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Purpose of ESTA

Posted: 24 Oct 2006 8:31
by Crab
Hello,

What is the purpose of ESTA? Do you know any Text to Graphics conversion software?

Thanks.

Posted: 24 Oct 2006 13:59
by Audun Tönnesen
ESTA is almost 20 years old. It can search a state-space (of text symbols) chaining forward, and chaining backwards.
The 'states' in the stae space consist of 'sections.' Within a 'section' you can establish, dentify (or discard) parameters by 'backward chaining,' which corresponds roughly to the prolog backtracking mechanism. This way, you can 'move forward' from section to section, thus implementing 'forward chaining state space search.'
The terminology of searching state spaces is explained in traditional texts like Bratko, C&M, etc.
Cheers,

Posted: 24 Oct 2006 14:04
by Audun Tönnesen
Oh, i forgot: while you can do all this programatically with Visual Prolog code, ESTA is a high-level 'shell,' which can be used by non-programmers too. You just populate the generic 'shell' with domain-specific facts and rules.
(My) experience indicates that these kinds of expert systems have very limited use. But for instance the 'so called' help experts that you'll find attached to many hardware components may constitue a well known example. For instance look at 'Windows network connection helper.'

Posted: 24 Oct 2006 15:21
by Crab
If it is so as is described by you then why it is named ESTA? _, _, Text Animation? Where is that animation? And if i need Text Animation or Text to Graphics conversion using porlog, what is the way?

Posted: 24 Oct 2006 16:26
by Yuri Ilyin
Please think about ESTA as one of the examples of an expert system

Animaiton word just subscribes, that you can see pictures while expert system journey :wink:

Re:

Posted: 15 Mar 2013 2:51
by Azadi.Isatis
Hello
I need to Esta for Implementation Project
How can I Download and use Esta????
Please Help Me

Posted: 15 Mar 2013 9:26
by Thomas Linder Puls
ESTA can't be downloaded, it is one of the examples in the Commercial Edition.

Re:

Posted: 15 Mar 2013 14:19
by Azadi.Isatis
ok
but I need this example or download visual prolog Commercial edition FREE

Please give me link Download Free :cry: :cry: :cry: :cry:

Posted: 15 Mar 2013 14:54
by Thomas Linder Puls
Being part of the commercial edition implies that it is not free.

Posted: 15 Mar 2013 15:39
by Azadi.Isatis
Ok Tanx

Do Exist Link for Correlation VB6 And Clips ????
:?: :?: :?:

Posted: 18 Mar 2013 12:03
by Paul Cerkez
as to CLIPS: Are you referring to the C Language Inference Production System?

if yes, there is a VBX (OCX ?) plug-in available for purchase. I used it it about 10 years ago for particular expert system where the customer specified I had to use CLIPS. I am not sure if it is still available on the market though and I no longer have a copy of it.

here is the last link to it that I knew about it.

http://bellsouthpwp.net/t/e/teolson/index.htm

Re:

Posted: 18 Jul 2013 2:04
by whyteian
Paul Cerkez wrote:as to CLIPS: Are you referring to the C Language Inference Production System?

if yes, there is a VBX (OCX ?) plug-in available for purchase. I used it it about 10 years ago for particular expert system where the customer specified I had to use CLIPS. I am not sure if it is still available on the market though and I no longer have a copy of it.

here is the last link to it that I knew about it.

http://bellsouthpwp.net/t/e/teolson/index.htm
I used Haley's VBX OCX product way back in 1996. It was replaced by other Haley Limited products for embedding rules. It is no longer available. CLIPS though is still being developed by Gary Riley at http://clipsrules.sourceforge.net/.

With VBX I recall creating the rules in a text file (CLP) and passing data back and forth form Visual Basic to the VBX engine via a callback routine (not particularly elegant). The same thing could be done compiling CLIPS to a DLL and linking from Visual Prolog. I am not sure if this comment is still relevant but I thought I would add it anyway.

Also for anyone interested, Paul Haley started another company, Automata Inc, and he has a professional blog at http://haleyai.com/wordpress/ (Oracle eventually bought out Haley Limited). One of Paul's recent posts is entitled "Confessions of a production rule vendor. Part 1" in which he talks about the diminishing adequacy of production rules. He goes on to ask the question why BRMS do not use Prolog and that he believes the use of Prolog is on the rise (albeit IBM Watson Prolog - see http://www.cs.nmsu.edu/ALP/2011/03/natu ... on-system/). Okay, now I am rambling ...