167 search results - page 4 / 34 » On the provenance of non-answers to queries over extracted d... |
POST
2012
12 years 1 months ago
2012
Provenance is an increasing concern due to the revolution in sharing and processing scientific data on the Web and in other computer systems. It is proposed that many computer sys...
VLDB
2007
ACM
14 years 13 days ago
2007
ACM
There is a growing consensus that it is desirable to query over the structure implicit in unstructured documents, and that ideally this capability should be provided incrementally...
ICDE
2007
IEEE
14 years 7 months ago
2007
IEEE
Text documents often embed data that is structured in nature. By processing a text database with information extraction systems, we can define a variety of structured "relati...
ICDCSW
2006
IEEE
14 years 11 days ago
2006
IEEE
Business-to-business (B2B) data exchange and integration is a common daily operation in today’s organizations. These operations are crucial since they affect organizations’ ca...
SIGMOD
2008
ACM
14 years 6 months ago
2008
ACM
Over the past few years, we have been trying to build an end-to-end system at Wisconsin to manage unstructured data, using extraction, integration, and user interaction. This pape...