Pesquisas e Projetos

Laboratório de Pesquisa Operacional (ORLab)

O Grupo de Pesquisa Operacional (Operations Research) da Universidade de Brasília tem se dedicado a diversos projetos nas áreas mencionadas acima. Entre outros, destacam-se os seguintes projetos já realizados nessas áreas:

– Modelos de derivativos para análise de risco no financiamento de linhas de transmissão.

– Modelos financeiros para determinar os “momentos de ativação” (melhor momento para investir) e o retorno sobre o investimento em linhas de transmissão.

– Parcerias Público-Privadas (PPPs) em sistemas de transporte.

– Análise de risco no financiamento de novos projetos de infraestrutura no sistema de transporte.

– Efeitos da aplicação do comércio eletrônico (e-commerce) na logística e controle dinâmico de congestionamentos.

Publicações Selecionadas e Palestras:

Palestras.

  • Survival Models for Children with Severe Acute Malnutrition: a Nigerian case, R. A. Casonatto, R.C.Garcia, J. Ostrowski, B. Eales, B. Chaplin, T. Teixeita and P. Rubin presented in the TIMS/ORSA Joint National Meeting, Atlanta, GA, USA, October 2025.
  • Data Envelopment Analysis (DEA) to mesure the Hospitals Efficiency: a Brazilian case study, R.C.Garcia, R.A.H. Iwamoto, S.A. Pereira, C.A.M. Ferraz, L.G. Ferreira, L.E. Weaver, presented in the TIMS/ORSA Joint National Meeting, Atlanta, GA, USA, October 2025.
  • Discrete Event Simulation inside a Private Hospital in Brazil, R.C.Garcia, J.G.S. Vale, R. A. Casonatto, A.N. Assunção and N.B. Junior, presented in the TIMS/ORSA Joint National Meeting, Seattle, WA, USA, October 2024.
  • A Linear Program (lp) Model For Electric Vehicle Routing Problem: a case study in a Swiss Newtork of Sipermarkets, R.C.Garcia, and B. Souza, presented in the TIMS/ORSA Joint National Meeting, Phoenix, AZ, USA, October 2023.
  • A Linear Program (lp) Model For Elective Surgery Scheduling: A Case Study In An Italian Hospital, R.C.Garcia, R.L. Patrao, J.M. da Silva, presented in the TIMS/ORSA Joint National Meeting, Indiana – IN , USA, October 2022.
  • Applying Net Present Valkue Curves for Investment in High Speed Rail (HSR) Lines Project, R.C.Garcia, C.S.d.O.A.R. Pereira, N.C. Rodrigues, presented in the TIMS/ORSA Joint National Meeting, Anaheim – CA , USA, October 2021.
  • A Cost Reduction Model in a Fuel Distribution Terminal, A.R. Ortiz and R.C.Garcia, presented in the TIMS/ORSA Joint National Meeting, Anaheim – CA , USA, October 2021.
  • A cost reduction model for the building of Water Treatment Plants in the Brazilian Northeast, R.C.Garcia, M. G. Costa, R. Oliveira, G. Gomes, D. Rodriguez, C. Neumann, A. Café, presented in the TIMS/ORSA Joint National Meeting, Washington – DC , USA, November 2020.
  • A cost reduction model for the management of pipe cars in the Brazilian Northeast, R.C.Garcia, M. G. Costa, D. Samy, A. L. Oliveira, C. Neumann, R. M. Balduíno, presented in the TIMS/ORSA Joint National Meeting, Seattle, Washington, USA, November 2019.
  • Conflict Detection and Resolution with Local Search Algorithms for 4D-Navigation in ATM, V. F. Ribeiro, H. T.A. Rodrigues, V. B. F., L. Weigang and R. C. Garcia, ISDA – 2018 Conference, Velore, India, Dec. 6-8, 2018.
  • Finding multiple equilibria in a dynamic energy bilateral contract scheduling, R.C.Garcia, J. Contreras, M. Barbosa, B. Macedo, D. Monteiro, presented in the TIMS/ORSA Joint National Meeting, Phoenix, Arizona, USA, November 2018.
  • Feasibility analysis of the implementation of a High Speed Rail Line, R.C.Garcia, R. V. G. Vianna, A.Goulart presented in the TIMS/ORSA Joint National Meeting, Phoenix, Arizona, USA, November 2018.
  • Applying a Game Theory approach for a Dynamic Energy Bilateral contract scheduling, R.C.Garcia, . J.Contreras, J., J. E. C. S. Custodio, P. Vinicius, F. Toledo and M. Barbosa presented in the TIMS/ORSA Joint National Meeting, Houston, Texas, USA, October 2017.
  • Applying the Modern Portfolio Theory for a Dynamic Energy Portfolio Allocation in the Electricity Markets, R.C.Garcia, . J.Contreras, J., J. E. C. S. Custodio and V. González presented in the TIMS/ORSA Joint National Meeting, Nashville, Tennessee, USA, November 2016.
  • A Dynamic Garch Model for Energy Portfolio Allocation in Electricity Markets, R.C.Garcia, . J.Contreras, J., J. E. C. S. Custodio and V. González presented in the TIMS/ORSA Joint National Meeting, Philadelphia, Penssylvania, USA, November 2015.

