365 search results - page 69 / 73 » Answering Non-Monotonic Queries in Relational Data Exchange |
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SIGMOD
1997
ACM
15 years 1 months ago
1997
ACM
Aggregation in traditional database systems is performed in batch mode: a query is submitted, the system processes a large volume of data over a long period of time, and, eventual...
WWW
2009
ACM
15 years 10 months ago
2009
ACM
Web search engines often federate many user queries to relevant structured databases. For example, a product related query might be federated to a product database containing thei...
CIKM
2009
Springer
15 years 2 months ago
2009
Springer
Exact substring matching queries on large data collections can be answered using q-gram indices, that store for each occurring q-byte pattern an (ordered) posting list with the po...
VLDB
2005
ACM
15 years 2 months ago
2005
ACM
Relational, XML and HTML data can be represented as graphs with entities as nodes and relationships as edges. Text is associated with nodes and possibly edges. Keyword search on s...
ICDT
2003
ACM
15 years 2 months ago
2003
ACM
Interest in XML databases has been growing over the last few years. In this paper, we study the problem of incorporating probabilistic information into XML databases. We propose th...