Andrés L. Medaglia, Ph.D. Associate Professor, Industrial Engineering Department Director, Center for Optimization and Applied Probability (COPA)

Contact information

Teaching

Courses

• Optimization Principles (IIND2103)
• Network Flows (IIND4115)
• Advanced Optimization (IIND4101)
• Application in Operations Research (IIND4108)
• Topics on Optimization (IIND4112)
• Topics on Operations Research (IIND4113)

Office Hours

• By appointment via e-mail

Research Interests

• Multiobjective (evolutionary) optimization
• Optimization modeling systems
• Large-scale optimization
• Combinatorial optimization
• Discrete event simulation
• Simulation optimization
• Decision support systems
• Optimization applications in logistics
• Optimization applications in finance and economics
• Decision making under vagueness and uncertainty

Education

• Postdoctoral Fellow, Industrial Engineering Department - N.C. State U. and SAS Institute Inc., (Raleigh & Cary, NC, U.S.A.), 2001-2002
• Ph.D. in Operations Research, North Carolina State University (Raleigh, NC, U.S.A.), 2001
• M.Sc. in Industrial Engineering, Universidad de los Andes (Bogotá, Colombia), 1995
• B.Sc. in Industrial Engineering, Pontificia Universidad Javeriana (Bogotá, Colombia), 1992

Working papers

1. García-López, N. P., Sánchez-Silva, M., Medaglia, A. L., & Chateauneuf, A. A hybrid topology optimization methodology combining Simulated Annealing and SIMP. Under review.
2. Mendoza, J. E., Castanier, B., Guéret, C., Medaglia, A. L., Velasco, N. Constructive heuristics for the multi-compartment vehicle routing problem with stochastic demands. Under review.
3. Walteros, J. L., Medaglia, A. L., and Riaño, G. A hybrid genetic algorithm for route design in a bus rapid transit system. Under review.
4. Villegas, J. G., Prins, C., Prodhon, C., Medaglia, A. L., Velasco, N. A GRASP/VNS with (evolutionary) path relinking for the truck and trailer routing problem. Working paper.
5. Medaglia, A. L., Sefair, J. A. and Wilson, J. R. Generating correlated random vectors using mixed-integer programming. Working paper.
6. Sefair, J. A., Méndez, C. Y. and Medaglia, A. L.. Mean-semivariance model for project selection: an illustration from the oil and gas industry. Under review.

