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Wyświetlanie 1-15 z 98
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:
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:
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:
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:
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:
A new multiple objective dynamic routing method using implied costs
Autorzy:
Craveirinha, J.
Martins, L.
Antunes, C.H.
Climaco, J.N.
Powiązania:
https://bibliotekanauki.pl/articles/307698.pdf
Data publikacji:
2003
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
dynamic routing
multicriteria decision support systems
traffic management
Opis:
There are advantages in considering the routing problem in integrated communication networks as a multiobjective shortest path problem, having in mind to grasp eventual conflicts and trade-offs among distinct objectives and quality of services (QoS) constraints. On the other hand the utilisation of dynamic routing methods in various types of networks is well known to have significant impact on network performance and cost, namely in overload and failure conditions. This paper presents the detailed formulation of a proposal of a multiple objective dynamic routing method (MODR) of periodic state dependent routing type, enabling to represent distinct QoS related metrics and requirements in a consistent manner. The MODR method present formulation is based on a multiple objective shortest path model with constraints and is prepared to use implied costs as one of the metrics. Alternative paths tor each traffic flow are changed as a function of periodic updates of certain QoS related parameters estimated from real time measurements on the routes and trunks of the network. Such paths are computed by a specialised and efficient variant of a bi-objective shortest path constrained algorithm, developed for the MODR, enabling to incorporate flexible requirements on the QoS metrics. The architecture of the routing system is discussed together with the features of its main modules. An illustrative example of application of the MODR path calculation module to a circuit-switched type network using blocking probability and implied cost as metrics, is also presented, considering different overload conditions.
Źródło:
Journal of Telecommunications and Information Technology; 2003, 3; 50-59
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
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:
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:
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:
Towards improving optimised ship weather routing
Autorzy:
Vettor, Roberto
Szlapczynska, Joanna
Szlapczynski, Rafal
Tycholiz, Wojciech
Soares, Carlos Guedes
Powiązania:
https://bibliotekanauki.pl/articles/260307.pdf
Data publikacji:
2020
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
weather routing
Decision Support Systems
uncertainty handling
ensemble forecast
Opis:
The aim of the paper is to outline a project focussing on the development of a new type of ship weather routing solution with improved uncertainty handling, through better estimation of ship performance and responses to sea conditions. Ensemble forecasting is considered to take into account the uncertainty levels that are typical of operations in a stochastic environment. Increased accuracy of weather prediction is achieved through the assimilation of real-time data, measured by an on-board monitoring system. The proposed system will allow smooth integration of short-term Decision Support Systems for ship handling in dangerous or peculiar situations with long-term Decision Support Systems for weather routing. An appropriate user interface is also a critical part of the project and it will be implemented in a commercial Electronic Nautical Chart environment. A prototype of the full system will be installed and tested on a commercial vessel in regular operations and under real environmental conditions.
Źródło:
Polish Maritime Research; 2020, 1; 60-69
1233-2585
Pojawia się w:
Polish Maritime Research
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:
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
Tytuł:
Decision Support Systems for integrated control of late blight
Autorzy:
Schepers, Huub T.A.M.
Powiązania:
https://bibliotekanauki.pl/articles/2198946.pdf
Data publikacji:
2004-12-20
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
Decision Support Systems
integrated control
late blight
Phytophthora infestans
potato
Opis:
All definitions for integrated control agree that maximum emphasis should be put on prevention by using resistant cultivars and cultural measures. Moreover, the use of plant protection products should be limited to the essential minimum using Decision Support Systems (DSSs) that integrate and organise all relevant information. Computer-based DSSs that require weather information and regular late blight scouting inputs have been developed and validated in a number of European countries. In the frame of the EU concerted action “European network for development of an integrated control strategy of potato late blight (EU.NET.ICP)” several DSSs were validated in 1999-2001. The overall conclusion was that in most cases the use of DSSs combined a good disease control with a reduction of fungicide input. The DSSs can be used as a PC-version but more and more, parts of information are delivered to users by phone, fax, e-mail, SMS and websites on the Internet. An important task for the near future is to update the DSSs with information on the epidemiology of the new aggressive population of Phytophthora infestans. Issues such as (1) the influence of temperature and relative humidity on the infection process, (2) the role of primary inoculum sources (seed, oospores, volunteers, dumps), (3) the role of secondary inoculum sources (distance, severity), (4) control of early blight and (5) resistance ratings for foliar and tuber blight have to be addressed in order to be able to formulate a robust control strategy that effectively controls late (and early) blight with a minimum input of fungicides.
Źródło:
Plant Breeding and Seed Science; 2004, 50; 57-61
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Project prioritizing in a manufacturing – service enterprise with application of the fuzzy logic
Autorzy:
Marek-Kolodziej, Katarzyna
Lapunka, Iwona
Powiązania:
https://bibliotekanauki.pl/articles/1841397.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
priority assignment
project selection
fuzzy systems
fuzzy logic
decision theory
decision support systems
Opis:
The article includes presentation of fuzzy numbers application in projects prioritizing at manufacturing and service providing enterprises. The following criteria have been applied as a basis for projects prioritizing analysis in enterprise: NPV index, linked with the enterprise strategic aims, project execution cost, project time, project scope and risk. As the criteria selected were of measurable and non-measurable character in projects prioritizing evaluation, the fuzzy decision making system has been developed, in which a linguistic value has been defined for each criterion of projects prioritizing. Knowledge base has been developed afterwards, presenting cause-effect dependencies in projects prioritizing. Knowledge base consisted of conditional rules. Fuzzy system of decision making in project prioritizing has been developed in MATLAB application. The decision making fuzzy system established, constitutes an efficient tool for projects prioritizing, on the basis of criteria given and concluding system developed. The obtained analysis results provide basis for the decision making parties to set the projects execution sequences.
Źródło:
Management and Production Engineering Review; 2020, 11, 4; 81-91
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 98

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