617 search results - page 60 / 124 » Semantic queries in databases: problems and challenges |
RECOMB
2007
Springer
14 years 9 months ago
2007
Springer
Molecular interaction databases can be used to study the evolution of molecular pathways across species. Querying such pathways is a challenging computational problem, and recent e...
VLDB
2007
ACM
14 years 9 months ago
2007
ACM
Evaluation of twig queries over probabilistic XML is investigated. Projection is allowed and, in particular, a query may be Boolean. It is shown that for a well-known model of pro...
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
As increasing amount of data is published in the form of XML, copyright protection of XML data is becoming an important requirement for many applications. While digital watermarki...
VLDB
1997
ACM
14 years 1 months ago
1997
ACM
Many sources on the Internet and elsewhere rank the objects in query results according to how well these objects match the original query. For example, a real-estate agent might r...
DBISP2P
2006
Springer
14 years 17 days ago
2006
Springer
The processing of k-NN queries has been studied extensively both in a centralized computing environment and in a structured P2P environment. However, the problem over an unstructur...