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» Competitive Online Approximation of the Optimal Search Ratio
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ICPR
2008
IEEE
16 years 12 days ago
An online polygonal approximation of digital signals and curves with Dynamic Programming algorithm
A fast online algorithm was developed for polygonal approximation of signals and curves with a minimum number of line segments for a given constraint on the standard deviation of ...
Alexander Kolesnikov
ACL
2010
15 years 4 months ago
Viterbi Training for PCFGs: Hardness Results and Competitiveness of Uniform Initialization
We consider the search for a maximum likelihood assignment of hidden derivations and grammar weights for a probabilistic context-free grammar, the problem approximately solved by ...
Shay B. Cohen, Noah A. Smith
ISAAC
1999
Springer
107views Algorithms» more  ISAAC 1999»
15 years 10 months ago
Carrying Umbrellas: An Online Relocation Problem on Graphs
We introduce an online relocation problem on a graph, in which a player who walks around the nodes makes decisions on whether to relocate mobile resources, while not knowing the fu...
Jae-Ha Lee, Chong-Dae Park, Kyung-Yong Chwa
COCOON
2006
Springer
15 years 9 months ago
On Dynamic Bin Packing: An Improved Lower Bound and Resource Augmentation Analysis
We study the dynamic bin packing problem introduced by Coffman, Garey and Johnson. This problem is a generalization of the bin packing problem in which items may arrive and depart...
Wun-Tat Chan, Prudence W. H. Wong, Fencol C. C. Yu...
JACM
2006
92views more  JACM 2006»
15 years 6 months ago
The generalized two-server problem
We consider the generalized on-line two-server problem in which at each step each server receives a request, which is a point in a metric space. One of the servers has to be moved ...
René A. Sitters, Leen Stougie