@article{3343, abstract = {{In this paper we consider an extended variant of query learning where the hidden concept is embedded in some Boolean circuit. This additional processing layer modifies query arguments and answers by fixed transformation functions which are known to the learner. For this scenario, we provide a characterization of the solution space and an ordering on it. We give a compact representation of the minimal and maximal solutions as quantified Boolean formulas and we adapt the original algorithms for exact learning of specific classes of propositional formulas.}}, author = {{Bubeck, Uwe and Kleine Büning, Hans}}, issn = {{0004-3702}}, journal = {{Artificial Intelligence}}, keywords = {{Query learning, Propositional logic}}, pages = {{246 -- 257}}, publisher = {{Elsevier}}, title = {{{Learning Boolean Specifications}}}, doi = {{10.1016/j.artint.2015.09.003}}, year = {{2015}}, } @misc{3364, author = {{Knorr, Christoph}}, publisher = {{Universität Paderborn}}, title = {{{Evaluation von Bildverarbeitungsalgorithmen in heterogenen Rechenknoten}}}, year = {{2015}}, } @inproceedings{3437, author = {{Klör, Benjamin and Bräuer, Sebastian and Beverungen, Daniel and Monhof, Markus}}, booktitle = {{Proceedings of the 12. International Conference on Wirtschaftsinformatik 2015 (WI 2015)}}, location = {{Osnabrück}}, pages = {{1038----1054}}, title = {{{A Domain-Specific Modeling Language for Electric Vehicle Batteries}}}, year = {{2015}}, } @inproceedings{3438, author = {{Monhof, Markus and Beverungen, Daniel and Klör, Benjamin and Bräuer, Sebastian}}, booktitle = {{New Horizons in Design Science: Broadening the Research Agenda}}, editor = {{Donnellan, Brian and Helfert, Markus and Kenneally, Jim and VanderMeer, Debra and Rothenberger, Marcus and Winter, Robert}}, pages = {{447----454}}, title = {{{Extending Battery Management Systems for Making Informed Decisions on Battery Reuse}}}, doi = {{10.1007/978-3-319-18714-3_37}}, year = {{2015}}, } @article{3556, author = {{Euler, Dieter and Sloane, Peter F. E.}}, journal = {{Zeitschrift für Berufs-und Wirtschaftspädagogik}}, number = {{1}}, pages = {{1----10}}, title = {{{Neue Bildungslandschaften - Kommunales Bildungsmanagement als Zukunftsaufgabe}}}, volume = {{111}}, year = {{2015}}, } @inbook{3592, author = {{Fischer, Christoph and Harteis, Christian}}, booktitle = {{Informelles Lernen, Annäherungen - Problemlagen - Forschungsbefunde}}, editor = {{Niedermair, Gerhard}}, isbn = {{978-3-99033-403-4}}, keywords = {{Epistemische Überzeugungen, learning culture}}, pages = {{107----123}}, publisher = {{Trauner}}, title = {{{Die Bedeutung subjektiver Sichtweisen für die Implementierung betrieblicher Lernkultur}}}, year = {{2015}}, } @inbook{3692, author = {{Harteis, Christian}}, booktitle = {{Konzepte und Ergebnisse ausgewählter Forschungsfelder der beruflichen Bildung}}, editor = {{Rausch, Andreas and Warwas, Julia and Seifried, Jürgen and Wuttke, Eveline}}, pages = {{157--174}}, publisher = {{Schneider Hohengehren}}, title = {{{Bedingungsfaktoren beruflichen Könnens}}}, year = {{2015}}, } @inproceedings{3782, author = {{Kiesel, Johannes and Al-Khatib, Khalid and Hagen, Matthias and Stein, Benno}}, booktitle = {{Proceedings of the 2nd Workshop on Argumentation Mining}}, pages = {{35----38}}, title = {{{A Shared Task on Argumentation Mining in Newspaper Editorials}}}, doi = {{10.3115/v1/W15-0505}}, year = {{2015}}, } @inproceedings{3808, author = {{Kiesel, Johannes and Al-Khatib, Khalid and Hagen, Matthias and Stein, Benno}}, booktitle = {{Proceedings of the 2nd Workshop on Argumentation Mining}}, pages = {{35----38}}, title = {{{A Shared Task on Argumentation Mining in Newspaper Editorials}}}, doi = {{10.3115/v1/W15-0505}}, year = {{2015}}, } @inproceedings{3815, author = {{Wachsmuth, Henning and Kiesel, Johannes and Stein, Benno}}, booktitle = {{Proceedings of the 2015 Conference on Empirical Methods in Natural Language Processing}}, editor = {{Tsujii, Junichi and Hajic, Jan}}, isbn = {{978-3-319-25740-2}}, pages = {{601--611}}, title = {{{Sentiment Flow - A General Model of Web Review Argumentation}}}, doi = {{10.18653/v1/D15-1072}}, year = {{2015}}, } @article{3845, abstract = {{The device principle of a prism-based on-chip spectrometer for TE polarization is introduced. The spectrometer exploits the modal dispersion in planar waveguides in a layout with slab regions having two different thicknesses of the guiding layer. The set-up uses parabolic mirrors, for the collimation of light of the input waveguide and focusing of the light to the receiver waveguides, which relies on total internal reflection at the interface between two such regions. These regions are connected adiabatically to prevent unwanted mode conversion and loss at the edges of the prism. The structure can be fabricated with two wet etching steps. The paper presents basic theory and a general approach for device optimization. The latter is illustrated with a numerical example assuming SiON technology.}}, author = {{Civitci, F. and Hammer, Manfred and Hoekstra, H.J.W.M.}}, issn = {{0030-4018}}, journal = {{Optics Communications}}, keywords = {{tet_topic_waveguide}}, pages = {{29--37}}, publisher = {{Elsevier BV}}, title = {{{Planar prism spectrometer based on adiabatically connected waveguiding slabs}}}, doi = {{10.1016/j.optcom.2015.11.066}}, volume = {{365}}, year = {{2015}}, } @article{3847, abstract = {{Sheets of slab waveguides with sharp corners are investigated. By means of rigorous numerical experiments, we look at oblique incidence of semi-guided plane waves. Radiation losses vanish beyond a certain critical angle of incidence. One can thus realize lossless propagation through 90-degree corner configurations, where the remaining guided waves are still subject to pronounced reflection and polarization conversion. A system of two corners can be viewed as a structure akin to a Fabry-Perot-interferometer. By adjusting the distance between the two partial reflectors, here the 90-degree corners, one identifies step-like configurations that transmit the semi-guided plane waves without radiation losses, and virtually without reflections. Simulations of semi-guided beams with in-plane wide Gaussian profiles show that the effect survives in a true 3-D framework.}}, author = {{Hammer, Manfred and Hildebrandt, Andre and Förstner, Jens}}, issn = {{0733-8724}}, journal = {{Journal of Lightwave Technology}}, keywords = {{tet_topic_waveguide}}, number = {{3}}, pages = {{997--1005}}, publisher = {{Institute of Electrical and Electronics Engineers (IEEE)}}, title = {{{Full Resonant Transmission of Semiguided Planar Waves Through Slab Waveguide Steps at Oblique Incidence}}}, doi = {{10.1109/jlt.2015.2502431}}, volume = {{34}}, year = {{2015}}, } @book{3879, author = {{Wachsmuth, Henning}}, isbn = {{978-3-319-25740-2}}, title = {{{Text Analysis Pipelines - Towards Ad-hoc Large-scale Text Mining}}}, doi = {{http://dx.doi.org/10.1007/978-3-319-25741-9}}, year = {{2015}}, } @article{3892, abstract = {{Plasmon modes of the exact same individual gold nanoprisms are investigated through combined nanometer-resolved electron energy-loss spectroscopy (EELS) and cathodoluminescence (CL) measurements. We show that CL only probes the radiative modes, in contrast to EELS, which additionally reveals dark modes. The combination of both techniques on the same particles thus provides complementary information and also demonstrates that although the radiative modes give rise to very similar spatial distributions when probed by EELS or CL, their resonant energies appear to be different. We trace this phenomenon back to plasmon dissipation, which affects in different ways the plasmon signatures probed by these techniques. Our experiments are in agreement with electromagnetic numerical simulations and can be further interpreted within the framework of a quasistatic analytical model. We therefore demonstrate that CL and EELS are closely related to optical scattering and extinction, respectively, with the addition of nanometer spatial resolution.