Journal Articles

1. Feillet, D., Gendreau, M., Medaglia, A. L., Walteros, J. L. A note on branch-and-cut-and-price. Operations Research Letters. In press.
2. Villegas, J. G., Prins, C., Prodhon, C., Medaglia, A. L., and Velasco, N. GRASP/VND and multi-start evolutionary local search for the single truck and trailer routing problem with satellite depots. Engineering Applications of Artificial Intelligence. 23(5), pp. 780-794, 2010.
3. Mendoza, J. E., Castanier, B., Guéret, B., Medaglia, A. L. and Velasco, N. A memetic algorithm for the multi-compartment vehicle routing problem with stochastic demands. Computers and Operations Research. 37, pp. 1886-1898, 2010.
4. Medaglia, A. L., Sefair, J. A.. Optimizando la planeación en el sector público. EGOB: Revista de Asuntos Públicos, 3: 44-49. 2009. ISSN: 2027-2421.
5. Molano, A. M., Medaglia, A. L., Sarmiento, O. L., Sefair, J. A.. Modelo de planeación de áreas urbanas para construir nuevos parques vecinales en Bogotá. Revista Planeación y Desarrollo, 39(2): 140-173, 2009.
6. Medaglia, A. L., Villegas, J. G. and Rodríguez-Coca, D. M.. Hybrid biobjective evolutionary algorithms for the design of a hospital waste management network, Journal of Heuristics. 15(2):153-176, 2009.
7. Rodríguez, J. E., Medaglia, A. L. and Coello-Coello, C.A.. Design of a motorcycle frame using neuroacceleration strategies in MOEAs. Journal of Heuristics. 15(2): 177-196, 2009.
8. Castro-Lacouture, D., Sefair, J. A., Florez, L., and Medaglia, A. L.. Optimization model for the selection of materials using a LEED-based green building rating system in Colombia, Building and Environment, 44(6):1162-1170, 2009.
9. Mendoza, J. E., Medaglia, A. L. and Velasco, N.. An evolutionary-based decision support system for vehicle routing: the case of a public utility. Decision Support Systems, 46(3):730-742, 2009.
10. Medaglia, A. L., Hueth, D., Mendieta, J. C. and Sefair, J.A. Multiobjective Model for the Selection and Timing of Public Enterprise Projects. Socio-Economic Planning Sciences. 42(1):31-45, 2008.
11. Gutiérrez, E. and Medaglia, A. L.. Labeling Algorithm for the Shortest Path Problem with Turn Prohibitions with Application to Large Scale Road Networks. Annals of Operations Research. 157(1): 169-182, 2008.
12. Rodríguez-Coca, D. M. and Medaglia, A. L.. Configuración logística para tratamiento de residuos hospitalarios peligrosos. Revista de la Escuela Colombiana de Ingeniería, 68: 65-75, 2007.
13. Santamaría, N., Medaglia, A. L., and Beltrán, H. F. The winner determination problem in divisible object auctions. The Engineering Economist. 52(2): 179-194, 2007.
14. Castro-Lacouture, D., Medaglia, A. L. and Skibniewski, M. J. Supply chain optimization tool for purchasing decisions in B2B construction marketplaces. Automation in Construction. 16(5): 569-575, 2007.
15. Medaglia, A. L., Graves, S. B., and Ringuest, J. L. Multiobjective evolutionary approach for linearly constrained project selection under uncertainty. European Journal of Operational Research. 179(3): 869-894, 2007.
16. Medaglia, A. L., Cohen, M-d., and Castro-Lacouture, D.. Optimizing B2B transactions using the Marketplace Competitive Analyzer. International Journal of Management Science and Engineering Management, 1(1):37-46, 2006.
17. Villegas, J. G., Palacios, F., and Medaglia, A. L.. Solution methods for the bi-objective (cost-coverage) unconstrained facility location problem with an illustrative example. Annals of Operations Research. 147(1): 109-141, 2006.
18. Medaglia, A. L. and Fang, S.-C.. A genetic-based framework for solving (multi-criteria) weighted matching problems.. European Journal of Operational Research, 149(1): 77-101, 2003.
19. Medaglia, A. L., Fang, S.-C., Nuttle, H. L. W., and Wilson, J. R.. An efficient and flexible mechanism for constructing membership functions. European Journal of Operational Research, 139: 84-95, 2002.
20. Medaglia, A. L., Fang, S.-C., and Nuttle, H. L. W.. Fuzzy controlled simulation optimization. Fuzzy Sets and Systems. 127(1):65-84, 2002.
21. Cohen, M-d., Kelly, C. B., and Medaglia, A. L. Decision support with Web-enabled software. Interfaces, 31(2):109-129, 2001.

