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Fabio is an assistant professor at Decision Sciences Lab and the department of Mathematics at the University of Nebraska at Omaha. His research interests include, Operations Research, Optimization Modeling, Mathematical Programming andOptimization Algorithms.

Fabio Torres Vitor

Fabio Torres Vitor

Operations Research
  • Ph.D., Industrial Engineering, Kansas State University, August 2019
  • M.S., Operations Research, Kansas State University, August 2015
  • B.S., Industrial Engineering, Maua Institute of Technology, January 2013

SUMMARY OF ACTIVITIES/INTERESTS

  • Operations Research
  • Optimization Modeling
  • Mathematical Programming
  • Optimization Algorithms

Academic and Professional Experience

Fabio joined the Data and Decision Sciences Lab and the department of Mathematics at the University of Nebraska at Omaha as an Assistant Professor in 2019. He received a Ph.D. in Industrial Engineering and a M.S. in Operations Research from Kansas State University, and a B.S. in Industrial Engineering from Maua Institute of Technology, Brazil. Fabio also has around 10 years of industry experience. He worked for companies such as Monsanto, Kalmar (Cargotec Corporation), and Volkswagen. He also participated in the Google Summer of Code program as a student developer.

Fabio’s research includes both theoretical and applied topics in operations research. His theoretical research creates algorithms to more quickly solve continuous and discrete optimization problems such as linear, nonlinear, and integer programs. For instance, Fabio developed multidimensional search simplex and interior point methods for linear programs as well as cutting plane techniques and branching strategies for integer programs. Some of his applied research involves the application of optimization models and other operations research tools to reduce inventory costs, improve delivery routings, optimize nursery planting allocation, improve airport operations, and create strategies to overcome human trafficking.

Fabio is a recipient of the Nebraska EPSCoR FIRST Award, which is supported by the National Science Foundation to advance the research of early-career tenure-track faculty. During his Doctoral studies, Fabio received the K-State 2025 College of Engineering Fellowship for two consecutive years. He also received several awards during the time he worked for Volkswagen, including the second place in the Best Apprentice Award. Fabio is a member of the Institute for Operations Research and the Management Sciences (INFORMS), the Institute of Industrial and Systems Engineering (IISE), the Society for Industrial and Applied Mathematics (SIAM), and the Mathematical Optimization Society (MOS).

PUBLICATIONS

  • Bailey J. P., Easton T., and Vitor F., Octanary Polyhedral Branch and Bound for Integer Programs, International Journal of Operational Research, (In Press).
  • Vitor F., Easton T., Approximate and Exact Merging of Knapsack Constraints With Cover Inequalities, Optimization, Advance Online Publication (2020).
  • Vitor F., Easton T., the Double Pivot Simplex Method, Mathematical Methods of Operations Research, 87(1), 109-137 (2018).
  • Vitor F., the Ratio Algorithm to Solve the Optimal Basis of Two Constraint Linear Programs, Proceedings of the 2018 IISE Annual Conference, 1949-1954 (2018).
  • Vitor F., Easton T., a Two Dimensional Search Primal Affine Scaling Interior Point Algorithm for Linear Programs, Proceedings of the 2018 IISE Annual Conference, 1961-1966 (2018).
  • Vitor F., Antunes v. A., Chwif L., Warnings About Simulation Revisited: Improving Operations in Congonhas Airport, Proceedings of the 2016 Winter Simulation Conference, 2418-2429 (2016).
  • Vitor F., Easton T., Merged Knapsack Cover Inequalities for the Multiple Knapsack Problem, Proceedings of the 2016 Industrial and Systems Engineering Research Conference, 607-612 (2016).

CURRENT GRADUATE STUDENTS

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Nishi Mahato
Research Project

On the Implementation of Multidimensional Searches into a Simplex Solver. Sponsored by Nebraska EPSCoR FIRST – National Science Foundation.

CURRENT UNDERGRADUATE STUDENTS

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Daniel Faronbi
Research Project

On the Implementation of Multidimensional Searches into an Interior Point Solver. Sponsored by Nebraska EPSCoR FIRST – National Science Foundation.

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Isidore Jeovanis Sossa
Research Project

Delivery Routing Tool to Optimize and Automate the Delivery of Food Pantries in the Intercultural Senior Center. Collaborated with Intercultural Senior Center.

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Sydney Meier
Research Project

A Discrete Event Simulation Model to Overcome Human Trafficking in the U.S and the State of Nebraska.

PAST GRADUATE STUDENTS

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Adel Kabiri Kopaei
Research Project

Handling Noisy Speech in Voice Recognition Systems by a Deep Learning Model based on Convolution Neural Networks.

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Josep Maria Mateu Benesey
Research Project

Optimization Tool to Reduce Inventory and Production Costs at Piensos Picart.