Túlio Toffolo

A fix-and-optimize heuristic for the Unrelated Parallel Machine Scheduling Problem
Computers & Operations Research, 163, pp. 106504 (2024).
George H. G. Fonseca, Guilherme B. Figueiroa and Túlio A. M. Toffolo.

Exponential-Size Neighborhoods for the Pickup-and-Delivery Traveling Salesman Problem
Transportation Science, 57 (2), pp. 289-572 (2023).
Toni Pacheco, Rafael Martinelli, Anand Subramanian, Túlio A. M. Toffolo and Thibaut Vidal.

Exact and heuristic approaches to Truck-Drone Delivery Problems
EURO Journal on Transportation and Logistics, 12, pp. 100094 (2023).
Júlia C. Freitas, Puca Huachi V. Penna and Túlio A. M. Toffolo.

A fix-and-optimize heuristic for the ITC2021 sports timetabling problem
Journal of Scheduling, 25, pp. 273-286 (2022).
George H. G. Fonseca and Túlio A. M. Toffolo.

The vessel swap-body routing problem
European Journal of Operational Research, 303 (1), pp. 354-369 (2022).
Vinı́cius S. M. Gandra, Hatice Çalık, Túlio A. M. Toffolo, Marco Antonio M. Carvalho and Greet Vanden Berghe.

Weapon-target assignment problem: exact and approximate solution algorithms
Annals of Operations Research, 312, pp. 581-606 (2022).
Alexandre C. Andersen, Konstantin Pavlikov and Túlio A. M. Toffolo.

The double traveling salesman problem with partial last-in-first-out loading constraints
International Transactions in Operational Research, 29 (4), pp. 2346-2373 (2022).
Jonatas B. C. Chagas, Túlio A. M. Toffolo, Marcone J. F. Souza and Manuel Iori.

The tactical berth allocation problem with time-variant specific quay crane assignments
Computers & Industrial Engineering, 155, pp. 107168 (2021).
Emmanouil Thanos, Tulio Toffolo, Haroldo Gambini Santos, Wim Vancroonenburg and Greet Vanden Berghe.

The impact of loading restrictions on the two-echelon location routing problem
Computers & Industrial Engineering, 160, pp. 107609 (2021).
Vinı́cius Martins Santos Gandra, Hatice Çalık, Tony Wauters, Túlio A. M. Toffolo, Marco Antonio M. Carvalho and Greet Vanden Berghe.

Truck scheduling in tank terminals
EURO Journal on Transportation and Logistics, 9 (1), pp. 100001 (2020).
Thomas Van den Bossche, Hatice Çalık, Evert-Jan Jacobs, Túlio A. M. Toffolo and Greet Vanden Berghe.

Heuristics for vehicle routing problems: Sequence or set optimization?
Computers & Operations Research, 105, pp. 118-131 (2019).
Túlio A. M. Toffolo, Thibaut Vidal and Tony Wauters.

The sport teams grouping problem
Annals of Operations Research, 275 (1), pp. 223-243 (2019).
Túlio A. M. Toffolo, Jan Christiaens, Frits C. R Spieksma and Greet Vanden Berghe.

Crane-operated warehouses: Integrating location assignment and crane scheduling
Computers & Industrial Engineering, 129, pp. 274-295 (2019).
Sam Heshmati, Túlio A. M. Toffolo, Wim Vancroonenburg and Greet Vanden Berghe.

Analysis of stochastic local search methods for the unrelated parallel machine scheduling problem
International Transactions in Operational Research, 26 (2), pp. 707-724 (2019).
Haroldo G. Santos, Túlio A. M. Toffolo, Cristiano L. T. F. Silva and Greet Vanden Berghe.

Exact methods for three-dimensional cutting and packing: a comparative study concerning single container problems
Computers & Operations Research, 109, pp. 12-27 (2019).
Everton F. Silva, Túlio A. M. Toffolo and Tony Wauters.

Compatibility of short and long term objectives for dynamic patient admission scheduling
Computers & Operations Research, 104, pp. 98-112 (2019).
Yi-Hang Zhu, Túlio A. M. Toffolo, Wim Vancroonenburg and Greet Vanden Berghe.

