167 search results - page 17 / 34 » On the provenance of non-answers to queries over extracted d... |
SIGMOD
2010
ACM
13 years 8 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...
KDID
2004
13 years 9 months ago
2004
Abstract. Database systems are islands of structure in a sea of unstructured data sources. Several real-world applications now need to create bridges for smooth integration of semi...
ICDE
2010
IEEE
14 years 7 months ago
2010
IEEE
Dataspace applications necessitate the creation of associations among data items over time. For example, once information about people is extracted from sources on the Web, associa...
ICMCS
2010
IEEE
13 years 9 months ago
2010
IEEE
The usage of peer-to-peer (p2p) networks for music information retrieval (MIR) tasks is gaining momentum. P2P file sharing networks can be used for collecting both search queries ...
VLDB
2004
ACM
14 years 1 months ago
2004
ACM
XML languages, such as XQuery, XSLT and SQL/XML, employ XPath as the search and extraction language. XPath expressions often define complicated navigation, resulting in expensive...