2009 | ||
---|---|---|
95 | EE | Refael Hassin, Asaf Levin, Shlomi Rubinstein: Approximation algorithms for maximum latency and partial cycle cover. Discrete Optimization 6(2): 197-205 (2009) |
94 | EE | Refael Hassin, Justo Puerto, Francisco R. Fernández: The use of relative priorities in optimizing the performance of a queueing system. European Journal of Operational Research 193(2): 476-483 (2009) |
2008 | ||
93 | EE | Esther M. Arkin, Refael Hassin: The k-path tree matroid and its applications to survivable network design. Discrete Optimization 5(2): 314-322 (2008) |
92 | EE | Refael Hassin, Ariel Keinan: Greedy heuristics with regret, with application to the cheapest insertion algorithm for the TSP. Oper. Res. Lett. 36(2): 243-246 (2008) |
91 | EE | Refael Hassin, Danny Segev: Rounding to an integral program. Oper. Res. Lett. 36(3): 321-326 (2008) |
2007 | ||
90 | EE | Refael Hassin, Jérôme Monnot, Danny Segev: The Complexity of Bottleneck Labeled Graph Problems. WG 2007: 328-340 |
89 | EE | Refael Hassin, Asaf Levin: Flow trees for vertex-capacitated networks. Discrete Applied Mathematics 155(4): 572-578 (2007) |
88 | EE | Refael Hassin, Jérôme Monnot, Danny Segev: Approximation algorithms and hardness results for labeled connectivity problems. J. Comb. Optim. 14(4): 437-453 (2007) |
2006 | ||
87 | EE | Refael Hassin, Jérôme Monnot, Danny Segev: Approximation Algorithms and Hardness Results for Labeled Connectivity Problems. MFCS 2006: 480-491 |
86 | EE | Refael Hassin, Einat Or: A Maximum Profit Coverage Algorithm with Application to Small Molecules Cluster Identification. WEA 2006: 265-276 |
85 | EE | Refael Hassin, Asaf Levin: The minimum generalized vertex cover problem. ACM Transactions on Algorithms 2(1): 66-78 (2006) |
84 | EE | Refael Hassin, Danny Segev: Robust subgraphs for trees and paths. ACM Transactions on Algorithms 2(2): 263-281 (2006) |
83 | EE | Refael Hassin, Shlomi Rubinstein: Erratum to "An approximation algorithm for maximum triangle packing": [Discrete Applied Mathematics 154 (2006) 971-979]. Discrete Applied Mathematics 154(18): 2620 (2006) |
82 | EE | Refael Hassin, Shlomi Rubinstein: An approximation algorithm for maximum triangle packing. Discrete Applied Mathematics 154(6): 971-979 (2006) |
81 | EE | Refael Hassin, Shlomi Rubinstein: An improved approximation algorithm for the metric maximum clustering problem with given cluster sizes. Inf. Process. Lett. 98(3): 92-95 (2006) |
80 | EE | Esther M. Arkin, Refael Hassin, Asaf Levin: Approximations for minimum and min-max vehicle routing problems. J. Algorithms 59(1): 1-18 (2006) |
79 | EE | Refael Hassin, Moshe Haviv: Who should be given priority in a queue? Oper. Res. Lett. 34(2): 191-198 (2006) |
2005 | ||
78 | EE | Refael Hassin, Einat Or: Min Sum Clustering with Penalties. ESA 2005: 167-178 |
77 | EE | Refael Hassin, Asaf Levin: An Approximation Algorithm for the Minimum Latency Set Cover Problem. ESA 2005: 726-733 |
76 | EE | Refael Hassin, Danny Segev: The Set Cover with Pairs Problem. FSTTCS 2005: 164-176 |
75 | EE | Refael Hassin, Danny Segev: The Multi-radius Cover Problem. WADS 2005: 24-35 |
74 | EE | Refael Hassin, Danny Segev: Rounding to an Integral Program. WEA 2005: 44-54 |
73 | EE | Refael Hassin, Mati Shani: Machine scheduling with earliness, tardiness and non-execution penalties. Computers & OR 32: 683-705 (2005) |
