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We describe a new approach based on tropical optimization techniques to solve the problem of rating alternatives from pairwise comparison data. The problem is formulated to approximate, in the log-Chebyshev sense, pairwise comparison…

Optimization and Control · Mathematics 2016-12-12 N. Krivulin

We show that several decision problems originating from max-plus or tropical convexity are equivalent to zero-sum two player game problems. In particular, we set up an equivalence between the external representation of tropical convex sets…

Combinatorics · Mathematics 2015-04-07 Marianne Akian , Stephane Gaubert , Alexander Guterman

This is a foundational paper in tropical linear algebra, which is linear algebra over the min-plus semiring. We introduce and compare three natural definitions of the rank of a matrix, called the Barvinok rank, the Kapranov rank and the…

Combinatorics · Mathematics 2007-05-23 M. Develin , F. Santos , B. Sturmfels

We discuss the tropical analogues of several basic questions of convex duality. In particular, the polar of a tropical polyhedral cone represents the set of linear inequalities that its elements satisfy. We characterize the extreme rays of…

Combinatorics · Mathematics 2011-06-20 Xavier Allamigeon , Stephane Gaubert , Ricardo D. Katz

We present tropical games, a generalization of combinatorial min-max games based on tropical algebras. Our model breaks the traditional symmetry of rational zero-sum games where players have exactly opposed goals (min vs. max), is more…

Artificial Intelligence · Computer Science 2015-03-17 Jean-Vincent Loddo , Luca Saiu

A polynomial complexity algorithm is designed which tests whether a point belongs to a given tropical linear variety.

Symbolic Computation · Computer Science 2018-11-08 Dima Grigoriev

An unconstrained optimization problem is formulated in terms of tropical mathematics to minimize a functional that is defined on a vector set by a matrix and calculated through multiplicative conjugate transposition. For some particular…

Optimization and Control · Mathematics 2015-01-30 Nikolai Krivulin

We define a formal framework for the study of algebras of type Max-plus, Min-Plus, tropical algebras, and more generally algebras over a commutative idempotent semi-field. This work is motivated by the increasingly diversified use of these…

Commutative Algebra · Mathematics 2008-07-22 Dominique Castella

We consider multidimensional optimization problems that are formulated in the framework of tropical mathematics to minimize functions defined on vectors over a tropical semifield (a semiring with idempotent addition and invertible…

Optimization and Control · Mathematics 2018-05-29 Nikolai Krivulin

We apply methods and techniques of tropical optimization to develop a new theoretical and computational framework for the implementation of the Analytic Hierarchy Process in multi-criteria problems of rating alternatives from pairwise…

Optimization and Control · Mathematics 2018-02-01 N. Krivulin , S. Sergeev

We consider optimization problems that are formulated and solved in the framework of tropical mathematics. The problems consist in minimizing or maximizing functionals defined on vectors of finite-dimensional semimodules over idempotent…

Optimization and Control · Mathematics 2014-08-05 Nikolai Krivulin

In this note, we propose a novel technique to reduce the algorithmic complexity of neural network training by using matrices of tropical real numbers instead of matrices of real numbers. Since the tropical arithmetics replaces…

Computational Complexity · Computer Science 2021-01-05 Ozgur Ceyhan

Optimization problems are considered in the framework of tropical algebra to minimize and maximize a nonlinear objective function defined on vectors over an idempotent semifield, and calculated using multiplicative conjugate transposition.…

Optimization and Control · Mathematics 2017-06-05 Nikolai Krivulin

We give an overview of recently implemented polymake features for computations in tropical geometry. The main focus is on explicit examples rather than technical explanations. Our computations employ tropical hypersurfaces, moduli of…

Algebraic Geometry · Mathematics 2018-10-30 Simon Hampe , Michael Joswig

In a previous work, we gave a construction of (not necessarily realizable) oriented matroids from a triangulation of a product of two simplices. In this follow-up paper, we use a variant of Viro's patchworking to derive a topological…

Combinatorics · Mathematics 2020-10-26 Marcel Celaya , Georg Loho , Chi Ho Yuen

We investigate a canonical extension of a conventional combinatorial notion of reduced divisors to a notion of tropical projections, which can be defined as the unique minimizers of the so-called $B$-pseudonorms with respect to compact…

Combinatorics · Mathematics 2018-12-04 Ye Luo

We study representations of tropical linear spaces as intersections of tropical hyperplanes of circuits. For several classes of matroids, we describe minimal tropical bases. We also show that every realizable tropical linear space has a…

Combinatorics · Mathematics 2007-05-23 Josephine Yu , Debbie S. Yuster

We introduce a generalization of tropical polyhedra able to express both strict and non-strict inequalities. Such inequalities are handled by means of a semiring of germs (encoding infinitesimal perturbations). We develop a tropical…

Combinatorics · Mathematics 2015-01-05 Xavier Allamigeon , Uli Fahrenberg , Stéphane Gaubert , Ricardo D. Katz , Axel Legay

We exhibit a class of classical or tropical posynomial systems which can be solved by reduction to linear or convex programming problems. This relies on a notion of colorful vectors with respect to a collection of Newton polytopes. This…

Optimization and Control · Mathematics 2020-05-15 Marianne Akian , Xavier Allamigeon , Marin Boyet , Stéphane Gaubert

We consider multidimensional optimization problems in the framework of tropical mathematics. The problems are formulated to minimize a nonlinear objective function that is defined on vectors over an idempotent semifield and calculated by…

Optimization and Control · Mathematics 2017-09-18 Nikolai Krivulin