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SIGIR
2004
ACM
14 years 3 months ago
2004
ACM
Noun phrases in queries are identified and classified into four types: proper names, dictionary phrases, simple phrases and complex phrases. A document has a phrase if all content...
SIGIR
2004
ACM
14 years 3 months ago
2004
ACM
Indexing and ranking are two key factors for efficient and effective XML information retrieval. Inappropriate indexing may result in false negatives and false positives, and impro...
CIKM
2004
Springer
14 years 3 months 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,...
ISAAC
2004
Springer
14 years 3 months ago
2004
Springer
For c ∈ R, a c-spanner is a subgraph of a complete Euclidean graph satisfying that between any two vertices there exists a path of weighted length at most c times their geometric...
BIBE
2003
IEEE
14 years 3 months ago
2003
IEEE
The tertiary (3D) structure of a protein contains the essential information for understanding the biological function of the protein at the molecular and cellular levels. Traditio...