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Dr. Michael Hemmer
Ehemaliger Wissenschaftlicher Mitarbeiter

View Michael Hemmer's profile on LinkedIn

Projects

NameShort Description
Kunst!Kunst! Exact solutions and lower bounds for art gallery problems
NameShort Description
Bounding Volume HierarchyBounding Volume Hierarchy A bounding volume hierarchy.
Computing Optimal PolygonsPolygon GenerationPolygon Generation Generating Polygons.
Parallel Motion PlanningParallel Motion Planning Scheduling a Swarm of Robots with Efficiency Guarantees
Swarm RobotsSwarm Robots Scalable distributed algorithms for large robot swarms
Terrain VisibilityTerrain Visibility Visibility computations in terrains.
Tile AssemblyTile Assembly Assembling polyominoes with tiles in different models.
TiltTilt Controlling cell-scale robots with uniform external actuators.

Teaching

Summer Term 2015

TitleLecturerCreditsHours
Geometric AlgorithmsDr. Michael Hemmer52+1
Seminar AlgorithmikProf. Dr. Sándor P. Fekete50+2
SEP 2015: Labyrinth GamesProf. Dr. Sándor P. Fekete80+5

Winter Term 2014/2015

TitleLecturerCreditsHours
Computational GeometryDr. Michael Hemmer52+1+1

Summer Term 2014

TitleLecturerCreditsHours
Geometric AlgorithmsDr. Michael Hemmer52+1

Winter Term 2013/2014

TitleLecturerCreditsHours
Seminar AlgorithmikProf. Dr. Sándor P. Fekete50+2

Summer Term 2013

TitleLecturerCreditsHours
Algorithm Engineering Dr. Alexander Kröller52+1+1
Online AlgorithmsProf. Dr. Sándor P. Fekete52+1+1

