Read e-book online Expert Systems in Engineering Applications PDF

By S. G. Tzafestas, A. I. Kokkinaki, K. P. Valavanis (auth.), Spyros Tzafestas (eds.)

Expert procedure expertise is receiving expanding reputation and reputation within the engineering group. this is often given that there truly exists a detailed fit among the functions of the present iteration professional platforms and the necessities of engineering perform. ready by way of a exotic staff of specialists, this ebook presents a balanced cutting-edge presentation of the layout rules of engineering specialist platforms, and a consultant photo in their functions to help successfully the layout, prognosis and operation of advanced commercial vegetation. one of the program components coated are the subsequent: synthesis, business plant format layout, fault analysis, technique keep watch over, snapshot research, desktop communique, electrical energy structures, clever regulate, robotics, and production platforms. The e-book is acceptable for the researcher and the pro. The researcher can shop huge time in looking out the scattered technical info on engineering specialist structures. the pro may have on hand a wealthy set of instructions and methods which are appropriate to a large category of engineering domains.

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From this reduced hierarchy, response times of the reasoning mechanism can be determined. If these are not as desired, the analyzer module can restructure the reduced hierarchy, in order to improve the response time. Two engineering expert systems for process identification are described in [20, 17]. In the first system (called ESPION) the knowledge is represented using rules, whereas in the second (called SEXI) facts and rules are accompanied by certainty factors. ESPION (Expert System for Process IdentificatiON) is a fully data-driven expert system that can handle multiple-input-single-output (MISO) discrete linear models.

Many other knowledge acquisition techniques exist, each one being appropriate for some particular domains or cases and having its advantages and disadvantages. Many techniques were originated from the science of psychology. Some of them are briefly described below, while some others will be used in the next section on Case Study Examples. A. Feedback or Teachback Technique In this technique the roles of the expert and the knowledge engineer are reversed. The knowledge engineer "teaches" the expert in some part of the knowledge that has already been collected.

A unit is defined for every node in the MFM hierarchy, and the node's mass and energy balance equations are modeled as relations. The variables that appear in the balance equations are represented by attributes. To perform the diagnosis, a new concept is defined, namely "the worth of investigating a node" which is a measure of the benefit of investigating that node. The diagnostic process is triggered whenever the monitoring process discovers a malfunctioning goal. G. 1. P. VaIavanis has been investigated.

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