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Wyświetlanie 1-15 z 62
Tytuł:
Validity and timing in decision support systems
Autorzy:
Petrov, O.
Horoshko, V.
Aleksander, M.
Basiura, B.
Hokhlacheva, Y.
Powiązania:
https://bibliotekanauki.pl/articles/314686.pdf
Data publikacji:
2018
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
decision support systems
validity
timing
process
Opis:
Based on the principle of synthesizing the matrix of transitional probabilities, processes of decision-making support by means of the truncated procedures of type (k/n)n (k≤n) are considered. Obtained expressions for calculating the time-efficiency of the processes of decision support using procedures type (k/4)4 are shown. There are given calculated by the expressions obtained data time efficiency, which will enable a quantitative comparison between different procedures and select the best of them on the basis of specific practical tasks.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2018, 19, 12; 1116-1122
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
From transocean routes to global networks: a framework for liner companies to build service networks
Autorzy:
Shi, X.
Voss, S.
Powiązania:
https://bibliotekanauki.pl/articles/308099.pdf
Data publikacji:
2008
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
liner
port
logistics
networks
decision support systems
Opis:
During the previous two decades liner carriers within maritime shipping have broken the barriers from being pure transportation providers towards being logistics service providers. Most of the top 20 liner carriers worldwide hale set up spin-offs providing services from local booking up to 3rd party logistics services, combining the business advantages of tight linkages with liners together with the negotiation freedom with demanding customers by providing an extension of service coverage. Economical evaluations of transocean routes and global networks are of interest for decision makers responsible for business strategies as well as for operations. It is crucial to achieve appropriate judgements about which liner routes are profitable and how to build better service networks so that the companies' brand could be attractive to, e.g., ship- pers, including exporters, importers and forwarding agents. In this paper we discuss the corresponding trade-offs as well as related decision support systems of relevant service providers and companies.
Źródło:
Journal of Telecommunications and Information Technology; 2008, 3; 35-43
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calculation model of teaching costs in a university
Autorzy:
Jucha, M.
Bocewicz, G.
Matuszek, J.
Powiązania:
https://bibliotekanauki.pl/articles/118303.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
teaching costs
fuzzy logic
decision support systems
Opis:
A calculation model of teaching costs in a university is a system of guidelines, notions and relations to facilitate an assessment of the costs generated by individual university departments, majors, subjects etc. The existing calculation models based on the assessment of costs with the use of precision data prove to be ineffective in practice. The major drawback of these systems is the fact that it is not possible to take into account non-precision data in relation to cost generating factors (e.g. the number of didactic groups, hourly rates etc.). This article presents the author’s own proposal of a cost calculation model based on the formalism of fuzzy logics (with the use of the L-R representation). On the basis of the model proposed, it is possible to assess the costs of an academic subject with imprecise information concerning cost generating factors, or the values of those factors are assessed which imply the values set of the cost of a subject.
Źródło:
Applied Computer Science; 2010, 6, 2; 19-40
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sources of knowledge conflicts in cognitive agent’s architecture in DSS
Autorzy:
Sobieska-Karpińska, Jadwiga
Hernes, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/432004.pdf
Data publikacji:
2014
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
Knowledge conflicts
cognitive agents
decision support systems
Opis:
This paper presents the problem of knowledge conflicts identification in the architecture of cognitive agents. The agents operate at the decision support systems. The types and the sample of cognitive agents architecture was characterized in the first part of article. Next, the customer relationship management agent was described and the causes of knowledge conflicts were indicated. The final part of article contains the analysis of sources of knowledge conflicts and their examples related to decision-making process.
Źródło:
Informatyka Ekonomiczna; 2014, 3(33); 102-113
1507-3858
Pojawia się w:
Informatyka Ekonomiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reduction in the number of comparisons required to create matrix of expert judgment in the comet method
Autorzy:
Sałabun, W.