Book Chapters

1. Lozano, L., Medaglia, A. L., and Velasco, N. Generation of Pop-Rock Chord Sequences Using Genetic Algorithms and Variable Neighborhood Search. Lecture Notes in Computer Science. 5484, pp. 573-578, 2009.
2. Peñaranda, A., Sarmiento, O. L., Medaglia, A. L., García, J. M., Aparicio, M. L., Barón, C., Rodríguez, J. H., Calderón, L., Tovar, S. and Satizábal, C. L.. Factores predictivos en la percepción del habla en niños posimplante coclear. In Manual de Otorrinolaringología, cabeza y cuello. Augusto Peñaranda, Juan Manuel García y Martín Pinzón (Eds.). Actualidades Médico Odontológicas Latinoamérica C.A. (AMOLCA). ISBN: 980-6574-80-X. 2007.
3. Medaglia, A. L., and Gutiérrez, E. JGA: An Object-Oriented Framework for Rapid Development of Genetic Algorithms. In Handbook of Research on Nature Inspired Computing for Economics and Management. Jean-Phillipe Rennard (Ed.). ISBN: 1-59140-984-5. 2006.
4. Medaglia, A. L., and Gutiérrez, E. Applications of JGA to Operations Management and Vehicle Routing. In Handbook of Research on Nature Inspired Computing for Economics and Management. Jean-Phillipe Rennard (Ed.). ISBN: 1-59140-984-5. 2006.
5. Medaglia, A. L., Gutiérrez, E., and Villegas, J.G. Solving Facility Location Problems using a Tool for Rapid Development of Multi-Objective Evolutionary Algorithms (MOEAs). In Handbook of Research on Nature Inspired Computing for Economics and Management. Jean-Phillipe Rennard (Ed.). ISBN: 1-59140-984-5. 2006.
6. Medaglia, A. L. An evolutionary algorithm for project selection problems based on stochastic multiobjective linearly constrained optimization. Chapter in Graves, S. B. and Ringuest, J. L., Models and methods for project selection: concepts from management science, finance, and information technology. Boston: Kluwer Academic Publishers, 2003.

Technical Reports

1. Sefair, J. A., Medaglia, A. L., Cohen, M.-d. Método de Puntaje Óptimo (MPO). Technical Report No.: COPA-2008-4. Universidad de los Andes, 2008.
2. Mendoza, J. E., Castanier, B., Guéret, C., Medaglia, A. L., and Velasco, N. M. An instance generator for Vehicle Routing Problems with Stochastic Demands. Technical Report N: 08/01/AUTO. École des Mines de Nantes. France. 2008.
3. Mendoza, J. E., Castanier, B., Guéret, C., Medaglia, A. L., and Velasco, N. M. Approximating the expected recursion cost on a Multi-Compartment Vehicle Routing Problem with Stochastic Demands. Technical Report N: 08/03/AUTO. École des Mines de Nantes. France. 2008.
4. Sefair, J. A. and Medaglia, A. L. Project selection and timing under finite capacity resource constraints. Technical Report No.: COPA-2006-7. Universidad de los Andes, 2006.

Other Professional Publications

1. Cancela, H., García, A., Loiseau, I., and Medaglia, A. L. Preface of the Special Issue Dedicated to the XIII Latin-Ibero-American Conference on Operations Research (CLAIO 2006). Journal of Industrial and Management Optimization. 5(2): i-ii.
2. Medaglia, A. L. Programación a gran escala: generación de columnas. Universidad de los Andes: Centro de Optimización y Probabilidad Aplicada. Reporte COPA 2008 - 5, 2008.
3. Medaglia, A. L., Takahashi, S., Mejía, G., Gutiérrez, E., Hernández, J., Botero, R., & Sarmiento, M.C.. Producción modelo. Colombia Ciencia y Tecnología., 23 (3): 34-41, ISSN: 0120-5595, 2007.
4. Medaglia, A. L. and Santamaría, N. DLP and Extensions: An Optimization Model and Decision Support System (Springer-Verlag, 2001.). Book review for the Journal of the Operational Research Society, 56 (12): 1452-1454, 2005.
5. Medaglia, A. L.. Palm Enterprise Applications by Ray Rischpater (John Wiley & Sons, 2000). Book review for the Journal of the Operational Research Society, 55 (6): 679-680, 2004.

