22018 search results - page 4025 / 4404 » or 2004 |
167
click to vote
SIGMOD
2004
ACM
16 years 7 months ago
2004
ACM
Ranking is an important property that needs to be fully supported by current relational query engines. Recently, several rank-join query operators have been proposed based on rank...
180
click to vote
SIGMOD
2004
ACM
16 years 7 months ago
2004
ACM
Database selection is an important step when searching over large numbers of distributed text databases. The database selection task relies on statistical summaries of the databas...
230
click to vote
SIGMOD
2004
ACM
16 years 7 months ago
2004
ACM
Virtually every commercial query optimizer chooses the best plan for a query using a cost model that relies heavily on accurate cardinality estimation. Cardinality estimation erro...
198
click to vote
SIGMOD
2004
ACM
16 years 7 months ago
2004
ACM
This paper introduces the Scalable INcremental hash-based Algorithm (SINA, for short); a new algorithm for evaluating a set of concurrent continuous spatio-temporal queries. SINA ...
213
click to vote
SIGMOD
2004
ACM
16 years 7 months ago
2004
ACM
Mining informative patterns from very large, dynamically changing databases poses numerous interesting challenges. Data summarizations (e.g., data bubbles) have been proposed to c...