223 search results - page 5 / 45 » Expressive and Efficient Peer-to-Peer Queries |
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
Estimating the cardinality (i.e. number of distinct elements) of an arbitrary set expression defined over multiple distributed streams is one of the most fundamental queries of in...
VLDB
2001
ACM
13 years 11 months ago
2001
ACM
We demonstrate a visual based XML-Relational database system where XML data is managed by commercial RDBMS. A query interface enables users to form path expression based queries a...
VLDB
2003
ACM
14 years 7 months ago
2003
ACM
Due to their expressive power, Regular Expressions (REs) are quickly becoming an integral part of language specifications for several important application scenarios. Many of thes...
SIGMOD
2004
ACM
14 years 6 months ago
2004
ACM
We present BLAS , a Bi-LAbeling based System, for efficiently processing complex XPath queries over XML data. BLAS uses Plabeling to process queries involving consecutive child ax...
CDB
2004
Springer
13 years 10 months ago
2004
Springer
Abstract. Constraint databases that can be described by boolean combinations of polynomial inequalities over the reals have received ample research attention. In particular, the ex...