@techreport{233, abstract = {{Motivated by the deterministic single exponential time algorithm of Micciancio and Voulgaris for solving the shortest and closest vector problem for the Euclidean norm, we study the geometry and complexity of Voronoi cells of lattices with respect to arbitrary norms.On the positive side, we show that for strictly convex and smooth norms the geometry of Voronoi cells of lattices in any dimension is similar to the Euclidean case, i.e., the Voronoi cells are defined by the so-called Voronoi-relevant vectors and the facets of a Voronoi cell are in one-to-one correspondence with these vectors. On the negative side, we show that combinatorially Voronoi cells for arbitrary strictly convex and smooth norms are much more complicated than in the Euclidean case.In particular, we construct a family of three-dimensional lattices whose number of Voronoi-relevant vectors with respect to the l_3-norm is unbounded.Since the algorithm of Micciancio and Voulgaris and its run time analysis crucially dependonthefactthatfortheEuclidean normthenumber of Voronoi-relevant vectors is single exponential in the lattice dimension, this indicates that the techniques of Micciancio and Voulgaris cannot be extended to achieve deterministic single exponential time algorithms for lattice problems with respect to arbitrary l_p-norms.}}, author = {{Blömer, Johannes and Kohn, Kathlén}}, publisher = {{Universität Paderborn}}, title = {{{Voronoi Cells of Lattices with Respect to Arbitrary Norms}}}, year = {{2015}}, } @article{21733, author = {{Wiens, Alex and Domik, Gitta}}, journal = {{IEEE Computer Graphics and Applications}}, number = {{3}}, pages = {{15--19}}, publisher = {{IEEE}}, title = {{{In-Class Exercise for Shadow Mapping Algorithms}}}, doi = {{10.1109/MCG.2015.58}}, volume = {{35}}, year = {{2015}}, } @article{21734, author = {{Wiens, Alex and Domik, Gitta}}, journal = {{IEEE Computer Graphics and Applications}}, number = {{4}}, pages = {{108--112}}, publisher = {{IEEE}}, title = {{{In-Class Exercises for Shadow Volume Algorithms}}}, doi = {{10.1109/MCG.2015.82}}, volume = {{35}}, year = {{2015}}, } @article{21735, author = {{Encarnacao, L. M. and Chuang, Y. and Stork, A. and Kasik, D. and Rhyne, T. and Avila, L. and Kohlhammer, J. and LaViola, J. and Tory, M. and Dill, J. and Domik, Gitta and Owen, G. S. and Wong, P. C.}}, journal = {{IEEE Computer Graphics and Applications}}, number = {{1}}, pages = {{20--32}}, publisher = {{IEEE}}, title = {{{Future Directions in Computer Graphics and Visualization: From CG&A's Editorial Board}}}, doi = {{10.1109/MCG.2015.14}}, volume = {{35}}, year = {{2015}}, } @article{21736, author = {{Haas, Nikolaus and Zelle, Michael and Rosendahl, Wilfried and Zink, Albert and Preuss, Rainer and Laser, Kai and Gostner, Paul and Arens, Stephan and Domik, Gitta and Burchert, Wolfgang}}, journal = {{Lancet (London, England)}}, pages = {{2432}}, title = {{{Hypoplastic left heart in the 6500-year-old Detmold Child}}}, doi = {{10.1016/S0140-6736(15)60770-X}}, volume = {{385}}, year = {{2015}}, } @article{21737, author = {{Zhang, K. and Nguyen , Q. V. and Meng , Z. and Tao, W.}}, journal = {{IEEE Computer Graphics and Applications}}, number = {{1}}, pages = {{56--64}}, publisher = {{IEEE}}, title = {{{Teaching Information Aesthetics as a Research Class in China}}}, doi = {{10.1109/MCG.2015.22}}, volume = {{35}}, year = {{2015}}, } @article{21738, author = {{Rensink, R. A.}}, journal = {{IEEE Computer Graphics and Applications}}, number = {{2}}, pages = {{16--20}}, publisher = {{IEEE}}, title = {{{Preparing Undergraduates for Visual Analytics}}}, doi = {{10.1109/MCG.2015.40}}, volume = {{35}}, year = {{2015}}, } @article{21739, author = {{Artner, N. M. and Janusch, I. and Kropatsch, W.G.