Results 41 to 50 of about 385 (87)

Electric Vehicle Routing Problem: A Review of Recent Approaches and Algorithms

open access: yesStudia Universitatis Babes-Bolyai: Series Informatica
With the rapid advancement of new energy vehicles, electric vehicles (EVs) have become integral to modern transportation systems. Compared with traditional fuel vehicles, EVs are limited by their limited battery capacity and require reasonable charging ...
Yingkai XU
doaj   +1 more source

Unbounded convex sets for non-convex mixed-integer quadratic programming [PDF]

open access: yes, 2014
This paper introduces a fundamental family of unbounded convex sets that arises in the context of non-convex mixed-integer quadratic programming.
Burer, Samuel, Letchford, Adam
core  

The summed start-up costs in a unit commitment problem

open access: yesEURO Journal on Computational Optimization, 2017
We consider the sum of the incurred start-up costs of a single unit in a Unit Commitment problem. Our major result is a correspondence between the facets of its epigraph and some binary trees for concave start-up cost functions CU, which is bijective if ...
René Brandenberg   +2 more
doaj  

Convex approximations for a class of mixed-integer recourse models [PDF]

open access: yes
We consider mixed-integer recourse (MIR) models with a single recourse constraint.We relate the secondstage value function of such problems to the expected simple integer recourse (SIR) shortage function.
Vlerk, Maarten H. van der
core   +1 more source

Optimization as an analysis tool for human complex decision making [PDF]

open access: yes, 2011
We present a problem class of mixed-integer nonlinear programs (MINLPs) with nonconvex continuous relaxations which stem from economic test scenarios that are used in the analysis of human complex problem solving.
Barth, Dr Carola M.   +4 more
core  

Optimizing electricity distribution using two-stage integer recourse models [PDF]

open access: yes
We consider two planning problems faced by an electricity distributor. Electricity can be ob-tained both from power plants and small generators such as hospitals and greenhouses, whereas the future demand for electricity is uncertain.
Klein Haneveld, W.K.   +1 more
core   +1 more source

Approximation of corner polyhedra with families of intersection cuts

open access: yes, 2017
We study the problem of approximating the corner polyhedron using intersection cuts derived from families of lattice-free sets in $\mathbb{R}^n$. In particular, we look at the problem of characterizing families that approximate the corner polyhedron up ...
A Basu   +12 more
core   +1 more source

Integrated chance constraints in an ALM model for pension funds [PDF]

open access: yes
We discuss integrated chance constraints in their role of short-term risk constraints in a strategic ALM model for Dutch pension funds. The problem is set up as a multistage recourse model, with special attention for modeling the guidelines proposed by ...
Vlerk, Maarten H. van der
core   +1 more source

Towards optimizing the deployment of optical access networks

open access: yesEURO Journal on Computational Optimization, 2014
In this paper we study the cost-optimal deployment of optical access networks considering variants of the problem such as fiber to the home (FTTH), fiber to the building (FTTB), fiber to the curb (FTTC), or fiber to the neighborhood (FTTN).
Martin Grötschel   +2 more
doaj  

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