Publications

  • O. Salzman, M. Hemmer and D. Halperin: On the Power of Manifold Samples in Exploring Configuration Spaces and the Dimensionality of Narrow Passages, in Automation Science and Engineering, IEEE Transactions on, Vol. 12, No. 2, pages 529-538, April 2015 (MMS-TASE-2015, DOI, BibTeX)
  • Andreas von Dziegielewski, Michael Hemmer and Elmar Schömer: High Precision Conservative Surface Mesh Generation for Swept Volumes, in IEEE T. Automation Science and Engineering, Vol. 12, No. 1, pages 183-191, 2015 (dhs-hpcsmgfsw-15, DOI, BibTeX)
  • Sándor P. Fekete, Winfried Hellmann, Michael Hemmer, Arne Schmidt and Julian Troegel: Computing MaxMin Edge Length Triangulations, in Proceedings of the Seventeenth Workshop on Algorithm Engineering and Experiments, ALENEX 2015, San Diego, CA, USA, January 5, 2015, pages 55-69, 2015 (fhhst-cmmelt-15, DOI, BibTeX)
  • F. Bungiu, M. Hemmer, J. Hershberger, K. Huang and A. Kröller: Efficient Computation of Visibility Polygons, in Proceedings of the 30th European Workshop on Computational Geometry (EuroCG 2014), March 2014 (BHHHK-texp-2014, BibTeX, http://arxiv.org/abs/1403.3905)
  • Sándor P. Fekete, Stephan Friedrichs and Michael Hemmer: Complexity of the General Chromatic Art Gallery Problem, in Proceedings of the 30th European Workshop on Computational Geometry (EuroCG 2014), March 2014 (ffh-cotgcagp-14, BibTeX, http://arxiv.org/abs/1403.2972)
  • Maximilian Ernestus, Stephan Friedrichs, Michael Hemmer, Jan Kokemüller, Alexander Kröller, Mahdi Moeini and Christiane Schmidt: Algorithms for Art Gallery Illumination, in CoRR, Vol. abs/1410.5952, 2014 (efhkkms-afagi-14, BibTeX)
  • Sándor P. Fekete, Stephan Friedrichs, Michael Hemmer, Joseph B. M. Mitchell and Christiane Schmidt: On the Chromatic Art Gallery Problem, in Proceedings of the 26th Canadian Conference on Computational Geometry, CCCG 2014, Halifax, Nova Scotia, Canada, 2014, 2014 (ffhms-otcagp-14, BibTeX)
  • Stephan Friedrichs, Michael Hemmer and Christiane Schmidt: A PTAS for the Continuous 1.5D Terrain Guarding Problem, in Proceedings of the 26th Canadian Conference on Computational Geometry, CCCG 2014, Halifax, Nova Scotia, Canada, 2014, 2014 (fhs-apftc15dtgp-14, BibTeX, http://arxiv.org/abs/1405.6564)
  • Michael Hemmer, Michal Kleinbort and Dan Halperin: Optimal randomized incremental construction for guaranteed logarithmic planar point location, in CoRR, Vol. abs/1410.5602, 2014 (hkh-oricfglppl-14, BibTeX)
  • Pedro Jussieu de Rezende, Cid C. de Souza, Stephan Friedrichs, Michael Hemmer, Alexander Kröller and Davi C. Tozoni: Engineering Art Galleries, in CoRR, Vol. abs/1410.8720, 2014 (rshkt-eag-14, BibTeX)
  • Oren Salzman, Michael Hemmer, Barak Raveh and Dan Halperin: Motion Planning via Manifold Samples, in Algorithmica, pages 1-19, Springer-Verlag, 2013 (MMS-ALGORITMICA-2013, DOI, BibTeX)
  • A. von Dziegielewski, M. Hemmer and E. Schomer: High Precision Conservative Surface Mesh Generation for Swept Volumes, in Automation Science and Engineering, IEEE Transactions on, Vol. PP, No. 99, pages 1-9, 2013 (swept-TASE-2013, DOI, BibTeX)
  • Efi Fogel, Michael Hemmer, Asaf Porat and Dan Halperin: Lines through Segments in 3D Space, in Proceedings of the 20th European Symposium on Algorithms, pages 455-466, September 2012 (LTS-ESA-2012, DOI, BibTeX)
  • Michael Hemmer, Michal Kleinbort and Dan Halperin: Improved Implementation of Point Location in General Two-Dimensional Subdivisions, in Proceedings of the 20th European Symposium on Algorithms, pages 611-623, September 2012 (PPL-HKH-2012, DOI, BibTeX)
  • Andreas von Dziegielewski, Michael Hemmer and Elmar Schömer: High quality conservative surface mesh generation for swept volumes, in Proceedings of the 2012 IEEE International Conference on Robotics and Automation (ICRA), St. Paul, Minnesota, USA, pages 764-769, May 2012 (SV-vDHS-2012, DOI, BibTeX)
