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IPL
2008
114views more  IPL 2008»
15 years 1 months ago
The online Prize-Collecting Traveling Salesman Problem
We study the online version of the Prize-Collecting Traveling Salesman Problem (PCTSP), a generalization of the Traveling Salesman Problem (TSP). In the TSP, the salesman has to v...
Giorgio Ausiello, Vincenzo Bonifaci, Luigi Laura
CONIELECOMP
2005
IEEE
15 years 7 months ago
Approximate Searching on Compressed Text
The approximate searching problem on compressed text tries to find all the matches of a pattern in a compressed text, without decompressing it and considering that the match of th...
Carlos Avendaño Pérez, Claudia Fereg...
SODA
2010
ACM
202views Algorithms» more  SODA 2010»
15 years 11 months ago
Counting Inversions, Offline Orthogonal Range Counting, and Related Problems
We give an O(n lg n)-time algorithm for counting the number of inversions in a permutation on n elements. This improves a long-standing previous bound of O(n lg n/ lg lg n) that ...
Timothy M. Chan, Mihai Patrascu
ISAAC
2001
Springer
112views Algorithms» more  ISAAC 2001»
15 years 6 months ago
On the Complexity of Train Assignment Problems
We consider a problem faced by train companies: How can trains be assigned to satisfy scheduled routes in a cost efficient way? Currently, many railway companies create solutions b...
Thomas Erlebach, Martin Gantenbein, Daniel Hü...
ESA
2007
Springer
122views Algorithms» more  ESA 2007»
15 years 5 months ago
A Practical Efficient Fptas for the 0-1 Multi-objective Knapsack Problem
Abstract. In the present work, we are interested in the practical behavior of a new fptas to solve the approximation version of the 0-1 multiobjective knapsack problem. Nevertheles...
Cristina Bazgan, Hadrien Hugot, Daniel Vanderpoote...