Tutorial de Desenvolvimento de Métodos de Programação Inteira Mista em Python usando o Pacote Python-MIP
Pesquisa Operacional para o Desenvolvimento, 11 (3), pp. 127-138 (2019).
Haroldo Gambini Santos and Túlio A. M. Toffolo.

Analysis of a constructive matheuristic for the traveling umpire problem
Journal of Quantitative Analysis in Sports, 15 (1), pp. 41-57 (2019).
Reshma C. Chandrasekharan, Túlio A. M. Toffolo and Tony Wauters.

Stochastic local search with learning automaton for the swap-body vehicle routing problem
Computers & Operations Research, 89, pp. 68-81 (2018).
Túlio A. M. Toffolo, Jan Christiaens, Sam Van Malderen, Tony Wauters and Greet Vanden Berghe.

A two-dimensional heuristic decomposition approach to a three-dimensional multiple container loading problem
European Journal of Operational Research, 257 (2), pp. 526-538 (2017).
Túlio A. M. Toffolo, Eline Esprit, Tony Wauters and Greet Vanden Berghe.

Variable neighborhood search accelerated column generation for the nurse rostering problem
Electronic Notes in Discrete Mathematics, 58, pp. 31-38 (2017).
Rafael A. M. Gomes, Túlio A. M. Toffolo and Haroldo Gambini Santos.

Multi-machine energy-aware scheduling
EURO Journal on Computational Optimization, 5 (1), pp. 285-307 (2017).
David Van Den Dooren, Thomas Sys, Túlio A. M. Toffolo, Tony Wauters and Greet Vanden Berghe.

Branch-and-bound with decomposition-based lower bounds for the Traveling Umpire Problem
European Journal of Operational Research, 250 (3), pp. 737-744 (2016).
Túlio A. M. Toffolo, Tony Wauters, Sam Van Malderen and Greet Vanden Berghe.

An integer programming approach to the multimode resource-constrained multiproject scheduling problem
Journal of Scheduling, 19 (3), pp. 295-307 (2016).
Túlio A. M. Toffolo, Haroldo G. Santos, Marco A. M. Carvalho and Janniele A. Soares.

Integer programming techniques for the nurse rostering problem
Annals of Operations Research, 239 (1), pp. 225-251 (2016).
Haroldo G. Santos, Túlio A. M. Toffolo, Rafael A. M. Gomes and Sabir Ribas.

GOAL solver: a hybrid local search based solver for high school timetabling
Annals of Operations Research, 239 (1), pp. 77-97 (2016).
George H. G. Fonseca, Haroldo G. Santos, Túlio A. M. Toffolo, Samuel S. Brito and Marcone J. F. Souza.

Branch-and-cut and hybrid local search for the multi-level capacitated minimum spanning tree problem
Networks, 59 (1), pp. 148-160 (2012).
Eduardo Uchoa, Túlio A. M. Toffolo, Mauricio C. de Souza, Alexandre X. Martins and Ricardo Fukasawa.

A SA-VNS approach for the High School Timetabling Problem
Electronic Notes in Discrete Mathematics, 39, pp. 169-176 (2012).
Samuel S. Brito, George H. G. Fonseca, Túlio A. M. Toffolo, Haroldo G. Santos and Marcone J. F. Souza.

GRASP with hybrid heuristic-subproblem optimization for the multi-level capacitated minimum spanning tree problem
Journal of Heuristics, 15 (2), pp. 133-151 (2009).
Alexandre X. Martins, Mauricio C. de Souza, Marcone J. F. Souza and Túlio A. M. Toffolo.

A Matheuristic to the Unrelated Parallel Machine Scheduling Problem
In Annals of the LIII Simpósio Brasileiro de Pesquisa Operacional (SBPO), 53, pp. 139392, João Pessoa, Brazil (2021).
Guilherme B. Figueiroa, George H. G. Fonseca and Túlio A. M. Toffolo.

