735 search results - page 109 / 147 » Query Optimization In Compressed Database Systems |
VLDB
1994
ACM
13 years 11 months ago
1994
ACM
Physical data independence is touted as a central feature of modern database systems. Both relational and object-oriented systems, however, force users to frame their queries in t...
CIVR
2007
Springer
14 years 1 months ago
2007
Springer
Content-based image retrieval with relevant feedback has been widely adopted as the query model of choice for improved effectiveness in image retrieval. The effectiveness of thi...
SIGMOD
2009
ACM
14 years 8 months ago
2009
ACM
With the proliferation of the RDF data format, engines for RDF query processing are faced with very large graphs that contain hundreds of millions of RDF triples. This paper addre...
SIGMOD
2005
ACM
14 years 7 months ago
2005
ACM
Clio, the IBM Research system for expressing declarative schema mappings, has progressed in the past few years from a research prototype into a technology that is behind some of I...
SIGMOD
2002
ACM
14 years 7 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...