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FSS
2006
85views more  FSS 2006»
15 years 6 months ago
The logic of tied implications, part 2: Syntax
An implication operator A is said to be tied if there is a binary operation T that ties A; that is, the identity A(a, A(b, z)) = A(T (a, b), z) holds for all a, b, z. We aim at th...
Nehad N. Morsi, Wafik Boulos Lotfallah, Moataz Sal...
JLP
2011
94views more  JLP 2011»
15 years 1 months ago
Permission to speak: A logic for access control and conformance
Formal languages for policy have been developed for access control and conformance checking. In this paper, we describe a formalism that combines features that have been developed...
Nikhil Dinesh, Aravind K. Joshi, Insup Lee, Oleg S...
VLDB
1990
ACM
116views Database» more  VLDB 1990»
15 years 10 months ago
A Probabilistic Framework for Vague Queries and Imprecise Information in Databases
A probabilistic learning model for vague queries and missing or imprecise information in databases is described. Instead of retrieving only a set of answers, our approach yields a...
Norbert Fuhr
IJCAI
2007
15 years 7 months ago
Extracting Chatbot Knowledge from Online Discussion Forums
This paper presents a novel approach for extracting high-quality <thread-title, reply> pairs as chat knowledge from online discussion forums so as to efficiently support the...
Jizhou Huang, Ming Zhou, Dan Yang
CORR
2010
Springer
141views Education» more  CORR 2010»
15 years 6 months ago
A database approach to information retrieval: The remarkable relationship between language models and region models
In this report, we unify two quite distinct approaches to information retrieval: region models and language models. Region models were developed for structured document retrieval....
Djoerd Hiemstra, Vojkan Mihajlovic