9683 search results - page 622 / 1937 » Predicting query performance |
157
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EACL
1989
ACL Anthology
15 years 8 months ago
1989
ACL Anthology
The structure of problem-solving discourse in the expert advising setting can be modeled by adding a layer of metaplans to a plan-based model of the task domain. Classes of metapl...
200
Voted
IPPS
2008
IEEE
16 years 1 months ago
2008
IEEE
—Hybrid P2P systems rely on the assumption that sufficient objects exist nearby in order to make the unstructured search component efficient. This availability depends on the o...
181
Voted
BTW
2005
Springer
16 years 25 days ago
2005
Springer
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
209
Voted
VLDB
2004
ACM
16 years 19 days ago
2004
ACM
The use of inaccurate or outdated database statistics by the query optimizer in a relational DBMS often results in a poor choice of query execution plans and hence unacceptably lo...
216
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ITCC
2003
IEEE
16 years 17 days ago
2003
IEEE
We present an efficient algorithm called the Quadtree Heuristic for identifying a list of similar terms for each unique term in a large document collection. Term similarity is de...