Discrete convex analysis

K Murota - Mathematical Programming, 1998 - Springer
A theory of “discrete convex analysis” is developed for integer-valued functions defined on
integer lattice points. The theory parallels the ordinary convex analysis, covering discrete …

Discrete convex analysis: A tool for economics and game theory

K Murota - arXiv preprint arXiv:2212.03598, 2022 - arxiv.org
This paper presents discrete convex analysis as a tool for economics and game theory.
Discrete convex analysis is a new framework of discrete mathematics and optimization …

Faster discrete convex function minimization with predictions: the M-convex case

T Oki, S Sakaue - Advances in Neural Information …, 2023 - proceedings.neurips.cc
Recent years have seen a growing interest in accelerating optimization algorithms with
machine-learned predictions. Sakaue and Oki (NeurIPS 2022) have developed a general …

Simpler exchange axioms for M-concave functions on generalized polymatroids

K Murota, A Shioura - Japan Journal of Industrial and Applied Mathematics, 2018 - Springer
Abstract M^ ♮ M♮-concave functions form a class of discrete concave functions in discrete
convex analysis, and are defined by a certain exchange axiom. We show in this paper that …

Decreasing minimization on M-convex sets: algorithms and applications

A Frank, K Murota - Mathematical Programming, 2022 - Springer
This paper is concerned with algorithms and applications of decreasing minimization on an
M-convex set, which is the set of integral elements of an integral base-polyhedron. Based on …

Separable convex optimization with nested lower and upper constraints

T Vidal, D Gribel, P Jaillet - INFORMS Journal on …, 2019 - pubsonline.informs.org
We study a convex resource allocation problem in which lower and upper bounds are
imposed on partial sums of allocations. This model is linked to a large range of applications …

Scaling, proximity, and optimization of integrally convex functions

S Moriguchi, K Murota, A Tamura, F Tardella - Mathematical Programming, 2019 - Springer
In discrete convex analysis, the scaling and proximity properties for the class of L^ ♮♮-
convex functions were established more than a decade ago and have been used to design …

On a reduction for a class of resource allocation problems

MHH Schoot Uiterkamp… - INFORMS Journal …, 2022 - pubsonline.informs.org
In the resource allocation problem (RAP), the goal is to divide a given amount of a resource
over a set of activities while minimizing the cost of this allocation and possibly satisfying …

Discrete decreasing minimization, Part II: Views from discrete convex analysis

A Frank, K Murota - arXiv preprint arXiv:1808.08477, 2018 - arxiv.org
We continue to consider the discrete decreasing minimization problem on an integral base-
polyhedron treated in Part I. The problem is to find a lexicographically minimal integral …

No-Regret M-Concave Function Maximization: Stochastic Bandit Algorithms and NP-Hardness of Adversarial Full-Information Setting

T Oki, S Sakaue - arXiv preprint arXiv:2405.12439, 2024 - arxiv.org
M ${}^{\natural} $-concave functions, aka gross substitute valuation functions, play a
fundamental role in many fields, including discrete mathematics and economics. In practice …