151 search results - page 30 / 31 » On the Containment Problem for Queries in Conjunctive Form w... |
ICDE
2007
IEEE
14 years 1 months ago
2007
IEEE
Trust management is a form of access control that uses delegation to achieve scalability beyond a single organization or federation. However, delegation can be difficult to contr...
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
We address the problem of updating XML views over relational data by translating view updates expressed in the XQuery update facility to embedded SQL updates. Although our XML view...
SIGIR
2009
ACM
14 years 2 months ago
2009
ACM
The selection of indexing terms for representing documents is a key decision that limits how effective subsequent retrieval can be. Often stemming algorithms are used to normaliz...
FOCS
2008
IEEE
14 years 1 months ago
2008
IEEE
Learning problems form an important category of computational tasks that generalizes many of the computations researchers apply to large real-life data sets. We ask: what concept ...
COMAD
2008
13 years 9 months ago
2008
Web is the most important repository of different kinds of media such as text, sound, video, images etc. Web mining is the process of applying data mining techniques to automatica...