Leonardo Lozano Sanchez

I am an assistant professor in the Operations, Business Analytics, and Information Systems Department at University of Cincinnati. I received my B.Sc. degree from Universidad de los Andes, my M.Sc. degree from University of Florida, and my Ph.D. degree from Clemson University. My research has been published in Operations Research, INFORMS Journal on Computing, Transportation Science, and the European Journal of Operational Research, among others.

Ph D: Clemson University Clemson, 2017 (Industrial Engineering)

MS: University of Florida Gainesville, FL, 2014 (Industrial Engineering)

MS: Universidad de los Andes Bogota, Colombia, 2011 (Industrial Engineering)

BS: Universidad de los Andes Bogota, Colombia, 2009 (Industrial Engineering)

My research focuses on theory, methodology, and algorithms in combinatorial optimization, multilevel programming, and network flows. I am interested in application areas such as vehicle routing, scheduling, homeland security, survivable network design, and pricing in competitive markets.

Investigators:Lozano, Leonardo; Borrero, Juan S Bad Format: 20190100 -12-31-2021 Office of Naval Research Robust optimization with mixed-integer uncertainty sets 250000 Currently Under Review Type:Grant Level:Federal

Grant: #1-509512-Univ of Cincinnati / FA9550-22-1-0236 Investigators:Lozano Sanchez, Leonardo 05-01-2022 -04-30-2025 Air Force Office of Scientific Research Optimization of Network Surveillance and Defense Operations with Unmanned Aerial Vehicles Role:PI 61772.00 Hold Level:Federal

Peer Reviewed Publications

L. Lozano and J. C. Smith (2017. ) A value-function-based exact approach for the bilevel mixed integer programming problem .Operations Research, , 65 (3 ) ,768-786

L. Lozano, J. C. Smith, and M. E. Kurz. (2017. ) Solving the traveling salesman problem with interdiction and fortification .Operations Research Letters, , 45 (3 ) ,210-216

L. Lozano, D. Duque, and A. L. Medaglia (2015. ) An exact algorithm for the elementary shortest path problem with resource constraints .Transportation Science, , 50 (1 ) ,348-357

D. Duque, L. Lozano, and A. L. Medaglia (2015. ) Solving the orienteering problem with time windows via the pulse framework. .Computers and Operations Research, , 54 (1 ) ,168-176

D. Duque, L. Lozano, and A. L. Medaglia (2015. ) An exact method for the biobjective shortest path problem for large-scale road networks .European Journal of Operational Research, , 242 (3 ) ,788-797

M. A. Bolivar, L. Lozano, and A. L. Medaglia (2014. ) Acceleration strategies for the weight constrained shortest path problem with replenishment .Optimization Letters, , 8 (8 ) ,2155-2172

L. Lozano and A. L. Medaglia (2013. ) On an exact method for the constrained shortest path problem .Computers and Operations Research, , 40 (1 ) ,378-384

M. I. Restrepo, L. Lozano, and A. L. Medaglia (2012. ) Constrained network-based column generation for the multi-activity shift scheduling problem .International Journal of Production Economics, , 140 (1 ) ,466-472

Other Publications

Lozano, Leonardo; Polak, George; Magazine, Michael Integer programming formulations for the paired job scheduling problem . INFORMS Journal on Computing

Bergman, David; Cardonha, Carlos; Imbrogno, Jason; Lozano, Leonardo Optimization for Maximizing the Expected Value of Order Statistics . Operations Research

Lozano, Leonardo; Smith, J Cole (2018. ) A binary decision diagram based algorithm for solving a class of binary two-stage stochastic programs . Mathematical Programming

Borrero, Juan S; Lozano, Leonardo Robust optimization with mixed-integer uncertainty sets . Operations Research

Bergman, David; Lozano, Leonardo Decision Diagram Decomposition for Quadratically Constrained Binary Optimization . INFORMS Journal on Computing

Lozano, Leonardo; Bergman, David On the consistent path problem . Operations Research

