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DDEP
2000
Springer
15 years 1 months ago
GODDAG: A Data Structure for Overlapping Hierarchies
Abstract. Notations like SGML and XML represent document structures using tree structures; while this is in general a step forward from earlier systems, it creates certain difficul...
C. M. Sperberg-McQueen, Claus Huitfeldt
78
Voted
PODS
1990
ACM
148views Database» more  PODS 1990»
15 years 1 months ago
Stable Models and Non-Determinism in Logic Programs with Negation
Previous researchers have proposed generalizations of Horn clause logic to support negation and nondeterminism as two separate extensions. In this paper, we show that the stable m...
Domenico Saccà, Carlo Zaniolo
DAARC
2007
Springer
97views Algorithms» more  DAARC 2007»
15 years 1 months ago
Null Subjects Are Reflexives, Not Pronouns
Abstract. It has been a prevalent assumption in the literature that phonetically null Subjects of finite clauses are pronouns. This paper examines in detail this empirical generali...
António Horta Branco
TABLEAUX
1995
Springer
15 years 1 months ago
Constraint Model Elimination and a PTTP-Implementation
In constraint logic programming, proof procedures for Horn clauses are enhanced with an interface to efficient constraint solvers. In this paper we show how to incorporate constra...
Peter Baumgartner, Frieder Stolzenburg
73
Voted
AIPS
2008
14 years 12 months ago
CircuitTSAT: A Solver for Large Instances of the Disjunctive Temporal Problem
In this paper, we report on a new solver for large instances of the Disjunctive Temporal Problem (DTP). Our solver is based primarily on the idea of employing "compact" ...
Blaine Nelson, T. K. Satish Kumar