@article{11898, abstract = {{Abstract In this paper we present an approach for synchronizing a wireless acoustic sensor network using a two-stage procedure. First the clock frequency and phase differences between pairs of nodes are estimated employing a two-way message exchange protocol. The estimates are further improved in a Kalman filter with a dedicated observation error model. In the second stage network-wide synchronization is achieved by means of a gossiping algorithm which estimates the average clock frequency and phase of the sensor nodes. These averages are viewed as frequency and phase of a virtual master clock, to which the clocks of the sensor nodes have to be adjusted. The amount of adjustment is computed in a specific control loop. While these steps are done in software, the actual sampling rate correction is carried out in hardware by using an adjustable frequency synthesizer. Experimental results obtained from hardware devices and software simulations of large scale networks are presented.}}, author = {{Schmalenstroeer, Joerg and Jebramcik, Patrick and Haeb-Umbach, Reinhold}}, issn = {{0165-1684}}, journal = {{Signal Processing}}, keywords = {{Gossip algorithm}}, pages = {{ -- }}, title = {{{A combined hardware-software approach for acoustic sensor network synchronization }}}, doi = {{http://dx.doi.org/10.1016/j.sigpro.2014.06.030}}, year = {{2014}}, } @inproceedings{11897, abstract = {{ "In this paper we present an approach for synchronizing the sampling clocks of distributed microphones over a wireless network. The proposed system uses a two stage procedure. It first employs a two-way message exchange algorithm to estimate the clock phase and frequency difference between two nodes and then uses a gossiping algorithmto estimate a virtual master clock, to which all sensor nodes synchronize. Simulation results are presented for networks of different topology and size, showing the effectiveness of our approach." }}, author = {{Schmalenstroeer, Joerg and Jebramcik, Patrick and Haeb-Umbach, Reinhold}}, booktitle = {{39th International Conference on Acoustics, Speech and Signal Processing (ICASSP 2014)}}, title = {{{A Gossiping Approach to Sampling Clock Synchronization in Wireless Acoustic Sensor Networks}}}, year = {{2014}}, } @inproceedings{11903, abstract = {{"Acoustic sensor network clock synchronization via time stamp exchange between the sensor nodes is not accurate enough for many acoustic signal processing tasks, such as speaker localization. To improve synchronization accuracy it has therefore been proposed to employ a Kalman Filter to obtain improved frequency deviation and phase offset estimates. The estimation requires a statistical model of the errors of the measurements obtained from the time stamp exchange algorithm. These errors are caused by random transmission delays and hardware effects and are thus network specific. In this contribution we develop an algorithm to estimate the parameters of the measurement error model alongside the Kalman filter based sampling clock synchronization, employing the Expectation Maximization algorithm. Simulation results demonstrate that the online estimation of the error model parameters leads only to a small degradation of the synchronization performance compared to a perfectly known observation error model."}}, author = {{Schmalenstroeer, Joerg and Zhao, Weile and Haeb-Umbach, Reinhold}}, booktitle = {{11. ITG Fachtagung Sprachkommunikation (ITG 2014)}}, title = {{{Online Observation Error Model Estimation for Acoustic Sensor Network Synchronization}}}, year = {{2014}}, } @article{48710, abstract = {{ Switching between tasks during practice can affect motor learning. This study tested whether switching feedback content has any effects on learning to perform golf putts without full visibility. 60 participants (44 men, 16 women; M age = 26.3 yr., SD = 6.6) practiced golf putts without seeing the ball movement. 