Powiązania:
https://bibliotekanauki.pl/articles/407391.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
MCDM
COMET
decision making
decision support systems
multiple-criterion optimization
Opis:
Multi-criteria decision-making (MCDM) methods are associated with the ranking of alternatives based on expert judgments made using a number of criteria. In the MCDM field, the distance-based approach is one popular method for receiving a final ranking. One of the newest MCDM method, which uses the distance-based approach, is the Characteristic Objects Method (COMET). In this method, the preferences of each alternative are obtained on the basis of the distance from the nearest characteristic objects and their values. For this purpose, the domain and fuzzy numbers set for all the considered criteria are determined. The characteristic objects are obtained as the combination of the crisp values of all the fuzzy numbers. The preference values of all the characteristic object are determined based on the tournament method and the principle of indifference. Finally, the fuzzy model is constructed and is used to calculate preference values of the alternatives. In this way, a multi-criteria model is created and it is free of rank reversal phenomenon. In this approach, the matrix of expert judgment is necessary to create. For this purpose, an expert has to compare all the characteristic objects with each other. The number of necessary comparisons depends squarely to the number of objects. This study proposes the improvement of the COMET method by using the transitivity of pairwise comparisons. Three numerical examples are used to illustrate the efficiency of the proposed improvement with respect to results from the original approach. The proposed improvement reduces significantly the number of necessary comparisons to create the matrix of expert judgment.
Źródło:
Management and Production Engineering Review; 2014, 5, 3; 62-69
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The n-optimality and inconsistency of knowledge postulates of consensus determining in decision support systems
Autorzy:
Sobieska-Karpińska, Jadwiga
Hernes, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/432066.pdf
Data publikacji:
2013
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
decision support systems
postulates of consensus
knowledge conflicts
Opis:
This article presents the problem of consensus determining postulates defined in decision support systems. The consensus determining methods and the general postulates for consensus estimation and their characteristics are presented in the first part. Next, the definitions of new postulates pertaining to decisions support systems were elaborated, and the possibility of their use in practical solutions is presented. The consensus function granting these postulates is also characterized. The application of these postulates, as a consequence, can lead to the process of making decisions will be more flexible, and the risk involved in decisions will be significantly reduced.
Źródło:
Informatyka Ekonomiczna; 2013, 3(29); 152-161
1507-3858
Pojawia się w:
Informatyka Ekonomiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Istota funkcji odległości w wyznaczaniu consensusu w systemach wspomagania decyzji
The essence of a distance functions in consensus determining in decision support systems
Autorzy:
Sobieska-Karpińska, Jadwiga
Hernes, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/425088.pdf
Data publikacji:
2014
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
decision support systems
knowledge conflicts
distance functions
consensus methods
Opis:
The purpose of the article is to present the essence of distance functions, which calculating is a key phase of consensus determining process in the situation of knowledge conflicts appearing in decision support systems. In the first part of the article, distance function and its general definition are characterized. Next, the definitions of distance functions with regard to the sample attributes of a structure of decision, such as the real numbers, the dates, incomplete ordered partitions and incomplete strict partial orders, are presented.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2014, 2(44); 82-94
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heuristic Analysis of Transport System Efficiency Based on Movement of Mobile Network Users
Autorzy:
Sabak, G.
Powiązania:
https://bibliotekanauki.pl/articles/309030.pdf
Data publikacji:
2009
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
congestion detection
decision support systems
neural networks
transport system
Opis:
The paper describes results of introductory research focused on possibility to use location data available in a mobile network for the analysis of transport system status and efficiency. The details of a system capable of detecting abnormal traffic situation (accidents, heavy congestion) are described. This system (called VASTAR) uses a neural network to learn and store certain characteristic of the analyzed part of a road system. Based on a measured divergence from normal characteristic, a notification about non-typical situation is triggered. The results of a computational experiment using real-world location data and simulation of abnormal situation are provided. The proposed system can be a relatively low cost way to improve competitiveness of a mobile network operator by allowing him to offer new type of informational service. It could also aid municipal authorities by providing support for decisions regarding road traffic control and management and be used by emergency services as a monitoring an alarming tool for detecting abnormal road traffic situations when other means of observation are unavailable.
Źródło:
Journal of Telecommunications and Information Technology; 2009, 3; 95-102
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Maintenance as a combination of intelligent IT systems and strategies: a literature review
Autorzy:
Metso, L.
Baglee, D.
Marttonen-Arola, S.
