654 search results - page 30 / 131 » Complexity of Answering Queries Using Materialized Views |
EMNLP
2008
13 years 10 months ago
2008
Complex questions that require inferencing and synthesizing information from multiple documents can be seen as a kind of topicoriented, informative multi-document summarization. I...
PODS
1999
ACM
14 years 24 days ago
1999
ACM
Semistructured data occur in situations where information lacks a homogeneous structure and is incomplete. Yet, up to now the incompleteness of information has not been re ected b...
ICDT
2003
ACM
14 years 1 months ago
2003
ACM
We state and solve the query reformulation problem for XML publishing in a general setting that allows mixed (XML and relational) storage for the proprietary data and exploits redu...
SUM
2009
Springer
14 years 3 months ago
2009
Springer
Abstract. In this paper we introduce a fixpoint semantics for quantitative logic programming, which is able to both combine and correlate evidence from different sources of infor...
VLDB
2001
ACM
14 years 27 days ago
2001
ACM
XML has emerged as the standard data exchange format for Internet-based business applications. This has created the need to publish existing business data, stored in relational da...