30 of the participants were golfers with moderate expertise, and 30 were novices. They received feedback regarding their putts, either on the angle or on the distance in one of three feedback schedules: blocked, serial-blocked, or serial. Independent of the expertise level, learning was not affected by the feedback schedule. The strong linkage between the two components—direction and distance—may have prevented a sufficient level of contextual interference. }}, author = {{Krause, Daniel and Brüne, Alexander and Fritz, Susanne and Kramer, Pascal and Meisterjahn, Peter and Schneider, Michael and Sperber, Alena}}, issn = {{0031-5125}}, journal = {{Perceptual and Motor Skills}}, keywords = {{Sensory Systems, Experimental and Cognitive Psychology}}, number = {{2}}, pages = {{384--399}}, publisher = {{SAGE Publications}}, title = {{{Learning of a Golf Putting Task with Varying Contextual Interference Levels Induced by Feedback Schedule in Novices and Experts}}}, doi = {{10.2466/23.30.pms.118k17w3}}, volume = {{118}}, year = {{2014}}, } @article{48709, author = {{Krause, Daniel and Beck, Frieder and Agethen, Manfred and Blischke, Klaus}}, issn = {{0166-4328}}, journal = {{Behavioural Brain Research}}, keywords = {{Behavioral Neuroscience}}, pages = {{169--173}}, publisher = {{Elsevier BV}}, title = {{{Effect of catechol-O-methyltransferase-val158met-polymorphism on the automatization of motor skills – A post hoc view on an experimental data}}}, doi = {{10.1016/j.bbr.2014.02.037}}, volume = {{266}}, year = {{2014}}, } @article{49015, author = {{Moritz, Tilman}}, journal = {{Ancient Warfare Magazine}}, number = {{5}}, pages = {{9 -- 11}}, title = {{{A History of Victors? Josephus’ Account on the First Jewish War}}}, volume = {{8}}, year = {{2014}}, } @article{4958, author = {{Schneider, Martin and Eggert, Andreas}}, journal = {{Journal of Business Market Management}}, number = {{1}}, pages = {{312----328}}, title = {{{Embracing complex causality with the QCA method: An invitation}}}, year = {{2014}}, } @inbook{49220, author = {{Gretz, Daniela}}, booktitle = {{Fall − Fallgeschichte − Fallstudie. Theorie und Geschichte einer Wissensform}}, editor = {{Düwell, Susanne and Pethes, Nicolas}}, pages = {{ 274‒292}}, publisher = {{Campus}}, title = {{{Von »hässlichen Tazzelwürmern« und »heiteren Blumenketten«: Adalbert Stifters Abdias und Gottfried Kellers Ursula im Spannungsfeld von Fallgeschichte und Novelle}}}, year = {{2014}}, } @article{49283, abstract = {{Schwerpunkt des im Beitrag beschriebenen Forschungs- und Lehrprojektes ist das Lernen anhand von praxisnahen Fallbeispielen im Rahmen eines viertägigen Blockseminars in der universitären Lehrerinnen- und Lehrerbildung. Zur Überprüfung der Wirksamkeit des Seminarkonzepts wurde der Frage nachgegangen, ob Studierende der Blockveranstaltung, die eine Arbeit mit realitätsnahen Fallbeispielen beinhaltet, einen höheren Zuwachs an Wissensinhalten und Selbstwirksamkeit aufweisen als Studierende einer wöchentlichen Veranstaltung, die gleichermassen auf der Arbeit mit Fallbeispielen aufbaut. Die Studierenden wurden zu drei Messzeitpunkten getestet und befragt. Die Ergebnisse bestätigen, dass die Teilnehmenden aus der Blockveranstaltung über einen höheren Wissenszuwachs verfügten als die Studierenden der wöchentlichen Veranstaltung. Hinsichtlich der Selbstwirksamkeit bezüglich diagnostischer Kompetenzen ergaben sich keine signifikanten Unterschiede.}}, author = {{Hilkenmeier, Johanna and Sommer, Sabrina}}, issn = {{2296-9632}}, journal = {{BzL - Beiträge zur Lehrerinnen- und Lehrerbildung}}, number = {{1}}, pages = {{88--100}}, publisher = {{University of Bern}}, title = {{{Praxisnahe Fallarbeit – Block versus wöchentliches Seminar. Ein Vergleich zweier Veranstaltungsformate in der Lehrerin­nen- und Lehrerbildung}}}, doi = {{10.36950/bzl.32.2014.9626}}, volume = {{32}}, year = {{2014}}, } @inbook{47839, author = {{Fourné, Marcel and Stegemann, Kevin and Petersen, Dominique and Pohlmann, Norbert}}, booktitle = {{Information and Communication Technology}}, isbn = {{9783642550317}}, issn = {{0302-9743}}, publisher = {{Springer Berlin Heidelberg}}, title = {{{Aggregation of Network Protocol Data Near Its Source}}}, doi = {{10.1007/978-3-642-55032-4_49}}, year = {{2014}}, } @book{48006, editor = {{Jacke, Christoph and James, Martin and Montano, Ed}}, pages = {{132}}, title = {{{Music Journalism}}}, volume = {{4}}, year = {{2014}}, } @article{48088, author = {{Gerholz, Karl-Heinz and Losch, Simone}}, journal = {{Kölner Zeitschrift für Wirtschaft und Pädagogik}}, number = {{29}}, pages = {{79--111}}, title = {{{Service Learning und Persönlichkeitsentwicklung - Historische Hintergründe, didaktische