31 search results - page 3 / 7 » Optimization of Systems of Algebraic Equations for Evaluatin... |
BTW
2007
Springer
13 years 11 months ago
2007
Springer
: Over the recent years, very little effort has been made to give XPath a proper algebraic treatment. The only laudable exception is the Natix Algebra (NAL) which defines the tran...
SIGMOD
2007
ACM
14 years 5 months ago
2007
ACM
Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...
VLDB
1992
ACM
13 years 9 months ago
1992
ACM
Research in temporal databases has mainly focused on defining temporal data models by extending existing models, and developing access structures for temporal data. Little has bee...
DKE
2010
13 years 5 months ago
2010
We describe the Consistency Extractor System (ConsEx) that computes consistent answers to Datalog queries with negation posed to relational databases that may be inconsistent with...
DEBU
2008
13 years 5 months ago
2008
In this paper, we describe the TIMBER XML database system implemented at University of Michigan. TIMBER was one of the first native XML database systems, designed from the ground ...