1429 search results - page 246 / 286 » Efficient processing of XPath queries using indexes |
167
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SIGMOD
2009
ACM
15 years 10 months ago
2009
ACM
This paper addresses the problem of monitoring the k nearest neighbors to a dynamically changing path in road networks. Given a destination where a user is going to, this new quer...
MM
2003
ACM
15 years 3 months ago
2003
ACM
When querying a news video archive, the users are interested in retrieving precise answers in the form of a summary that best answers the query. However, current video retrieval s...
IDEAS
2000
IEEE
15 years 2 months ago
2000
IEEE
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...
CIKM
2006
Springer
15 years 1 months ago
2006
Springer
By providing an integrated and optimized support for user-defined aggregates (UDAs), data stream management systems (DSMS) can achieve superior power and generality while preservi...
182
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ICDE
2006
IEEE
15 years 11 months ago
2006
IEEE
In this paper, we investigate a new approach to process queries in data stream applications. We show that reference locality characteristics of data streams could be exploited in ...