Powiązania:
https://bibliotekanauki.pl/articles/406710.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
eMaintenance
information systems
intelligent manufacturing systems
decision support systems
Opis:
This study provides a systematic review of the existing academic literature describing the key components of eMaintenance. The current literature is reviewed by utilizing a number of academic databases including Scopus, SpringerLink and ScienceDirect, and Google Search is used to find relevant academic and peer-reviewed journal articles concerning eMaintenance. The literature describes eMaintenance as an advanced maintenance strategy that takes advantage of the Internet, information and communication technologies, wireless technologies and cloud computing. eMaintenance systems are used to provide real time analyses based on real time data to offer a number of solutions and to define maintenance tasks. The collection and analysis of appropriate maintenance and process data are critical to create robust ‘maintenance intelligence’ and finally improvements in manufacturing costs, safety, environmental impact, and equipment reliability. This paper describes how the scientific discussion on eMaintenance has expanded significantly during the last decade, creating a need for an up-to-date review. As a conclusion, three research gaps in the area of eMaintenance are identified, including evaluating the benefits of eMaintenance, agreeing on a comprehensive definition, and developing tools and structures for cooperative eMaintenance.
Źródło:
Management and Production Engineering Review; 2018, 9, 1; 51-64
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Joint allocation and transportation problem in supply network optimisation
Autorzy:
Filcek, G.
Powiązania:
https://bibliotekanauki.pl/articles/407403.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
supply networks
optimization
convex optimization
heuristic algorithms
decision support systems
Opis:
The paper concerns joint allocation and transportation as an optimization problem in selected supply networks. The network consists of a set of suppliers of the raw material, a set of production units and a set of product receivers. The raw material is treated as fast perishing good like vegetables or fruits. The production units are described by time models. In the optimization process, the time of the production and cost of the transportation is taken into account. The objective function is in general non-convex function of raw material allocation and transportation plans of the raw material and the product. To solve the problem considered, exact and heuristic algorithms have been developed and presented. To solve convex problems, solver Lingo developed by Lindo systems is proposed. The idea of a computer decision supported system integrating all presented algorithms is presented as well as four numerical examples illustrating some properties of the assumed supply network model.
Źródło:
Management and Production Engineering Review; 2012, 3, 3; 3-10
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Ontological Framework for Representing Clinical Knowledge in Decision Support Systems
Autorzy:
Iannaccone, M.
Esposito, M.
Powiązania:
https://bibliotekanauki.pl/articles/307826.pdf
Data publikacji:
2014
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
Clinical Practice Guidelines
decision support systems
ontology
Rules
Unstructured Data
Opis:
In the last decades, clinical evidence and expert consensus have been encoded into advanced Decision Support Systems (DSSs) in order to promote a better integration into the clinical workflow and facilitate the automatic provision of patient specific advice at the time and place where decisions are made. However, clinical knowledge, typically expressed as unstructured and free text guidelines, requires to be encoded into a computer interpretable form suitable for being interpreted and processed by DSSs. For this reason, this paper proposes an ontological framework, which enables the encoding of clinical guidelines from text to a formal representation, in order to allow querying, advanced reasoning and management in a well defined and rigorous way. In particular, it jointly manages declarative and procedural aspects of a standards based verifiable guideline model, named GLM-CDS (GuideLine Model for Clinical Decision Support), and expresses reasoning tasks that exploit such a represented knowledge in order to formalize integrity constraints, business rules and complex inference rules.
Źródło:
Journal of Telecommunications and Information Technology; 2014, 1; 77-83
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving interpretability: combined use of LVQ and ARTMAP in decision support
Autorzy:
Kwok, H. F.
Giorgi, A.
Raffone, A.
Powiązania:
https://bibliotekanauki.pl/articles/309473.pdf
Data publikacji:
2005
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
learning vector quantization
ARTMAP
decision support systems
ischemic heart disease
Opis:
The learning vector quantization (LVQ) network was used to classify the ECG ST segment into different morphological categories. Due to the lack of data in the ST elevation categories, the classifier was only trained to identify different types of ST depressions (horizontal, upsloping and downsloping). The accuracies were 91%, 85% and 65% respectively for the training, validation and testing data respectively. Despite the low accuracy for the testing data, most of the mis-classifications were downsloping ST depression being classified as horizontal ST depression. We concluded that more data and more training are needed in order to train the LVQ to recognize other morphological types of ST deviation and to improve the accuracy.
Źródło:
Journal of Telecommunications and Information Technology; 2005, 4; 129-132
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie środowisk deklaratywnych do wspomagania decyzji dla problemów transportowych
Declarative approach to decision support for transportation problems
Autorzy:
Sitek, P.
