@inproceedings{1590, abstract = {{We present the submatrix method, a highly parallelizable method for the approximate calculation of inverse p-th roots of large sparse symmetric matrices which are required in different scientific applications. Following the idea of Approximate Computing, we allow imprecision in the final result in order to utilize the sparsity of the input matrix and to allow massively parallel execution. For an n x n matrix, the proposed algorithm allows to distribute the calculations over n nodes with only little communication overhead. The result matrix exhibits the same sparsity pattern as the input matrix, allowing for efficient reuse of allocated data structures. We evaluate the algorithm with respect to the error that it introduces into calculated results, as well as its performance and scalability. We demonstrate that the error is relatively limited for well-conditioned matrices and that results are still valuable for error-resilient applications like preconditioning even for ill-conditioned matrices. We discuss the execution time and scaling of the algorithm on a theoretical level and present a distributed implementation of the algorithm using MPI and OpenMP. We demonstrate the scalability of this implementation by running it on a high-performance compute cluster comprised of 1024 CPU cores, showing a speedup of 665x compared to single-threaded execution.}}, author = {{Lass, Michael and Mohr, Stephan and Wiebeler, Hendrik and Kühne, Thomas and Plessl, Christian}}, booktitle = {{Proc. Platform for Advanced Scientific Computing (PASC) Conference}}, isbn = {{978-1-4503-5891-0/18/07}}, keywords = {{approximate computing, linear algebra, matrix inversion, matrix p-th roots, numeric algorithm, parallel computing}}, location = {{Basel, Switzerland}}, publisher = {{ACM}}, title = {{{A Massively Parallel Algorithm for the Approximate Calculation of Inverse p-th Roots of Large Sparse Matrices}}}, doi = {{10.1145/3218176.3218231}}, year = {{2018}}, } @inproceedings{1204, author = {{Riebler, Heinrich and Vaz, Gavin Francis and Kenter, Tobias and Plessl, Christian}}, booktitle = {{Proc. ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming (PPoPP)}}, isbn = {{9781450349826}}, keywords = {{htrop}}, publisher = {{ACM}}, title = {{{Automated Code Acceleration Targeting Heterogeneous OpenCL Devices}}}, doi = {{10.1145/3178487.3178534}}, year = {{2018}}, } @article{47455, author = {{Fergland, Dennis and Kehne, Miriam}}, journal = {{Grundschule Sport}}, pages = {{17, 28}}, title = {{{Poster: Kunststücke mit dem Ball}}}, year = {{2018}}, } @misc{56091, author = {{Adamik, Julie}}, title = {{{Die Entwicklung des Mystik-Verständnisses vom 19. zum 20. Jahrhundert.}}}, year = {{2018}}, } @inbook{55807, author = {{Grössl, Johannes}}, booktitle = {{Die gegenwärtige Krise Europas. Theologische Antwortversuche}}, editor = {{Kirschner, Martin and Ruhstorfer, Karlheinz}}, isbn = {{978-3-451-02291-3}}, pages = {{189--209}}, publisher = {{Herder}}, title = {{{Die ambivalente Rolle von Religion in einer offenen Gesellschaft – eine theologische Rezeption der Sozialphilosophie Karl Poppers}}}, volume = {{291}}, year = {{2018}}, } @inproceedings{56157, author = {{Schulte, Carsten and Krüger, Jessica and Gödecke, Andreas and Schmidt, Ann-Katrin}}, booktitle = {{Proceedings of the 13th Workshop in Primary and Secondary Computing Education}}, publisher = {{ACM}}, title = {{{The computing repair cafe}}}, doi = {{10.1145/3265757.3265781}}, year = {{2018}}, } @inproceedings{56249, author = {{Fleischmann, Yael and Kempen, Leander and Mai, Tobias and Biehler, Rolf}}, booktitle = {{Hanse-Kolloquium zur Hochschuldidaktik der Mathematik}}, editor = {{Klinger, M. and Schüler-Meyer, A. and Wessel, L.