777 search results - page 152 / 156 » Optimization of Relational Preference Queries |
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
Given a set of model graphs D and a query graph q, containment search aims to find all model graphs g D such that q contains g (q g). Due to the wide adoption of graph models, f...
VLDB
1992
ACM
13 years 11 months ago
1992
ACM
This paper evaluates the performance of the parallel, main-memory DBMS, PRISMA/DB. First, an architecture for parallel query execution is presented. A performance model for the ex...
ISCI
2007
13 years 7 months ago
2007
Selectivity estimation is an important step of query optimization in a database management system, and multidimensional histogram techniques have proved promising for selectivity ...
ICDAR
2011
IEEE
12 years 7 months ago
2011
IEEE
—We propose a novel scenario called “writer retrieval” consisting in the retrieval from a set of documents all those produced by the same writer. The retrieval is based on a ...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
Entity matching (a.k.a. record linkage) plays a crucial role in integrating multiple data sources, and numerous matching solutions have been developed. However, the solutions have...