  • Ron Wein, Eric Berberich, Efi Fogel, Dan Halperin, Michael Hemmer, Oren Salzman and Baruch Zukerman: 2D Arrangements, CGAL - Computational Geometry Algorithms Library, release 4.0, CGAL, May 2012 (arr-hemmer-2007, BibTeX)
  • Efi Fogel, Michael Hemmer, Asaf Porat and Dan Halperin: Lines Through Segments in Three Dimensional Space, Assisi, Perugia, Italy, pages 4, University of Perguia, March 2012 (LTS-EUROCG-FHPH-2012, BibTeX, At 28th European Workshop on Computational Geometry)
  • Michael Hemmer, Michal Kleinbort and Dan Halperin: Improved Implementation of Point Location in General Two-Dimensional Subdivisions, in CoRR, Vol. abs/1205.5434, 2012 (DBLP:journals-corr-abs-1205-5434, BibTeX)
  • Oren Salzman, Michael Hemmer and Dan Halperin: On the Power of Manifold Samples in Exploring Configuration Spaces and the Dimensionality of Narrow Passages, in WAFR, pages 313-329, 2012 (MMS-WAFR-2012, BibTeX)
  • Oren Salzman, Michael Hemmer, Barak Raveh and Dan Halperin: Motion planning via manifold samples, in Proceedings of the 19th European Symposium on Algorithms, ESA'11, Saarbrücken, Germany, pages 493-505, Springer, September 2011 (MMS-ESA-2011, DOI, BibTeX, http://arxiv.org/abs/1107.0803)
  • Eric Berberich, Michael Hemmer and Michael Kerber: A generic algebraic kernel for non-linear geometric applications, in Proceedings of the 27th annual ACM Symposium on Computational Geometry, SoCG '11, Paris, France, pages 179-186, ACM, June 2011 (AK-SOCG-2011, DOI, BibTeX)
  • Andreas von Dziegielewski, Michael Hemmer and Elmar Schömer: High quality conservative surface mesh generation for swept volumes, Morschach, Switzerland, pages 4, ETH Zurich, March 2011 (SV-vDHS-2011, BibTeX, At 27th European Workshop on Computational Geometry)
  • Michael Hemmer, Laurent Dupont, Sylvain Petitjean and Elmar Schömer: A complete, exact and efficient implementation for computing the edge-adjacency graph of an arrangement of quadrics, in J. Symb. Comput., Vol. 46, No. 4, pages 467-494, 2011 (HemmerDPS11, DOI, BibTeX)
  • Eric Berberich, Michael Hemmer, Sylvain Lazard, Luis Penaranda and Monique Teillaud: Algebraic Kernel, CGAL - Computational Geometry Algorithms Library, release 3.6, CGAL, October 2010 (cgal:AK-SPECS, BibTeX)
  • Eric Berberich, Michael Hemmer, Michael Kerber, Sylvain Lazard, Luis Penaranda and Monique Teillaud: Algebraic Kernel, CGAL - Computational Geometry Algorithms Library, release 3.7-4.1, CGAL, October 2010 (cgal:AK, BibTeX)
  • Michael Hemmer, Ophir Setter and Dan Halperin: Constructing the Exact Voronoi Diagram of Arbitrary Lines in Space, in Proceedings of the 18th European Symposium on Algorithms, LNCS, pages 398-409, September 2010 (VOL-ESA-2011, DOI, BibTeX)
  • Michael Hemmer, Ophir Setter and Dan Halperin: Constructing the Exact Voronoi Diagram of Arbitrary Lines in Space, INRIA, Research Report 7273, 2010 (geometrica-7273t, BibTeX)
  • Eric Berberich, Michael Hemmer and Michael Kerber: A Generic Algebraic Kernel for Non-linear Geometric Applications, INRIA, Research Report 7274, 2010 (geometrica-7274t, BibTeX)
  • Michael Sagraloff, Michael Kerber and Michael Hemmer: Certified Complex Root Isolation via Adaptive Root Separation Bounds, in Proceedings of the 9th Asian Symposium on Computer Mathematics, Fukuoka, Japan, Math-for-Industry (MI), COE, December 2009 (SKH-CCRI-2009, BibTeX)
  • Michael Hemmer, Elias P. Tsigaridas, Zafeirakis Zafeirakopoulos, Ioannis Z. Emiris, Menelaos I. Karavelas and Bernard Mourrain: Experimental evaluation and cross-benchmarking of univariate real solvers, in Proceedings of the 2009 Conference on Symbolic Numeric Computation, Kyoto, Japan, pages 45-54, ACM, August 2009 (HTZ-CROSSAK-2009, DOI, BibTeX)
  • Michael Hemmer and Dominik Hülse: Generic implementation of a modular GCD over Algebraic Extension Fields, Brussels, Belgium, pages 4, Université Libre de Bruxelles, March 2009 (hh-mgcd-2009, BibTeX, At 25th European Workshop on Computational Geometry)
