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» Evaluating a Formal Modelling Language
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ISW
2005
Springer
15 years 12 months ago
Evaluating Access Control Policies Through Model Checking
We present a model-checking algorithm which can be used to evaluate access control policies, and a tool which implements it. The evaluation includes not only assessing whether the ...
Nan Zhang 0003, Mark Ryan, Dimitar P. Guelev
SAC
2006
ACM
16 years 11 days ago
Light stemming approaches for the French, Portuguese, German and Hungarian languages
This paper describes and evaluates various general stemming approaches for the French, Portuguese (Brazilian), German and Hungarian languages. Based on the CLEF test-collections, ...
Jacques Savoy
CNL
2009
15 years 7 months ago
Controlled English Ontology-Based Data Access
Abstract. As it is well-known, querying and managing structured data in natural language is a challenging task due to its ambiguity (syntactic and semantic) and its expressiveness....
Camilo Thorne, Diego Calvanese
ICCS
2000
Springer
15 years 10 months ago
A Conceptual Graph Model for W3C Resource Description Framework
With the aim of building a "Semantic Web", the content of the documents must be explicitly represented through metadata in order to enable contents-guided search. Our app...
Olivier Corby, Rose Dieng, Cédric Hé...
SIGIR
2002
ACM
15 years 6 months ago
Two-stage language models for information retrieval
The optimal settings of retrieval parameters often depend on both the document collection and the query, and are usually found through empirical tuning. In this paper, we propose ...
ChengXiang Zhai, John D. Lafferty