285 search results - page 14 / 57 » Optimization of Real Conjunctive Queries |
COOPIS
2002
IEEE
13 years 11 months ago
2002
IEEE
Mobile services offering multi-feature query capabilities must meet tough response time requirements to gain customer acceptance. The top-k query model is a popular candidate to im...
IJITN
2010
13 years 4 months ago
2010
With the proliferation of inexpensive cameras and the availability of high-speed wired and wireless networks, systems of distributed cameras are becoming an enabling technology fo...
BIRTE
2006
13 years 10 months ago
2006
Real-time enterprises rely on user queries being answered in a timely fashion and using fresh data. This is relatively easy when systems are lightly loaded and both queries and upd...
DLOG
2011
12 years 10 months ago
2011
W3C currently extends the SPARQL query language with so-called entailment regimes, which define how queries are evaluated using logical entailment relations. We describe a sound a...
VLDB
2005
ACM
14 years 7 months ago
2005
ACM
Estimating the selectivity of multidimensional range queries over real valued attributes has significant applications in data exploration and database query optimization. In this p...