A Future for Knowledge Acquisition: 8th European Knowledge - download pdf or read online

By Luc Steels, Guus Schreiber, Walter Van de Velde

ISBN-10: 3540584870

ISBN-13: 9783540584872

This quantity contains a range of the most important papers offered on the 8th eu wisdom Acquisition Workshop (EKAW '94), held in Hoegaarden, Belgium in September 1994.
The publication demonstrates that paintings within the mainstream of information acquisition results in necessary functional effects and places the information acquisition company in a broader theoretical and technological context. The 21 revised complete papers are conscientiously chosen key contributions; they deal with wisdom modelling frameworks, the identity of frequent elements, method points, and architectures and purposes. the quantity opens with a considerable preface through the quantity editors surveying the contents.

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Additional info for A Future for Knowledge Acquisition: 8th European Knowledge Acquisition Workshop, EKAW '94 Hoegaarden, Belgium, September 26–29, 1994 Proceedings

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7c. 7, the❨✥calculus is shown schematically. 7: Addition of two fuzzy numbers using extension principle. Using triangular-shaped membership functions, the determination of the outcome is more or less trivial for addition and subtraction. However, in the case of more complexly shaped membership functions, the application of the extension principle can involve a rather severe calculational load due to calculus on product spaces. Also in the case of more complex functions or mathematical operations, the application of the extension principle often cannot be simplified.

Examples of hedges are: very, slightly, more-or-less, etc. The following two approaches to hedges can be distinguished: ☛ ☛ powered hedges (Zimmermann, 1985) shifted hedges (Lakoff, 1973) These two approaches to hedges are described in the next two sections. 3 addresses a type of shifted hedge, referred to as scaled hedge, that has some of the characteristic properties of powered hedges. 18) ý ✄✝☎ is thet➌linguistic where modifier and ✞ is a parameter specific to a certain linguistic ❳ ❥✰s➡❃❄✽ .

1: Results of Łukasiewicz’s type of T-norm (a) and T-conorm (c) and Zadeh’s type of T-norm (b) and T-conorm (d) for logical connectives and and or. Note that the result in figure (a) is ❥ . 2b) where the above-given T-norm is also known as the bounded sum. 1c, the or connective of two fuzzy propositions results in a fuzzy set which also has complete membership for values of the variable “between” the fuzzy sets (provided the membership functions sum up to 1 or higher). When only two fuzzy propositions are considered, the noise level is high and the noise level is low, intuitively the result when using the operators according to Łukasiewicz can be regarded as more appropriate than the operators according to Zadeh.

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A Future for Knowledge Acquisition: 8th European Knowledge Acquisition Workshop, EKAW '94 Hoegaarden, Belgium, September 26–29, 1994 Proceedings by Luc Steels, Guus Schreiber, Walter Van de Velde


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