Análise e Abordagens Multiobjetivo para o Problema de Escalonamento de Pátio Operado por Guindastes
In Annals of the LII Simpósio Brasileiro de Pesquisa Operacional (SBPO), João Pessoa, Brazil (2020).
Thomás Gouvêa, Rodrigo Silva and Túlio A. M. Toffolo.

Heurı́sticas matemáticas aplicadas ao Problema de Carregamento de Contêineres
In Annals of the LII Simpósio Brasileiro de Pesquisa Operacional (SBPO), João Pessoa, Brazil (2020).
Kelly Marcia Oliveira and Túlio A. M. Toffolo.

Integer programming for home care scheduling with flexible task frequency and controllable processing times
In Proceedings of the 8th Multidisciplinary International Conference on Scheduling: Theory and Applications (MISTA), pp. 121-132, Kuala Lumpur, Malaysia (2017).
Pieter Smet, Federico Mosquera, Túlio A. M. Toffolo and Greet Vanden Berghe.

Grouping sport teams into round robin competitions
In Proceedings of the 11th International Conference of the Practice and Theory of Automated Timetabling (PATAT), pp. 353-369, Udine, Italy (2016).
Túlio A. M. Toffolo, Jan Christiaens, Frits Spieksma and Greet Vanden Berghe.

Neighborhood Composition Strategies in Stochastic Local Search
In Hybrid Metaheuristics: 10th International Workshop, HM 2016, Plymouth, UK, June 8-10, 2016, Proceedings, pp. 118-130, Cham (2016).
Janniele A. S. Araujo, Haroldo G. Santos, Davi D. Baltar, Túlio A. M. Toffolo and Tony Wauters.

Branch-and-Price and Improved Bounds to the Traveling Umpire Problem
In Proceedings of the 10th International Conference on Practice and Theory of Automated Timetabling (PATAT), pp. 420-432, York, UK (2014).
Túlio A. M. Toffolo, Sam Van Malderen, Tony Wauters and Greet Vanden Berghe.

An Integer Programming Approach for the Multi-Mode Resource-Constrained Multi-Project Scheduling Problem
In Proceedings of the 6th Multidisciplinary International Scheduling Conference: Theory & Applications (MISTA), pp. 840-848, Ghent, Belgium (2013).
Haroldo G. Santos, Marco A. M. Carvalho, Túlio A. M. Toffolo and Janniele A. Soares.

Late Acceptance-Hill Climbing Applied to the High School Timetabling Problem
In Proceedings of the 6th Multidisciplinary International Scheduling Conference: Theory & Applications (MISTA), pp. 331-344, Ghent, Belgium (2013).
George H. G. Fonseca, Haroldo G. Santos and Túlio A. M. Toffolo.

Local search techniques applied to the Unrelated Parallel Machine Scheduling Problem with Sequence Dependent Setup Time
In Proceedings of the 6th Multidisciplinary International Scheduling Conference: Theory & Applications (MISTA), pp. 458-471, Ghent, Belgium (2013).
Lucas U. Rodrigues, Haroldo G. Santos, Túlio A. M. Toffolo and Cristiano L. T. F. Silva.

Simulated Annealing e Iterated Local Search Adaptativos Aplicado ao Problema de Sequenciamento de Máquinas Paralelas não Relacionadas com Tempo de Preparação Dependendo da Sequência
In Annals of the XLV Simpósio Brasileiro de Pesquisa Operacional (SBPO), Natal, Brazil (2013).
Lucas U. Rodrigues, Haroldo G. Santos and Túlio A. M. Toffolo.

Modelos e Métodos de Resolução para Problemas de Escalonamento de Projetos
In Annals of the XLV Simpósio Brasileiro de Pesquisa Operacional (SBPO), Natal, Brazil (2013).
Haroldo G. Santos, Marco A. M. Carvalho, Túlio A. M. Toffolo and Janniele A. Soares.

A SA-ILS approach for the High School Timetabling Problem
In Proceedings of the 9th international conference on the Practice and Theory of Automated Timetabling (PATAT), pp. 493-496 (2012).
George H. G. Fonseca, Haroldo G. Santos, Túlio A. M. Toffolo, Samuel S. Brito and Marcone J. F. Souza.

