@article{39947, author = {{Rösler, Margit}}, issn = {{0010-437X}}, journal = {{Compositio Mathematica}}, keywords = {{Algebra and Number Theory}}, number = {{03}}, pages = {{749--779}}, publisher = {{Wiley}}, title = {{{Bessel convolutions on matrix cones}}}, doi = {{10.1112/s0010437x06002594}}, volume = {{143}}, year = {{2007}}, } @misc{34571, abstract = {{Mit dem „philosophischen Diskurs der Moderne“ versucht Habermas, das Projekt der Aufklärung fortzuführen. Die Kritik an den von ihm so betitelten „Postmodernen“ (Heidegger, Bataille, Derrida, Foucault) dient ihm als Argumentationsgrundlage für die Verteidigung seiner kommunikativen Vernunft. In seiner Prüfung der vermeintlichen Absagen an das Rationale erklimmt seine Konsenstheorie das Siegertreppchen. Die Magisterarbeit diskutiert Habermas’ Kritik an Bataille und entwickelt eine Perspektive jenseits der Dichotomie von „Gut“ und „Böse“.}}, author = {{Alpsancar, Suzana}}, issn = {{1431-2395}}, title = {{{Habermas' Kritik an Bataille: Kommunikation des modernen Subjekts zwischen Zerissenheit und Souveränität}}}, volume = {{8}}, year = {{2007}}, } @article{14940, author = {{Hertle, Eva and Nordhoff, Daniel and Sloane, Peter F. E. and Sureth-Sloane, Caren}}, journal = {{Zeitschrift für Berufs- und Wirtschaftspädagogik}}, number = {{4}}, pages = {{597--611}}, title = {{{CHE-Rating: Beschäftigungsfähigkeit (Employability) deutscher Bachelor-Absolventen: Das Fatale daran ist das Fatale darin!}}}, volume = {{103}}, year = {{2007}}, } @article{14947, author = {{Sureth-Sloane, Caren and Langeleh, Dirk}}, journal = {{Schmalenbach Business Review}}, number = {{4}}, pages = {{310--339}}, title = {{{The Degree of Integrating Corporate and Capital Gains Tax into Income Tax and Its Impact on Investment Decisions}}}, volume = {{59}}, year = {{2007}}, } @phdthesis{41368, author = {{Seifert, Andreas}}, publisher = {{Waxmann}}, title = {{{Gefährlichkeitseinschätzung von Autofahrern, Motorradfahrern und Radfahrern. Psychometrische Modellierung der Prognose durch verschiedene Gefahrenaspekte und ihr Beitrag zur Klärung von Unterschieden zwischen jungen und nicht-jungen Verkehrsteilnehmern.}}}, volume = {{10}}, year = {{2007}}, } @inbook{17280, abstract = {{Many classical approaches developed so far for learning in a human-robot interaction setting have focussed on rather low level motor learning by imitation. Some doubts, however, have been casted on whether with this approach higher level functioning will be achieved. Higher level processes include, for example, the cognitive capability to assign meaning to actions in order to learn from the tutor. Such capabilities involve that an agent not only needs to be able to mimic the motoric movement of the action performed by the tutor. Rather, it understands the constraints, the means and the goal(s) of an action in the course of its learning process. Further support for this hypothesis comes from parent-infant instructions where it has been observed that parents are very sensitive and adaptive tutors who modify their behavior to the cognitive needs of their infant. Based on these insights, we have started our research agenda on analyzing and modeling learning in a communicative situation by analyzing parent-infant instruction scenarios with automatic methods. Results confirm the well known observation that parents modify their behavior when interacting with their infant. We assume that these modifications do not only serve to keep the infant’s attention but do indeed help the infant to understand the actual goal of an action including relevant information such as constraints and means by enabling it to structure the action into smaller, meaningful chunks. We were able to determine first objective measurements from video as well as audio streams that can serve as cues for this information in order to facilitate learning of actions.}}, author = {{Wrede, Britta and Rohlfing, Katharina and Spexard, Thorsten P. and Fritsch, Jannik}}, booktitle = {{Humanoid Robots, Human-like Machines}}, editor = {{Hackel, Matthias}}, isbn = {{978-3-902613-07-3}}, pages = {{601--612}}, publisher = {{ARS}}, title = {{{Towards tutoring an interactive robot}}}, doi = {{10.5772/4825}}, year = {{2007}}, } @inproceedings{17279, abstract = {{An open question in imitating actions by infants and robots is how they know ‘‘what to imitate.’’ We suggest that parental modifications in their actions, called motionese, can help infants and robots to detect the meaningful structure of the actions. Parents tend to modify their infant-directed actions, e.g., put longer pauses between actions and exaggerate actions, which are assumed to help infants to understand the meaning and the structure of the actions. To investigate how such modifications contribute to the infants’ understanding of the actions, we analyzed parental actions from an infant-like viewpoint by applying a model of saliency-based visual attention. Our model of an infant-like viewpoint does not suppose any a priori knowledge about actions or objects used in the actions, or any specific capability to detect a parent’s face or his/her hands. Instead, it is able to detect and gaze at salient locations, which are standing out from the surroundings because of the primitive visual features, in a scene. The model thus demonstrates what low-level aspects of parental actions are highlighted in their action sequences and could attract the attention of young infants and robots. Our quantitative analysis revealed that motionese can help them (1) to receive immediate social feedback on the actions, (2) to detect the initial and goal states of the actions, and (3) to look at the static features of the objects used in the actions. We discuss these results addressing the issue of ‘‘what to imitate.’’}}, author = {{Nagai, Yukie and Rohlfing, Katharina}}, booktitle = {{The 4th International Symposium on Imitation in Animals and Artifacts}}, title = {{{Can Motionese Tell Infants and Robots "What to Imitate"?}}}, year = {{2007}}, } @misc{40337, author = {{Wallmeier, Nadine}}, booktitle = {{Das Mittelalter. Perspektiven mediävistischer Forschung}}, pages = {{154--155}}, title = {{{Mittelalterliche Novellistik im europäischen Kontext. Kulturwissenschaftliche Perspektiven. Hrsg. von Mark Chinca, Timo Reuvekamp-Felber und Christopher Young. Berlin: Erich Schmidt Verlag 2006}}}, volume = {{128}}, year = {{2007}}, } @inbook{40432, author = {{Grotjahn, Rebecca}}, booktitle = {{Mozart im Blick: Inszenierungen, Bilder und Diskurse}}, editor = {{Kreutziger-Herr, Annette}}, isbn = {{978-3412200039}}, pages = {{194–208}}, publisher = {{Böhlau}}, title = {{{Paminas Einweihung. Menschenbild und Geschlechterverhältnisse in der Zauberflöte}}}, volume = {{4}}, year = {{2007}}, } @article{40436, author = {{Grotjahn, Rebecca}}, journal = {{ad notam. Jahrbuch der Hochschule für Musik Detmold}}, number = {{6 | 7}}, pages = {{18–27}}, title = {{{Krisenjahre eines Komponisten: Brahms in Detmold 1857–1859}}}, year = {{2007}}, } @inproceedings{40873, abstract = {{In this paper we analyze a turbo equalization scheme that combines maximum a posteriori probability (MAP) equalization and turbo decoding. Our aim is to optimize the turbo equalizer in order to approach the information capacity limit for channels with severe inter-symbol interference (ISI). For this purpose, we perform an extensive search for turbo codes that give an SNR-BER performance closest to the channel information capacity limit. Our results show that the optimized turbo equalizer can approach the information capacity limit to within 0.7 dB. We also optimize the turbo equalizer in terms of the minimum number of required turbo decoding iterations. Our results show that a turbo decoder within a turbo equalization loop requires only a small number of iterations. Finally, our analysis reveals that when there are turbo codes with similar extrinsic information transfer characteristics, the computational complexity can be reduced by choosing the code with the smallest constraint length with no loss in SNR-BER performance.}}, author = {{Trajkovic, Vladimir D. and Fu, Minyue and Schreier, Peter J.}}, booktitle = {{Proc.\ Australasian Telecomm. Netw.\ Applic.\ Conf.}}, pages = {{480–484}}, title = {{{Near-capacity turbo equalization using optimized turbo codes}}}, doi = {{10.1109/ATNAC.2007.4665276}}, year = {{2007}}, } @inproceedings{40874, abstract = {{We consider the assessment of multivariate association between two complex random vectors. For complex data, there are three types of correlation coefficients, which account for rotational, reflectional, and total (i.e., rotational and reflectional) dependencies. We define and analyze these three types for different correlation coefficients, based on two popular correlation analysis techniques: canonical correlation analysis and multivariate linear regression (also known as half-canonical correlation analysis).}}, author = {{Schreier, Peter J.}}, booktitle = {{Proc. 41st\ Asilomar Conf.\ Signals Syst.