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    Wyświetlanie 1-4 z 4
    Tytuł:
    Fuzzy similarity measure based on fuzzy sets
    Autorzy:
    Hesamian, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/206878.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    approximate reasoning system
    fuzzy similarity measure
    ranking method
    pattern recognition
    Opis:
    This paper extends the notion of fuzzy similarity measure between fuzzy sets. A definite class of fuzzy similarity measures between fuzzy sets is also introduced. Using some theorems and examples, it is shown that the introduced extended similarity measures satisfy many common and desired properties, based on the common axiomatic definitions, introduced for fuzzy similarity measures. Some illustrative and practical examples from the areas of pattern recognition and approximate reasoning systems are provided in order to present the possible applications of the proposed fuzzy similarity measures.
    Źródło:
    Control and Cybernetics; 2017, 46, 1; 71-86
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fuzzy dynamic programming: interpolative reasoning for an efficient derivation of optimal control policies
    Autorzy:
    Kacprzyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/205739.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    multistage fuzzy control
    fuzzy dynamic programming
    fuzzy system under control
    interpolative reasoning
    Opis:
    We consider multistage optimal control of a fuzzy dynamic system under fuzzy constraints on controls and fuzzy goals on states in the setting of Bellman and Zadeh (1970) and Kacprzyk (1983, 1997). First, we present the solution by dynamic programming chich is a standard techniques in the class of problems considered. We indicato its limitations, mainly related to its inherent curse of dimensionality. We propose to replace the source problem by its auxiliary counterpart with a small number of reference fuzzy states and reference fuzzy controls, solve it by dynamic programming to obtain optimal reference control policies relating optimal reference fuzzy controls to reference fuzzy states. Then, we show the use of an interpolative reasoning approach to derive optimal fuzzy controls, not necessarily reference ones, for current fuzzy states, not necessarily reference ones.
    Źródło:
    Control and Cybernetics; 2013, 42, 1; 63-84
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An algorithm for finding most likely explanations in valuation based systems
    Autorzy:
    Wierzchoń, S.
    Kłopotek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/206796.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    sieć Bayesa
    Bayesian networks
    most probable configurations
    probabilistic reasoning
    valuation based systems
    Opis:
    A method for finding a number of best explanations in so-called valuation based system is presented. Roughly speaking, the method allows to sort (decreasingly or increasingly) a function of many variables without explicit computation of values of this function. The only condition is that the function be decomposable, i.e. can be expressed as a combination of a number of low-dimensional functions called components. Two cases are considered: the combination operator has an inverse and a more elaborated case when the combination operator has no inverse.
    Źródło:
    Control and Cybernetics; 2000, 29, 4; 921-936
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A qualitative trajectory calculus as a basis for representing moving objects in Geographical Information Systems
    Autorzy:
    Weghe, N. van de
    Cohn, A. G.
    Tre, G. de
    Maeyer, P. de
    Powiązania:
    https://bibliotekanauki.pl/articles/970477.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    obiekt ruchomy
    wnioskowanie jakościowe
    specyfikacja jakościowa
    moving objects
    qualitative reasoning
    qualitative representation
    spatio-temporal modelling
    Opis:
    Qualitative formalisms, suited to express qualitative temporal or spatial relationships between entities, have gained wide acceptance as a useful way of abstracting from the real world. The question remains how to describe spatio-temporal concepts, such as the interaction between disconnected moving objects, adequately within a qualitative calculus and more specifically how to use this in geographical information systems. In this paper, the Basic Qualitative Trajectory Calculus (QTCB) for representing and reasoning about moving objects is presented. QTCB enables comparisons between positions of objects at different time points ro be made. The calculus is based on few primitives (i.e., distance and speed constraints), making it elegant and theoretically simple. To clarify the way in which trajectories are represented within QTCB: specific cases of movements (e.g. circular movement) are presented. To illustrate the naturalness of QTC, a "predator-prey" example is studied.
    Źródło:
    Control and Cybernetics; 2006, 35, 1; 97-119
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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