617 search results - page 3 / 124 » Semantic queries in databases: problems and challenges |
147
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SAMT
2007
Springer
16 years 7 hour ago
2007
Springer
This paper describes our experience developing a semantically-rich exploratory interface that integrates a suite of Newsfilm media sources and associated information. Indeed, the a...
155
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DBISP2P
2006
Springer
15 years 9 months ago
2006
Springer
Sharing of structured data in P2P overlays is a challenging problem, especially in the absence of a global schema. The nature of structured data stored in the overlay enforces stri...
157
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PODS
2006
ACM
16 years 6 months ago
2006
ACM
Query containment is a fundamental algorithmic problem in database query processing and optimization. Under set semantics, the query-containment problem for conjunctive queries ha...
205
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PODS
2004
ACM
16 years 6 months ago
2004
ACM
The Semantic Web is based on the idea of adding more machine-readable semantics to web information via annotations written in a language called the Resource Description Framework ...
146
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MTA
2006
15 years 5 months ago
2006
Abstract. Query-by-example and query-by-keyword both suffer from the problem of "aliasing," meaning that example-images and keywords potentially have variable interpretat...