Conference Proceedings

1. Medaglia, A. L. and Sefair, J. A. Generating correlated random vectors using mixed-integer programming. In Proceedings of the 2009 Industrial Engineering Research Conference (IERC). Miami, U.S.A., 2009.
2. Villegas, J. G., Medaglia, A. L., Prins, C., Prodhon, C., and Velasco, N. GRASP/Evolutionary Local Search Hybrids for a Truck and Trailer Routing Problem. VIII Metaheuristic International Conference (MIC), Hamburg, Germany, 2009.
3. Mendoza, J. E., Castanier, C., Guéret, C., Medaglia, A. L., and Velasco, N. A simulation-based MOEA for the multi-compartment vehicle routing problem with stochastic demands. VIII Metaheuristic International Conference (MIC), Hamburg, Germany, 2009.
4. Bernal, A., Ramírez, M. A., Castro, H., Walteros, J. L., and Medaglia, A. L.. JG2A: A Grid-Enabled Object-Oriented Framework for Developing Genetic Algorithms. In Proceedings of the 2009 IEEE Systems and Information Engineering Design Symposium, pp. 1-6, 2009.
5. Sefair, J. A., Castro-Lacouture D., and Medaglia, A. L. Material selection in building construction using optimal scoring method (OSM). Samuel T. Ariaratnam and Eddy M. Rojas (editors). In Proceedings of the 2009 Construction Research Congress, ASCE, Seattle, WA. pp. 1079-1086, ISBN: 978-0-7844-1020-2, 2009.
6. Castro-Lacouture, D., Sefair J. A., Florez, L., and Medaglia, A. L.. Optimization model for the selection of materials using the LEED green building rating system. Samuel T. Ariaratnam and Eddy M. Rojas (editors). In Proceedings of the 2009 Construction Research Congress, ASCE, Seattle, WA. pp. 608-617, ISBN: 978-0-7844-1020-2, 2009.
7. Vargas, M. A., Sefair, J., Walteros, J. L., Medaglia, A. L., Rivera, L. Car pooling optimization: a case study in Strasbourg (France). In Proceedings of the 2008 IEEE Systems and Information Engineering Design Symposium, pp. 89-94, ISBN: 1-4244-2366-8, 2008.
8. Guardo, E., Castro, H., Bravo, G. y Medaglia, A. L. Uso de tecnología grid en algoritmos de optimización evolutiva. In Conferencia Latinoamericana de Computación de Alto Rendimiento (CLCAR). ISBN: 978-958-708-299-9. Santa Marta, Colombia, 2007.
9. Walteros, J. L., Riaño, G. and Medaglia, A. L.. A hybrid genetic algorithm for route design in a bus rapid transit system. In Proceedings of the 7th Metaheuristics International Conference (MIC), Montreal, Canada, 2007.
10. Mendoza, J. E., Medaglia, A. L. and Velasco, N. M.. Vehicle routing in a public utility: a decision support system with hybrid techniques. In Proceedings of the 7th Metaheuristics International Conference (MIC), Montreal, Canada, 2007.
11. Zuluaga, A., Sefair, J. and Medaglia, A. L.. Model for the selection and scheduling of interdependent projects. In Proceedings of the 2007 IEEE Systems and Information Engineering Design Symposium, 2007.
12. Gutiérrez, E., Medaglia, A. L., and Mejía, G.. A Modeling framework and discrete-event based scheduler for flexible job shops. XIII Congreso Latino-Iberoamericano de Investigación de Operaciones (CLAIO), Montevideo, Uruguay, 2006.
13. Medaglia, A. L., Villegas, J.G., and Rodríguez-Coca, D.M. Hybrid bi-objective evolutionary algorithms for the design of a hospital waste management network. XIII Congreso Latino-Iberoamericano de Investigación de Operaciones (CLAIO), Montevideo, Uruguay, 2006.
