Research output: Contribution to journal › Article › peer-review
A Study of the Threshold Stability of the Bilevel Problem of Facility Location and Discriminatory Pricing. / Vodyan, M. E.; Panin, A. A.; Plyasunov, A. V.
In: Journal of Applied and Industrial Mathematics, Vol. 18, No. 3, 06.2024, p. 558-574.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - A Study of the Threshold Stability of the Bilevel Problem of Facility Location and Discriminatory Pricing
AU - Vodyan, M. E.
AU - Panin, A. A.
AU - Plyasunov, A. V.
N1 - This work was financially supported by the Russian Science Foundation, project no. 23-201321-201300424.
PY - 2024/6
Y1 - 2024/6
N2 - The problem of threshold stability for a bilevel problem with a median type of facilitylocation and discriminatory pricing is considered. When solving such a problem, it is necessary tofind the threshold stability radius and a semifeasible solution of the original bilevel problem suchthat the leader’s revenue is not less than a predetermined value (threshold) for any deviation ofbudgets that does not exceed the threshold stability radius and which preserves its semifeasibility.Thus, the threshold stability radius determines the limit of disturbances of consumer budgets withwhich these conditions are satisfied. Two approximate algorithms for solving the threshold stability problem based onthe heuristic of descent with alternating neighborhoods are developed. These algorithms are basedon finding a good approximate location of facilities as well as on calculating the optimal set ofprices for the found location of facilities. The algorithms differ in the way they compare variouslocations of facilities; this ultimately leads to different estimates of threshold stability radius. Anumerical experiment has shown the efficiency of the chosen approach both in terms of therunning time of the algorithms and the quality of the solutions obtained.
AB - The problem of threshold stability for a bilevel problem with a median type of facilitylocation and discriminatory pricing is considered. When solving such a problem, it is necessary tofind the threshold stability radius and a semifeasible solution of the original bilevel problem suchthat the leader’s revenue is not less than a predetermined value (threshold) for any deviation ofbudgets that does not exceed the threshold stability radius and which preserves its semifeasibility.Thus, the threshold stability radius determines the limit of disturbances of consumer budgets withwhich these conditions are satisfied. Two approximate algorithms for solving the threshold stability problem based onthe heuristic of descent with alternating neighborhoods are developed. These algorithms are basedon finding a good approximate location of facilities as well as on calculating the optimal set ofprices for the found location of facilities. The algorithms differ in the way they compare variouslocations of facilities; this ultimately leads to different estimates of threshold stability radius. Anumerical experiment has shown the efficiency of the chosen approach both in terms of therunning time of the algorithms and the quality of the solutions obtained.
KW - bilevel optimization
KW - discriminatory pricing
KW - facility location
KW - threshold stability problem
KW - threshold stability radius
KW - variable neighborhood descent
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85211228158&origin=inward&txGid=702effb6d3360d3981f8c229081d2a1f
UR - https://www.mendeley.com/catalogue/2b937b34-b32e-358a-8d6b-ba21a3b13b71/
U2 - 10.1134/S1990478924030165
DO - 10.1134/S1990478924030165
M3 - Article
VL - 18
SP - 558
EP - 574
JO - Journal of Applied and Industrial Mathematics
JF - Journal of Applied and Industrial Mathematics
SN - 1990-4789
IS - 3
ER -
ID: 61285776