2043 search results - page 152 / 409 » The Limits of Querying Ontologies |
VLDB
2004
ACM
14 years 2 months ago
2004
ACM
We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments ...
OTM
2007
Springer
14 years 3 months ago
2007
Springer
Abstract. We discuss our DLDB knowledge base system and evaluate its capability in processing a very large set of real-world Semantic Web data. Using DLDB, we have constructed the ...
ICDE
2007
IEEE
14 years 26 days ago
2007
IEEE
Context-based literature digital library search is a new search paradigm that creates an effective ranking of query outputs by controlling query output topic diversity. We define ...
ICWS
2007
IEEE
13 years 10 months ago
2007
IEEE
There is a critical need to design and develop tools tract away the fundamental complexity of XML based Web services specifications and toolkits, and provide an elegant, intuitive...
WWW
2007
ACM
14 years 9 months ago
2007
ACM
Current keyword-oriented search engines for the World Wide Web do not allow specifying the semantics of queries. We address this limitation with NAGA1 , a new semantic search engi...