7690 search results - page 196 / 1538 » On the semantics of informational independence |
152
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PODS
2006
ACM
16 years 6 months ago
2006
ACM
The query equivalence problem has been studied extensively for set-semantics and, more recently, for bag-set semantics. However, SQL queries often combine set and bag-set semantic...
170
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ERSHOV
2006
Springer
15 years 10 months ago
2006
Springer
The paper presents a concept and architecture of specialized Internet portal providing semantic access to knowledge and information resources (electronic collections) for any given...
197
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WIDM
2003
ACM
15 years 11 months ago
2003
ACM
At the present time, several shortcomings prevent the more effective use and more intense application of web information systems. Recent developments that are subsumed by the term...
172
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MM
2003
ACM
15 years 11 months ago
2003
ACM
We present a method being developed to extract information about characters’ emotions in films. It is suggested that this information can help describe higher levels of multimed...
154
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CSFW
2005
IEEE
16 years 3 days ago
2005
IEEE
Real computing systems sometimes need to forget sensitive information. This paper explores the specification and semantics of information erasure policies, which impose a strong,...