196 search results - page 26 / 40 » Group-by skyline query processing in relational engines |
VLDB
2004
ACM
14 years 7 months ago
2004
ACM
Abstract This paper describes the design, implementation, and performance characteristics of a commercial XQuery processing engine, the BEA streaming XQuery processor. This XQuery ...
FOCS
1998
IEEE
13 years 12 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
CSMR
1999
IEEE
13 years 12 months ago
1999
IEEE
This paper describes a case study where SofTrack a Software Defect Report and Tracking System - was implemented using internet technology in a geographically distributed organizat...
VLDB
1998
ACM
13 years 12 months ago
1998
ACM
Currently the key problems of query optimization are extensibility imposed by object-relational technology, as well as query complexity caused by forthcoming applications, such as...
ACL
2006
13 years 9 months ago
2006
At present, adapting an Information Extraction system to new topics is an expensive and slow process, requiring some knowledge engineering for each new topic. We propose a new par...