}}, author = {{Losquin, Arthur and Zagonel, Luiz F. and Myroshnychenko, Viktor and Rodríguez-González, Benito and Tencé, Marcel and Scarabelli, Leonardo and Förstner, Jens and Liz-Marzán, Luis M. and García de Abajo, F. Javier and Stéphan, Odile and Kociak, Mathieu}}, issn = {{1530-6984}}, journal = {{Nano Letters}}, keywords = {{tet_topic_plasmonics}}, number = {{2}}, pages = {{1229--1237}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Unveiling Nanometer Scale Extinction and Scattering Phenomena through Combined Electron Energy Loss Spectroscopy and Cathodoluminescence Measurements}}}, doi = {{10.1021/nl5043775}}, volume = {{15}}, year = {{2015}}, } @article{3894, abstract = {{We show how to optically connect guiding layers at different elevations in a 3-D integrated photonic circuit. Transfer of optical power carried by planar, semi-guided waves is possible without reflections or radiation losses, and over large vertical distances. This functionality is realized through simple step-like folds of high-contrast dielectric slab waveguides, in combination with oblique wave incidence, and fulfilling a resonance condition. Radiation losses vanish, and polarization conversion is suppressed for TE wave incidence beyond certain critical angles. This can be understood by fundamental arguments resting on a version of Snell’s law. The two 90° corners of a step act as identical partial reflectors in a Fabry–Perot-like resonator setup. By selecting the step height, i.e., the distance between the reflectors, one realizes resonant states with full transmission. Rigorous quasi-analytical simulations for typical silicon/silica parameters demonstrate the functioning. Combinations of several step junctions can lead to other types of optical on-chip connects, e.g., U-turn- or bridge-like configurations.}}, author = {{Hammer, Manfred and Hildebrandt, Andre and Förstner, Jens}}, issn = {{0146-9592}}, journal = {{Optics Letters}}, keywords = {{tet_topic_waveguide}}, number = {{16}}, pages = {{3711--3714}}, publisher = {{The Optical Society}}, title = {{{How planar optical waves can be made to climb dielectric steps}}}, doi = {{10.1364/ol.40.003711}}, volume = {{40}}, year = {{2015}}, } @article{3896, abstract = {{We study the formation of subwavelength solitons in binary metal-dielectric lattices. We show that the transverse modulation of the lattice constant breaks the fundamental plasmonic band and suppresses the discrete diffraction of surface plasmon waves. New types of plasmonic solitons are found, and their characteristics are analyzed. We also demonstrate the existence of photonic-plasmonic vector solitons and elucidate their propagation properties.}}, author = {{Kou, Yao and Förstner, Jens}}, issn = {{0146-9592}}, journal = {{Optics Letters}}, keywords = {{tet_topic_polariton}}, number = {{6}}, pages = {{851--854}}, publisher = {{The Optical Society}}, title = {{{Subwavelength binary plasmonic solitons}}}, doi = {{10.1364/ol.40.000851}}, volume = {{40}}, year = {{2015}}, } @article{3900, abstract = {{The coherent state preparation and control of single quantum systems is an important prerequisite for the implementation of functional quantum devices. Prominent examples for such systems are semiconductor quantum dots, which exhibit a fine structure split single exciton state and a V-type three level structure, given by a common ground state and two distinguishable and separately excitable transitions. In this work we introduce a novel concept for the preparation of a robust inversion by the sequential excitation in a V-type system via distinguishable paths.}}, author = {{Mantei, D. and Förstner, Jens and Gordon, S. and Leier, Y. A. and Rai, A. K. and Reuter, Dirk and Wieck, A. D. and Zrenner, Artur}}, issn = {{2045-2322}}, journal = {{Scientific Reports}}, keywords = {{tet_topic_qd}}, number = {{1}}, pages = {{10313}}, publisher = {{Springer Nature}}, title = {{{Robust Population Inversion by Polarization Selective Pulsed Excitation}}}, doi = {{10.1038/srep10313}}, volume = {{5}}, year = {{2015}}, } @article{288, abstract = {{Experience goods are characterised by information asymmetry and a lack of ex ante knowledge of product quality, such that reliable external signals of quality are likely to be highly valued. Two potentially credible sources of such information are