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IDEAS
2007
IEEE
14 years 4 months ago
2007
IEEE
Historically, bitmap indexing has provided an important database capability to accelerate queries. However, only a few database systems have implemented these indexes because of t...
WWW
2004
ACM
14 years 11 months ago
2004
ACM
Maximizing only the relevance between queries and documents will not satisfy users if they want the top search results to present a wide coverage of topics by a few representative...
ADBIS
2010
Springer
13 years 11 months ago
2010
Springer
Abstract. The need for location-based services has motivated an important research effort in the efficient processing of location-dependent queries. Most of the existing approaches...
CIKM
2008
Springer
14 years 8 days ago
2008
Springer
The Web contains a large amount of documents and increasingly, also semantic data in the form of RDF triples. Many of these triples are annotations that are associated with docume...
GIS
2002
ACM
13 years 10 months ago
2002
ACM
Enterprises in the public and private sectors have been making their large spatial data archives available over the Internet. However, interactive work with such large volumes of ...