1179 search results - page 51 / 236 » Query Containment for Data Integration Systems |
EDBT
2009
ACM
15 years 4 months ago
2009
ACM
This paper introduces the problem of modeling urban transportation systems in a database where certain aspects of the data are probabilistic in nature. The transportation network ...
DBPL
2005
Springer
15 years 3 months ago
2005
Springer
We study peer-to-peer ðP2PÞ data integration, where each peer models an autonomous system that exports data in terms of its own schema, and data interoperation is achieved by me...
SIGMOD
2010
ACM
14 years 10 months ago
2010
ACM
Automated extraction of structured data from Web sources often leads to large heterogeneous knowledge bases (KB), with data and schema items numbering in the hundreds of thousands...
MEDINFO
2007
14 years 11 months ago
2007
Managing time-stamped data is essential to clinical research activities and often requires the use of considerable domain knowledge, which is difficult to support within database ...
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...