Best paper award - ENIAC 2017

We're very pleased to report that our paper "A Preference-guided Multiobjective Evolutionary Algorithm based on Decomposition", by Daniel de Souza, Fillipe Goulart, Lucas Batista and Felipe Campelo was selected as one of the top 3 papers at ENIAC2017 - Encontro Nacional de Inteligência Artificial e Computacional (National Meeting on Artificial and Computational Intelligence), currently happening in Uberlândia/MG, Brazil. Daniel presented the paper, which was written as part of his M.Sc. work, this last afternoon. Congratulations!

You can read the abstract by clicking "Read More" below.

Read more: Best paper award - ENIAC 2017

Fernanda's Qualification Exam

We're happy to invite everyone to Fernanda Takahashi's Ph.D. qualification exam. Her work Sample Size Estimation For Power And Accuracy In The Experimental Comparison of Metaheuristics will be presented on May 31st 2017 2 p.m., at the Seminar Room T005. Besides Fernanda's advisor, ORCS Lab's Prof. Felipe Campelo, the qualification committee will be composed by:

  • Prof. Thiago Noronha, DCC-UFMG
  • Prof. Luiz Duczmal, Dep. Statistics - UFMG
  • Prof. Helio Barbosa, LNCC

Click below for the abstract.

Update: click here for pictures!

Read more: Fernanda's Qualification Exam

April Defense Madness

In the next two weeks we'll be having four (FOUR!) defenses by ORCS Lab's students! All students are invited as usual, and the academic community in general is always very welcome as well!

Check below for details.

Read more: April Defense Madness

MOEADr package 0.2.1 released

The first release version of R package MOEADr, a standardised modular implementation of Multiobjective Evolutionary Algorithms based on Decomposition (MOEA/D), was released today. Version 0.2.1 contains several variants of decomposition strategies, aggregation functions, variation operators, neighborhood assignment rules, update strategies and more. It also integrates seamlessly with package smoof, which provides standard implementations of several benchmark sets for multiobjective optimization.

This package is the result of a joint project between ORCS Lab's Felipe Campelo and Lucas Batista and University of Tsukuba's Claus Aranha, and is part of an upcoming paper on component-wise modeling of MOEA/Ds (stay tuned!).

You can install the package from the R console by typing

install.packages("MOEADr")

Accepted papers - Update

It's been a while since we posted updates here, so today we have a two-hit combo:

  • The PhD work of Alexandre Pimenta has just been accepted for publication at Springer's Computational Economics (IF: 0.691), under the title An Automated Investing Method for Stock Market Based on Multiobjective Genetic Programming. The work is authored by Alexandre Pimenta, Ciniro Nametala, Frederico G. Guimarães, and Eduardo Carrano;

  • George Fonseca is at it again, having just landed a paper in the European Journal of Operational Research (IF: 2.679). His work Integer Programming Techniques for Educational Timetabling was authored by himself, Haroldo Santos, Eduardo Carrano and Thomas Stidsen, and is one of the outcomes of George's time working under Prof. Stidsen at the Technical University of Denmark.

Click below to access both abstracts.

Read more: Accepted papers - Update

Ciniro's M.Sc. Thesis Presentation

We're happy to invite everyone to Ciniro's presentation of his dissertation,

Construção de um Robô Investidor baseado em Redes Neurais Artificiais e Preditores Econométricos.

on February 20th 2017, 9:30a.m., at EEUFMG's Seminar Room III. Besides Ciniro's advisor, ORCS Lab's Prof. Eduardo Carrano, the dissertation committee will be composed by:

    • Prof. Felipe Campelo (ORCS Lab, Dept. Electrical Engineering, UFMG)
    • Prof. Adriano César Machado Pereira (Dept. Computer Science, UFMG)
    • Prof. Rodrigo Tomás Nogueira Cardoso (Dept. Physics and Mathematics, CEFET-MG)

Click below to read the abstract [UPDATE: and for a picture.]

Read more: Ciniro's M.Sc. Thesis Presentation

Papers accepted: two-hit combo!

ORCS Lab's Prof. Eduardo Carrano has received excellent news today, with two of his papers being accepted for publication on the same day!

The first one, accepted for publication in the IET Generation, Transmission & Distribution journal (IF: 1.576) is titled Robust Coordination of Directional Overcurrent Relays Using a Matheuristic Algorithm, by Mateus Costa, Rodney Saldanha, Martín Ravetti and Eduardo Carrano, is a result of Mateus' Ph.D. work (under prof. Carrano) in collaboration with UFMG professors Saldanha (Dept. Electrical Engineering) and Ravetti (Dept. Production Engineering). 

The second, to appear in the Transactions of the Institute of Measurement and Control (IF: 0.820) is the manuscript Fixed Time Traffic Signal Optimization Using a Multiobjective Evolutionary Algorithm and Microsimulation of Urban Networks, by Breno Costa, Samara Leal and Paulo Almeida (all from CEFET-MG) together with Eduardo Carrano.

You can find the abstracts by clicking the "Read More" button below.

Read more: Papers accepted: two-hit combo!

