47 search results - page 1 / 10 » Expressing and Optimizing Similarity-Based Queries in SQL |
ER
2004
Springer
13 years 10 months ago
2004
Springer
Searching for similar objects (in terms of near and nearest neighbors) of a given query object from a large set is an essential task in many applications. Recent years have seen g...
SIGMOD
2005
ACM
14 years 5 months ago
2005
ACM
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
VLDB
1987
ACM
13 years 8 months ago
1987
ACM
is at least ae powerful as SQL. Two well known relational query languages that have a sound theoretical foundation are relational algebra and relational calculus. As SQL is more cl...
ICDE
2007
IEEE
14 years 6 months ago
2007
IEEE
Optimizing nested queries is an intricate problem. It becomes even harder if in a nested query the linking predicate or the correlation predicate occurs disjunctively. We present ...
ICDE
2007
IEEE
13 years 11 months ago
2007
IEEE
The ability to query data streams is of increasing importance and has been identified as a crucial element for modern organizations and agencies. This paper identifies a class o...