The Floyd–Warshall algorithm on graphs with negative cycles S Hougardy Information Processing Letters 110 (8-9), 279-281, 2010 | 305 | 2010 |
A 1.598 approximation algorithm for the Steiner problem in graphs S Hougardy, HJ Prömel Proceedings of the tenth annual ACM-SIAM symposium on Discrete algorithms …, 1999 | 196 | 1999 |
A simple approximation algorithm for the weighted matching problem DE Drake, S Hougardy Information Processing Letters 85 (4), 211-213, 2003 | 192 | 2003 |
Uniquely colourable graphs and the hardness of colouring graphs of large girth T Emden-Weinert, S Hougardy, B Kreuter Combinatorics, Probability and Computing 7 (4), 375-386, 1998 | 104 | 1998 |
A linear-time approximation algorithm for weighted matchings in graphs DED Vinkemeier, S Hougardy ACM Transactions on Algorithms (TALG) 1 (1), 107-122, 2005 | 101 | 2005 |
Approximation algorithms for the Steiner tree problem in graphs C Gropl, S Hougardy, T Nierhoff, HJ Promel COMBINATORIAL OPTIMIZATION-DORDRECHT- 11, 235-280, 2001 | 99 | 2001 |
On approximation algorithms for the terminal Steiner tree problem DE Drake, S Hougardy Information Processing Letters 89 (1), 15-18, 2004 | 91 | 2004 |
Comparison of 2D Similarity and 3D Superposition. Application to Searching a Conformational Drug Database M Thimm, A Goede, S Hougardy, R Preissner Journal of chemical information and computer sciences 44 (5), 1816-1822, 2004 | 74 | 2004 |
Classes of perfect graphs S Hougardy Discrete Mathematics 306 (19), 2529-2571, 2006 | 68* | 2006 |
The approximation ratio of the 2-Opt Heuristic for the metric Traveling Salesman Problem S Hougardy, F Zaiser, X Zhong Operations Research Letters 48 (4), 401-404, 2020 | 48 | 2020 |
Dijkstra meets Steiner: a fast exact goal-oriented Steiner tree algorithm S Hougardy, J Silvanus, J Vygen Mathematical Programming Computation 9, 135-202, 2017 | 48 | 2017 |
Linear time local improvements for weighted matchings in graphs DE Drake, S Hougardy Experimental and Efficient Algorithms: Second International Workshop, WEA …, 2003 | 47 | 2003 |
Improved linear time approximation algorithms for weighted matchings DE Drake, S Hougardy International Workshop on Randomization and Approximation Techniques in …, 2003 | 45 | 2003 |
Does the Jones polynomial detect unknottedness? OT Dasbach, S Hougardy Experimental Mathematics 6 (1), 51-56, 1997 | 40 | 1997 |
Probabilistically checkable proofs and their consequences for approximation algorithms S Hougardy, HJ Prömel, A Steger Discrete Mathematics 136 (1-3), 175-223, 1994 | 40 | 1994 |
Approximating weighted matchings in parallel S Hougardy, DE Vinkemeier Information Processing Letters 99 (3), 119-123, 2006 | 39 | 2006 |
An exact algorithm for wirelength optimal placements in VLSI design J Funke, S Hougardy, J Schneider Integration 52, 355-366, 2016 | 38 | 2016 |
On wing perfect graphs S Hougardy Journal of Graph Theory 31, 51-66, 1999 | 35* | 1999 |
Hard to solve instances of the euclidean traveling salesman problem S Hougardy, X Zhong Mathematical Programming Computation 13, 51-74, 2021 | 33 | 2021 |
Approximating minimum spanning sets in hypergraphs and polymatroids G Baudis, C Gröpl, S Hougardy, T Nierhoff, HJ Prömel Proc. ICALP, 2000 | 32 | 2000 |