72 | EE | Cristina Bazgan, Refael Hassin, Jérôme Monnot: Approximation algorithms for some vehicle routing problems. Discrete Applied Mathematics 146(1): 27-42 (2005) |
71 | EE | Refael Hassin, Shlomi Rubinstein: On the complexity of the k-customer vehicle routing problem. Oper. Res. Lett. 33(1): 71-76 (2005) |
70 | EE | Refael Hassin, Jérôme Monnot: The maximum saving partition problem. Oper. Res. Lett. 33(3): 242-248 (2005) |
69 | EE | Ari Veltman, Refael Hassin: Equilibrium in Queueing Systems with Complementary Products. Queueing Syst. 50(2-3): 325-342 (2005) |
68 | EE | Refael Hassin, Asaf Levin: A Better-Than-Greedy Approximation Algorithm for the Minimum Set Cover Problem. SIAM J. Comput. 35(1): 189-200 (2005) |
2004 | ||
67 | EE | Refael Hassin, Asaf Levin: Approximation Algorithms for Quickest Spanning Tree Problems. ESA 2004: 395-402 |
66 | EE | Refael Hassin, Shlomi Rubinstein: An Approximation Algorithm for Maximum Triangle Packing. ESA 2004: 403-413 |
65 | EE | Refael Hassin, Danny Segev: Robust Subgraphs for Trees and Paths. SWAT 2004: 51-63 |
64 | EE | Esther M. Arkin, Refael Hassin, Shlomi Rubinstein, Maxim Sviridenko: Approximations for Maximum Transportation with Permutable Supply Vector and Other Capacitated Star Packing Problems. Algorithmica 39(2): 175-187 (2004) |
63 | EE | Refael Hassin, Asaf Levin: Approximation Algorithms for Quickest Spanning Tree Problems. Algorithmica 41(1): 43-52 (2004) |
62 | EE | Refael Hassin, Asaf Levin: Minimum restricted diameter spanning trees. Discrete Applied Mathematics 137(3): 343-357 (2004) |
61 | EE | Refael Hassin, Asaf Levin: Synthesis of 2-Commodity Flow Networks. Math. Oper. Res. 29(2): 280-288 (2004) |
60 | EE | Refael Hassin, Asaf Levin: An efficient polynomial time approximation scheme for the constrained minimum spanning tree problem using matroid intersection. SIAM J. Comput. 33(2): 261-268 (2004) |
2003 | ||
59 | EE | Cristina Bazgan, Refael Hassin, Jérôme Monnot: Differential Approximation for Some Routing Problems. CIAC 2003: 277-288 |
58 | EE | Refael Hassin, Asaf Levin: The Minimum Generalized Vertex Cover Problem. ESA 2003: 289-300 |
57 | EE | Refael Hassin, R. Ravi, F. Sibel Salman: Approximation Algorithms for a Capacitated Network Design Problem. Algorithmica 38(3): 417-431 (2003) |
56 | Refael Hassin, Asaf Levin: Subgraphs decomposable into two trees and k-edge-connected subgraphs. Discrete Applied Mathematics 126(2-3): 181-195 (2003) | |
55 | EE | Refael Hassin, Asaf Levin, Dana Morad: Lexicographic local search and the p. European Journal of Operational Research 151(2): 265-279 (2003) |
54 | EE | Refael Hassin, Asaf Levin: Minimum spanning tree with hop restrictions. J. Algorithms 48(1): 220-238 (2003) |
53 | EE | Sudipto Guha, Refael Hassin, Samir Khuller, Einat Or: Capacitated vertex covering. J. Algorithms 48(1): 257-270 (2003) |
52 | EE | Refael Hassin, Shlomi Rubinstein: Approximation algorithms for the metric maximum clustering problem with given cluster sizes. Oper. Res. Lett. 31(3): 179-184 (2003) |
51 | EE | Michele Conforti, Refael Hassin, R. Ravi: Reconstructing edge-disjoint paths. Oper. Res. Lett. 31(3): 273-276 (2003) |
2002 | ||
50 | EE | Refael Hassin, Asaf Levin: Minimum Restricted Diameter Spanning Trees. APPROX 2002: 175-184 |
49 | EE | Sudipto Guha, Refael Hassin, Samir Khuller, Einat Or: Capacitated vertex covering with applications. SODA 2002: 858-865 |
