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Article #9023SOftware Announcement - AKAT
From: Michaela Petzold
Date: Thu, 19 Oct 1995 00:00
Date: Thu, 19 Oct 1995 00:00
101 lines
5115 bytes
5115 bytes
SOFTWARE ANNOUNCEMENT : Automated Knowledge Acquisition Tool (AKAT) Version 1.2 Copyright AKT Systems This notice contains (i) a brief overview of AKAT (ii) technical details and (iii) a executive summary of AKAT. Further information can be obtained from: AKT Systems Pty Ltd P.O. Box 452 Caulfield East Victoria 3145 AUSTRALIA or by emailing micky@latcs1.oz.au. ======================================================================= AKAT - brief overview Industry and commerce commonly have a large number of databases which essentially contain samples of previous decisions or situations. It would be extremely useful to be able to extract the underlying strategy or knowledge contained within this data. In this way, one could determine which of the attributes have a positive or negative impact on some decision or action. The Automated Knowledge Acquisition Tool (ie AKAT) puts together many of the major techniques for extracting such knowledge. These techniques are essentially simulating the human's capability of learning from experience. Given examples of previous situations, AKAT learns the knowledge contained the examples and then converts the knowledge into a more useful, concise and compact form. For instance, AKAT can produce rules which can be used in a decision-support system or an expert system. AKAT can also be used for data reduction as it converts the examples into a more compact and meaningful form. In essence, AKAT learns knowledge from examples and then determines the more important attributes which uniquely define some concept. ========================================================================== Technical details This version of AKAT runs on an IBM compatible PC under windows. A UNIX version will be ready within the next couple of months. Methods implemented: - decision trees (ID3, Tau feature selection criterion) - AQ (two versions) - neural networks (Hebb's, Delta Rule and Back-propagation) - a method of rule extraction using neural networks (ie BRAINNE). ======================================================================== EXECUTIVE SUMMARY The Automated Knowledge Acquisition Tool (ie AKAT) is a package which learns knowledge from a database of examples and then converts this knowledge into a concise, useful and compact form. In essence, it determines the underlying knowledge contained within the database. Several techniques exist for learning knowledge from examples. In order to use such a technique, one needs to look up the appropriate literature and then code the technique in some fashion. Frequently, the descriptions found are not sufficiently detailed to permit one to code the technique. This is both time-consuming and frustrating for someone who simply wants to use the technique. AKAT contains several of these techniques already implemented in one package; an extra bonus is that there are several neural network implementations also included. This is quite unique and useful as in many cases only one technique is made available as computer code or as a executable. Also, the user interface of AKAT was specifically designed to be simple and and straightforward. The beta testing of AKAT has indeed shown that little explanation is required for the efficient use of AKAT. AKAT is aimed at three distinct groups: (1) people in commerce - these people commonly have large databases of previous experience on issues such as lending, etc. (2) people in industry - here, large collection of records of previous decisions, such as repair or maintenance decisions, are available, (3) students and researchers - students in computer science, computer systems engineering or cognitive science would benefit from both the experimental and teaching value that can be conducted with AKAT. Researchers in universities, research institutes and industry could use AKAT for comparisons and further work. Instances of the successful use of some of the techniques available in AKAT include engineers who wish to determine rules for diagnosing engine faults and bank managers who wish to determine whether a customer should be given a bank loan. AKAT has a large potential in many areas of the community. Both industry and academic users would find AKAT valuable. It ease of use enhances its attractiveness and usability. ======================================================================
Technical Details
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 102449,525b82540037126f,start X-Google-Attributes: gid102449,public X-Google-Thread: 10461e,525b82540037126f,start X-Google-Attributes: gid10461e,public X-Google-Thread: 10d04f,525b82540037126f,start X-Google-Attributes: gid10d04f,public From: micky@latcs1.lat.oz.au (Michaela Petzold) Subject: SOftware Announcement - AKAT Date: 1995/10/19 Message-ID: <DGotH3.Jqz@latcs1.lat.oz.au> X-Deja-AN: 117790833 organization: Comp Sci, La Trobe Uni, Australia newsgroups: comp.ai,comp.ai.neural-nets,aus.ai