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Economy, finances, management: Topical issues of science and practical activity

space SCIENTIFIC JOURNALS OF VINNITSA NATIONAL AGRARIAN UNIVERSITY

Issue №: 8 (48)

Published: 2019.09.17
DOI: 10.37128/2411-4413-2019-8


Description:
The magazine deals with the problems of the agricultural sector of the economy in the context of integration and processes of globalization. Attention is paid to the issues of development of digital economy, rural territories, technologies of enterprise management and organization of accounting, problems of legal support of economic processes, market tendencies of development of various branches of economy. Particular attention is paid to green tourism as a promising segment of the national economy.

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AUTOMATED INFORMATION SYSTEM FOR APPROXIMATION OF ECONOMIC INDICATORS

DOI: 10.37128/2411-4413-2019-8-4
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DZIS Victor, Candidate of Technical Sciences, Associate Professor, Department of Mathematics, 

Physics and Computer Technologies of Vinnytsia National Agrarian University (21008, 21008, м. 

Вінниця, 3, Soniachna Str.e-mail: dzisvg@gmail.com)

Annotation

The article describes an automated information  system for the approximation of economic 

indicators. Verification of models and determination of their parameters is performed automatically 

without user intervention. The mathematical model is based on a linear combination of a function with 

weights.  At the first stage, a library of mathematical functions, a system of normal equations of the least 

squares method, blocks for determining unknown parameters of mathematical dependencies and their 

main statistical characteristics: correlation coefficient Y Yrˆ,, sum of squares of deviations of tabular values 

of indicators from estimated by regression equation, absolute the forecast bias indicator, the average 

absolute forecast error, the root mean square error, the average absolute error; average relative error in 

percent; Teil’s mismatch coefficient .

At the second stage, unknown parameters for all equations are determined, the value of the 

dependent variable, the value of the correlation coefficient and the average relative error are estimated 

for each equation. Only those functions for which and are selected for further processing. For the selected 

functions, by the values of: ,ˆ, Y Yr, SEE , ME , MAE, MSE, MPE , MAPETK, the method of expert 

estimates determines the ranks of each function, evaluates the coefficient of concordance, builds a matrix 

of advantages. The ranks determine the normalized weights for the composite functions of the model. At 

the third stage, a mathematical model is formed, its parameters and statistical characteristics are 

estimated a graph of the selection of parameters and a graph of absolute deviations are displayed. In the 

case of changes in input parameters (variable values, number of indicators, etc.), the information system 

automatically updates the model.

Keywords: automated information system, approximation, linear combination of functions, sampling, correlation coefficient, approximation error, Tayla coefficient, matrix of preferences, weight coefficients.

List of references

1. Prokhorov, S.A., Firsov, V.A.,  Krivosheev, O.A. &  dr. (1995).  Avtomatizirovannye sistemy dlya 

nauchnykh issledovaniy [Automated systems for scientific research]. Samara: NPTS «Aviator» [in Russian].

2. Greshilov,  A.A., Skakun,  V.A., Skakun,  A.A.  (1997). Matematicheskie metody postroeniya 

prognozov [Mathematical methods for forecasting]. Moscow: Radio i svyaz' [in Russian].

3.Greshilov,  A.A. (2006). Matematicheskie metody prinyatiya resheniy  [Mathematical methods of 

decision making]. Moscow: MGTU im. N.E. Baumana [in Russian].

4.  Toshyns'kyy, V.I., Lysachenko, I.H., Zhadan, Yu.V. (2012). Avtomatyzovana systema 

naukovykh doslidzhen' v protsesi katalitychnoho okyslennya oksydu vuhletsyu [Automated system of 

scientific researches in the process of catalytic oxidation of carbon oxide].  Vcheni zapysky KHIU  –

Uchenye zapiski XIU, Vyp. 13, 282-284 [in Ukrainian].

