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ACL
1989
15 years 7 months ago
A Three-Valued Interpretation of Negation in Feature Structure Descriptions
Feature structures are informational elements that have been used in several linguistic theories and in computational systems for natural-language processing. A logicaJ calculus h...
Anuj Dawar, K. Vijay-Shanker
ACL
1990
15 years 7 months ago
Multiple Underlying Systems: Translating User Requests into Programs to Produce Answers
A user may typically need to combine the strengths of more than one system in order to perform a task. In this paper, we describe a component of the Janus natural language interfa...
Robert J. Bobrow, Philip Resnik, Ralph M. Weisched...
TCS
2008
15 years 6 months ago
Verification of qualitative Z constraints
We introduce an LTL-like logic with atomic formulae built over a constraint language interpreting variables in Z. The constraint language includes periodicity constraints, comparis...
Stéphane Demri, Régis Gascon
PPDP
2010
Springer
15 years 4 months ago
Semantics-preserving translations between linear concurrent constraint programming and constraint handling rules
The Constraint Simplification Rules (CSR) subset of CHR and the flat subset of LCC, where agent nesting is restricted, are very close syntactically and semantically. The first con...
Thierry Martinez
IAT
2009
IEEE
16 years 1 months ago
Awareness and Forgetting of Facts and Agents
—We propose various logical semantics for change of awareness. The setting is that of multiple agents that may become aware of facts or other agents, or forget about them. We mod...
Hans P. van Ditmarsch, Tim French