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SAC
2005
ACM
15 years 3 months ago
2005
ACM
We consider the problem of information retrieval in a peerto-peer file sharing system. We assume that peers are unreliable, metadata are sparse, and queries are short. In light o...
GEOS
2009
Springer
15 years 2 months ago
2009
Springer
Abstract. Often the information present in a spatial knowledge base is represented at a different level of granularity and abstraction than the query constraints. For querying onto...
SRDS
1998
IEEE
15 years 2 months ago
1998
IEEE
In the paper, an e cient image database system is developed. The most important features of the proposed system include compressed domain indexing, searching by using scalable fea...
CIKM
2008
Springer
14 years 12 months ago
2008
Springer
As the number of non-English documents is increasing dramatically on the web nowadays, the study and design of information retrieval systems for these languages is very important....
BTW
2005
Springer
15 years 3 months 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...