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Welcome to ORCS Lab
Welcome to the Laboratory of Operational Research and Complex Systems. Feel free to explore the website and get to know our projects and the people behind the algorithms.
ORCS Lab - Optimisation, Data Science and Complex Systems
Research
Research in the ORCS Lab focuses mainly on the development and application of optimisation methods to complex systems; on data science and statistical modeling; and on the applications of computational intelligence to large-scale power and energy systems.

Latest News

Paper accepted - Computers and Operations Research

We're very happy to announce that the paper:

Integrating Matheuristics and Metaheuristics for Timetabling

by George H.G. Fonseca, Haroldo G. Santos, and Eduardo G. Carrano, has been accepted for publication in the prestigious Computers and Operations Research (IF: 1.861). The paper reports on results that are part of George's Ph.D. work under the supervision of Prof. Carrano, and describes strategies that provide the best known results for 15 out of 17 benchmark instances of the High School Timetabling Problem.

You can read the abstract by clicking the "Read More" button below, or check the early access version of the paper here.

Read more: Paper accepted - Computers and Operations Research

Michel Gendreau at PPGEE-UFMG

Prof. Michel Gendreau from the Polytechnique Montréal and the University of Montréal will be presenting the main research topics developed by the Interuniversity Research Centre on Enterprise Networks, Logistics and Transportation (CIRRELT) this coming Tuesday (April 19) at 2p.m.. The presentation will be held at the Seminar Room 1010.

Michel Gendreau is an Associate Professor with the Department of Informatics and Operations Research at the University of Montréal, and a Professor with the Department of Mathematical and Industrial Engineering at the Polytechnique Montréal. His main research topics include network and transportation optimization, vehicle routing, metaheuristics, and applications to energy and communications systems.

All ORCS Lab students are invited to the talk.

André's Ph.D. presentation

André will be defending his Ph.D. thesis at 9 a.m. this Friday, April 8th 2016. The work will be presented at PPGEE's room 2418-A, School of Engineering, UFMG. The work was advised by Prof. Felipe Campelo

The thesis committee will be composed of the three ORCS Labs professors, as well as by Profs. Jaime Ramirez and Frederico Guimarães (Dept. Electrical Engineering, UFMG), Prof. Elizabeth Wanner (Dept. Computing, CEFET-MG), and Prof. Rodrigo Cardoso (Dept. Mathematics, CEFET-MG). All ORCS Lab graduate and undergraduate students are invited to the presentation.

ExpDE version 0.1 lauched

The first release version of R package ExpDE, a standardised modular implementation of Differential Evolution for the experimental investigation of operators, was released today. The package was also submitted to CRAN. This package is the result of work by Prof. Felipe Campelo and his M.Sc. student Moisés Botelho. Some initial results generated with this package were accepted for publication at this year's GECCO conference.


Update (2016-03-26): The package is now also available on CRAN: https://cran.r-project.org/web/packages/ExpDE/.

3 papers accepted for presentation @GECCO'2016

Very good Sunday news: we just got the message that three of our works (out of three submitted - 100% efficiency!!!) were accepted for presentation in the Genetic and Evolutionary Computation Conference (GECCO) 2016, to be held in Denver/CO in the coming July. Considering the high threshold of the GECCO conferences, this high rate of acceptance is quite encouraging!

The accepted manuscripts were:

Congratulations to all students involved in these papers. Keep up the great work!

Read more: 3 papers accepted for presentation @GECCO'2016

Paper Accepted: IET Generation, Transmission and Distribution Journal

We are proud to announce that the manuscript:

Multicriteria Transformer Asset Management with Maintenance and Planning Perspectives

co-written by Felipe Campelo, Lucas Batista, Ricardo Takahashi, Henrique Diniz and Eduardo Carrano has been accepted for publication in the prestigious IET Generation, Transmission and Distribution (IF: 1.353). This paper is the result of a very fruitful R&D cooperation with Brazilian energy juggernaut CEMIG.

Read more: Paper Accepted: IET Generation, Transmission and Distribution Journal

Eric's M.Sc. presentation

Prof. Eduardo Carrano's M.Sc. student Eric Willian will be presenting his M.Sc. work, Otimização da Programação Semafórica em Tempo Real com Base em Modelos Matemáticos on February 26th 2016, starting at 2 pm. The presentation is scheduled to happen in the Seminar Room T005, School of Engineering, UFMG.

Besides Prof. Eduardo Carrano, the evaluation committee is composed by:

  • Prof. Ricardo HC Takahashi (Dept. Mathematics, UFMG)
  • Prof. Paulo Eduardo Maciel de Almeida (Dept. Computing, CEFET-MG)
  • Prof. Elizabeth F. Wanner (Dept. Computing, CEFET-MG)

All ORCS Lab graduate and undergraduate students are invited to the presentation.

George's Qualification Exam

George will be presenting his Ph.D. qualification, titled Formulations And Algorithms For Timetabling on December 16th 2015, starting at 2:30 p.m.. The presentation is scheduled to happen in the Seminar Room T005, School of Engineering, UFMG.

Besides Prof. Eduardo Carrano (George's advisor), the qualification committee is composed by:

  • Prof. Ricardo HC Takahashi (Dept. Mathematics, UFMG)
  • Prof. Martín G Ravetti (Dept. Production Engineering, UFMG)
  • Prof. Haroldo G Santos (Dept. Computer Science, UFOP)
  • Prof. Luciana S Buriol(Institute of Informatics, UFRGS)

All ORCS Lab graduate and undergraduate students are invited to the presentation.

Part of George's work has been recently accepted for publication in the Journal of Scheduling.