}}, pages = {{101–116}}, publisher = {{WTM-Verlag}}, title = {{{Die online Lernmaterialien von studiVEMINT: Einsatzszenarien im Blended Learning Format in mathematischen Vorkursen}}}, year = {{2018}}, } @article{56254, author = {{Kempen, Leander and Biehler, Rolf}}, issn = {{2198-9745}}, journal = {{International Journal of Research in Undergraduate Mathematics Education}}, number = {{1}}, pages = {{27--55}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Pre-Service Teachers’ Benefits from an Inquiry-Based Transition-to-Proof Course with a Focus on Generic Proofs}}}, doi = {{10.1007/s40753-018-0082-9}}, volume = {{5}}, year = {{2018}}, } @book{56253, author = {{Hochmuth, Reinhard and Biehler, Rolf and Schaper, Niclas and Kuklinski, Christiane and Lankeit, Elisa and Leis, Elena and Liebendörfer, Michael and Schürmann, Mirko}}, publisher = {{Leibniz Universität Hannover}}, title = {{{Wirkung und Gelingensbedingungen von Unterstützungsmaßnahmen für mathmatikbezogenes Lernen in der Studieneingangsphase: Schlussbericht: Teilprojekt A der Leibniz Universität Hannover, Teilprojekte B und C der Universität Paderborn: Berichtszeitraum: 01.03. 2015-31.08. 2018}}}, year = {{2018}}, } @inbook{5797, author = {{Kremer, H.-Hugo and Emmighausen, Laura and Mauer, Eileen}}, booktitle = {{Heterogenität als Chance. Bilanz und Perspektiven des Qualitätspakt Lehre-Projekts an der Universität Paderborn}}, editor = {{Riegraf, B. and Meister, D. M. and Reinhold, P. and Schaper, N. and Temps, T. T.}}, pages = {{126--129}}, title = {{{Studiengangsmanagement an der Fakultät für Wirtschaftswissenschaften. Organisation, Arbeitsgebiete und Herausforderungen.}}}, year = {{2018}}, } @inbook{56342, author = {{Kokew, Stephan Matthias}}, booktitle = {{Diversität historisch. Repräsentationen und Praktiken gesellschaftlicher Differenzierung im Wandel}}, editor = {{Florin, Moritz and Gutsche, Victoria and Krentz, Natalie}}, isbn = {{9783839444016}}, pages = {{193--209}}, title = {{{Islamische Konzeptionen zum Umgang mit religiöser Diversität: Zarathustrier und Buddhisten}}}, doi = {{10.1515/9783839444016-010}}, year = {{2018}}, } @inbook{56343, author = {{Kokew, Stephan Matthias}}, booktitle = {{Islamisches Recht in Wissenschaft und Praxis. Festschrift für Hans-Georg Ebert}}, editor = {{Elliesie, Hatem and Anam, Beate and Hanstein, Thoralf}}, pages = {{329--345}}, title = {{{Überlegungen zum Prinzip der Schutzverpflichtung als Bestandteil islamischer Schutzgewährung}}}, doi = {{10.3726/b15031}}, year = {{2018}}, } @inbook{56349, author = {{Barzel, Bärbel and Biehler, Rolf and Blömeke, Sigrid and Brandtner, Regine and Bruns, Julia and Dohrmann, Christian and Kortenkamp, Ulrich and Lange, Thomas and Leuders, Timo and Rösken-Winter, Bettina and Scherer, Petra and Selter, Christoph}}, booktitle = {{Konzepte und Studien zur Hochschuldidaktik und Lehrerbildung Mathematik}}, isbn = {{9783658190279}}, issn = {{2197-8751}}, pages = {{7--40}}, publisher = {{Springer Fachmedien Wiesbaden}}, title = {{{Das Deutsche Zentrum für Lehrerbildung Mathematik – DZLM}}}, doi = {{10.1007/978-3-658-19028-6_2}}, year = {{2018}}, } @book{56354, editor = {{Biehler, Rolf and Budde, Lea and Frischemeier, Daniel and Heinemann, B. and Podworny, Susanne and Schulte, Carsten and Wassong, Thomas}}, publisher = {{Universitätsbibliothek Paderborn}}, title = {{{Paderborn symposium on data science education at school level 2017: The collected extended abstracts. Universitätsbibliothek Paderborn}}}, year = {{2018}}, } @article{56361, author = {{Biehler, Rolf and Frischemeier, Daniel and Podworny, Susanne}}, issn = {{1863-9690}}, journal = {{ZDM}}, number = {{7}}, pages = {{1237--1251}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Elementary preservice teachers’ reasoning about statistical modeling in a civic statistics context}}}, doi = {{10.1007/s11858-018-1001-x}}, volume = {{50}}, year = {{2018}}, } @article{56360, author = {{Biehler, Rolf and Frischemeier, Daniel and Podworny, Susanne}}, journal = {{Zeitschrift für Hochschulentwicklung}}, number = {{2}}, pages = {{169--182}}, title = {{{ Civic Engagement in Higher Education: A university course in civic statistics for mathematics preservice teachers - Civic Engagement in Higher Education: A university course in civic statistics for mathematics preservice teachers}}}, doi = {{10.3217/ZFHE-13-02/11}}, volume = {{13}}, year = {{2018}}, } @inproceedings{56351, author = {{Biehler, Rolf}}, booktitle = {{Looking back, looking forward. Proceedings of the Tenth International Conference on Teaching Statistics (ICOTS10, July 8–13), Kyoto, Japan. https://iase-web. org/icots/10/proceedings/pdfs/ICOTS10_1B1. pdf}}, title = {{{Design principles, realizations and uses of software supporting the learning and the doing of statistics: A reflection on developments since the late 1990s}}}, year = {{2018}}, } @inbook{56355, author = {{Biehler, Rolf and Fleischmann, Yael and Gold, Alexander}}, booktitle = {{Beiträge zum Mathematikunterricht 2018, Band I}}, pages = {{277--280}}, publisher = {{WTM-Verlag}}, title = {{{Konzepte für die Gestaltung von Online-Vorkursen für Mathematik und für ihre Integration in Blended-Learning-Szenarien}}}, year = {{2018}}, } @article{56362, author = {{Biehler, Rolf and Frischemeier, Daniel and Podworny, Susanne and Wassong, Thomas and Budde, Lea and Heinemann, B. and Schulte, Carsten}}, journal = {{Archives of Data Science, Series A}}, number = {{1}}, title = {{{Data Science and Big Data in Upper Secondary Schools: A Module to Build up First Components of Statistical Thinking in a Data Science Curriculum}}}, doi = {{10.5445/KSP/1000087327/28}}, volume = {{5}}, year = {{2018}}, } @article{56375, abstract = {{Apple is one of the most dominant and most admired computer companies in the world. But hidden behind the clean surface of Apple’s advanced gadgets lies a dirty world of work. This paper focuses on the dark side of the information age by looking at working conditions in the workshops of Apple’s contract manufacturers in China. For this purpose I suggest a systematic model of working conditions that can be used for assessing and comparing work in different industries. Departing from Karl Marx’s circuit of capital it identifies elements that shape working conditions throughout the capital accumulation process including productive forces, relations of production, the production process, products, and labour legislation. Subsequently I apply this model to the realm of electronics manufacturing. Based on research conducted by corporate watchdogs this paper provides detailed insights into the work and life reality of workers in Apple’s first tier supplier factories. An analysis of Apple’s response to labour rights allegations furthermore reveals three ideological patterns that rather obscure existing problems than offering viable solutions.}}, author = {{Sandoval, Marisol}}, issn = {{1726-670X}}, journal = {{tripleC: Communication, Capitalism & Critique. Open Access Journal for a Global Sustainable Information Society}}, number = {{2}}, pages = {{318--347}}, publisher = {{Information Society Research}}, title = {{{Foxconned Labour as the Dark Side of the Information Age: Working Conditions at Apple’s Contract Manufacturers in China.}}}, doi = {{10.31269/triplec.v11i2.481}}, volume = {{11}}, year = {{2018}}, }