Publicações.

  • Advances in Modelling of the Integrated Production Logistics in Sugarcane, Almeida P, Garcia R, Fonseca A., Promet – Traffic&Transportation, Vol. 34, No. 4, 595-608, 2022.
  • An Integrated Two-Level Integer Linear Program (ILP) Model for Elective Surgery Scheduling: A Case Study in an Italian Hospital, R.L. Patrao, R,C,. Garcia, J.M. da Silva, Mathematics,10, 1901, 2022.
  • Finding Multiple Equilibria for Raiffa-Kalai-Smorodinski and Nash Bargaining Equilibria in Electricity Markets, R. C. Garcia, J. Contreras, B. C. Macedo, D.da S. Monteiro and M.L. Barbosa, Designs Journal,  5, 3, 2021.
  • Deep Reinforcement Learning Model to Mitigate Congestion in Real-Time Traffic Light Networks, F.d.S.O. Borges, A. P. Fonseca, R.C. Garcia, Infrastructures Journal,  6, 138, 2021.
  • Raiffa-Kalai-Smorodinski Bargaining Solution for Bilateral Contracts in Electricity Markets, R. C. Garcia, J. Contreras, M.L. Barbosa, F.S. Toledo, P. V. A. Cunha, Energies Journal,  13, 2397, 2020.
  • Detecting Violation of Aircraft Separation Requirements, I. R. de Oliveira, V. F. Ribeiro, L. Weigang and R. C. Garcia, The Boeing Company and the University of Brasilia (applicants), United States Patent, Patent No. US 10,553.121 B1, Feb. 4, 2020.
  • Stable two-sided matching of slot allocation in airport collaborative decision making by top trading cycles mechanism, M.A.S. Souza, L. Weigang, R.C.Garcia, and J.Contreras, Chinese Journal of Aeronautics, 2018.
  • Applying modern portfolio theory for a dynamic energy portfolio allocation in electricity markets, s, R.C.Garcia, J.Contreras, and V. González, J.Contreras and J. E. S. C. Custodio, Electric Power Systems Research 150 (2017) 11–23, 2017.
  • Development of a Feasibility model for a High Speed Rail Line, R.C.Garcia, A.Goulart, T. C. Veiga, L. V. Cunha and M. Vilarindo, Transport Literature Journal 10,2, pp. 20-24, 2015.
  • Transmission Assets Investment Timing Using Net Present Value Curves, R.C.Garcia, J.Contreras, P.F. Correia, Muñoz, J.I. Energy Policy 38, pp. 598-605, 2010.
  • A Framework for Assessing Public Private Partnerships, D. Levinson, R.C.Garcia, K.Carlson, Institutions and Sustainable Transport – Regulatory Reform in Advanced Economies, Piet Rietveld and Roger Stough, (eds.), Ch. 13, 285-304, Edgar Blücher Inc, July 2007.
  • A Garch Forecasting Model to Predict Day-Ahead Electricity Prices, R.C.Garcia, J.Contreras,M.van Akkeren andJ.B.C.Garcia, IEEE Transactions on Power Systems Journal 20, 2, 867-874, May 2005.
  • On the pricing of Credit Spread Options: a two factor HW-BK Algorithm, J. B. C. Garcia, H. V. Ginderen and R. C. Garcia, International Journal of Theoretical & Applied Finance (IJTAF), 6,5,491-506, Aug. 2003.
  • A Pareto Improving Strategy for the Time-Dependent Morning Commute Problem, C.F. Daganzo and R. C. Garcia, Transportation Science Journal, 34, 303-312, 2000.
Pages

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