[R] Expert systems

[Søren Højsgaard]

I can add that I've recently uploaded the gRain package for "gRAphical Independence Networks", aka probabilistic networks/Bayesian networks.
 
Regards
Søren

________________________________

Fra: r-help-bounces at r-project.org på vegne af Domenico Vistocco
Sendt: ti 29-01-2008 19:07
Til: Ralf Finne
Cc: r-help at r-project.org
Emne: Re: [R] Expert systems



I know that there are packages implementings the probabilistic expert
systems (the so-called probabilistic networks or bayesian networks).
You find (at least) the following packages:

bnlearn (bayesian network structure learning)
deal (learning bayesian networks with mixed variables)
G1DBN (for dynamic bayesian network inference)

Ciao,
domenico

Ralf Finne wrote:
> Hi R-users
> Is there any functions in R that can implement "expert systems"?
> The aim of an expert system is to produce a probable diagnosis
> for a patient with certain symptoms.
> In the classical expert system a mumber of "experts" are asked to make
> "statements" on the probabilities for different diseases when a
> combination of systems would appear.   One typical "expert system"
> uses Fuzzy Logic to suggest the diagnosis.
>
> In more modern systems one tends to make the system self learning
> to improve the system.
>
> Hoping for comments
> Ralf Finne
> Swenska yrkeshögskolan
> Vasa Finland
>
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