A Note on Relaxations of the Choice Network Revenue Management Dynamic Program

Kunnumkal, S and Talluri, K (2016) A Note on Relaxations of the Choice Network Revenue Management Dynamic Program. Operations Research, 64 (1). pp. 158-166.

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Abstract

In recent years, several approximation methods have been proposed for the choice network revenue management problem. These approximation methods are proposed because the dynamic programming formulation of the choice network revenue management problem is intractable even for moderately sized instances. In this paper, we consider three approximation methods that obtain upper bounds on the value function, namely, the choice deterministic linear program (CDLP), the affine approximation (AF), and the piecewise-linear approximation (PL). It is known that the piecewise-linear approximation bound is tighter than the affine bound, which in turn is tighter than CDLP. In this paper, we prove bounds on how much the affine and piecewise-linear approximations can tighten CDLP. We show (i) the gap between the AF and CDLP bounds is at most a factor of 1+1/(miniri1), where ri1>0 are the resource capacities, and (ii) the gap between the piecewise-linear and CDLP bounds is within a factor of 2. Moreover, we show that these gaps are essentially tight. Our results hold for any discrete-choice model and do not involve any asymptotic scaling. Our results are surprising because calculating the AF bound is NP-hard and CDLP is tractable for a single-segment multinomial logit model; our result implies that if a firm has all resource capacities of 100, the gap between the two bounds, however, is at most 1.01.

Affiliation: Indian School of Business
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Kunnumkal, S
UNSPECIFIED
Item Type: Article
Uncontrolled Keywords: network revenue management; discrete choice models; dynamic programming
Subjects: Financial Management
Finance
Depositing User: Veeramani R
Date Deposited: 04 Oct 2018 16:43
Last Modified: 04 Oct 2018 16:43
URI: http://eprints.exchange.isb.edu/id/eprint/596
Publisher URL: https://doi.org/10.1287/opre.2015.1453
Publisher OA policy: http://www.sherpa.ac.uk/romeo/issn/0030-364X/
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