Técnicas de Busca Local para o Problema da Programação de Horários Escolares
In Annals of the XLIV Simpósio Brasileiro de Pesquisa Operacional (SBPO), Rio de Janeiro, Brazil (2012).
George H. G. Fonseca, Samuel S. Brito, Túlio A. M. Toffolo, Haroldo G. Santos and Marcone J. F. Souza.

Towards Generic MIP Solvers for Rostering and Timetabling. Proceedings of the Fourth International Workshop on Model-based Metaheuristics
In 4th International Workshop on Model-based Metaheuristics (Matheuristics), Angra dos Reis, Brazil (2012).
Haroldo G. Santos, Túlio A. M. Toffolo, Samuel S. Brito and George H. G. Fonseca.

Integer Programming Techniques for the Nurse Rostering Problem
In Proceedings of the 9th International Conference on the Practice and Theory of Automated Timetabling (PATAT), Oslo, Norway (2012).
Haroldo G. Santos, Túlio A. M. Toffolo, Sabir Ribas and Rafael A. M. Gomes.

Heurı́sticas e Programação Inteira para o Problema das Enfermeiras
In Annals of the XLIV Simpósio Brasileiro de Pesquisa Operacional (SBPO), Rio de Janeiro, Brazil (2012).
Haroldo G. Santos, Túlio A. M. Toffolo, Rafael A. M. Gomes and Rafael H. Vareto.

Branch-and-cut and GRASP with hybrid local search for the multi-level capacitated minimum spanning tree problem
In Proceedings of the International Network Optimization Conference (INOC) 2009, Pisa, Italy (2009).
Eduardo Uchoa, Túlio A. M. Toffolo, Mauricio C. Souza and Alexandre X. Martins.

Sistema de Otimização para o Planejamento da Produção e Vendas de uma Empresa Mineradora
In Annals of the XXXIX Simpósio Brasileiro de Pesquisa Operacional (SBPO), pp. 2391-2402, Rio de Janeiro, Brazil (2007).
José Maria C. B. Alves, Frederico A. C. Guimarães, Túlio A. M. Toffolo and Marcone J. F. Souza.

Geração das Jornadas de Trabalho de Tripulações Aéreas via Heurı́stica de Refinamentos Sucessivos
In Annals of the Simpósio de Pesquisa Operacional e Logı́stica da Marinha (SPOLM), pp. 2391-2402, Rio de Janeiro, Brazil (2006).
Túlio A. M. Toffolo, Marcone J. F. Souza, Roberto C. V. Pontes and Gustavo P. Silva.

Heurı́stica de Recobrimento Aplicada à Escala de Tripulações Aéreas
In Annals of the XXXVIII Simpósio Brasileiro de Pesquisa Operacional (SBPO), Goiânia, Brazil (2006).
Túlio A. M. Toffolo, Marcone J. F. Souza, Roberto C. V. Pontes and Gustavo P. Silva.

Abordagem heurı́stica para a resolução do problema de programação mensal de tripulações de ônibus urbano
In Annals of the XXVIII Congresso Nacional de Matemática Aplicada e Computacional (CNMAC), São Paulo, Brazil (2005).
Túlio A. M. Toffolo, Marcone J. F. Souza, Roberto C. V. Pontes and Gustavo P. Silva.

Algoritmos Simulated Annealing e Iterated Local Search Aplicados à Resolução do Problema de Rodı́zio de Tripulações de Ônibus Urbano
In Annals of the Simpósio de Pesquisa Operacional e Logı́stica da Marinha (SPOLM), Rio de Janeiro, Brazil (2005).
Marcone J. F. Souza, Gustavo P. Silva and Túlio A. M. Toffolo.

Resolução do Problema de Rodı́zio de Tripulações de Ônibus Urbano via Simulated Annealing e Iterated Local Search
In Congresso de Pesquisa e Ensino em Transportes - Panorama Nacional de Pesquisa em Transportes 2005 (ANPET), pp. 657-668, Rio de Janeiro, Brazil (2005).
Marcone J. F. Souza, Gustavo P. Silva and Túlio A. M. Toffolo.