@inproceedings{48840, abstract = {{Research has shown that for many single-objective graph problems where optimum solutions are composed of low weight sub-graphs, such as the minimum spanning tree problem (MST), mutation operators favoring low weight edges show superior performance. Intuitively, similar observations should hold for multi-criteria variants of such problems. In this work, we focus on the multi-criteria MST problem. A thorough experimental study is conducted where we estimate the probability of edges being part of non-dominated spanning trees as a function of the edges’ non-domination level or domination count, respectively. Building on gained insights, we propose several biased one-edge-exchange mutation operators that differ in the used edge-selection probability distribution (biased towards edges of low rank). Our empirical analysis shows that among different graph types (dense and sparse) and edge weight types (both uniformly random and combinations of Euclidean and uniformly random) biased edge-selection strategies perform superior in contrast to the baseline uniform edge-selection. Our findings are in particular strong for dense graphs.}}, author = {{Bossek, Jakob and Grimme, Christian and Neumann, Frank}}, booktitle = {{Proceedings of the Genetic and Evolutionary Computation Conference}}, isbn = {{978-1-4503-6111-8}}, keywords = {{biased mutation, combinatorial optimization, minimum spanning tree, multi-objective optimization}}, pages = {{516–523}}, publisher = {{Association for Computing Machinery}}, title = {{{On the Benefits of Biased Edge-Exchange Mutation for the Multi-Criteria Spanning Tree Problem}}}, doi = {{10.1145/3321707.3321818}}, year = {{2019}}, } @inproceedings{48858, abstract = {{The $$\textbackslash mathcal NP$$-hard multi-criteria shortest path problem (mcSPP) is of utmost practical relevance, e.~g., in navigation system design and logistics. We address the problem of approximating the Pareto-front of the mcSPP with sum objectives. We do so by proposing a new mutation operator for multi-objective evolutionary algorithms that solves single-objective versions of the shortest path problem on subgraphs. A rigorous empirical benchmark on a diverse set of problem instances shows the effectiveness of the approach in comparison to a well-known mutation operator in terms of convergence speed and approximation quality. In addition, we glance at the neighbourhood structure and similarity of obtained Pareto-optimal solutions and derive promising directions for future work.}}, author = {{Bossek, Jakob and Grimme, Christian}}, booktitle = {{Learning and Intelligent Optimization}}, editor = {{Battiti, Roberto and Brunato, Mauro and Kotsireas, Ilias and Pardalos, Panos M.}}, isbn = {{978-3-030-05348-2}}, pages = {{184–198}}, publisher = {{Springer International Publishing}}, title = {{{Solving Scalarized Subproblems within Evolutionary Algorithms for Multi-criteria Shortest Path Problems}}}, doi = {{10.1007/978-3-030-05348-2_17}}, year = {{2019}}, } @inproceedings{48870, abstract = {{The edge coloring problem asks for an assignment of colors to edges of a graph such that no two incident edges share the same color and the number of colors is minimized. It is known that all graphs with maximum degree {$\Delta$} can be colored with {$\Delta$} or {$\Delta$} + 1 colors, but it is NP-hard to determine whether {$\Delta$} colors are sufficient. We present the first runtime analysis of evolutionary algorithms (EAs) for the edge coloring problem. Simple EAs such as RLS and (1+1) EA efficiently find (2{$\Delta$} - 1)-colorings on arbitrary graphs and optimal colorings for even and odd cycles, paths, star graphs and arbitrary trees. A partial analysis for toroids also suggests efficient runtimes in bipartite graphs with many cycles. Experiments support these findings and investigate additional graph classes such as hypercubes, complete graphs and complete bipartite graphs. Theoretical and experimental results suggest that simple EAs find optimal colorings for all these graph classes in expected time O({$\Delta\mathscrl$}2m log m), where m is the number of edges and {$\mathscrl$} is the length of the longest simple path in the graph.