48 | EE | Esther M. Arkin, Refael Hassin, Shlomi Rubinstein, Maxim Sviridenko: Approximations for Maximum Transportation Problem with Permutable Supply Vector and Other Capacitated Star Packing Problems. SWAT 2002: 280-287 |
47 | EE | Refael Hassin, Moshe Haviv: Nash Equilibrium and Subgame Perfection in Observable Queues. Annals OR 113(1-4): 15-26 (2002) |
46 | Esther M. Arkin, Refael Hassin: A note on orientations of mixed graphs. Discrete Applied Mathematics 116(3): 271-278 (2002) | |
45 | Yuichi Asahiro, Refael Hassin, Kazuo Iwama: Complexity of finding dense subgraphs. Discrete Applied Mathematics 121(1-3): 15-26 (2002) | |
44 | Esther M. Arkin, Refael Hassin, Shimon Shahar: Increasing digraph arc-connectivity by arc addition, reversal and complement. Discrete Applied Mathematics 122(1-3): 13-22 (2002) | |
43 | EE | Refael Hassin, Shlomi Rubinstein: A 7/8-approximation algorithm for metric Max TSP. Inf. Process. Lett. 81(5): 247-251 (2002) |
42 | EE | Refael Hassin, Asaf Levin: Approximation algorithms for constructing wavelength routing networks. Networks 40(1): 32-37 (2002) |
41 | EE | Refael Hassin, Shlomi Rubinstein: Robust Matchings. SIAM J. Discrete Math. 15(4): 530-537 (2002) |
2001 | ||
40 | EE | Refael Hassin, Asaf Levin: Synthesis of 2-Commodity Flow Networks. IPCO 2001: 226-235 |
39 | EE | Refael Hassin, Shlomi Rubinstein: A 7/8-Approximation Algorithm for Metric Max TSP. WADS 2001: 205-209 |
38 | EE | Esther M. Arkin, Refael Hassin, Maxim Sviridenko: Approximating the maximum quadratic assignment problem. Inf. Process. Lett. 77(1): 13-16 (2001) |
37 | EE | Refael Hassin, Shlomi Rubinstein: Approximation algorithms for maximum linear arrangement. Inf. Process. Lett. 80(4): 171-177 (2001) |
36 | EE | Refael Hassin, Samir Khuller: z-Approximations. J. Algorithms 41(2): 429-442 (2001) |
35 | EE | Alexander A. Ageev, Refael Hassin, Maxim Sviridenko: A 0.5-Approximation Algorithm for MAX DICUT with Given Sizes of Parts. SIAM J. Discrete Math. 14(2): 246-255 (2001) |
2000 | ||
34 | EE | Refael Hassin, R. Ravi, F. Sibel Salman: Approximation algorithms for a capacitated network design problem. APPROX 2000: 167-176 |
33 | EE | Alexander A. Ageev, Refael Hassin, Maxim Sviridenko: An approximation algorithm for MAX DICUT with given sizes of parts. APPROX 2000: 34-41 |
32 | EE | Esther M. Arkin, Refael Hassin: Approximating the maximum quadratic assignment problem. SODA 2000: 889-890 |
31 | EE | Refael Hassin, Shlomi Rubinstein: Approximation Algorithms for Maximum Linear Arrangement. SWAT 2000: 231-236 |
30 | EE | Refael Hassin, Shlomi Rubinstein: Robust Matchings and Maximum Clustering. SWAT 2000: 251-258 |
29 | EE | Nili Guttmann-Beck, Refael Hassin: Approximation Algorithms for Minimum K-Cut. Algorithmica 27(2): 198-207 (2000) |
28 | EE | Nili Guttmann-Beck, Refael Hassin, Samir Khuller, Balaji Raghavachari: Approximation Algorithms with Bounded Performance Guarantees for the Clustered Traveling Salesman Problem. Algorithmica 28(4): 422-437 (2000) |
27 | EE | Refael Hassin, Shlomi Rubinstein: Better approximations for max TSP. Inf. Process. Lett. 75(4): 181-186 (2000) |
26 | EE | Esther M. Arkin, Refael Hassin: Minimum-diameter covering problems. Networks 36(3): 147-155 (2000) |
1998 | ||
25 | Nili Guttmann-Beck, Refael Hassin, Samir Khuller, Balaji Raghavachari: Approximation Algorithms with Bounded Performance Guarantees for the Clustered Traveling Salesman Problem. FSTTCS 1998: 6-17 | |
