Alexander K. Hartmann

Publication Activity (10 Years)

Years Active: 2000-2019
Publications (10 Years): 8

Top Topics

Symmetry Breaking

Phase Transition

Linear Programming

Top Venues

J. Glob. Optim.

Publications

Alexander K. Hartmann, Oliver Melchert, Christoph Norrenbrock
From Spin Glasses to Negative-Weight Percolation. Entropy 21 (2) (2019)
Hendrik Schawe, Jitesh Kumar Jha, Alexander K. Hartmann
Replica Symmetry and Replica Symmetry Breaking for the Traveling Salesperson Problem. CoRR (2018)
Hendrik Schawe, Alexander K. Hartmann
Large-deviation properties of the largest biconnected component for random graphs. CoRR (2018)
Satoshi Takabe, Koji Hukushima, Alexander K. Hartmann
Large-deviation Properties of Linear-programming Computational Hardness of the Vertex Cover Problem. CoRR (2018)
Hendrik Schawe, Roman Bleim, Alexander K. Hartmann
Phase Transitions of the Typical Algorithmic Complexity of the Random Satisfiability Problem Studied with Linear Programming. CoRR (2017)
Alexander K. Hartmann
Practical Introduction to Clustering Data. CoRR (2016)
Markus Manssen, Alexander K. Hartmann
Matrix-power energy-landscape transformation for finding NP-hard spin-glass ground states. J. Glob. Optim. 61 (1) (2015)
Hendrik Schawe, Alexander K. Hartmann
Phase Transitions of Traveling Salesperson Problems solved with Linear Programming and Cutting Planes. CoRR (2015)
Alexander K. Hartmann
Large-deviation properties of resilience of transportation networks. CoRR (2014)
Timo Dewenter, Alexander K. Hartmann
Phase transition for cutting-plane approach to vertex-cover problem CoRR (2012)
Oliver Melchert, Alexander K. Hartmann
A dedicated algorithm for calculating ground states for the triangular random bond Ising model. Comput. Phys. Commun. 182 (9) (2011)
Stefan Wolfsheimer, Inke Herms, Sven Rahmann, Alexander K. Hartmann
Accurate statistics for local sequence alignment with position-dependent scoring by rare-event sampling. BMC Bioinform. 12 (2011)
Alexander K. Hartmann
Large-deviation properties of largest component for random graphs CoRR (2010)
Martin Pelikan, Rajiv Kalapala, Alexander K. Hartmann
Hybrid evolutionary algorithms on minimum vertex cover for random graphs. GECCO (2007)
Martin Pelikan, Alexander K. Hartmann
Obtaining ground states of ising spin glasses via optimizing bonds instead of spins. GECCO (2007)
Stefan Wolfsheimer, Bernd Burghardt, Alexander K. Hartmann
Local sequence alignments statistics: deviations from Gumbel statistics in the rare-event tail. Algorithms Mol. Biol. 2 (2007)
Martin Pelikan, Alexander K. Hartmann, Kumara Sastry
Hierarchical BOA, Cluster Exact Approximation, and Ising Spin Glasses. PPSN (2006)
Alexander K. Hartmann, Wolfgang Barthel, Martin Weigt
Phase transition and finite-size scaling in the vertex-cover problem. Comput. Phys. Commun. 169 (1-3) (2005)
Wolfgang Barthel, Alexander K. Hartmann, Martin Weigt
Solving satisfiability problems by fluctuations: The dynamics of stochastic local search algorithms CoRR (2003)
Alexander K. Hartmann, Martin Weigt
Statistical mechanics perspective on the phase transition in vertex covering of finite-connectivity random graphs. Theor. Comput. Sci. 265 (1-2) (2001)
Wolfgang Barthel, Alexander K. Hartmann, Michele Leone, Federico Ricci-Tersenghi, Martin Weigt, Riccardo Zecchina
Hiding solutions in random satisfiability problems: A statistical mechanics approach CoRR (2001)
Martin Weigt, Alexander K. Hartmann
Typical solution time for a vertex-covering algorithm on finite-connectivity random graphs CoRR (2000)
Alexander K. Hartmann, Martin Weigt
Statistical mechanics perspective on the phase transition in vertex covering finite-connectivity random graphs CoRR (2000)
Martin Weigt, Alexander K. Hartmann
The number of guards needed by a museum: A phase transition in vertex covering of random graphs CoRR (2000)