}}, author = {{Bossek, Jakob and Sudholt, Dirk}}, booktitle = {{Proceedings of the 15th ACM/SIGEVO Conference on Foundations of Genetic Algorithms}}, isbn = {{978-1-4503-6254-2}}, keywords = {{edge coloring problem, runtime analysis}}, pages = {{102–115}}, publisher = {{Association for Computing Machinery}}, title = {{{Time Complexity Analysis of RLS and (1 + 1) EA for the Edge Coloring Problem}}}, doi = {{10.1145/3299904.3340311}}, year = {{2019}}, } @inproceedings{48875, abstract = {{A multiobjective perspective onto common performance measures such as the PAR10 score or the expected runtime of single-objective stochastic solvers is presented by directly investigating the tradeoff between the fraction of failed runs and the average runtime. Multi-objective indicators operating in the bi-objective space allow for an overall performance comparison on a set of instances paving the way for instance-based automated algorithm selection techniques.}}, author = {{Bossek, Jakob and Trautmann, Heike}}, booktitle = {{Learning and Intelligent Optimization}}, editor = {{Battiti, Roberto and Brunato, Mauro and Kotsireas, Ilias and Pardalos, Panos M.}}, isbn = {{978-3-030-05348-2}}, keywords = {{Algorithm selection, Performance measurement}}, pages = {{215–219}}, publisher = {{Springer International Publishing}}, title = {{{Multi-Objective Performance Measurement: Alternatives to PAR10 and Expected Running Time}}}, doi = {{10.1007/978-3-030-05348-2_19}}, year = {{2019}}, } @article{48877, abstract = {{OpenML is an online machine learning platform where researchers can easily share data, machine learning tasks and experiments as well as organize them online to work and collaborate more efficiently. In this paper, we present an R package to interface with the OpenML platform and illustrate its usage in combination with the machine learning R package mlr (Bischl et al. J Mach Learn Res 17(170):1—5, 2016). We show how the OpenML package allows R users to easily search, download and upload data sets and machine learning tasks. Furthermore, we also show how to upload results of experiments, share them with others and download results from other users. Beyond ensuring reproducibility of results, the OpenML platform automates much of the drudge work, speeds up research, facilitates collaboration and increases the users’ visibility online.}}, author = {{Casalicchio, Giuseppe and Bossek, Jakob and Lang, Michel and Kirchhoff, Dominik and Kerschke, Pascal and Hofner, Benjamin and Seibold, Heidi and Vanschoren, Joaquin and Bischl, Bernd}}, issn = {{0943-4062}}, journal = {{Computational Statistics}}, keywords = {{Databases, Machine learning, R, Reproducible research}}, number = {{3}}, pages = {{977–991}}, title = {{{OpenML: An R Package to Connect to the Machine Learning Platform OpenML}}}, doi = {{10.1007/s00180-017-0742-2}}, volume = {{34}}, year = {{2019}}, } @article{41032, author = {{Gregori, Bernhard J. and Schwarzhuber, Felix and Pöllath, Simon and Zweck, Josef and Fritsch, Lorena and Schoch, Roland and Bauer, Matthias and Jacobi von Wangelin, Axel}}, issn = {{1864-5631}}, journal = {{ChemSusChem}}, keywords = {{General Energy, General Materials Science, General Chemical Engineering, Environmental Chemistry}}, number = {{16}}, pages = {{3864--3870}}, publisher = {{Wiley}}, title = {{{Stereoselective Alkyne Hydrogenation by using a Simple Iron Catalyst}}}, doi = {{10.1002/cssc.201900926}}, volume = {{12}}, year = {{2019}}, } @book{49614, author = {{Schulte Eickholt, Swen and Hofmann, Michael and von Stosch, Klaus}}, title = {{{Navid Kermani}}}, year = {{2019}}, } @inbook{49712, author = {{Elit, Stefan and Eke, Norbert Otto}}, booktitle = {{Literarische Institutionen}}, editor = {{Elit, Stefan and Eke, Norbert Otto}}, isbn = {{978-3-11-036469-9}}, pages = {{1--17}}, publisher = {{de Gruyter}}, title = {{{Einleitung}}}, year = {{2019}}, } @misc{49747, author = {{Huybrechts, Yves}}, publisher = {{BelgienNet}}, title = {{{Die Antwerpener Börse - Aufstieg, Niedergang und Wandel (VIDEO)}}}, year = {{2019}}, } @inbook{49834, author = {{Diedrich, Alena}}, booktitle = {{Verhinderte Meisterwerke. Gescheiterte Projekte in Literatur und Film}}, editor = {{Bartl, Andrea and Erk, Corina and Klinge, Annika and Kraus, Martin}}, title = {{{Ironische Wendigkeit und poetische Notwendigkeit. Zum Begriff des ,Scheiterns‘ bei Hans Magnus Enzensberger}}}, year = {{2019}}, } @article{49878, author = {{Neiske, Iris and Vöing, Nera}}, issn = {{1860-3033}}, journal = {{Personal- und Organisationsentwicklung Forum für Führung, Moderation, Training, Programm-Organisation in Einrichtungen der Lehre und Forschung}}, number = {{3+4}}, pages = {{74--78}}, title = {{{Tätigkeitsbericht 2007-2017 der Stabsstelle Bildungsinnovationen und Hochschuldidaktik der Universität Paderborn}}}, volume = {{14}}, year = {{2019}}, } @article{49874, author = {{Neiske, Iris}}, issn = {{1434-9736}}, journal = {{Paderborner Universitätszeitschrift (puz)}}, pages = {{77}}, title = {{{Kurz berichtet. Das E-Tutoren-Programm an der UPB.}}}, year = {{2019}}, } @book{44009, editor = {{Janus, Richard and Niepert-Rumel, Sophia Stephanie Gundula and Nord, Ilona and Schmidt, Jochen and Schroeter-Wittke, Harald}}, isbn = {{978-3-374-04805-2}}, pages = {{248}}, publisher = {{Evangelische Verlagsanstalt}}, title = {{{Jesus-Transformationen. Zum 60. Geburtstag von Martin Leutzsch}}}, year = {{2019}}, } @inbook{50005, author = {{Niepert-Rumel, Sophia Stephanie Gundula}}, booktitle = {{Jesus-Transformationen}}, editor = {{Janus, Richard and Niepert-Rumel, Sophia and Nord, Ilona and Schmit, Jochen and Schroeter-Wittke, Harald}}, isbn = {{978-3-374-04805-2 }}, pages = {{34--48}}, publisher = {{Evangelische Verlagsanstalt}}, title = {{{Jesus als Metapher. Bildhafte Jesus-Transformationen im NT und darüber hinaus}}}, year = {{2019}}, } @article{32156, abstract = {{How do ideas come into being? Our contribution takes its starting point in an observation we made in empirical data from a prior study. The data center around an instant of an academic writer’s thinking during the revision of a scientific paper. Through a detailed discourse-oriented micro-analysis, we zoom in on the writer’s thinking activity and uncover the genesis of a complex idea through a sequence of interrelated moments. These moments feature different degrees of “crystallization” of the idea; from gestures, a sketch, a short written note, oral explanations to a final spelled-out written argument. For this contribution, we re-analyze the material, asking how the idea gets formed during the thinking process and how it reaches a tangible form, which is understandable both for the thinker and for other persons. We root our analysis in a notion of language as social, embodied, and dialogical activity, drawing on concepts from Humboldt, Jakubinskij, and Vygotsky. We focus our analysis on three conceptual nodes. The first node is the ebbing and advancing of language in idea formation – observable as a trajectory through linguistically more condensed or more expanded utterance forms. The second node is the degree of objectification that the idea reaches when it is performed differently in a variety of addressivity constellations, i.e., whether and how it becomes understandable to the thinker and to others in the social sphere. Finally, the third node is the saturation of the idea through what we call intrapersonal intertextuality, i.e., its complex and dialogically related re-articulations in a sequence of formative moments. With these considerations, we articulate a clear consequence for theorizing thinking. We hold that thinking is social, embodied, and dialogically organized because it is entangled with language. Ideas come into being and become understandable and communicable to other persons only by and within their different, yet, intertextually related formations.