710 search results - page 55 / 142 » Relational Expressive Power of Constraint Query Languages |
EMNLP
2011
12 years 7 months ago
2011
We explore unsupervised approaches to relation extraction between two named entities; for instance, the semantic bornIn relation between a person and location entity. Concretely, ...
ISCI
2008
13 years 7 months ago
2008
This paper considers the theory of database queries on the complex value data model with external functions. Motivated by concerns regarding query evaluation, we first identify re...
PLDI
2004
ACM
14 years 1 months ago
2004
ACM
Regular path queries are a way of declaratively expressing queries on graphs as regular-expression-like patterns that are matched against paths in the graph. There are two kinds o...
CP
1999
Springer
14 years 1 days ago
1999
Springer
Abstract. In this paper, we present a major improvement in the search procedures in constraint programming. First, we integrate various search procedures from AI and OR. Second, we...
ADBIS
2009
Springer
13 years 5 months ago
2009
Springer
We consider the problem of selecting views and indexes that minimize the evaluation costs of the important queries under an upper bound on the disk space available for storing the ...