reviews from professional critics and ‘word of mouth’ from other consumers. This paper makes a direct comparison between the relative influences and interactions of reviews from both of these sources on the sales performance of video game software. In order to empirically estimate and separate the effects of the two signals, we analyze a sample of 1480 video games and their sales figures between 2004 and 2010. We find evidence to suggest that even after taking steps to control for endogeneity, reviews from professional critics have a significantly positive influence on sales which outweighs that from consumer reviews. We also find evidence to suggest that reviews from professional critics also interact significantly with other signals of product quality. Consequently, we contend that professional critics adopt the role of an influencer, whereas word-of-mouth opinion acts more as a predictor of sales in the market for video games.}}, author = {{Cox, Joe and Kaimann, Daniel}}, journal = {{Journal of Consumer Behaviour}}, number = {{6}}, pages = {{366--377}}, publisher = {{Wiley Online Library}}, title = {{{How do reviews from professional critics interact with other signals of product quality? Evidence from the video game industry}}}, doi = {{10.1002/cb.1553}}, volume = {{14}}, year = {{2015}}, } @inproceedings{289, abstract = {{We examine the effect of the variance of consumer ratings on product pricing and sales using an analytical model, which considers goods that are characterized by experience attributes and informed search attributes (i.e., experience attributes that were transformed in search attributes by consumer ratings). For pure informed search goods, equilibrium price increases and demand decreases in variance. For pure experience goods, equilibrium price and demand decrease in variance. For hybrid goods with low total variance, equilibrium price and demand increase with an increasing relative share of variance caused by informed search attributes when the average rating and total variance of ratings are held constant. Hence, risk-averse consumers may prefer a more expensive good with a higher variance of ratings out of two similar goods with the same average rating. Moreover, our analytical model provides a theoretical foundation for the empirically observed j-shaped distribution of consumer ratings in electronic commerce.}}, author = {{Herrmann, Philipp and Kundisch, Dennis and Zimmermann, Steffen and Nault, Barry}}, booktitle = {{Proceedings of the 36th International Conference on Information Systems (ICIS), Fort Worth}}, location = {{Forth Worth, USA}}, title = {{{How do Different Sources of the Variance of Consumer Ratings Matter?}}}, year = {{2015}}, } @article{290, abstract = {{Model transformation is a key concept in model-driven software engineering. The definition of model transformations is usually based on meta-models describing the abstract syntax of languages. While meta-models are thereby able to abstract from uperfluous details of concrete syntax, they often loose structural information inherent in languages, like information on model elements always occurring together in particular shapes. As a consequence, model transformations cannot naturally re-use language structures, thus leading to unnecessary complexity in their development as well as in quality assurance.In this paper, we propose a new approach to model transformation development which allows to simplify the developed transformations and improve their quality via the exploitation of the languages׳ structures. The approach is based on context-free graph grammars and transformations defined by pairing productions of source and target grammars. We show that such transformations have important properties: they terminate and are sound, complete, and deterministic.}}, author = {{Besova, Galina and Steenken, Dominik and Wehrheim, Heike}}, journal = {{Computer Languages, Systems & Structures}}, pages = {{116--138}}, publisher = {{Elsevier}}, title = {{{Grammar-based model transformations: Definition, execution, and quality properties}}}, doi = {{10.1016/j.cl.2015.05.003}}, year = {{2015}}, }