Sciweavers

789 search results - page 11 / 158
» On Theory Revision with Queries
Sort
View
SIGIR
1999
ACM
15 years 1 months ago
Using a Belief Revision Operator for Document Ranking in Extended Boolean Models
This paper claims that Belief Revision can be seen as a theoretical framework for document ranking in Extended Boolean Models. For a model of Information Retrieval based on propos...
David E. Losada, Alvaro Barreiro
PVLDB
2008
130views more  PVLDB 2008»
14 years 9 months ago
Analyzing and revising data integration schemas to improve their matchability
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...
Xiaoyong Chai, Mayssam Sayyadian, AnHai Doan, Arno...
KR
2004
Springer
15 years 2 months ago
Distance Semantics for Relevance-Sensitive Belief Revision
Possible-world semantics are provided for Parikh’s relevance-sensitive model for belief revision. Having Grove’s system-of-spheres construction as a base, we consider addition...
Pavlos Peppas, Samir Chopra, Norman Y. Foo
ECAI
1994
Springer
15 years 1 months ago
Belief Revision in Multi-Agent Systems
The ability to respond sensibly to changing and conflicting beliefs is an integral part of intelligent agency. To this end, we outline the design and implementation of a Distribute...
Benedita Malheiro, Nicholas R. Jennings, Eugenio O...
IJCAI
1993
14 years 10 months ago
The Complexity of Nested Counterfactuals and Iterated Knowledge Base Revisions
We consider the computational complexity of evaluating nested counterfactuals over a propositional knowledge base. Counterfactual implication models a statement "if p, then q...
Thomas Eiter, Georg Gottlob