257 search results - page 6 / 52 » Learning Unions of Tree Patterns Using Queries |
ICDT
2010
ACM
14 years 11 months ago
2010
ACM
When a query is evaluated under bag semantics, each answer is returned as many times as it has derivations. Bag semantics has long been recognized as important, especially when ag...
70
Voted
DASFAA
2007
IEEE
15 years 4 months ago
2007
IEEE
XML is by now the de facto standard for exporting and exchanging data on the web. The need for querying XML data sources whose structure is not fully known to the user and the need...
86
Voted
SEMWEB
2010
Springer
14 years 7 months ago
2010
Springer
Abstract. In order to effectively and quickly answer queries in environments with distributed RDF/OWL, we present a query optimization algorithm to identify the potentially relevan...
IRI
2008
IEEE
15 years 4 months ago
2008
IEEE
Recovering design patterns applied in a system can help refactoring the system. Machine learning algorithms have been successfully applied in mining data patterns. However, one of...
ECIR
2007
Springer
14 years 11 months ago
2007
Springer
Question answering systems rely on retrieval components to identify documents that contain an answer to a user’s question. The formulation of queries that are used for retrieving...