199 search results - page 32 / 40 » Join queries on uncertain data: Semantics and efficient proc... |
143
click to vote
SIGMOD
2008
ACM
15 years 9 months ago
2008
ACM
There has been a significant amount of excitement and recent work on column-oriented database systems ("column-stores"). These database systems have been shown to perfor...
178
click to vote
SIGMOD
2007
ACM
15 years 9 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...
154
click to vote
SIGMOD
2007
ACM
15 years 9 months ago
2007
ACM
To compensate for the inherent impedance mismatch between the relational data model (tables of tuples) and XML (ordered, unranked trees), tree join algorithms have become the prev...
ADBIS
2009
Springer
15 years 4 months ago
2009
Springer
Continuous queries applied over nonterminating data streams usually specify windows in order to obtain an evolving –yet restricted– set of tuples and thus provide timely result...
165
click to vote
SIGMOD
2008
ACM
15 years 9 months ago
2008
ACM
We study the problem of querying relational data embedded in XML. Relational data can be represented by various tree structures in XML. However, current XML query methods, such as...