Basic Concepts of Expert Systems

A knowledge based system approach has been developed to design solid and hollow rotationally symmetric parts using extrusion process. As this expert system is written in PROLOG it is easy to add and delete rules. The basic concepts of Expert Systems and their utility as expert advisers to metalforming process is shown by developing a prototype expert system to a narrow field of extrusion. 

Application of statistics in expert systems is a topic that fills more than a single book. However, some of the investigations presented in the next chapters are based on methods of descriptive statistics. The terms and basic concepts of importance for the interpretation of these methods should be introduced first. Algorithms and detailed descriptions can be found in several textbooks [43-47]. 

This paper is a progress report of the initial phase of an effort which is expected to take several years for completion. Given the present rapid rate of evolution of new concepts in the field of expert systems and artificial intelligence, the development of distributed systems and networks, and continued introduction of new machine features, the design outlined in this paper could be modified during the course of development. Nevertheless, we feel that the basic modular concept will be adhered to, and that modifications will be in the nature of implementation details. 

The book, which begins with a historical perspective and an introductory chapter, includes a basic derivation for more casual readers. It is then devoted to providing new and very recent applications of FST. The first application chapters focus on simple model, binary, and ternary systems, using FST to explain their thermodynamic properties and the concept of preferential solvation. Later chapters illustrate the use of FST to develop more accurate potential functions for simulation, describe new approaches to elucidate microheterogeneities in solutions, and present an overview of solvation in new and model systems, including those under critical conditions. Expert contributors also discuss the use of FST to model solute solubility in a variety of systems. 

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