}}, author = {{Karsten, Andrea and Bertau, Marie-Cécile}}, journal = {{Frontiers in Psychology}}, keywords = {{idea formation, language activity, objectification, intrapersonal intertextuality, articulation, Jakubinskij, Vygotsky, Humboldt}}, title = {{{How ideas come into being: Tracing intertextual moments in grades of objectification and publicness}}}, doi = {{10.3389/fpsyg.2019.02355}}, volume = {{10}}, year = {{2019}}, } @article{50106, author = {{Pauls, Karina}}, journal = {{Impulse.Kunstdidaktik }}, pages = {{S. 34--44}}, title = {{{Farbe im Prozess optischer und haptischer Wahrnehmung – ein Beispiel aus dem Kunstunterricht}}}, volume = {{25}}, year = {{2019}}, } @misc{50107, author = {{Pauls, Karina}}, booktitle = {{BDK Mitteilungen 2/2019}}, pages = {{S. 44}}, title = {{{Rezension zu Kunibert Bering – Rolf Niehoff: Horizonte der Bild-/Kunstgeschichte mit kunstpädagogischem Blick – Band 2}}}, year = {{2019}}, } @phdthesis{50177, abstract = {{In der vorliegenden Arbeit werden Wege untersucht, um die stellare Physik zu elementarisieren und in Lehrkonzepte zu überführen. Damit sollen angehenden oder tätigen Lehrenden der Physik Mittel an die Hand gegeben werden, die ein angemessenes Theorieverständnis ermöglichen. In erster Linie wird damit bezweckt, eine wesentliche Forschungsmethode der Astrophysik - nämlich Himmelskörper mathematisch so zu modellieren, dass an ihrer Oberfläche beobachtbare Phänomene vorhergesagt werden - im Lehr- und Unterrichtsbetrieb zu präsentieren. Bekanntlich werden viele astrophysikalische Phänomene in der Lehrliteratur nur phänomenologisch abgehandelt, wodurch das Desiderat entsteht, dass die eigentliche Untersuchungsmethodologie nur ungenügend vermittelt wird. In der Promotionsschrift wird berücksichtigt, dass Astrophysik nur einen kleinen Teil eines Physikstudiums für das Lehramt ausmacht, der Stoff daher komprimiert und ohne tiefere Vorkenntnisse zu behandeln ist. Weiterhin wird anhand der Analyse von Aufgaben zweier Schulbuchreihen gezeigt, dass quantitatives Arbeiten insbesondere in der Sekundarstufe II einen großen Teil des Physikunterrichts ausmacht und sich daher mathematisches Modellieren für Übungen anbietet. Von jeher unterliegt die Astrophysik einem besonders kritischen, erkenntnistheoretischen Blick, da sie naturgegeben weitgehend auf die experimentelle Untersuchung ihrer Forschungsgegenstände verzichten muss und nur anhand passiver Beobachtungen zu Erkenntnissen gelangen kann. Eine sinnvolle Beschäftigung mit modernen Forschungsresultaten der Astrophysik ist daher ohne eine besondere Einbindung in einen erkenntnistheoretischen Rahmen kaum vorstellbar. Daher werden in der vorliegenden Schrift erkenntnistheoretische Grundlagen vorgestellt, die einen kritischen Blick auf die Entwicklung einer astrophysikalischen Theorie ermöglichen. Es werden Varianten aufgezeigt, die Sterne sowohl als quasi-statische Objekte zu betrachten als auch ihre Entwicklung näher zu beleuchten. Speziell auf die Bedingungen zur Entwicklung von Leben auf einem Planeten und die dabei bestehenden Zusammenhänge zum Zentralgestirn wird eingegangen, da die Frage nach Leben auf anderen Planeten ein für Lernende interessantes Thema ist. Die präsentierten Modelle benötigen dabei nur Mathematik und Physik der Grundvorlesungen, teilweise genügt Abiturniveau.}}, author = {{Hohmann, Sascha}}, isbn = {{978-3-96182-050-4}}, pages = {{200}}, publisher = {{Universi-Verlag}}, title = {{{Die Entwicklung der Sterne. Eine elementarisierte Betrachtung. Dissertation. Universi-Verlag, Siegen, ISBN 978-3-96182-050-4}}}, doi = {{10.25819/ubsi/486}}, year = {{2019}}, } @inproceedings{50196, author = {{Hohmann, Sascha}}, booktitle = {{PhyDid B}}, editor = {{Grötzebauch, Helmuth}}, issn = {{2191-379X}}, location = {{Aachen}}, number = {{2019}}, pages = {{31--36}}, title = {{{Wie groß ist ein Neutronenstern? Elementarisierende Überlegungen und Abschätzungen}}}, year = {{2019}}, } @article{50197, author = {{Hohmann, Sascha}}, issn = {{1437-8639}}, journal = {{Astronomie + Raumfahrt im Unterricht}}, number = {{2019}}, pages = {{15--19}}, publisher = {{Friedrich-Verlag}}, title = {{{Stellare Voraussetzungen für die Entstehung von Leben}}}, volume = {{5}}, year = {{2019}}, }