  • Michael Hemmer, Sebastian Limbach and Elmar Schömer: Continued Work on the Computation of an Exact Arrangement of Quadrics, Brussels, Belgium, pages 4, Université Libre de Bruxelles, March 2009 (hls-qarr-2009, BibTeX, At 25th European Workshop on Computational Geometry)
  • Michael Hemmer: Modular Arithmetic, CGAL - Computational Geometry Algorithms Library, release 3.4, CGAL, January 2009 (mod-hemmer-2009, BibTeX)
  • Michael Hemmer: Polynomials, CGAL - Computational Geometry Algorithms Library, release 3.4, CGAL, January 2009 (poly-hemmer-2009, BibTeX)
  • Michael Hemmer: Exact Computation of the Adjacency Graph of an Arrangement of Quadrics, D 55122 Mainz, Johannes Gutenberg-Universität Mainz, PhD thesis, Johannes Gutenberg-Universität Mainz, May 2008 (Hemmer2008, BibTeX)
  • Eric Berberich, Michael Hemmer, Menelaos I. Karavelas, Sylvain Pion, Monique Teillaud and Elias P. Tsigaridas: Prototype implementation of the algebraic kernel, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-121202-01, pages 35, April 2008 (ACS-TR-121202-01, BibTeX)
  • Michael Hemmer, Laurent Dupont, Sylvain Petitjean and Elmar Schömer: Complete, Exact and Efficient Implementation for Computing the Adjacency Graph of an Arrangment of Quadrics, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-241402-01, pages 13, April 2008 (ACS-TR-241402-01, BibTeX)
  • Michael Hemmer: CGAL package: Algebraic Foundations, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-243400-04, pages 103, April 2008 (ACS-TR-243400-04, BibTeX)
  • Michael Hemmer: CGAL package for modular arithmetic operations, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-243406-01, pages 17, April 2008 (ACS-TR-243406-01, BibTeX)
  • Michael Hemmer: Evaluation of different approaches in 3D curved kernel for arrangements of quadrics, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-363501-01, pages 19, April 2008 (ACS-TR-363501-01, BibTeX)
  • Ioannis Z. Emiris, Michael Hemmer, Menelaos I. Karavelas, Sebastian Limbach, Bernard Mourrain, Elias P. Tsigaridas and Zafeirakis Zafeirakopoulos: Cross-benchmarks of univariate algebraic kernels, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-363602-02, pages 35, April 2008 (ACS-TR-363602-02, BibTeX)
  • Ioannis Z. Emiris, Michael Hemmer, Elias P. Tsigaridas and Georg Tzoumas: Voronoi diagram of ellipses: CGAL-based implementation, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-363603-01, pages 18, April 2008 (ACS-TR-363603-01, BibTeX)
  • Michael Hemmer and Sebastian Limbach: Arrangements of quadrics in 3D: continued work on experimental implementation, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-363606-01, pages 46, 2008 (ACS-TR-363606-01, BibTeX)
  • Laurent Dupont, Michael Hemmer, Sylvain Petitjean and Elmar Schömer: Complete, Exact and Efficient Implementation for Computing the Adjacency Graph of an Arrangment of Quadrics, in Proceedings of the 15th Annual European Symposium on Algorithms, Eilat, Israel, pages 633-644, Springer, October 2007 (Hemmer2007, DOI, BibTeX)
  • Michael Hemmer: Algebraic Foundations, CGAL - Computational Geometry Algorithms Library, release 3.3, CGAL, May 2007 (af-hemmer-2007, BibTeX)
  • Michael Hemmer, Susan Hert, Lutz Kettner, Sylvain Pion and Stefan Schirra: Number Types, CGAL - Computational Geometry Algorithms Library, release 3.3, CGAL, May 2007 (nt-hemmer-2007, BibTeX)
  • Michael Hemmer and Sebastian Limbach: Benchmarks on a generic univariate algebraic kernel, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-243306-03, pages 33, April 2007 (ACS-TR-243306-03, BibTeX)
  • Eric Berberich and Michael Hemmer: Definition of the 3D Quadrical Kernel Content, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-243302-02, pages 25, April 2007 (acs:bh-dtqkc-07, BibTeX)
