716 search results - page 69 / 144 » Optimizing Queries in Extended Relational Databases |
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ICDE
2006
IEEE
16 years 20 days ago
2006
IEEE
The ongoing revolution in life sciences research is producing vast amounts of genetic and proteomic sequence data. Scientists want to pose increasingly complex queries on this dat...
VLDB
1999
ACM
15 years 3 months ago
1999
ACM
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...
CORR
2007
Springer
14 years 11 months ago
2007
Springer
We address the problem of answering Web ontology queries efficiently. An ontology is formalized as a Deductive Ontology Base (DOB), a deductive database that comprises the ontology...
IJSWIS
2008
14 years 11 months ago
2008
Relational technology has shown to be very useful for scalable Semantic Web data management. Numerous researchers have proposed to use RDBMSs to store and query voluminous RDF dat...
AAAI
2008
15 years 1 months ago
2008
Changing preferences is very common in real life. The expressive power of the operations of preference change introduced so far in the literature is limited to adding new informat...