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APPROX
2010
Springer
193views Algorithms» more  APPROX 2010»
15 years 6 months ago
Approximation Algorithms for the Directed k-Tour and k-Stroll Problems
We consider two natural generalizations of the Asymmetric Traveling Salesman problem: the k-Stroll and the k-Tour problems. The input to the k-Stroll problem is a directed n-verte...
MohammadHossein Bateni, Julia Chuzhoy
CORR
2010
Springer
190views Education» more  CORR 2010»
15 years 4 months ago
Stable marriage problems with quantitative preferences
The stable marriage problem is a well-known problem of matching men to women so that no man and woman, who are not married to each other, both prefer each other. Such a problem ha...
Maria Silvia Pini, Francesca Rossi, Kristen Brent ...
SIAMCOMP
2008
167views more  SIAMCOMP 2008»
15 years 4 months ago
Approximation Algorithms for Data Placement Problems
We develop approximation algorithms for the problem of placing replicated data in arbitrary networks, where the nodes may both issue requests for data objects and have capacity fo...
Ivan D. Baev, Rajmohan Rajaraman, Chaitanya Swamy
ICALP
2009
Springer
16 years 4 months ago
Algorithms for Secretary Problems on Graphs and Hypergraphs
We examine several online matching problems, with applications to Internet advertising reservation systems. Consider an edge-weighted bipartite graph G, with partite sets L, R. We...
Martin Pál, Nitish Korula
CPM
2004
Springer
110views Combinatorics» more  CPM 2004»
15 years 10 months ago
On the k-Closest Substring and k-Consensus Pattern Problems
Given a set S = {s1, s2, . . . , sn} of strings each of length m, and an integer L, we study the following two problems. k-Closest Substring problem: find k center strings c1, c2,...
Yishan Jiao, Jingyi Xu, Ming Li