Market’s static model for software development based on a transport problem with non-fixed time additions

Occupation: Senior Engineer
Affiliation: Joint-Stock Company Scientific and Production Association "Russian basic information technology"
Address: Moscow, Russian Federation

Aleksandr Perevozchikov

Occupation: Senior Research Scholar
Affiliation: Joint-Stock Company Scientific and Production Association "Russian basic information technology"
Address: Moscow, Russian Federation

Journal name

Ekonomika i matematicheskie metody

Edition

Volume 58 Issue 2

Pages

97-111

Abstract

The authors describe the formulation of the market’s discrete-continuous static model for software development based on a transport problem with non-fixed time additions. In contrast to the existing transport problem with fixed cost surcharges, it is proposed to formulate a minimax setting in time with times that may contain a part that proportionate to the volumes of appointments. Thus, the authors come up with the idea of a hybrid formulation of transport problem with fixed cost surcharges and classical transport problem in time. Such problems arise when the total volume of vehicles which have to be used repeatedly on each route is limited, plus the fixed addition that arises taking into account the delay in making logistics decisions. It is shown that the set a discrete-continuous problem can be approximated from above by the classical transport problem in time, which can also be obtained according to the scheme used in the work by Balinski. The authors also describe an exact algorithm of the branch-and-bound method, based on the geometric interpretation of the problem, which decomposes into subproblems on non-empty faces of the polyhedral set of feasible solutions, which areconvex programming problems that can be numerically solved by the subgradient method described in work by Polyak. The calculation of the lower estimates of the criterion proposed in the work is reduced to the same problems. It is shown that the function of the best values of the criterion on the edges is not sub- or supermodular, as a function of a subset of pairs of indices corresponding to the positive values of the transportation volumes, which makes it impossible to use supermodular programming methods. In connection with the latter, the authors also describe the optimal polynomial version of the branch-and-bound method, obtained by analogy with the solution of the multidimensional assignment problem, and a numerical example of its use. The authors describe interpretation of transport problem with non-fixed additions as a generalized assignment problem with non-fixed price discounts, taking into account the difference between the wholesale and retail prices. The authors come up with the ideaof the application for building digital platforms in the software development market for loading tasks for performers.

Keywords

transport problem with non-fixed time additions, approximation of the classical transport problem, geometric interpretation, branch-and-bound method, lower estimates of the criterion, ε-optimal version of the branch-and-bound method.

Received

04.05.2022

Publication date

18.06.2022

Number of characters

33257

Cite

GOST	Lesik I., Perevozchikov A. Market’s static model for software development based on a transport problem with non-fixed time additions // Ekonomika i matematicheskie metody – 2022. – V. 58. – Issue 2 C. 97-111 [Electronic resource]. URL: https://emm.jes.su/S042473880019969-4-1 (circulation date: 27.04.2024). DOI: 10.31857/S042473880019969-4
MLA	Lesik, Ilya, Perevozchikov, Aleksandr "Market’s static model for software development based on a transport problem with non-fixed time additions." Ekonomika i matematicheskie metody 58.2 (2022):97-111. DOI: 10.31857/S042473880019969-4
APA	Lesik I., Perevozchikov A. (2022). Market’s static model for software development based on a transport problem with non-fixed time additions. Ekonomika i matematicheskie metody 58(2), pp.97-111 DOI: 10.31857/S042473880019969-4

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