1179 search results - page 2 / 236 » Query Containment for Data Integration Systems |
IDEAS
2007
IEEE
13 years 11 months ago
2007
IEEE
In this paper we study the problem of deciding whether a regular path query over views in data-integration systems can be re-expressed without recursion. The problem becomes chall...
SEMWEB
2005
Springer
13 years 10 months ago
2005
Springer
Semantic query optimization (SQO) has been proved to be quite useful in various applications (e.g., data integration, graphical query generators, caching, etc.) and has been extens...
FOIKS
2004
Springer
13 years 10 months ago
2004
Springer
Abstract. We give a general framework for approximate query processing in semistructured databases. We focus on regular path queries, which are the integral part of most of the que...
SIGMOD
2001
ACM
14 years 5 months ago
2001
ACM
Virtually all proposals for querying XML include a class of query we term "containment queries". It is also clear that in the foreseeable future, a substantial amount of...
CADE
2012
Springer
11 years 7 months ago
2012
Springer
The problem of SPARQL query containment is defined as determining if the result of one query is included in the result of another for any RDF graph. Query containment is important...