Publications: [Papers] [Thesis]
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Max-Weight Integral Multicommodity Flow in Spiders and High-Capacity Trees
[pdf],
with J. Könemann and
D. Pritchard.
To appear in the proceedings of the Workshop on Approximation and Online Algorithms (WAOA), 2008.
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Approximation algorithms for partially covering with edges
[doi].
Theoretical Computer Science, 400(1-3), pp. 159-168, 2008.
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Compacting cuts: a new linear formulation for minimum cut
[pdf],
with R. Carr,
G. Konjevod,
G. Little,
and V. Natarajan.
Accepted for publication in a special issue of the ACM Transactions on Algorithms dedicated to selected
papers from SODA 2007.
A preliminary version appears in the proceedings of the Symposium on Discrete Algorithms (SODA), pp. 43-52, 2007.
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A Unified Approach to Approximating Partial Covering Problems
[pdf],
J. Könemann and
D. Segev.
Appears in the proceedings of the European Symposium on Algorithms (ESA), pp. 468-479, 2006.
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Path Hitting in Acyclic Graphs
[doi],
with D. Segev.
To appear in Algorithmica, 2008.
A preliminary version appears in the proceedings of the European Symposium on Algorithms (ESA), pp. 564-575, 2006.
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Capacitated b-Edge Dominating Set and Related Problems
[doi],
with A. Berger,
T. Fukunaga, and
H. Nagamochi.
Theoretical Computer Science. 385(1-3), pp. 202-213, 2007.
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Linear Time Algorithms for Generalized Edge Dominating Set Problems
[doi],
with A. Berger.
Algorithmica. 50(2), pp. 244-254, 2008.
Appears in a special issue dedicated to select papers invited from WADS 2005.
A preliminary version appears in the proceedings of the Workshop on Algorithms and Data Structures (WADS), pp. 233-243, 2005.
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Finding Effective Support-Tree Preconditioners
[pdf],
with B. Maggs,
G. Miller,
R. Ravi, and
S.L. Woo.
Appears in the proceedings of the Syposium of Parallel Architectures and Algorithms (SPAA), pp. 176-185, 2005.
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A 1/2-Integral Relaxation for the A-Matching Problem
[doi],
with R. Carr.
Operations Research Letters. 34(4), pp. 445-450, 2006.
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On Factor Width and Symmetric H-matrices
[doi],
with E. G. Boman,
D. Chen, and
S. Toledo.
Linear Algerbra and Its Applications. 405, pp. 239-248, 2005.
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Randomized Approximation Algorithms for Query Optimization on Two Processors
[pdf],
with E. Laber and
R. Ravi.
Appears in the proceedings of the European Symposium on Algorithms (ESA), pp. 649-661, 2002.
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Edge dominating and hypomatchable sets
[ps].
Appears in the proceedings of the Symposium on Discrete Algorithms (SODA), pp. 287-291, 2002.
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An approximation algorithm for edge-dilation k-center problem
[doi],
with J. Könemann,
Y. Li, and
A. Sinha.
Operations Research Letters. 32(5), pp. 491-495, 2004.
A preliminary version appears in the proceedings of the Scandinavian Workshop on Algorithmic Theory (SWAT), pp. 210-219, 2002.
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Forestation in Hypergraphs: Linear k-Trees [pdf].
The Electronic Journal of Combinatorics. 10(1), #N12, 2003.
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Improved Approximations for Tour and Tree Covers
[doi],
with J. Könemann,
G. Konjevod, and
A. Sinha.
Algorithmica. 38(3), pp. 441-449, 2003.
A preliminary in the proceedings of Approximation Algorithms for Combinatorial Optimization (APPROX), pp. 184-193, 2000.
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A 2 1/10-Approximation Algorithm for a Generalization of the Weighted Edge-Dominating Set Problem
[ps],
with R. Carr,
T. Fujito, and
G. Konjevod.
Journal of Combinatorial Optimization. 5(3), pp. 317-326, 2001.
A preliminary version appears in the proceedings of the European Symposium of Algorithms (ESA), pp. 317-326, 2000.
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A Survey and New Results in Renegotiated Service,
with E. Zegura and
S. McFarland.
Journal of High Speed Networks. 6(3), 1997.
My thesis:
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Polyhedral Techniques for Graphic Covering Problems
[ps.gz].
Submitted to the Algorithms, Combinatorics, and Optimization program at Carnegie Mellon University, 2002.