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IJCAI
2007
13 years 9 months ago
2007
While traditional information extraction systems have been built to answer questions about facts, subjective information extraction systems will answer questions about feelings an...
SDM
2008
SIAM
13 years 9 months ago
2008
SIAM
Bayesian text classifiers face a common issue which is referred to as data sparsity problem, especially when the size of training data is very small. The frequently used Laplacian...
DAGSTUHL
2004
13 years 9 months ago
2004
We present the Priority R-tree, or PR-tree, which is the first R-tree variant that always answers a window query using O((N/B)1-1/d + T/B) I/Os, where N is the number of ddimensio...
DAGSTUHL
2003
13 years 9 months ago
2003
Homotopy continuation methods have proven to be reliable and efficient to approximate all isolated solutions of polynomial systems. In this paper we show how we can use this capabi...
SODA
2004
ACM
13 years 9 months ago
2004
ACM
Graph H is a root of graph G if there exists a positive integer k such that x and y are adjacent in G if and only if their distance in H is at most k. Motwani and Sudan [1994] prov...