Lozano, Leonardo; Smith, J Cole (2017. ) A Value-Function-Based Exact Approach for the Bilevel Mixed-Integer Programming Problem .65 (3 ) , Operations Research

Lozano, Leonardo; Smith, J Cole; Kurz, Mary E (2017. ) Solving the traveling salesman problem with interdiction and fortification .45 (3 ) , Operations Research Letters

Lozano, Leonardo; Smith, J Cole (2016. ) A backward sampling framework for interdiction problems with fortification .29 (1 ) , INFORMS Journal on Computing

Lozano, Leonardo; Duque, Daniel; Medaglia, Andrés L (2015. ) An exact algorithm for the elementary shortest path problem with resource constraints .50 (1 ) , Transportation Science

Duque, Daniel; Lozano, Leonardo; Medaglia, Andrés L (2015. ) An exact method for the biobjective shortest path problem for large-scale road networks .242 (3 ) , European Journal of Operational Research

Duque, Daniel; Lozano, Leonardo; Medaglia, Andrés L (2015. ) Solving the orienteering problem with time windows via the pulse framework .54 , Computers & Operations Research

Bolívar, Manuel A; Lozano, Leonardo; Medaglia, Andrés L (2014. ) Acceleration strategies for the weight constrained shortest path problem with replenishment .8 (8 ) , Optimization Letters

Lozano, Leonardo; Medaglia, Andrés L (2013. ) On an exact method for the constrained shortest path problem .40 (1 ) , Computers & Operations Research

Restrepo, María I; Lozano, Leonardo; Medaglia, Andrés L (2012. ) Constrained network-based column generation for the multi-activity shift scheduling problem .140 (1 ) , International Journal of Production Economics

Lozano, Leonardo; Medaglia, Andrés L; Velasco, Nubia (2009. ) Generation of Pop-Rock chord sequences using genetic algorithms and variable neighborhood search .

Technical Reports

Lozano, Leonardo; González, JE; Medaglia, AL (2011. ) A network-oriented formulation and decomposition approach to solve the 2011 RAS problem .

Invited Presentations

Lozano, Leonardo; Smith, J Cole (03-2018. ) A binary decision diagram based algorithm for solving a class of binary two-Stage stochastic programs .INFORMS Optimization Society, INFORMS, Denver, CO. Conference. . Level:International

Bad Format: 20180600 Dean’s List of Teaching Excellence for Spring 2018 Level:College Type:Teaching

Bad Format: 20151100 Runner-up in the 2015 Student Paper Competition The INFORMS Computing Society (ICS) Student Paper Award is given annually to the best paper on computing and operations research by a student author, as judged by a panel of the ICS. Level:International Type:Scholarship/Research

Grievances committee Committee Member Type:Departmental Service Level:Department 08-15-2017

INFORMS Student Chapter Faculty Advisor Type:Departmental Service Level:Department 08-15-2017 -08-15-2018

Computers and Operations Research Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations Bad Format: 20180100

Constraints Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations Bad Format: 20180100

IISE Transactions Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations Bad Format: 20180100

Omega Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations Bad Format: 20180100

Operations Research (Ad hoc referee ) Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations Bad Format: 20180100

Production and Operations Management Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations Bad Format: 20180100

Transportation Science Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations Bad Format: 20180100

American Mathematical Society Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations 08-15-2017

Networks Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations Bad Format: 20170500

Applied Mathematics and Computation Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations Bad Format: 20170100

Networks and Spatial Economics Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations 10-20-2016

European Journal of Operational Research Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations 01-01-2016

INFORMS Journal on Computing Reviewer, Journal Article Type:Prof. Org. Level:Service to Professional Associations 01-01-2016

INFORMS (Organized a session for the computing society at the INFORMS Annual meeting in 2017 ) Session Chair Type:Prof. Org. Level:Service to Professional Associations 01-20-2017 -10-25-2017

Bad Format: 20101000: The Institute for Operations Research and the Management Sciences, International

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