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Computer System l The system has been implemented using Prolog language in an MS?DOS environment. Prolog was chosen because it offers a well known and flexible environment in which fuzzy reasoning may be easily implemented. l The current version of the xx program when compiled with WATFOR77 result s in an executable code of about 270K bytes. Typical run time, when run on a XX computer (an IBM compatible machine) operating at 4.77 Mhz with 640K RAM, ranges from 10 min to 2h, depending on the size (or complexity) of the problem. l Time consuming procedures have been implemented in C?language and directly linked to the Prolog environment. l The xx process, once the xx's data has been entered, requires approximately 180 seconds. l It should be noted that the computation was done with a 20 Hhz, 80386 209;based microcomputer equipped with a 80387 math co?processor. l The computer programs used for the analyses, one based on the xx method and the other based on the new method, were written in FORTRAN with a compiler that supports the math co?processor. l Lisp, Prolog give maximum flexibility but also maximizes development time. l Internal representation is the way a model is represented in the computer. l An interactive menu-driven procedure is used in this study l Shell can be develop very fast at the cost of time fairly severe limitations. l While there is no measurable saving of time for the case involving five criteria, the saving is dramatic for the case involving 10 criteria -- the computation time reduces from 10 hr 40 min to about 1 min. l This combination is being implemented in an objected?oriented programming environment (Smalltalk?80 system) to solve problems encountered in construction xxx.
Method / Approach / Study / Process Model / Equation /Algorithm / Rule / Formula / Technique l A discussion is presented of a problem-solving system l To improve the efficiency of the method, the following approach may be applied. l In order to an investigation was made to find the causes of the l Although large collections of rules and equations have been complied, none are generally accepted l This approach will be explained and discussed thoroughly in the body of the report. l This can be accomplished by l This algorithm to compute the total cost can be described step by step as follows: l The above preliminary analysis has provided important information l Various methods have been proposed for selecting an optimum... l These concepts have been applied to l On the basis of the concept mentioned above, l This can be achieved by l This fact suggests that a new concept l This was accomplished by taking ... l The preparatory stage is very time consuming process. l Test are performed for validity, completeness, and compatibility l There is little hope of achieving successful ... l There has been an increasing awareness of the potential of using most ..so far made have not taken this approach, with the exception of l Only a few studies can be found. l It is a very tedious process to go through l It is only when .. has been completed that .. may be effected l The entire interpretation process is conducted in one's head. l These approaches are sometimes very tedious. l Several techniques can be used l A polynomial parametric model can be written as [the following]/[follows]: l A xx model is constructed/formulated using xx. l A xx model represents an xx by its xx. l A process decision model captures the logic essential to l From the equation above, xx is equal to the summation of xx times the ... l The validity of a xx model can be checked using Euler's formula. l Given a model, one can mathematically determine whether ... or ... l Equations for xx need to be derived and implemented in the system. l A number of heuristic rules have been developed for l Optimum .. techniques can be made more reliable by ... so that l An algorithm based on the characteristic ... is used to determine l Euler's formula states the following: l The completed model should agree with the formula. l For manufacturing purposes, a detailed and precise model of the object is necessary l Engineering design models are very well defined; therefore, l To keep the domain narrow enough to be implementable, yet wide enough to be useful. Point of View l from an implementation standpoint, l From the point of view of this application, l From this point of view, Zadeh suggested an inference rule named xxx (CRI for short). l Information is the meaningful interpretation and correlation of some aggregation of data in order to allow one to make decisions.
l From a practical point of view, the computational aspects of an FLC require a simplification of the fuzzy control algorithm. l The use of a hammer to insert screws, although partly effective, tends to distort, destroy, and generally defeat the purpose of using a screw [Kusiak AI Implications for CIM p.129]
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