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AAAI
1993
15 years 8 months ago
Supporting and Optimizing Full Unification in a Forward Chaining Rule System
The Rete and Treat algorithms are considered the most efficient implementation techniques for Forward Chaining rule systems. These algorithms support a language of limited express...
Howard E. Shrobe
LFP
1990
96views more  LFP 1990»
15 years 7 months ago
Comprehending Monads
Category theorists invented monads in the 1960's to concisely express certain aspects of universal algebra. Functional programmers invented list comprehensions in the 1970�...
Philip Wadler
CORR
2006
Springer
122views Education» more  CORR 2006»
15 years 6 months ago
On the complexity of XPath containment in the presence of disjunction, DTDs, and variables
XPath is a simple language for navigating an XML-tree and returning a set of answer nodes. The focus in this paper is on the complexity of the containment problem for various frag...
Frank Neven, Thomas Schwentick
ENTCS
2006
105views more  ENTCS 2006»
15 years 6 months ago
A Game Semantics for Proof Search: Preliminary Results
We describe an ongoing project in which we attempt to describe a neutral approach to proof and refutation. In particular, we present a language of neutral expressions which contai...
Dale Miller, Alexis Saurin
CI
2004
125views more  CI 2004»
15 years 6 months ago
Reasoning about Actions and Planning with Preferences Using Prioritized Default Theory
This paper shows how action theories, expressed in an extended version of the language B, can be naturally encoded using Prioritized Default Theory. We also show how prioritized d...
Tran Cao Son, Enrico Pontelli