24 | EE | Shoshana Anily, Celia A. Glass, Refael Hassin: The Scheduling of Maintenance Service. Discrete Applied Mathematics 82(1-3): 27-42 (1998) |
23 | EE | Nili Guttmann-Beck, Refael Hassin: Approximation Algorithms for Minimum Tree Partition. Discrete Applied Mathematics 87(1-3): 117-137 (1998) |
22 | EE | Nili Guttmann-Beck, Refael Hassin: Approximation Algorithms for Min-sum p-clustering. Discrete Applied Mathematics 89(1-3): 125-142 (1998) |
21 | EE | Esther M. Arkin, Refael Hassin: Graph partitions with minimum degree constraints. Discrete Mathematics 190(1-3): 55-65 (1998) |
20 | EE | Refael Hassin, Shlomi Rubinstein: An Approximation Algorithm for the Maximum Traveling Salesman Problem. Inf. Process. Lett. 67(3): 125-130 (1998) |
1997 | ||
19 | Esther M. Arkin, Refael Hassin: On Local Search for Weighted k-Set Packing. ESA 1997: 13-22 | |
18 | EE | Refael Hassin, Shlomi Rubinstein: An Approximation Algorithm for Maximum Packing of 3-Edge Paths. Inf. Process. Lett. 63(2): 63-67 (1997) |
17 | Nili Guttmann-Beck, Refael Hassin: Approximation Algorithms for Min-Max Tree Partition. J. Algorithms 24(2): 266-286 (1997) | |
16 | EE | Esther M. Arkin, Refael Hassin, Limor Klein: Restricted delivery problems on a network. Networks 29(4): 205-216 (1997) |
15 | EE | Refael Hassin, Shlomi Rubinstein, Arie Tamir: Approximation algorithms for maximum dispersion. Oper. Res. Lett. 21(3): 133-137 (1997) |
1995 | ||
14 | EE | Michal Benelli, Refael Hassin: optimal Separable Partitioning in the Plane. Discrete Applied Mathematics 59(3): 215-224 (1995) |
13 | EE | Refael Hassin, Arie Tamir: On the Minimum Diameter Spanning Tree Problem. Inf. Process. Lett. 53(2): 109-111 (1995) |
1994 | ||
12 | EE | Esther M. Arkin, Refael Hassin: Approximation Algorithms for the Geometric Covering Salesman Problem. Discrete Applied Mathematics 55(3): 197-218 (1994) |
11 | Refael Hassin, Shlomi Rubinstein: Approximations for the Maximum Acyclic Subgraph Problem. Inf. Process. Lett. 51(3): 133-140 (1994) | |
10 | Refael Hassin, Shlomo Lahav: Maximizing the Number of Unused Colors in the Vertex Coloring Problem. Inf. Process. Lett. 52(2): 87-90 (1994) | |
1993 | ||
9 | EE | Refael Hassin, Mordechai I. Henig: Monotonicity and Efficient Computation of Optimal Dichotomous Search. Discrete Applied Mathematics 46(3): 221-234 (1993) |
8 | Esther M. Arkin, Magnús M. Halldórsson, Refael Hassin: Approximating the Tree and Tour Covers of a Graph. Inf. Process. Lett. 47(6): 275-282 (1993) | |
1992 | ||
7 | Refael Hassin, Moshe Haviv: Mean Passage Times and Nearly Uncoupled Markov Chains. SIAM J. Discrete Math. 5(3): 386-397 (1992) | |
1991 | ||
6 | EE | Refael Hassin, Nimrod Megiddo: Approximation algorithms for hitting objects with straight lines. Discrete Applied Mathematics 30(1): 29-42 (1991) |
1990 | ||
5 | Refael Hassin: Simultaneous Solution of Families of Problems. SIGAL International Symposium on Algorithms 1990: 288-299 | |
1989 | ||
4 | Shoshana Anily, Refael Hassin: Ranking the Best Binary Trees. SIAM J. Comput. 18(5): 882-892 (1989) | |
1985 | ||
3 | Refael Hassin, Nimrod Megiddo: An Optimal Algorithm for Finding all the Jumps of a Monotone Step-Function. J. Algorithms 6(2): 265-274 (1985) | |
2 | Refael Hassin, Donald B. Johnson: An O(n log² n) Algorithm for Maximum Flow in Undirected Planar Networks. SIAM J. Comput. 14(3): 612-624 (1985) | |
1981 | ||
1 | Refael Hassin: Maximum Flow in (s, t) Planar Networks. Inf. Process. Lett. 13(3): 107 (1981) |