383 search results - page 53 / 77 » Query Containment for Conjunctive Queries with Regular Expre... |
COMAD
2008
13 years 10 months ago
2008
Although many algorithms have been proposed for evaluating XPath queries containing un-ordered axes (child, descendant, parent and ancestor) against streaming XML data, there are ...
FOIKS
2006
Springer
14 years 9 days ago
2006
Springer
It is claimed in [45] that first-order theorem provers are not efficient for reasoning with ontologies based on description logics compared to specialised description logic reasone...
ASUNAM
2010
IEEE
13 years 10 months ago
2010
IEEE
Subgraph matching is a key operation on graph data. Social network (SN) providers may want to find all subgraphs within their social network that "match" certain query gr...
SIGIR
2003
ACM
14 years 1 months ago
2003
ACM
One of the major problems in question answering (QA) is that the queries are either too brief or often do not contain most relevant terms in the target corpus. In order to overcom...
ACTA
2006
13 years 8 months ago
2006
Abstract Selectivity estimation of a boolean query based on frequent itemsets can be solved by describing the problem by a linear program. However, the number of variables in the e...