Temat: fuzzy expert systems - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Probabilistic fuzzy approach to evaluation of logistics service effectiveness
Autorzy:: Rudnik, K.
Pisz, I.
Powiązania:: https://bibliotekanauki.pl/articles/406962.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: fuzzy expert systems
fuzzy hybrid systems
probabilistic fuzzy systems
probability of fuzzy event
logistics company
logistics service provider
logistics service
effectiveness
Opis:: Logistics service providers offer a whole or partial logistics business service over a certain time period. Between such companies, the effectiveness of specific logistics services can vary. Logistics service providers seek the effective performance of logistics service. The purpose of this paper is to present a new approach for the evaluation of logistics service effectiveness, along with a specific computer system implementing the proposed approach - a sophisticated inference system, an extension of the Mamdani probabilistic fuzzy system. The paper presents specific knowledge concerning the relationships between effectiveness indicators in the form of fuzzy rules which contain marginal and conditional probabilities of fuzzy events. An inference diagram is also shown. A family of Yager’s parameterized t-norms is proposed as inference operators. It facilitates the optimization of system parameters and enables flexible adjustment of the system to empirical data. A case study was used to illustrate the new approach for the evaluation of logistics service effectiveness. The approach is demonstrated on logistics services in a logistics company. We deem the analysis of a probabilistic fuzzy knowledge base to be useful for the evaluation of effectiveness of logistics services in a logistics company over a given time period.
Źródło:: Management and Production Engineering Review; 2014, 5, 4; 66-75
2080-8208
2082-1344
Pojawia się w:: Management and Production Engineering Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Development of a fuzzy inference system for avoiding collision of bucket wheel excavator equipped with electromagnetic (EM) sensors with hard rock inclusions
Opracowanie systemu wnioskowania rozmytego dla uniknięcia kolizji koparki wielonaczyniowej kołowej wyposażonej w czujniki elektromagnetyczne (EM) z wtrąceniami nieurabialnymi
Autorzy:: Galetakis, M.
Vafidis, A.
Vasiliou, A.
Kritikakis, G.
Deligiorgis, V.
Michalakopoulos, T.
Apostolopoulos, G.
Roumpos, C.
Pavloudakis, F.
Powiązania:: https://bibliotekanauki.pl/articles/169373.pdf
Data publikacji:: 2018
Wydawca:: Poltegor-Instytut Instytut Górnictwa Odkrywkowego
Tematy:: fuzzy expert systems
BWE
hard rock inclusions
collision avoidance
system wnioskowania rozmytego
koparka wielonaczyniowa kołowa
wtrącenia nieurabialne
unikanie kolizji
Opis:: This study aims to the development of a Fuzzy Inference System (FIS) that will guide the operator of a Bucket Wheel Excavator (BWE) equipped with geophysical sensors to avoid collision of the excavating buckets with the hard rock formations. The developed FIS uses the probability of occurrence of a hard rock formation (estimated from the measurements of the geophysical sensor) and the operational data of the BWE to estimate the risk for collision and the diggability of the excavated material. The structural and operational characteristics of the used BWEs as well as the applied mining practices were used to modify the structure and the inference rules of the FIS and to maximize the exploitation of the existing factual and experiential knowledge.
W artykule zaprezentowano wyniki badań mających na celu opracowanie Systemu Wnioskowania Rozmytego (FIS), który będzie wspomagał operatora koparki wyposażonej w czujniki geofizyczne, aby uniknąć kolizji koła czerpakowego z twardymi formacjami skalnymi. Opracowany system FIS wykorzystuje prawdopodobieństwo wystąpienia nieurabialnej skały (oszacowanego na podstawie pomiarów czujnika geofizycznego) oraz dane operacyjne koparki w celu oszacowania ryzyka kolizji i urabialności wybieranych utworów. Cechy konstrukcyjne i użytkowe używanych koparek, a także stosowane praktyki górnicze zostały wykorzystane do modyfikacji struktury i zasad wnioskowania FIS oraz maksymalizacji wykorzystania istniejącej wiedzy faktycznej i empirycznej.
Źródło:: Górnictwo Odkrywkowe; 2018, 59, 4; 16-22
0043-2075
Pojawia się w:: Górnictwo Odkrywkowe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Occupational accidents data collection and analysis
Autorzy:: Demichela, M.
Murè, S.
Cigna, C.
Monai, L.
Patrucco, M.