\ Computers}}, pages = {{577–581}}, title = {{{Correlation Coefficients for Complex Random Vectors}}}, doi = {{10.1109/ACSSC.2007.4487279}}, year = {{2007}}, } @inproceedings{40877, author = {{García-Naya, J. A. and Fernández-Caramés, T. M. and Pérez-Iglesias, H. J. and González-López, M. and Castedo, L. and Ramírez, D. and Santamaría, I. and Pérez, J. and Vía, J. and Torres-Royo, J. M.}}, booktitle = {{Proc. IST Mobile $&$ Wireless Comms. Summit}}, title = {{{Performance of STBC transmissions with real data}}}, doi = {{10.1109/ISTMWC.2007.4299296}}, year = {{2007}}, } @inproceedings{40875, author = {{Wahlberg, Patrik and Schreier, Peter J.}}, booktitle = {{Proc. 41st\ Asilomar Conf.\ Signals Syst.\ Computers}}, pages = {{1093–1097}}, title = {{{Frequency-domain properties of locally stationary improper second-order stochastic processes}}}, doi = {{10.1109/ACSSC.2007.4487391}}, year = {{2007}}, } @article{40878, author = {{Ping, Li and Guo, Qinghua and Tong, Jun}}, journal = {{IEEE Wireless Comm.}}, number = {{3}}, pages = {{18–24}}, title = {{{The OFDM-IDMA approach to wireless communication systems}}}, doi = {{10.1109/MWC.2007.386608}}, volume = {{14}}, year = {{2007}}, } @inproceedings{40876, author = {{Trajkovic, Vladimir D. and Fu, Minyue and Schreier, Peter J.}}, booktitle = {{Proc. 4th\ Int.\ Symp.\ Wireless Comm.\ Syst.}}, pages = {{153–157}}, title = {{{Turbo Equalization With Irregular Turbo Codes}}}, doi = {{10.1109/ISWCS.2007.4392320}}, year = {{2007}}, } @inproceedings{40881, abstract = {{Wigner’s theorem states that there exists no bilinear time-frequency distribution (TFD) that has correct marginals and is nonnegative everywhere. This means that any attempt to interpret a bilinear TFD as an energy or power distribution must be fraught with problems. In this paper, an alternative perspective is proposed, which allows a local interpretation at a point in the time-frequency plane. This approach is based on analyzing the properties of a chirping ellipse that, at a given time instant, gives the best local approximation of the signal from a given frequency. This chirping ellipse is described in terms of its mean shape, orientation, and direction of polarization (counterclockwise or clockwise). A time-frequency coherence measures the quality of the approximation that this ellipse presents. The ellipse parameters and the time-frequency coherence can be expressed in terms of the Rihaczek TFD}}, author = {{Schreier, Peter J.}}, booktitle = {{Proc.\ IEEE Int.\ Conf.\ Acoustics, Speech and Signal Process.}}, pages = {{1133–1136}}, title = {{{A New Interpretation of Bilinear Time-Frequency Distributions}}}, doi = {{10.1109/ICASSP.2007.366884}}, volume = {{3}}, year = {{2007}}, } @inproceedings{40880, abstract = {{We analyze the spectral measure and complementary spectral measure for strongly harmonizable cyclostationary and almost cyclostationary multidimensional complex improper processes. We show that the off-diagonal components of the spectral measure are absolutely continuous with respect to the diagonal component, which is a generalization of a result for scalar processes. For scalar almost cyclostationary processes, we derive representation formulas for the complementary spectral measure and the off-diagonal components of the spectral measure, in terms of the diagonal component of the spectral measure. These results are similar to the cyclostationary case, with some modifications concerning the off-diagonal components of the complementary spectral measure.}}, author = {{Wahlberg, Patrik and Schreier, Peter J.}}, booktitle = {{Proc.\ IEEE Int.\ Symp.\ Inform.\ Theory}}, pages = {{971–975}}, title = {{{Spectra of multidimensional complex improper (almost) cyclostationary processes}}}, doi = {{10.1109/ISIT.2007.4557350}}, year = {{2007}}, } @article{40879, author = {{Spurbeck, Mark S. and Schreier, Peter J.}}, journal = {{Signal Process.}}, number = {{6}}, pages = {{1179–1187}}, publisher = {{Elsevier North-Holland, Inc.}}, title = {{{Causal Wiener filter banks for periodically correlated time series}}}, doi = {{10.1016/j.sigpro.2006.10.008}}, volume = {{87}}, year = {{2007}}, } @article{41281, author = {{Bauer, Matthias and Müller, Sonja and Kickelbick, Guido and Bertagnolli, Helmut}}, issn = {{1144-0546}}, journal = {{New Journal of Chemistry}}, keywords = {{Materials Chemistry, General Chemistry, Catalysis}}, number = {{11}}, publisher = {{Royal Society of Chemistry (RSC)}}, title = {{{The structures of the precursor Hf(OnBu)4 and its modification in solution: EXAFS-investigation in combination with XANES- and IR-spectroscopy}}}, doi = {{10.1039/b707079a}}, volume = {{31}}, year = {{2007}}, }