A Prize Collecting problem applied to a Real Milk Collection problem in Chile

Elizabeth Montero, Dario Canales, GERMAN ENRIQUE PAREDES BELMAR, Raul Soto

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this work, a real world milk collection problem is introduced. A milk processing company, located in south of Chile, needs to collect milk to elaborate their products. To this work, the company has a heterogeneous truck fleet. The farms are scattered in a large geographical area. In this problem, the company buys only the minimum quantity of milk required to its daily operation. Exceeding this minimum quantity of milk generates a cost of over demand. The objective is to find efficient collection routes, satisfying the minimum required quantity and minimizing the over demand and transportation costs. To solve this version of the prize collection problem we propose an integer programming model to solve simpler instances and a GRASP metaheuristic to solve more complex instances in reduced time. Real world problem instances can consider up to 500 farmers. We tested our approaches using small real world cases and possible expansion scenarios. We concluded about the key components of our approaches and their capabilities to solve the problem at hand.

Original languageEnglish
Title of host publication2019 IEEE Congress on Evolutionary Computation, CEC 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1415-1422
Number of pages8
ISBN (Electronic)9781728121536
DOIs
StatePublished - Jun 2019
Externally publishedYes
Event2019 IEEE Congress on Evolutionary Computation, CEC 2019 - Wellington, New Zealand
Duration: 10 Jun 201913 Jun 2019

Publication series

Name2019 IEEE Congress on Evolutionary Computation, CEC 2019 - Proceedings

Conference

Conference2019 IEEE Congress on Evolutionary Computation, CEC 2019
CountryNew Zealand
CityWellington
Period10/06/1913/06/19

Keywords

  • Milk collection
  • prize collecting
  • vehicle routing problem

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