14. Sefair, J. and Medaglia, A. L.. Selección y ordenamiento de proyectos de inversión con restricciones de recursos de capacidad finita. XIII Congreso Latino-Iberoamericano de Investigación de Operaciones (CLAIO), Montevideo, Uruguay, 2006.
15. Segura, A., Castillo, M., Medaglia, A. L., and Castro, E.. Optimización del proceso de asignación de turnos de acceso al sistema de elaboración de horarios vía Web en una universidad. XIII Congreso Latino-Iberoamericano de Investigación de Operaciones (CLAIO), Montevideo, Uruguay, 2006.
16. Rodríguez, J.E., Medaglia, A. L., and Coello-Coello, C.A. Diseño del marco de una motocicleta con algoritmos evolutivos multiobjetivo y elementos finitos. XIII Congreso Latino-Iberoamericano de Investigación de Operaciones (CLAIO), Montevideo, Uruguay, 2006.
17. Mejía, G., Gutiérrez, E., Medaglia, A. L., A framework for integrating shop floor modeling and scheduling applications: an illustrative case, Proceedings of the Third International Conference on Production Research–Americas’ Region (ICPR-AM06) (CD-ROM), 2006, Curitiba, Brazil.
18. Gutiérrez E. Botero, R., Hernández J., Takahashi S., Medaglia A. L., An Object Oriented Modeling Engine of Manufacturing Systems, Proceedings of the Third International Conference on Production Research –Americas’ Region (ICPR-AM06) (CD-ROM), 2006, Curitiba, Brazil.
19. Pedraza, F., García, A. and Medaglia, A. L.. Efficient coverage algorithms for wireless sensor networks. Ellen J. Bass, (editor). In Proceedings of the 2006 Systems and Information Engineering Design Symposium, 2006.
20. Sefair, J. A. and Medaglia, A. L.. Towards a model for selection and scheduling of risky projects. Ellen J. Bass, (editor). In Proceedings of the 2005 Systems and Information Engineering Design Symposium, 2005.
21. Rodríguez, J. E., Medaglia, A. L. and Casas, J. P.. Approximation to the optimal design of a motorcycle frame using finite element analysis and evolutionary algorithms. Ellen J. Bass, (editor). In Proceedings of the 2005 Systems and Information Engineering Design Symposium, 2005.
22. Gutiérrez, E., Medaglia, A. L., Forero, J. F. and Velásquez, J. C.. Algoritmo de marcación para el problema de ruta más corta con prohibiciones de giro con aplicación a mallas viales reales de gran escala (Labeling algorithm for the shortest path problem with turn prohibitions with application to large scale road networks). Contributed talk given at XII Latin-Ibero-American Congress on Operations Research, La Habana, Cuba, 2004.
23. Castro, E. and Medaglia, A. L.. Heurística basada en programación entera binaria para el problema de asignación de salones en una universidad ( Integer programming-based heuristic for university timetabling ). Contributed talk given at XII Latin-Ibero-American Congress on Operations Research, La Habana, Cuba, 2004.
24. Medaglia, A. L. and Blanco, E. E.. LIFCO - A SAS application for container information in the maritime cargo industry. Proceedings of the SAS Users Group International - SUGI 21st Annual Conference, pp. 970-974, Chicago, U.S.A., 1996.

