783 search results - page 55 / 157 » Improved approximation algorithms for the freeze-tag problem |
280
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ICDE
2003
IEEE
16 years 6 months ago
2003
IEEE
XML data integration tools are facing a variety of challenges for their efficient and effective operation. Among these is the requirement to handle a variety of inconsistencies or...
128
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ICML
2009
IEEE
16 years 6 months ago
2009
IEEE
Recent approaches to learning structured predictors often require approximate inference for tractability; yet its effects on the learned model are unclear. Meanwhile, most learnin...
162
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STACS
2005
Springer
15 years 10 months ago
2005
Springer
Exponential algorithms, i.e. algorithms of complexity O(cn ) for some c > 1, seem to be unavoidable in the case of NP-complete problems (unless P=NP), especially if the problem ...
142
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TNN
1998
15 years 4 months ago
1998
— In this work, a probabilistic model is established for recurrent networks. The EM (expectation-maximization) algorithm is then applied to derive a new fast training algorithm f...
161
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CORR
2007
Springer
15 years 5 months ago
2007
Springer
Orienteering is the following optimization problem: given an edge-weighted graph (directed or undirected), two nodes s, t and a time limit T, find an s-t walk of total length at ...