}}, journal = {{IEEE Computer Graphics and Applications}}, number = {{5}}, pages = {{101--c3}}, publisher = {{IEEE}}, title = {{{Evaluating and Grading Students in Large-Scale Image Processing Courses}}}, doi = {{10.1109/MCG.2015.107}}, volume = {{35}}, year = {{2015}}, } @article{21740, author = {{Cao, Mingliang and Li, Yi and Pan, Zhigeng and Csete, Josephine and Sun, Shu and Li, Jie and Liu, Y.u}}, journal = {{IEEE Computer Graphics and Applications}}, number = {{6}}, pages = {{83--89}}, publisher = {{IEEE}}, title = {{{Educational Virtual-Wear Trial: More Than a Virtual Try-On Experience}}}, doi = {{10.1109/MCG.2015.130}}, volume = {{35}}, year = {{2015}}, } @proceedings{7760, editor = {{Engstler, Martin and Fazal-Baqaie, Masud and Hanser, Eckhart and Mikusz, Martin and Volland, Alexander}}, publisher = {{GI, Köllen Druck+Verlag GmbH, Bonn}}, title = {{{Projektmanagement und Vorgehensmodelle 2015: Hybride Projektstrukturen erfolgreich umsetzen - Proceedings der gemeinsamen Tagung der Fachgruppen WI-PM und WI-VM im Fachgebiet Wirtschaftsinformatik der Gesellschaft für Informatik e.V.}}}, volume = {{P-250}}, year = {{2015}}, } @inproceedings{8067, author = {{Fazal-Baqaie, Masud and Grieger, Marvin and Sauer, Stefan}}, booktitle = {{Proceedings of the 16th International Conference of Product Focused Software Development and Process Improvement (PROFES 2015)}}, pages = {{167--181}}, publisher = {{Springer}}, title = {{{Tickets without Fine - Artifact-based Synchronization of Globally Distributed Software Development in Practice}}}, doi = {{dx.doi.org/10.1007/978-3-319-26844-6_12}}, volume = {{9459}}, year = {{2015}}, } @inproceedings{8068, author = {{Fazal-Baqaie, Masud and Raninen, Anu}}, booktitle = {{Industrial Proceedings of the 22nd European Systems Software & Service Process Improvement & Innovation Conference (EuroSPI²2015)}}, pages = {{5.1 -- 5.10}}, publisher = {{WHITEBOX, Denmark}}, title = {{{Successfully Initiating a Global Software Project}}}, year = {{2015}}, } @inproceedings{8069, abstract = {{Die cloudbasierte Bereitstellung von Funktionen als Software-as-a-Service (SaaS) ermöglicht die Erschließung neuer Kundenpotenziale bei kleinen und mittelgroßen Unternehmen.}}, author = {{Nagel, Benjamin and Schröder, Klaus and Becker, Steffen and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Software Engineering & Management 2015}}, pages = {{255--260}}, title = {{{Kooperative Methoden- und Werkzeugentwicklung zur Cloudmigration von proprietären Anwendungskomponenten}}}, doi = {{https://groups.uni-paderborn.de/fg-engels/Publications/10.1007/978-3-319-26844-6_12}}, volume = {{LNI-239}}, year = {{2015}}, } @inproceedings{5747, author = {{Yigitbas, Enes and Mohrmann, Bastian and Sauer, Stefan}}, booktitle = {{Proceedings of the 1st Workshop on Large-scale and Model-based Interactive Systems: Approaches and Challenges, {LMIS} 2015, co-located with 7th {ACM} {SIGCHI} Symposium on Engineering Interactive Computing Systems {(EICS} 2015), Duisburg, Germany, June 23, 2015.}}, pages = {{42--46}}, title = {{{Model-driven UI Development Integrating HCI Patterns}}}, year = {{2015}}, } @inproceedings{5748, author = {{Yigitbas, Enes and Sauer, Stefan and Engels, Gregor}}, booktitle = {{Human-Computer Interaction: Interaction Technologies - 17th International Conference, {HCI} International 2015, Los Angeles, CA, USA, August 2-7, 2015, Proceedings, Part {II}}}, pages = {{563--572}}, title = {{{A Model-Based Framework for Multi-Adaptive Migratory User Interfaces}}}, doi = {{10.1007/978-3-319-20916-6\_52}}, year = {{2015}}, } @inproceedings{6259, author = {{Fischer, Holger Gerhard and Yigitbas, Enes and Sauer, Stefan}}, booktitle = {{Proceedings of 15th IFIP TC.13 International Conference on Human-Computer Interaction (INTERACT)}}, location = {{Bamberg}}, pages = {{215--221}}, publisher = {{University of Bamberg Press}}, title = {{{Integrating Human-Centered and Model-Driven Methods in Agile UI Development}}}, volume = {{22}}, year = {{2015}}, } @inproceedings{6262, author = {{Fischer, Holger Gerhard and Polkehn, Knut and Geis, Thomas and Kluge, Oliver and Behrenbruch, Kay and Riedemann, Catharina}}, booktitle = {{Mensch und Computer 2015 - Usability Professionals}}, pages = {{371--378}}, publisher = {{De Gruyter, Berlin}}, title = {{{Qualitätsdimensionen für interaktive Systeme - Stand der Arbeiten UPA AK Qualitätsstandards}}}, year = {{2015}}, } @proceedings{6308, editor = {{Fischer, Holger Gerhard and Endmann, Anja and Krökel, Malte}}, isbn = {{978-3-11-044332-5}}, publisher = {{De Gruyter}}, title = {{{Mensch und Computer 2015 - Usability Professionals. Tagungsband}}}, year = {{2015}}, } @article{4409, abstract = {{We investigate the interplay between geometrical lattice resonances and surface plasmons mediating the emission of Smith-Purcell visible light via angle-resolved cathodoluminescence spectroscopy. We observe strong modulations in the dispersion curves of Smith-Purcell radiation (SPR) when they intersect the surface plasmons of silver gratings using a 200-kV transmission electron microscope. The decay of the plasmons away from the grating is directly probed by controlling the electron-beam position relative to the sample surface with nanometer precision. Our measurements are in excellent agreement with numerical simulations, clearly revealing the presence of characteristic Fano profiles resulting from the interference of the light continuum and the discrete plasmon states for each direction of emission. The intensity anomaly in the SPR emission pattern can be well explained from the geometrical consideration of the intersections between the dispersion planes of the SPR and surface plasmon polariton (SPP). A strong and directional SPR beam can be realized under the condition that the SPR dispersion plane comes in contact with the band edge of the SPP dispersion plane.}}, author = {{Yamamoto, Naoki and Javier García de Abajo, F. and Myroshnychenko, Viktor}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{12}}, publisher = {{American Physical Society (APS)}}, title = {{{Interference of surface plasmons and Smith-Purcell emission probed by angle-resolved cathodoluminescence spectroscopy}}}, doi = {{10.1103/physrevb.91.125144}}, volume = {{91}}, year = {{2015}}, } @inproceedings{4465, abstract = {{The first year of studying has been extensively researched applying different theoretical lenses to better understand the transition into Higher Education (HE). It is of particular interest to investigate how students deal with frictions between themselves as individuals and what they perceive to be dominant features of the first-year culture of their studies. To tackle this question, a qualitative longitudinal study was conducted. Based on a sociocultural understanding of attitudes and motivations, its aim was to closely follow a relatively small but highly diverse sample of students throughout their first year at a business school in order to develop an in-depth understanding of each individual’s motivational and attitudinal development.}}, author = {{Jenert, Tobias and Brahm, Taiga}}, keywords = {{Enculturation, first-year students, beginning students, retention, drop-out}}, location = {{Chicago}}, title = {{{How Do They Find Their Place? A Longitudinal Study of Management Students' Attitudes and Motivations During Their First Year at Business School}}}, year = {{2015}}, }