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Fundamenta Informaticae
EN The main goal of the paper is to show the idea of incorporating paradigmatic and syntagmatic relations into processing data stored in information tables using rough set methods. Input data, in a tabular form, are used in many machine learning and computational intelligence methods and algorithms, am[...]
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63%
Fundamenta Informaticae
EN The aim of this paper is to present the methods and algorithms of information systems decomposition. In the paper, decomposition with respect to reducts and the so-called global decomposition are considered. Moreover, coverings of information systems by components are discussed. An essential differe[...]
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Fundamenta Informaticae
2013 Vol. 126, nr 4 335--351
EN In the paper, a computer tool called ROSECON, used for modeling and analyzing systems of concurrent processes, is described. A special attention is focused on synthesis and verification of concurrent systems specified by information systems. Two kinds of models, synchronous and asynchronous, are con[...]
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63%
Fundamenta Informaticae
EN The aim of this paper is to give the basic view on computing consistent extensions and restrictions of information systems noting some order properties of information system families. Information systems are understood in the Pawlak’s sense as the systems of knowledge representation. The extension a[...]
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Fundamenta Informaticae
EN The paper gives the outline of an ontology for the rough set theory and its applications. This ontology will be applied in intelligent searching the Rough Set Database System. A specialized editor from the Protege system is used to define the ontology.
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Zeszyty Naukowe Politechniki Rzeszowskiej. Matematyka
2002 z. 26 [199] 205-226
PL Odkrywanie wiedzy z dużych baz danych jest jednym z istotnych i aktualnych problemów badawczych. W referacie przedstawione zostaną pewne metody automatycznego odkrywania modeli współbieżnych zdanych eksperymentalnych ([4],[5-6]). Metody te oparte są na teorii zbiorów przybliżonych [l] i teorii sieci[...]
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63%
Fundamenta Informaticae
EN This paper provides new algorithms for computing consistent and partially consistent extensions of information systems. A maximal consistent extension of a given information system includes only objects corresponding to known attribute values which are consistent with all rules extracted from the or[...]
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63%
Fundamenta Informaticae
EN Design of concurrent systems under various constraints is an important problem in real-life applications in many domains (for example, automatics, robotics, software engineering) and has earlier been discussed in the literature using different formalisms. In this paper some approaches to the concurr[...]
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63%
Fundamenta Informaticae
EN This paper presents an approach to discovering concurrent models from data tables using the ROSECON software system. The acronym ROSECON comes from "ROugh SEts and CONcurrency". The models created using ROSECON have the form of Coloured Petri Nets. The ROSECON system is based on the rough set theory[...]
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63%
Fundamenta Informaticae
EN The synthesis problem of concurrent systems has earlier been discussed in the literature using different types of formalisms. This paper presents a new method for discovery of asynchronous concurrent models from experimental tables by using a rough set approach. The proposed method can be applied to[...]
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63%
Fundamenta Informaticae
EN The synthesis problem of concurrent data models from experimental tables based on rough set approach has earlier been discussed [14], [15]. Classical Petri nets have been used as a model for concurrency. In this paper we propose the nets with inhibitor expressions and Coloured Petri Nets as models f[...]
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Fundamenta Informaticae
EN This paper deals with reconstruction of net models of concurrent systems described by information systems changing in time. Constructed net models have the form of coloured Petri nets. Resulting nets are constructed on the basis of decomposed information systems. In many practical cases, a descripti[...]
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Fundamenta Informaticae
EN Our research is focused on creation of a new object-oriented programming language for Physarum polycephalum computing. Physarum polycephalum is a one-cell organism that can be used for developing a biological architecture of different abstract devices, among others, the digital ones. In the paper, w[...]
14
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International Journal of Applied Mathematics and Computer Science
2018 Vol. 28, no. 3 531--544
EN We define games on the medium of plasmodia of slime mould, unicellular organisms that look like giant amoebae. The plasmodia try to occupy all the food pieces they can detect. Thus, two different plasmodia can compete with each other. In particular, we consider game-theoretically how plasmodia of Ph[...]
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Bio-Algorithms and Med-Systems
EN The research concerns designing computer methods of a non-invasive diagnosis of selected larynx diseases. The proposed approach is based on a signal analysis in the time domain. Two diseases are considered: Reinke's edema and laryngeal polyp. The paper presents a medical background, basic problems, [...]
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Fundamenta Informaticae
EN In the paper, we focus on ant-based clustering time series data represented by means of the so-called delta episode information systems. A clustering process is made on the basis of delta representation of time series, i.e., we are interested in characters of changes between two consecutive data poi[...]
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Fundamenta Informaticae
EN Petri nets are one of well established tools in both theoretical analysis and practical modelling of concurrent systems as well as approximate reasoning. However, practical usage of Petri nets is limited by the lack of computer tools which would allow to handle large and complex nets in a comfortabl[...]
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Fundamenta Informaticae
EN In 1990 Shyi-Ming Chen et al. presented a new approach to knowledge representation using fuzzy Petri nets (FPN). A fuzzy Petri net model allows a structural representation of knowledge and has a systematic procedure for supporting fuzzy reasoning. In this paper we propose an algebraic (matrix) repr[...]
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Fundamenta Informaticae
EN In the paper, we attempt to identify the crucial determinants of innovativeness economy and the correlations between the determinants. We based our research on the Innovativeness Union Scoreboard (IUS) dataset. In order to solve the problem, we propose to use the Double Self-Organizing Feature Map ([...]
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International Journal of Applied Mathematics and Computer Science
2015 Vol. 25, no. 2 377--387
EN In the paper, the problem of extraction of complex decision rules in simple decision systems over ontological graphs is considered. The extracted rules are consistent with the dominance principle similar to that applied in the dominance-based rough set approach (DRSA). In our study, we propose to us[...]
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