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JAIR
2008
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14 years 13 days ago
The Complexity of Planning Problems With Simple Causal Graphs
We present three new complexity results for classes of planning problems with simple causal graphs. First, we describe a polynomial-time algorithm that uses macros to generate pla...
Omer Giménez, Anders Jonsson
AIPS
2008
14 years 2 months ago
Causal Graphs and Structurally Restricted Planning
The causal graph is a directed graph that describes the variable dependencies present in a planning instance. A number of papers have studied the causal graph in both practical an...
Hubie Chen, Omer Giménez
AIPS
2007
14 years 2 months ago
On the Hardness of Planning Problems with Simple Causal Graphs
We present three new complexity results for classes of planning problems with simple causal graphs. First, we describe a polynomial time algorithm that uses macros to generate pla...
Omer Giménez, Anders Jonsson
SG
2005
Springer
14 years 6 months ago
Picturing Causality - The Serendipitous Semiotics of Causal Graphs
Abstract. Bayesian nets (BNs) appeared in the 1980s as a solution to computational and representational problems encountered in knowledge representation of uncertain information. S...
Eric Neufeld, Sonje Kristtorn