Wikarek, J.
Powiązania:
https://bibliotekanauki.pl/articles/277040.pdf
Data publikacji:
2011
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
systemy wspomagania decyzji
środowiska deklaratywne
decision support systems
declarative environments
Opis:
W artykule przedstawiono podstawowe założenia systemu wspomagania decyzji opartego na środowiskach deklaratywnych. Środowiska deklaratywne w odróżnieniu od imperatywnych nie są tak rozpowszechnione. Umożliwiają bardziej elastyczne kształtowanie modeli decyzyjnych, nie wymagają budowy indywidualnych algorytmów, sa niewrażliwe na zmiany danych liczbowych, które mogą być pobierane za pomocą języka zapytań do bazy danych. Ilustracją prezentowanej koncepcji jest przedstawianie rozwiązania wieloetapowego zagadnienia transportowego.
The article presents the basic assumptions of the decision support system based on declarative environments. Declarative environments in contrast to the imperative ones are not as widespread. Allow more elastic shaping decision-making models, do not require the construction of the individual algorithms are insensitive to changes in the figures-which may be wound sampling using query language into the database. An illustration of the presented concept the solution of the multistage transportation problem has been presented.
Źródło:
Pomiary Automatyka Robotyka; 2011, 15, 2; 176-182
1427-9126
Pojawia się w:
Pomiary Automatyka Robotyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A universal model of knowledge conflict resolving using consensus methods in multi-agent decision support systems
Autorzy:
Bytniewski, Andrzej
Hernes, Marcin
Matouk, Kamal
Powiązania:
https://bibliotekanauki.pl/articles/431992.pdf
Data publikacji:
2013
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
decision support systems
knowledge conflicts
multi-agent systems
consensus methods
Opis:
The article presents a proposition of a universal model of knowledge conflict resolving using consensus methods, which can be used in a multi-agent decision support system. Knowledge conflicts often appear, when individual agents generate different solutions of the same problem. It is very difficult for the user – decision-maker to make a good decision because the analysis of solutions generated by agents is very time-consuming and the decision must be made quickly. Moreover, selecting one of the decisions on the basis of the experience of the decision-maker is very risky, because he/she could choose the worst solution. Consensus methods, however, allow to agree, on the basis of the solutions generated by agents, one solution, which is a compromise. As a consequence, reducing the time and decreasing the risk level of the decision taking process, to enable the functioning of the enterprise in more flexible.
Źródło:
Informatyka Ekonomiczna; 2013, 4(30); 82-90
1507-3858
Pojawia się w:
Informatyka Ekonomiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Implementacja procesów biznesowych w technologiach smart cities
Implementation of business processes in smart cities technology
Autorzy:
Orłowski, Cezary
Sitek, Tomasz
Ziółkowski, Artur
Kapłański, Paweł
Orłowski, Aleksander
Pokrzywnicki, Witold
Powiązania:
https://bibliotekanauki.pl/articles/1827560.pdf
Data publikacji:
2015
Wydawca:
Politechnika Gdańska
Tematy:
Smart Cities
business process modeling
decision support systems
knowledge management
Opis:
The goal of the paper is to present the results of studies concerning the development of a method of implementation of business processes in Smart Cities systems. The method has been developed during studies carried out within the building of a Smart Cities system for Gdańsk, and is based on basic development project management mechanisms (drawing from best practices, and in particular from the RUP methodology) and business-oriented development principles, where the role of business process modeling is crucial for the implementation of functionalities of IT systems.
Celem artykułu jest prezentacja wyników badań nad opracowaniem metody implementowania procesów biznesowych w systemach Smart Cities. Metoda została opracowana w trakcie badań prowadzonych w ramach budowy systemu Smart Cities dla Gdańska i bazuje na podstawowych mechanizmach zarządzania projektami wytwórczymi (czerpiąc z dobrych praktyk m.in. metodyki RUP) oraz zasadach biznesowo zorientowanego wytwarzania, gdzie rola modelowania procesów biznesowych jest kluczowa dla implementacji funkcjonalności systemów informatycznych.
Źródło:
Przedsiębiorstwo we współczesnej gospodarce - teoria i praktyka; 2015, 2-3, 13; 5-23
2084-6495
Pojawia się w:
Przedsiębiorstwo we współczesnej gospodarce - teoria i praktyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 62

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