365 search results - page 12 / 73 » Answering Non-Monotonic Queries in Relational Data Exchange |
DEXAW
2004
IEEE
15 years 1 months ago
2004
IEEE
Data exchange between embedded systems and other small or large computing devices increases. Since data in different data sources may refer to the same real world objects, data ca...
AMW
2009
14 years 10 months ago
2009
We investigate the space requirements for summaries needed for maintaining exact answers to aggregate queries over histories of relational databases. We show that, in general, a su...
CORR
2010
Springer
14 years 8 months ago
2010
Springer
XML has emerged as the standard for representing and exchanging data on the World Wide Web. It is critical to have efficient mechanisms to store and query XML data to exploit the...
ICDE
2010
IEEE
15 years 4 months ago
2010
IEEE
– Keyword search (KWS) over relational data, where the answers are multiple tuples connected via joins, has received significant attention in the past decade. Numerous solutions ...
DEXA
2007
Springer
15 years 3 months ago
2007
Springer
Abstract. Sharing of structured data in decentralized environments is a challenging problem, especially in the absence of a global schema. Social network structures map network lin...