907 search results - page 121 / 182 » Efficient Optimization of Iterative Queries |
SIGMOD
2002
ACM
14 years 9 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
VLDB
2007
ACM
14 years 3 months ago
2007
ACM
This paper describes Continuous Queries (CQ) in Oracle RDBMS, a feature that incorporates stream and complex event processing into an RDBMS, the first such attempt in commercial d...
CORR
2008
Springer
13 years 9 months ago
2008
Springer
We propose to design data structures called succinct geometric indexes of negligible space (more precisely, o(n) bits) that support geometric queries in optimal time, by taking adv...
WWW
2008
ACM
13 years 9 months ago
2008
ACM
We propose a novel Partition Path-Based (PPB) grouping strategy to store compressed XML data in a stream of blocks. In addition, we employ a minimal indexing scheme called Block S...
MOBIHOC
2006
ACM
14 years 8 months ago
2006
ACM
We use a constrained optimization framework to derive fundamental scaling laws for both unstructured sensor networks (which use blind sequential search for querying) and structure...