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CIKM
2005
Springer
14 years 14 days ago
2005
Springer
Testing reachability between nodes in a graph is a well-known problem with many important applications, including knowledge representation, program analysis, and more recently, bi...
CIKM
2004
Springer
14 years 9 days ago
2004
Springer
It is crucial in many information systems to organize short text segments, such as keywords in documents and queries from users, into a well-formed topic hierarchy. In this paper,...