726 search results - page 66 / 146 » Extended Query Answering Using Integrity Rules |
CIKM
2009
Springer
14 years 3 months ago
2009
Springer
Most of existing methods of keyword search over relational databases find the Steiner trees composed of relevant tuples as the answers. They identify the Steiner trees by discove...
KI
2007
Springer
14 years 2 months ago
2007
Springer
Abstract. Rule-based programming paradigm is omnipresent in number of engineering domains. However, there are some fundamental semantical differences between it, and classic progr...
PVLDB
2008
13 years 8 months ago
2008
Data integration systems often provide a uniform query interface, called a mediated schema, to a multitude of data sources. To answer user queries, such systems employ a set of se...
ICPP
2006
IEEE
14 years 2 months ago
2006
IEEE
Unstructured peer-to-peer networks have become a very popular method for content distribution in the past few years. By not enforcing strict rules on the network’s topology or c...
ISI
2006
Springer
13 years 8 months ago
2006
Springer
Access control mechanisms are commonly used to provide control over who may access sensitive information. However, malicious users can exploit the correlation among the data and in...