66 search results - page 5 / 14 » Optimizing Nested Queries with Parameter Sort Orders |
ICDM
2007
IEEE
14 years 1 months ago
2007
IEEE
Data mining algorithms use various Trie and bitmap-based representations to optimize the support (i.e., frequency) counting performance. In this paper, we compare the memory requi...
PEPM
2010
ACM
14 years 4 months ago
2010
ACM
We show how to efficiently evaluate generic map-filter-product queries, generalizations of select-project-join (SPJ) queries in relational algebra, based on a combination of two...
JCP
2008
13 years 7 months ago
2008
In sensor networks, continuous query is commonly used for collecting periodical data from the objects under monitoring. This sort of queries needs to be carefully designed, in orde...
CORR
2010
Springer
13 years 2 months ago
2010
Springer
In this paper we describe a new efficient (in fact optimal) data structure for the top-K color problem. Each element of an array A is assigned a color c with priority p(c). For a ...
SIGMOD
2000
ACM
13 years 11 months ago
2000
ACM
Testing an SQL database system by running large sets of deterministic or stochastic SQL statements is common practice in commercial database development. However, code defects oft...