2853 search results - page 18 / 571 » On the Efficiency of Provenance Queries |
ICMCS
2006
IEEE
14 years 1 months ago
2006
IEEE
In this paper, we presented an image search service for mobile users. It can be used to acquire related information by taking and sending pictures to the server, for example, gett...
WWW
2009
ACM
14 years 8 months ago
2009
ACM
The majority of people in rural developing regions do not have access to the World Wide Web. Traditional network connectivity technologies have proven to be prohibitively expensiv...
ICDT
2009
ACM
14 years 8 months ago
2009
ACM
We study containment and equivalence of (unions of) conjunctive queries on relations annotated with elements of a commutative semiring. Such relations and the semantics of positiv...
KAIS
2008
13 years 7 months ago
2008
Abstract. Peer-to-Peer systems have proven to be an effective way of sharing data. Modern protocols are able to efficiently route a message to a given peer. However, determining th...
ICDE
2003
IEEE
14 years 8 months ago
2003
IEEE
Contemporary XPath query engines evaluate queries in time exponential in the sizes of input queries, a fact that has gone unnoticed for a long time. Recently, the first main