2853 search results - page 233 / 571 » On the Efficiency of Provenance Queries |
192
click to vote
CORR
2011
Springer
14 years 10 months ago
2011
Springer
We study probabilistic bit-probe schemes for the membership problem. Given a set A of at most n elements from the universe of size m we organize such a structure that queries of t...
274
click to vote
SIGMOD
2008
ACM
16 years 6 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...
271
click to vote
SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
An emerging challenge in modern distributed querying is to efficiently process multiple continuous aggregation queries simultaneously. Processing each query independently may be i...
243
click to vote
SIGMOD
2007
ACM
16 years 6 months ago
2007
ACM
Suppose a long-running analytical query is executing on a database server and has been allocated a large amount of physical memory. A high-priority task comes in and we need to ru...
165
click to vote
VLDB
1994
ACM
15 years 10 months ago
1994
ACM
A new type of optimization, called predicate move-around, ia introduced. It is shown how this optimization `considerably improvea the efficiency of evaluating SQL queries that hav...