829 search results - page 21 / 166 » Location-aware Query Processing and Optimization |
PVLDB
2008
13 years 7 months ago
2008
Unlike traditional database queries, keyword queries do not adhere to predefined syntax and are often dirty with irrelevant words from natural languages. This makes accurate and e...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
We consider the problem of evaluating large numbers of XPath filters, each with many predicates, on a stream of XML documents. The solution we propose is to lazily construct a sin...
VLDB
1995
ACM
13 years 11 months ago
1995
ACM
Traditionally, optimizers are “programmed” to optimize queries following a set of buildin procedures. However, optimizers should be robust to its changing environment to gener...
SIGMOD
1995
ACM
13 years 11 months ago
1995
ACM
Text is a pervasive information type, and many applications require querying over text sources in addition to structured data. This paper studies the problem of query processing i...
DASFAA
2005
IEEE
14 years 1 months ago
2005
IEEE
Peer-to-peer (P2P) computing is gaining more and more significance due to its widespread use currently and potential deployments in future applications. In this paper, we propose ...