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RIAO
2000
15 years 7 months ago
MproIR - A cross-language Information retrieval
With the globalization of the world markets, the need for multilingual information processing increases, because the users are increasingly forced to deal with information availab...
Bärbel Ripplinger
MFCS
2009
Springer
15 years 11 months ago
An Improved Approximation Bound for Spanning Star Forest and Color Saving
We present a simple algorithm for the maximum spanning star forest problem. We take advantage of the fact that the problem is a special case of complementary set cover and we adapt...
Stavros Athanassopoulos, Ioannis Caragiannis, Chri...
DLT
2006
15 years 7 months ago
Finding Lower Bounds for Nondeterministic State Complexity Is Hard
We investigate the following lower bound methods for regular languages: The fooling set technique, the extended fooling set technique, and the biclique edge cover technique. It is ...
Hermann Gruber, Markus Holzer
TALG
2008
93views more  TALG 2008»
15 years 6 months ago
Limitations of cross-monotonic cost-sharing schemes
A cost-sharing scheme is a set of rules defining how to share the cost of a service (often computed by solving a combinatorial optimization problem) amongst serviced customers. A ...
Nicole Immorlica, Mohammad Mahdian, Vahab S. Mirro...
ICALP
2007
Springer
16 years 19 days ago
Linear Problem Kernels for NP-Hard Problems on Planar Graphs
Abstract. We develop a generic framework for deriving linear-size problem kernels for NP-hard problems on planar graphs. We demonstrate the usefulness of our framework in several c...
Jiong Guo, Rolf Niedermeier