Sciweavers

AAAI
1990
13 years 11 months ago
A Hierarchical Planner that Generates Its Own Hierarchies
PABLO' is a nonlinear planner that reasons hially by generating abstract predicates. PABLO's abstract search spaces are generated automatically using predicate relaxatio...
Jens Christensen
AAAI
1990
13 years 11 months ago
Probabilistic Semantics for Cost Based Abduction
Cost-based abduction attempts to find the best explanation for a set of facts by finding a minimal cost proof for the facts. The costs are computed by summing the costs of the ass...
Eugene Charniak, Solomon Eyal Shimony
AAAI
1992
13 years 11 months ago
Learning to Disambiguate Relative Pronouns
In this paper we show how a natural language system can learn to find the antecedents of relative pronouns. We use a well-known conceptual clustering system to create a case-based...
Claire Cardie
AAAI
1992
13 years 11 months ago
Lexical Imprecision in Fuzzy Constraint Networks
We define fuzzy constraint networks and prove a theorem about their relationship to fuzzy logic. Then we introduce Khayyam, a fuzzy constraint-based programming language in which ...
James Bowen, K. Robert Lai, Dennis Bahler
AAAI
1990
13 years 11 months ago
Generalized Shape Autocorrelation
This paper presents an efficient and homogeneous paradigm for automatic acquisition and recognition of nonparametric shapes. Acquisition time varies from linear to cubic in the nu...
Andrea Califano, Rakesh Mohan
AAAI
1990
13 years 11 months ago
The Complexity of Closed World Reasoning and Circumscription
Closed world reasoning is a common nonmonotonic technique that allows for dealing with negative information in knowledge and data bases. We present a detailed analysis of the comp...
Marco Cadoli, Maurizio Lenzerini
AAAI
1992
13 years 11 months ago
On the Minimality and Decomposability of Constraint Networks
Constraint networks have been shown to be useful in formulating such diverse problems as scene labeling, natural language parsing, and temporal reasoning. Given a constraint netwo...
Peter van Beek
AAAI
1992
13 years 11 months ago
The Expected Value of Hierarchical Problem-Solving
est case using an abstraction hierarchy in problem-solving can yield an exponential speed-up in search e ciency. Such a speed-up is predicted by various analytical models develope...
Fahiem Bacchus, Qiang Yang