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Towards a fuzzy computability?
(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
Article.
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Article.
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The subject of the present paper is the study of fuzzy computability based on fuzzy Turing machines. Two different models of fuzzy Turing machines will be discussed. It is shown that most work on fuzzy mathematics may be ...
Method of least squares applied to the generalized modus ponens with interval-valued fuzzy sets
(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
Article.
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Article.
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Firstly we present a geometric interpretation
of interval-valued fuzzy sets. Secondly, we apply the method of least squares to the fuzzy inference rules when working with
these sets. We begin approximating the lower and ...
On the global stability of Takagi-Sugeno general model
(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
Article.
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Article.
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Global stability of Takagi-Sugeno (T-S) fuzzy model is presented. First, stability conditions for T-S fuzzy model presented by Tanaka and Sugeno are reviewed. Second, new theorems for the stability of the general form of ...
The limits of fuzzy logic
(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
Article.
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Article.
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In this paper we try to answer to the following questions: What can be made
by applying fuzzy logic? and What can not be made by applying fuzzy logic?
The question will be analyzed from both theoretical and applied point ...
Some practical problems in fuzzy sets-based decision support systems
(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
Article.
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Article.
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In this paper some problems arising in the interface between two different areas, Decision Support Systems and Fuzzy Sets and Systems, are considered. The Model-Base Management System of a Decision Support System which ...
Idempotent operators on a finite chain
(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
Article.
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Article.
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This work is devoted to find and study
some possible idempotent operators on a finite chain $L$. Specially,
all idempotent operators on $L$ which are associative, commutative and
non-decreasing in each place are ...
Fast prototyping of computing-oriented fuzzy logic systems
(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
Article.
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Article.
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In this paper we propose to explore different dedicated hardware solutions in terms of area-speed trade-offs for computing-oriented fuzzy logic systems in the algorithmic abstraction level that fulfil the application ...
A mixed-signal architecture for high complexity CMOS fuzzy controllers
(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
Article.
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Article.
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Analog circuits provide better area/power efficiency than their digital counterparts for low-medium precision requirements [1]. This limit in precision, as well as the lack of design tools when compared to the
digital ...
On the learning of weights in some aggregation operators: the weighted mean and OWA operators
(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
Article.
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Article.
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We study the determination of weights for two types of aggregation operators: the weighted mean and the OWA operator. We assume that there is at our disposal a set of examples for which the outcome of the
aggregation ...
Truth and utility in fuzzy logic
(Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 1999)
Article.
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Article.
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The notion of degree of truth used in fuzzy logic can be interpreted in terms of
partial truth or in terms of utility. By investigating how these interpretations fit in with Tarski's definition of truth, this paper ...