}, year = {{2011}}, } @inproceedings{11845, abstract = {{The paper proposes a modification of the standard maximum a posteriori (MAP) method for the estimation of the parameters of a Gaussian process for cases where the process is superposed by additive Gaussian observation errors of known variance. Simulations on artificially generated data demonstrate the superiority of the proposed method. While reducing to the ordinary MAP approach in the absence of observation noise, the improvement becomes the more pronounced the larger the variance of the observation noise. The method is further extended to track the parameters in case of non-stationary Gaussian processes.}}, author = {{Krueger, Alexander and Haeb-Umbach, Reinhold}}, booktitle = {{IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2011)}}, keywords = {{Gaussian processes, MAP-based estimation, maximum a posteriori method, maximum likelihood estimation, nonstationary Gaussian processes}}, pages = {{3596--3599}}, title = {{{MAP-based estimation of the parameters of non-stationary Gaussian processes from noisy observations}}}, doi = {{10.1109/ICASSP.2011.5946256}}, year = {{2011}}, } @article{11850, abstract = {{In this paper, we present a novel blocking matrix and fixed beamformer design for a generalized sidelobe canceler for speech enhancement in a reverberant enclosure. They are based on a new method for estimating the acoustical transfer function ratios in the presence of stationary noise. The estimation method relies on solving a generalized eigenvalue problem in each frequency bin. An adaptive eigenvector tracking utilizing the power iteration method is employed and shown to achieve a high convergence speed. Simulation results demonstrate that the proposed beamformer leads to better noise and interference reduction and reduced speech distortions compared to other blocking matrix designs from the literature.}}, author = {{Krueger, Alexander and Warsitz, Ernst and Haeb-Umbach, Reinhold}}, journal = {{IEEE Transactions on Audio, Speech, and Language Processing}}, keywords = {{acoustical transfer function ratio, adaptive eigenvector tracking, array signal processing, beamformer design, blocking matrix, eigenvalues and eigenfunctions, eigenvector-based transfer function ratios estimation, generalized sidelobe canceler, interference reduction, iterative methods, power iteration method, reduced speech distortions, reverberant enclosure, reverberation, speech enhancement, stationary noise}}, number = {{1}}, pages = {{206--219}}, title = {{{Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation}}}, doi = {{10.1109/TASL.2010.2047324}}, volume = {{19}}, year = {{2011}}, } @inproceedings{11866, abstract = {{In this work, a splitting and weighting scheme that allows for splitting a Gaussian density into a Gaussian mixture density (GMM) is extended to allow the mixture components to be arranged along arbitrary directions. The parameters of the Gaussian mixture are chosen such that the GMM and the original Gaussian still exhibit equal central moments up to an order of four. The resulting mixtures{\rq} covariances will have eigenvalues that are smaller than those of the covariance of the original distribution, which is a desirable property in the context of non-linear state estimation, since the underlying assumptions of the extended K ALMAN filter are better justified in this case. Application to speech feature enhancement in the context of noise-robust automatic speech recognition reveals the beneficial properties of the proposed approach in terms of a reduced word error rate on the Aurora 2 recognition task.}}, author = {{Leutnant, Volker and Krueger, Alexander and Haeb-Umbach, Reinhold}}, booktitle = {{Interspeech 2011}}, title = {{{A versatile Gaussian splitting approach to non-linear state estimation and its application to noise-robust ASR}}}, year = {{2011}}, } @inproceedings{11911, abstract = {{In this paper we address the problem of initial seed selection for frequency domain iterative blind speech separation (BSS) algorithms. The derivation of the seeding algorithm is guided by the goal to select samples which are likely to be caused by source activity and not by noise and at the same time originate from different sources. The proposed algorithm has moderate computational complexity and finds better seed values than alternative schemes, as is demonstrated by experiments on the database of the SiSEC2010 challenge.}}, author = {{Tran Vu, Dang Hai and Haeb-Umbach, Reinhold}}, booktitle = {{Interspeech 2011}}, title = {{{On Initial Seed Selection for Frequency Domain Blind Speech Separation}}}, year = {{2011}}, } @book{11945, editor = {{Kolossa, Dorothea and Haeb-Umbach, Reinhold}}, publisher = {{Springer}}, title = {{{Robust Speech Recognition of Uncertain or Missing Data --- Theory and Applications}}}, year = {{2011}}, } @misc{35050, author = {{Süßmann, Johannes}}, booktitle = {{Bildung. Ziele und Formen, Traditionen und Systeme, Medien und Akteure}}, editor = {{Maaser, Michael and Walther, Gerrit}}, isbn = {{978-3-476-02098-7}}, pages = {{242–247}}, publisher = {{J.B. Metzler}}, title = {{{[Art.] Verwaltung}}}, doi = {{https://doi.org/10.1007/978-3-476-00131-3_54}}, year = {{2011}}, }