66 search results - page 6 / 14 » Conjunctive Query Containment over Trees |
ICDT
2012
ACM
11 years 10 months ago
2012
ACM
We introduce a representation system for relational data based on algebraic factorisation using distributivity of product over union and commutativity of product and union. We giv...
PODS
2007
ACM
14 years 7 months ago
2007
ACM
In [3], we introduced a framework for querying and updating probabilistic information over unordered labeled trees, the probabilistic tree model. The data model is based on trees ...
FOIKS
2010
Springer
14 years 2 months ago
2010
Springer
A. Falappa, an Abstract Dialogue Framework Guillermo R. Simari Regular Helena Kein¨anen An Algorithm for Generating Nash Stable Coalition Structures in Hedonic Games 15:30-16:00 A...
ADBIS
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. Query rewriting method is proposed for the heterogeneous information integration infrastructure formed by the subject mediator environment. Local as View (LAV) approach t...
EDBT
2006
ACM
14 years 7 months ago
2006
ACM
Abstract. We present in this paper a new model for representing probabilistic information in a semi-structured (XML) database, based on the use of probabilistic event variables. Th...