no code implementations • 26 Sep 2013 • Charles Tripp, Ross D. Shachter
We seek to learn an effective policy for a Markov Decision Process (MDP) with continuous states via Q-Learning.
no code implementations • 27 Mar 2013 • Ross D. Shachter
The arc reversal/node reduction approach to probabilistic inference is extended to include the case of instantiated evidence by an operation called "evidence reversal."
no code implementations • 27 Mar 2013 • Ross D. Shachter, Leonard Bertrand
The generalized fault diagram, a data structure for failure analysis based on the influence diagram, is defined.
no code implementations • 27 Mar 2013 • Ross D. Shachter
Influence diagrams are a directed graph representation for uncertainties as probabilities.
no code implementations • 27 Mar 2013 • Ross D. Shachter
This paper extends those results by developing a theory of the properties of the diagram that are used by the algorithm, and the information needed to solve arbitrary probability inference problems.
no code implementations • 27 Mar 2013 • Ross D. Shachter, David M. Eddy, Vic Hasselblad, Robert Wolpert
This paper describes a heuristic Bayesian method for computing probability distributions from experimental data, based upon the multivariate normal form of the influence diagram.
no code implementations • 27 Mar 2013 • Ross D. Shachter, Mark Alan Peot
A number of algorithms have been developed to solve probabilistic inference problems on belief networks.
no code implementations • 27 Mar 2013 • Ross D. Shachter
An approximation method is presented for probabilistic inference with continuous random variables.
no code implementations • 27 Mar 2013 • Ross D. Shachter, David Heckerman
Much artificial intelligence research focuses on the problem of deducing the validity of unobservable propositions or hypotheses from observable evidence.!
no code implementations • 27 Mar 2013 • Ross D. Shachter, Stig K. Andersen, Kim-Leng Poh
In recent years, there have been intense research efforts to develop efficient methods for probabilistic inference in probabilistic influence diagrams or belief networks.
no code implementations • 27 Feb 2013 • Adriano Azevedo-Filho, Ross D. Shachter
Laplace's method, a family of asymptotic methods used to approximate integrals, is presented as a potential candidate for the tool box of techniques used for knowledge acquisition and probabilistic inference in belief networks with continuous variables.
no code implementations • 27 Feb 2013 • David Heckerman, Ross D. Shachter
Using this definition, we show how causal dependence can be represented within an influence diagram.
no code implementations • 20 Feb 2013 • David Heckerman, Ross D. Shachter
We present a precise definition of cause and effect in terms of a fundamental notion called unresponsiveness.