Konzeption und empirische Ergebnisse aus den Wirtschaftswissenschaften}}}, volume = {{56}}, year = {{2014}}, } @inbook{46381, abstract = {{Exploratory Landscape Analysis is an effective and sophisticated approach to characterize the properties of continuous optimization problems. The overall aim is to exploit this knowledge to give recommendations of the individually best suited algorithm for unseen optimization problems. Recent research revealed a high potential of this methodology in this respect based on a set of well-defined, computable features which only requires a quite small sample of function evaluations. In this paper, new features based on the cell mapping concept are introduced and shown to improve the existing feature set in terms of predicting expert-designed high-level properties, such as the degree of multimodality or the global structure, for 2-dimensional single objective optimization problems.}}, author = {{Kerschke, Pascal and Preuss, Mike and Hernández, Carlos and Schütze, Oliver and Sun, Jian-Qiao and Grimme, Christian and Rudolph, Günter and Bischl, Bernd and Trautmann, Heike}}, booktitle = {{EVOLVE — A Bridge between Probability, Set Oriented Numerics, and Evolutionary Computation V}}, editor = {{Tantar, Alexandru-Adrian and Tantar, Emilia and Sun, Jian-Qiao and Zhang, Wei and Ding, Qian and Schütze, Oliver and Emmerich, Michael T M and Legrand, Pierrick and Del, Moral Pierre and Coello, Coello Carlos A}}, isbn = {{978-3-319-07493-1}}, pages = {{115–131}}, publisher = {{Springer International Publishing}}, title = {{{Cell Mapping Techniques for Exploratory Landscape Analysis}}}, doi = {{10.1007/978-3-319-07494-8_9}}, volume = {{288}}, year = {{2014}}, } @inbook{46382, abstract = {{The incorporation of expert knowledge into multiobjective optimization is an important issue which in this paper is reflected in terms of an aspiration set consisting of multiple reference points. The behaviour of the recently introduced evolutionary multiobjective algorithm AS-EMOA is analysed in detail and comparatively studied for bi-objective optimization problems w.r.t. R-NSGA2 and a respective variant. It will be shown that the averaged Hausdorff distance, integrated into AS-EMOA, is an efficient means to accurately approximate the desired aspiration set.}}, author = {{Rudolph, G and Schütze, O and Grimme, C and Trautmann, Heike}}, booktitle = {{EVOLVE — A Bridge between Probability, Set Oriented Numerics, and Evolutionary Computation V}}, editor = {{Tantar, A and Tantar, E and Sun, J and Zhang, W and Ding, Q and Schütze, O and Emmerich, M and Legrand, P and Del, Moral P and Coello, Coello CA}}, isbn = {{978-3-319-07493-1}}, pages = {{261–273}}, publisher = {{Springer International Publishing}}, title = {{{A Multiobjective Evolutionary Algorithm Guided by Averaged Hausdorff Distance to Aspiration Sets}}}, doi = {{10.1007/978-3-319-07494-8_18}}, volume = {{288}}, year = {{2014}}, } @inproceedings{46383, abstract = {{We propose an evolutionary multiobjective algorithm that approximates multiple reference points (the aspiration set) in a single run using the concept of the averaged Hausdorff distance.}}, author = {{Rudolph, Günter and Grimme, Christian and Schütze, Oliver and Trautmann, Heike}}, booktitle = {{Proceedings of the Learning and Intelligent OptimizatioN Conference (LION 8)}}, pages = {{153–156}}, publisher = {{Springer}}, title = {{{An Aspiration Set EMOA Based on Averaged Hausdorff Distances}}}, volume = {{8426}}, year = {{2014}}, } @inproceedings{46384, abstract = {{Multimodal optimization requires maintenance of a good search space coverage and approximation of several optima at the same time. We analyze two constitutive optimization algorithms and show that in many cases, a phase transition occurs at some point, so that either diversity collapses or optimization stagnates. But how to derive suitable stopping criteria for multimodal optimization? Experimental results indicate that an algorithm’s population contains sufficient information to estimate the point in time when several performance indicators reach their optimum. Thus, stopping criteria are formulated based on summary characteristics employing objective values and mutation strength.