Powiązania:: https://bibliotekanauki.pl/articles/2069533.pdf
Data publikacji:: 2010
Wydawca:: Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:: occupational accidents
fuzzy logic
neural networks
expert systems
data collection
Opis:: Despite of the always growing attention to safety related topics, the enforcement of directives, regulations and technical standards and the improvement of technical solutions aimed to minimize the occupational risks, the number of people dying every day at workplaces is still excessively high. The overall number of injuries is recently decreasing, but both the frequency and the total yearly number of fatalities still remain fundamentalny unchanged in the last years. The main problem with accidental data, as officially reported, is that very often, no evaluation is possible in terms of root causes, e.g. standard violations. Since the target of the analysis is the determination of the causal chain of events that lead to the accident to understand how it happened and how to avoid the occurrence of similar situations, the lack of detailed information lead to many difficulties in the definition of the suitable prevention measures. This paper shows three different, but integrated. methods able to collect, manage and analyze the information related to occurred accidents for preventive purposes.
Źródło:: Journal of Polish Safety and Reliability Association; 2010, 1, 1; 67--74
2084-5316
Pojawia się w:: Journal of Polish Safety and Reliability Association
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Diagnostics of the Student’s Learning Style With the Use of Modern Information Technologies
Autorzy:: Krišová, Zdeňka
Pokorný, Miroslav
Powiązania:: https://bibliotekanauki.pl/articles/16530388.pdf
Data publikacji:: 2013-12-31
Wydawca:: Wydawnictwo Adam Marszałek
Tematy:: learning
learning style
diagnostics of learning styles
adaptive learning systems
model learning style model
methods of diagnostics of
a learning style
typology of learning styles
artificial intelligence
expert systems
linguistic fuzzy model
fuzzy set
fuzzy logic
degree of affiliation
Opis:: The paper deals with learning styles and their initial diagnostics in the process of the student’s learning. It is focused on a method of learning styles recognition with the support of modern information technologies. The paper analyses different methods of the learning styles diagnostics, incorporating this issue into the scientific field of artificial intelligence and presents an idea on how to diagnose a learning style by using an unconventional fuzzy logic linguistic expert system. The expert system was designed to diagnose learning styles of university students in adaptive computer aided learning systems. A significant benefit is continuous numerical evaluation of the student’s degree of affiliation to all learning categories (types of student) with a possibility of simple determination of dominant and subdominant types, the use of a linguistic rule-based decision-making model, which is completely transparent and open, and the use of a decision-making procedure corresponding to the process of human consideration. The paper is an example of an application of modern information technologies in education.
Źródło:: The New Educational Review; 2013, 34; 174-187
1732-6729
Pojawia się w:: The New Educational Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Uncertainty and imprecision in medical diagnosis support
Autorzy:: Straszecka, E.
Powiązania:: https://bibliotekanauki.pl/articles/333413.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: wsparcie diagnostyki medycznej
niepewność
niedokładność
teoria zbiorów rozmytych
systemy ekspertowe
medical diagnosis support
uncertainty
imprecision
Dempster-Shafer theory
fuzzy set theory
expert systems
Opis:: The paper concerns methods of representation of uncertainty and imprecision in successful medical support applications. Advantages of the methods are pointed out and some of their drawbacks are explained. A method of simultaneous representation of imprecision of symptoms and uncertainty of diagnostic rules is proposed. The method suggests an extension of the Dempster-Sahfer theory for fuzzy focal elements. An example of the method is given and their links as well differences from previous approaches are discussed. Conclusions about uncertainty and imprecision representation in medical diagnosis support are provided.
Źródło:: Journal of Medical Informatics & Technologies; 2012, 19; 11-22
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: The neurological disease classification by means of its single descriptors coverage finding
Autorzy:: Piecha, J.
Zyguła, J.
Powiązania:: https://bibliotekanauki.pl/articles/333946.pdf
Data publikacji:: 2007
Wydawca:: Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:: wnioski automatyczne
medyczne systemy ekspertowe
choroby neurologiczne
decyzje rozmyte
czynniki klasyfikacji chorób
automatic conclusions
medical expert systems
neurological diseases
fuzzy decisions
disease classification factors
Opis:: The reported diagnosis supporting system was provided with knowledge base determined by the disease characteristic features descriptors that were recorded in conclusions table. Every descriptor defines the elementary rules related to every disease factor threshold value, recognised as a sign of the disease presence (the over-gone physiological state). The introduced definitions of the disease characteristics and some fuzzy logic proposals implementations were defined for the decision making system development.
Źródło:: Journal of Medical Informatics & Technologies; 2007, 11; 311-319
1642-6037
Pojawia się w:: Journal of Medical Informatics & Technologies
Dostawca treści:: Biblioteka Nauki

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