  • Eric Berberich, Michael Hemmer, Menelaos I. Karavelas and Monique Teillaud: Revision of interface specification of algebraic kernel, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-243301-01, pages 100, April 2007 (acs:bhkt-risak-06, BibTeX)
  • Michael Hemmer and Dominik Hülse: Traits classes for polynomial gcd computation over algebraic extensions, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-241405-03, pages 28, 2007 (ACS-TR-241405-03, BibTeX)
  • Eric Berberich, Michael Hemmer, Menelaos I. Karavelas, Sylvain Pion, Monique Teillaud and Elias P. Tsigaridas: Interface specification of algebraic kernel, 9700 AB Groningen THE NETHERLANDS, University of Groningen, Technical Report ACS-TR-123101-01, pages 27, April 2006 (ACS-TR-123101-01, BibTeX)
  • Eric Berberich, Arno Eigenwillig, Michael Hemmer, Susan Hert, Lutz Kettner, Kurt Mehlhorn, Joachim Reichel, Susanne Schmitt, Elmar Schömer and Nicola Wolpert: EXACUS: Efficient and exact algorithms for curves and surfaces, in Proceedings of the 13th Annual European Symposium on Algorithms (ESA 2005), Palma de Mallorca, Spain, pages 155-166, Springer, October 2005 (Berberich05, DOI, BibTeX)
  • Eric Berberich, Michael Hemmer, Lutz Kettner, Elmar Schömer and Nicola Wolpert: An Exact, Complete and Efficient Implementation for Computing Planar Maps of Quadric Intersection Curves, in Proceedings of the 21st Annual Symposium on Computational Geometry (SCG'05), Pisa, Italy, pages 99-106, ACM, June 2005 (bhksw-eceicpmqic-05, DOI, BibTeX)
  • Eric Berberich, Arno Eigenwillig, Ioannis Z. Emiris, Efraim Fogel, Michael Hemmer, Dan Halperin, Athanasios Kakargias, Lutz Kettner, Kurt Mehlhorn, Sylvain Pion, Elmar Schömer, Monique Teillaud, Ron Wein and Nicola Wolpert: An Empirical Comparison of Software for Constructing Arrangements of Curved Arcs, Sophia Antipolis, France, Effective Computational Geometry for Curves and Surfaces, Report ECG-TR-361200-01, pages 11, 2004 (beef-ecscaca-04, BibTeX)
  • Eric Berberich, Arno Eigenwillig, Michael Hemmer, Susan Hert, Lutz Kettner, Kurt Mehlhorn, Joachim Reichel, Susanne Schmitt, Elmar Schömer, Dennis Weber and Nicola Wolpert: EXACUS: Efficient and Exact Algorithms for Curves and Surfaces, Sophia Antipolis, France, Effective Computational Geometry for Curves and Surfaces, Technical Report ECG-TR-361200-02, pages 8, 2004 (ecg:beh-eeeac-04, BibTeX)
  • Michael Hemmer, Lutz Kettner and Elmar Schömer: Effects of a Modular Filter on Geometric Applications, Sophia Antipolis, France, Effective Computational Geometry for Curves and Surfaces, Technical Report ECG-TR-363111-01, pages 7, 2004 (ecg:hks-emfga-04, BibTeX)
  • Eric Berberich, Arno Eigenwillig, Michael Hemmer, Susan Hert, Kurt Mehlhorn and Elmar Schömer: A Computational Basis for Conic Arcs and Boolean Operations on Conic Polygons, in Proceedings of the 10th European Symposium on Algorithms Algorithms, Rome, Italy, pages 174-186, Springer, September 2002 (behhms-cbcabocp-2002, DOI, BibTeX)
  • Michael Hemmer: Reliable Computation of Planar and Spatial Arrangements of Quadrics, Masterarbeit, D 66123 Saarbrücken, Universität des Saarlandes, Masters thesis, April 2002 (Hemmer2002, BibTeX)
  • Nicola Geismann, Michael Hemmer and Elmar Schömer: Computing a 3-dimensional Cell in an Arrangement of Quadrics: Exactly and Actually!, in Proceedings of the 17th Annual Symposium on Computational Geometry (SCG-01), Boston, Massachusetts, USA, pages 264-273, ACM, June 2001 (ghs-qsi-01, DOI, BibTeX)
  • Nicola Geismann, Michael Hemmer and Elmar Schömer: The Convex Hull of Ellipsoids (Video), in Proceedings of the 17th Annual Symposium on Computational Geometry (SCG-01), Bosten, Massachusetts, USA, pages 321-322, ACM, 2001 (ghs-che-01, DOI, BibTeX)

last changed 2015-04-27, 17:38 (dynamic content), maintained by Dr. Michael Hemmer

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