5.  Herasymov,  B.M.,  Lokazyuk,  V.M.,  Oksiyuk, O.H.,  Pomorova,  O.V. (2007).  Intelektual'ni 

systemy pidtrymky pryynyattya rishen'  [Intelligent decision support systems].  Kyiv:  Vydavnytstvo 

Yevropeys'koho universytetu [in Ukrainian].

6. Dubakov,  A.A.  (2011).  Proektirovanie informatsionnykh sistem: Uchebnoe posobie  [Designing 

Information Systems: Tutorial] . Tomsk: Izd-vo Tomskogo politekhnicheskogo universiteta [in Russian].

7. Orlov,  A.I.  (1996).  Ekspertnye otsenki  [Expert assessments].  Zavodskaya laboratoriya  -  Plant 

Laboratory, 62 (1), 54-60.

8. Orlov,  A.I. (2004).  Teoriya prinyatiya resheniy. Uchebnoe posobie [Decision making theory. 

Tutorial]. Moscow: Izdatel'stvo «Mart» [in Russian]. 

All journal issues

About journal

Topics of the journal:

051 Economics

071 Accounting and taxation

072 Finance, banking and insurance

073 Management

075 Marketing

076 Business, trade and exchange activities

241 Hotel, restaurant and catering 

281 Public administration

 

Key information:
ISSN (print): 2411-4413
DOI: 10.37128

The journal “Economy, finances, management: Topical issues of science and practice” is included in the "List of Scientific Professional Editions of Ukraine". 

The scientific edition is assigned the Category "Б" in the field of economics in specialties 051, 071, 072, 073, 075, 076, 241, 281

(Order of the Ministry of Education and Science of Ukraine No. 249, March 17, 2020).

The journal “Economy, finances, management: Topical issues of science and practice” has a Digital Object Identifier (DOI)

The journal “Economy, finances, management: Topical issues of science and practice” is indexed in such database as Index Copernicus Value (https://journals.indexcopernicus.com/search/form)

 

The editorial board of the journal is guided by the principles of scientific, objectivity, professionalism, informational support of the most significant innovative researches, observance of standards of publishing ethics.

The purpose of the journal "Economics, finances, management: Topical issues of science and practical activity» is the coverage of leading scientific ideas in the economic, financial and management activities of the sectors of the national economy and the involvement of representatives of the domestic and foreign scientific professional community.

 

Objectives of the journal:

  • publication of research findings on innovation in the economy, financial and management spheres, innovation of production processes;
  • expanding partnerships with international scientific publishing organizations;
  • enhancing the culture of reviewing and annotating published material;
  • adherence to editorial ethics.

 

Article publishing is a paid service. Cost for printing in professional publications in accordance with the Decree of the Cabinet of Ministers of Ukraine of August 27, 2010 No. 796 "On approval of the list of paid services that can be provided by state educational institutions, other institutions of the educational system belonging to state and communal ownership" and the order Rector of the Higher Education University Mazura VA dated March 14, 2018 No. 93 “On setting the cost of printing in professional editions of the University”.

The cost of printing one page in professional editions of the university is 60 UAH.

An additional copy of the magazine with the mailing list costs 450 UAH.

Recipient: Vinnytsia National Agrarian University MFO 820172 Current account No. 31256282102055 Code 00497236 Bank State Treasury Service of Ukraine, Kyiv. VAT payer code 004972302286. Registration number 100271744. Purpose of payment: for printing an article in the journal: ”Economy, finances, management: Topical issues of science and practical activity "

History of journal:

It was founded in 1997 under the name "Bulletin of the Vinnytsia State Agricultural Institute". In 2010-2014 he was published under the title “Collection of scientific works of Vinnitsa National Agrarian University”.

From 2015 ”Economy, finances, management: Topical issues of science and practical activity” (Certificate of State Registration of Mass Media No. 21154-10954 of PR as of December 31, 2014)

According to the decision of National Council of Television and Radio Broadcasting of Ukraine from 25.04.2024 No. 1337 the scientific journal «Economy, finances, management: topical issues of science and practical activity» has the ID of the Media R30-05171.