André's Qualification Exam

André Maravilha will be presenting his Ph.D. qualification, titled Heurísticas Baseadas Em Modelos Para Problemas De Otimização Combinatória on September 22th 2016, starting at 9:00 a.m.. Besides Profs. Felipe Campelo and Eduardo Carrano (André's advisors), the qualification committee is composed by:

  • Prof. Geraldo Robson Mateus (Dept. Computer Science, UFMG)
  • Prof. Martín Ravetti (Dept. Production Engineering, UFMG)
  • Prof. Alexandre Delbem (Inst. Mathematical and Computational Sciences, USP)

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

[EDIT: 2016-09-23] - A few pictures can be seen here

Paper accepted - Electric Power Systems Research

We're very proud to inform that the work

Multiobjective Planning of Power Distribution Networks with Facility Location for Distributed Generation

by Cristiane Taroco, Ricardo Takahashi, and Eduardo G. Carrano has been accepted for publication in the Electric Power Systems Research (IF: 1.809). This paper reports some results of Cristiane's Ph.D. work under Prof. Carrano's supervision. You can read the abstract by clicking the "Read More" button below.

Read more: Paper accepted - Electric Power Systems Research

GECCO 2016

ORCS Lab is joining GECCO'2016, one of the top conferences in the evolutionary computation and metaheuristics fields. Prof. Felipe Campelo is presenting two papers:

  • F. Campelo, M. Botelho, Experimental Investigation of Recombination Operators for Differential Evolution. DOI: 10.1145/2908812.2908852
  • M. Teixeira, F. Goulart, F. Campelo, Evolutionary Multiobjective Optimization of Winglets. DOI: 10.1145/2908812.2908848

Prof. Campelo is also presenting an invited talk in the Evolutionary Computation in Practice workshop, titled EAs in Aeronautical Optimization - Some Results and Challenges

The presentation slides can be seen here, here, and here.

Moisés' M.Sc. Presentation

Moisés' M.Sc. dissertation, Análise Experimental de Operadores de Recombinação para o Algoritmo de Evolução Diferencial ("Experimental analysis of recombination operators for the differential evolution algorithm") will be presented at UFMG's School of Engineering, seminar room 1012, on July 15th 2016. The public presentation is scheduled to start at 2p.m., and all ORCS Lab members are invited to attend.

Besides Moisés' advisor Prof. Felipe Campelo, the dissertation committee will be composed of ORCS Lab's Prof. Lucas Batista and by PPGEE coordinator Prof. Rodney Saldanha.

[EDIT: click here for pictures.]

E-book released

The (Portuguese-only) e-book Mac OSX: Comandos Básicos e Avançados has just been released by the Andarilho collaboration. The book, written by Alessandro Vivas, Luciana Assis and ORCS Lab's André Maravilha, provides a general introduction to OSX's terminal, alongside with tips, tricks and hacks, organised in a way that simplifies the life of even reasonably experienced Mac users.

The book can be downloaded for free, right here.

AIMDay - Smart Industries

ORCS Lab will be joining the AIMDay: Smart Industries event that will be held in Belo Horizonte this coming Thursday. This particular event aims at bringing together industrial and academic partners from Brazil and Sweden, to discuss pressing problems in the context of the Smart Industries concept (also known as Industry 4.0). The faculty members of ORCS Lab will be involved in discussions on mathematical and statistical modelling, as well as optimisation, of problems in manufacturing, emergency management, mining and others. The full program of the event is available here.

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.

DEMO "toolbox" available

Differential Evolution for Multiobjective Optimization

The Octave/Matlab implementation of the Differential Evolution for Multiobjective Optimisation algorithm (with several variants) is now available in our Github repository. These codes were developed by Fillipe Goulart for his M.Sc. dissertation, under the mentoring of Prof. Felipe Campelo. You can find more information after the "Read more", or in our Resources page.

Read more: DEMO "toolbox" available

Paper accepted: Journal of Scheduling

This has definitely been a good semester for the ORCS Lab! We're very happy to announce that the paper:

Late Acceptance Hill-Climbing for High School Timetabling

by George H.C. Fonseca, Haroldo G. Santos and Eduardo G. Carrano has been accepted by Springer's Journal of Scheduling (IF: 1.028), and is currently undergoing final proofreading. This paper is a result of George's Ph.D. work with Prof. Carrano, and the abstract is available below.

Read more: Paper accepted: Journal of Scheduling

Paper accepted: IEEE Trans. Evolutionary Computation

We're very proud to announce that the paper:

Subpermutation Based Evolutionary Multiobjective Algorithm for Load Restoration in Power Distribution Networks

by Eduardo G. Carrano, Gisele P. Silva, Edgard P. Cardoso and Ricardo H.C. Takahashi, has been accepted for publication in the IEEE Transactions on Evolutionary Computation (IF: 3.654). The paper is the main result of Gisele's M.Sc. work, and was developed as part of an R&D project with power utility CEMIG-D. You can read the abstract by clicking the "Read More" button below.

Read more: Paper accepted: IEEE Trans. Evolutionary Computation

Paper presented: Brazilian Congress on Computational Intelligence

Last month our student Lianny Sanchez presented her work at CBIC (Brazilian Congress on Computational Intelligence). The paper, titled Uma Estratégia de Decomposição Tchebycheff Transformada para Otimização Evolucionária Multiobjetivo (A transformed Tchebycheff decomposition strategy for evolutionary multiobjective optimization) was authored by Lianny and Lucas Batista, and will be soon indexed at the IEEEXplore library.

You can read the abstract (in Portuguese) by clicking the "Read More" button below.

Read more: Paper presented: Brazilian Congress on Computational Intelligence

Best paper award

Prof. Felipe Campelo's paper Towards Statistical Convergence Criteria for Mutation-based Evolutionary Algorithms received the best paper award at the 2nd Latin American Congress on Computational Intelligence, which happened in Curitiba/Brazil last month. The presentation and source codes of the paper can be accessed here, and a demo app of the main results is available here.

You can read the abstract by clicking "Read more".

Read more: Best paper award