3891 search results - page 36 / 779 » Query Models |
ISCI
2007
13 years 9 months ago
2007
In an object-relational database management system, a query optimizer requires users to provide cost models of userdefined functions. The traditional approach is analytical, that...
IADIS
2004
13 years 11 months ago
2004
MIDAS is a model-driven methodology for Web Information Systems development based on the OMG's Model Driven Architecture. It proposes to use UML to describe different views o...
TSC
2010
13 years 4 months ago
2010
Data-Providing (DP) services allow query-like access to organizations' data via web services. The invocation of a DP service results in the execution of a query over data sour...
SIGIR
2008
ACM
13 years 9 months ago
2008
ACM
This paper addresses the issue of query refinement, which involves reformulating ill-formed search queries in order to enhance relevance of search results. Query refinement typica...
JVA
2006
IEEE
14 years 3 months ago
2006
IEEE
In this paper, we will introduce to describe learning resources by using ontology model based on metadata of learning standard as Sharable Content Object Reference Model (SCORM) a...