Mark Ortmann
Contact
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Personal
02/2013 - 08/2013 | Internship with Der-Tsai Lee, ,National Chung Hsing University, Taichung (Taiwan) |
since 05/2012 | Research assistant with Prof. Dr. Ulrik Brandes, Algorithmics Group, University of Konstanz |
10/2006 – 03/2012 | Information Engineering studies (B.Sc., M.Sc.), University of Konstanz. |
Research interests
- Efficient Graph Algorithms
- Graph Drawing
- Network Analysis
Teaching
SS 2014 | Assignments for lecture Big Data and Scripting (LSF entry) |
WS 2013 | Assignments for lecture Algorithms and Data structures (LSF entry) |
Seminar and Project Reverse engineering RSiena (LSF entry Bachelor, LSF entry Master)) | |
WS 2012 | Assignments for lecture Algorithms and Data structures (LSF entry) |
Publications
Journal
[1] | Mark Ortmann, Ulrik Brandes, "Efficient orbit-aware triad and quad census in directed and undirected graphs", Applied Network Science, vol. 2, no. 1, Jun 2017, pp. 13. [bibtex] [html] [doi] |
[2] | Arlind Nocaj, Mark Ortmann and Ulrik Brandes, "Adaptive Disentanglement Based on Local Clustering in Small-World Network Visualization", IEEE Transactions on Visualization and Computer Graphics, vol. 22, no. 6, June 2016, pp. 1662-1671. [bibtex] [html] [doi] |
[3] | Arlind Nocaj, Mark Ortmann and Ulrik Brandes, "Untangling the Hairballs of Multi-Centered, Small-World Online Social Media Networks", Journal of Graph Algorithms and Applications, 2015. [bibtex] [html] [doi] |
Proceedings
[4] | Ulrik Brandes, Moritz Heine, Julian Müller and Mark Ortmann, "Positional Dominance: Concepts and Algorithms", in Algorithms and Discrete Applied Mathematics - Third International Conference, CALDAM 2017, Sancoale, Goa, India, February 16-18, 2017, Proceedings, D. R. Gaur, N. S. Narayanaswamy, Eds., Springer, pp. 60-71. [bibtex] [html] [doi] |
[5] | Mark Ortmann, Mirza Klimenta and Ulrik Brandes, "A Sparse Stress Model", in Graph Drawing and Network Visualization - 24th International Symposium, GD 2016, Athens, Greece, September 19-21, 2016, Revised Selected Papers, pp. 18-32 (Best Paper Award, arXiv version). [bibtex] [html] [doi] |
[6] | Mark Ortmann, Ulrik Brandes, "Quad Census Computation: Simple, Efficient, and Orbit-Aware", in Advances in Network Science - 12th International Conference and School, NetSci-X 2016, Wroclaw, Poland, January 11-13, 2016, Proceedings, pp. 1-13. [bibtex] [html] [doi] |
[7] | Mark Ortmann, Ulrik Brandes, "Triangle Listing Algorithms: Back from the Diversion", in 2014 Proceedings of the Sixteenth Workshop on Algorithm Engineering and Experiments, ALENEX 2014, Portland, Oregon, USA, January 5, 2014, pp. 1-8. [bibtex] [html] [doi] |
[8] | Arlind Nocaj, Mark Ortmann and Ulrik Brandes, "Untangling Hairballs - From 3 to 14 Degrees of Separation", in Graph Drawing - 22nd International Symposium, GD 2014, Würzburg, Germany, September 24-26, 2014, Revised Selected Papers, pp. 101-112. [bibtex] [html] [doi] |
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