}}, author = {{Wessing, S and Preuss, M and Trautmann, Heike}}, booktitle = {{Proceedings of the Parallel Problem Solving from Nature — PPSN XIII}}, editor = {{Bartz-Beielstein, T and Branke, J and Filipic, B and Smith, J}}, pages = {{141–150}}, publisher = {{Springer}}, title = {{{Stopping Criteria for Multimodal Optimization}}}, doi = {{10.1007/978-3-319-10762-2_14}}, volume = {{8672}}, year = {{2014}}, } @book{48497, editor = {{Peterzelka, Dennis and Pfefferkorn, Julia and Corall, Niklas}}, isbn = {{3893084193}}, pages = {{298}}, publisher = {{Attempto Verlag}}, title = {{{Nietzsche, der Nihilismus und die Zukünftigen }}}, volume = {{Band 2}}, year = {{2014}}, } @article{47906, abstract = {{Purpose– In this viewpoint, the authors aim to discuss sustainability issues in university education. Balancing what we call the “Accounting View” and the “Sustainability View”, the authors illuminate the status of value relevance of sustainability information and question the depth of business students' processing of this information.Design/methodology/approach– The discussion was triggered by an experimental study on sustainability disclosure which revealed interesting findings related to the participating students' prior sustainability and accounting coursework. The authors start the viewpoint from these findings and contrast them with existing views on sustainability and accounting (education).Findings– The amount of accounting coursework was positively related to the probability of including sustainability information in future stock value estimates, whereas this applied only marginally to sustainability coursework. However, students with more sophisticated sustainability knowledge seemed to scrutinize the given sustainability information more deeply, while students with “pure” accounting knowledge seemed more willing to simply accept the information.Practical implications– The authors argue for advancements in the curriculum for business students that foster critical thinking and might prevent students (and thus potential future managers) from using sustainability information superficially. The authors caution against regarding sustainability issues as an “add-on” to existing courses and curricula and call for a combination of integrating sustainability issues in (core) business courses and offering standalone courses on sustainability management or CSR.Originality/value– Triggered by findings from an experimental study, the authors contrast different opinions on sustainability education of business students and offer a new viewpoint on the (supposed) value relevance of sustainability information for future business leaders.}}, author = {{Hahn, Rüdiger and Reimsbach, Daniel}}, issn = {{2041-2568}}, journal = {{Journal of Global Responsibility}}, keywords = {{Business and International Management}}, number = {{1}}, pages = {{55--67}}, publisher = {{Emerald}}, title = {{{Are we on track with sustainability literacy?}}}, doi = {{10.1108/jgr-12-2013-0016}}, volume = {{5}}, year = {{2014}}, } @article{47908, abstract = {{AbstractIn this paper, we propose a binomial approach to modeling sequential R&D investments. More specifically, we present a compound real options approach, simplifying the existing valuation methodology. Based upon the same set of assumptions as prior models, we show that the number of computational steps for valuing any compound option can be reduced to a single step. We demonstrate the applicability of our approach using the real-world example of valuing a new drug application. Overall, our work provides a heuristic framework for fostering the adoption of binomial compound option valuation techniques in R&D management.}}, author = {{Hauschild, Bastian and Reimsbach, Daniel}}, issn = {{2198-3402}}, journal = {{Business Research}}, keywords = {{Business, Management and Accounting (miscellaneous)}}, number = {{1}}, pages = {{39--59}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Modeling sequential R&D investments: a binomial compound option approach}}}, doi = {{10.1007/s40685-014-0017-5}}, volume = {{8}}, year = {{2014}}, } @book{48827, editor = {{Fabbianelli, Faustino and Luft, Sebastian}}, isbn = {{9783319017099}}, issn = {{0079-1350}}, publisher = {{Springer International Publishing}}, title = {{{Husserl und die klassische deutsche Philosophie}}}, doi = {{10.1007/978-3-319-01710-5}}, year = {{2014}}, }