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TPLP
2010
102views more  TPLP 2010»
13 years 2 months ago
As time goes by: Constraint Handling Rules
Constraint Handling Rules (CHR) is a high-level programming language based on multiheaded multiset rewrite rules. Originally designed for writing user-defined constraint solvers,...
Jon Sneyers, Peter Van Weert, Tom Schrijvers, Lesl...
CORR
2004
Springer
111views Education» more  CORR 2004»
13 years 4 months ago
FLUX: A Logic Programming Method for Reasoning Agents
FLUX is a programming method for the design of agents that reason logically about their actions and sensor information in the presence of incomplete knowledge. The core of FLUX is...
Michael Thielscher
COLING
2000
13 years 5 months ago
Chart Parsing and Constraint Programming
In this paper, lmrsing-as-deduction and constraint programming are brought together to outline a procedure for the speeitication of constraint-based chart parsers. Fob lowing the ...
Frank Morawietz
ICLP
2005
Springer
13 years 10 months ago
HYPROLOG: A New Logic Programming Language with Assumptions and Abduction
We present HYPROLOG, a novel integration of Prolog with assumptions and abduction which is implemented in and partly borrows syntax from Constraint Handling Rules (CHR) for integri...
Henning Christiansen, Verónica Dahl
CSCLP
2005
Springer
13 years 10 months ago
Complete Propagation Rules for Lexicographic Order Constraints over Arbitrary Domains
We give an efficiently executable specification of the global constraint of lexicographic order in the Constraint Handling Rules (CHR) language. In contrast to previous approaches...
Thom W. Frühwirth
LOPSTR
2007
Springer
13 years 10 months ago
Aggregates for CHR through Program Transformation
We propose an extension of Constraint Handling Rules (CHR) with aggregates such as sum, count, findall, and min. This new feature significantly improves the conciseness and expres...
Peter Van Weert, Jon Sneyers, Bart Demoen
LOPSTR
2009
Springer
13 years 11 months ago
A Transformational Approach for Proving Properties of the CHR Constraint Store
Proving termination of, or generating efficient control for Constraint Handling Rules (CHR) programs requires information about the kinds of constraints that can show up in the CHR...
Paolo Pilozzi, Tom Schrijvers, Maurice Bruynooghe
SOFSEM
2009
Springer
14 years 1 months ago
Expressiveness of Multiple Heads in CHR
Abstract. Constraint Handling Rules (CHR) is a general purpose, committedchoice declarative language which, differently from other similar languages, uses multi-headed (guarded) ru...
Cinzia Di Giusto, Maurizio Gabbrielli, Maria Chiar...