Talks and Posters

1. Amaya, C. A., Medaglia, A. L., Mendoza, J. E., Velasco, N., & Villegas, J. G.. Avances en problemas de ruteo. Conferencia Plenaria. V Congreso Latinoamericano del Institute of Industrial Engineers (IIE)- Región Centro y Suramérica, Paipa, Colombia, Marzo 28-29, 2008.
2. Amaya, C. A., Medaglia, A. L., Mendoza, J. E., Velasco, N., Villegas, J. G. Ruteo de vehículos: casos de aplicación y software. II Encuentro Latinoamericano de Académicos de Ingeniería Industrial-ELAIN 2008, Lima, Perú, 2008 (videoconferencia).
3. Molano, A., Medaglia, A. L., and Sarmiento, O. L. Integrando SIG con optimización: modelo multiobjetivo para la localización de parques urbanos. Primera Jornada de Proyectos con Tecnologías de Sistemas de Información Geográfica. Universidad de los Andes (UASIG). Bogotá, Colombia.
4. Castro, H., Dávila, J. A., Guardo, E., Medaglia, A. L., Ramírez, M. A., y Walteros, J. L. JG2A: Un marco de trabajo orientado a objetos para el desarrollo de algoritmos genéticos en ambientes grid.. XIV Congreso Latino Ibero Americano de Investigación de Operaciones (CLAIO). Cartagena, Colombia. pp. 93-94. ISBN: 978 958 825283-4.
5. Molano, A., Medaglia, A. L., and Sarmiento, O. L. Modelo de localización de áreas urbanas para construir nuevos parques vecinales en Bogotá. XIV Congreso Latino Ibero Americano de Investigación de Operaciones (CLAIO). Cartagena, Colombia. pp. 116-116. ISBN: 978 958 825283-4.
6. Castro-Lacouture, D., Sefair, J. A., Flórez, L. y Medaglia, A. L. Modelo de optimización para la selección de materiales de construcción en edificios verdes en Colombia usando un sistema basado en LEED. XIV Congreso Latino Ibero Americano de Investigación de Operaciones (CLAIO). Cartagena, Colombia. pp. 126-126. ISBN: 978 958 825283-4.
7. González, J. J., Zuluaga, L. F., and Medaglia, A. L. A comparison of state-of-the-art techniques for robust portfolio allocation. XIV Congreso Latino Ibero Americano de Investigación de Operaciones (CLAIO). Cartagena, Colombia. pp. 51-51. ISBN: 978 958 825283-4.
8. Mendoza, J. E., Guéret, C., Medaglia, A. L., Velasco, N., and Villegas, J. G. JCW: an object-oriented framework for the rapid development of vehicle routing heuristics based on savings. XIV Congreso Latino Ibero Americano de Investigación de Operaciones (CLAIO). Cartagena, Colombia. pp. 60-60. ISBN: 978 958 825283-4.
9. Villegas, J. G., Medaglia, A. L., Mendoza, J. E., Prins, C., Prodhon, C. and, Velasco, N. A split-based framework for the vehicle routing problem. XIV Congreso Latino Ibero Americano de Investigación de Operaciones (CLAIO). Cartagena, Colombia. pp. 113-113. ISBN: 978 958 825283-4.
10. Mendoza, J. E., Castanier, B., Guéret, C., Medaglia, A. L., and Velasco, N. Construction heuristics for the multi-compartment vehicle routing problem with stochastic demands. XIV Congreso Latino Ibero Americano de Investigación de Operaciones (CLAIO). Cartagena, Colombia. pp. 113-113. ISBN: 978 958 825283-4.
11. Vargas, M. A., Sefair, J. A., Walteros, J. L., Medaglia, A. L., Rivera, L. Modelo de optimización para el problema de car pooling: una aplicación en Estrasburgo. XIV Congreso Latino Ibero Americano de Investigación de Operaciones (CLAIO). Cartagena, Colombia. pp. 66-66. ISBN: 978 958 825283-4.
12. Sefair, J. A., Medaglia, A. L. and Cohen, M.-d. Optimal scoring method: an approximation to ranking with multiple criteria. IIE Annual Conference and Expo, Vancouver, Canada, 2008.
13. Sefair, J. A., Mendez, C. Y. and Medaglia, A. L.. Mean-semivariance model for project selection: An illustrative example in the oil and gas industry. IIE Annual Conference and Expo, Vancouver, Canada, 2008.
14. Vargas, M. A., Sefair, J. A., Walteros, J. L., Medaglia, A. L. and Rivera, L. An optimization approach to car pooling: an application in Strasbourg (France). IIE Annual Conference and Expo, Vancouver, Canada, 2008.
15. Medaglia, A. L., Mendoza, J., Prins, C., Velasco, N. and Villegas, J. G. A split-based evolutionary framework for vehicle routing. IIE Annual Conference and Expo, Vancouver, Canada, 2008.
16. Molano, A. M., Medaglia, A. L. and Sarmiento, O. L. Integrating GIS with location models for siting urban parks. IIE Annual Conference and Expo, Vancouver, Canada, 2008.
17. Castro-Lacouture, D., Sefair, J., Florez, L., Medaglia, A. L.. Optimization model for the selection of materials using a LEED-based green building rating system in Colombia. Think Green Week. Brook Byers Institute for Sustainable Systems (ISS). Sustainability Poster Session. Georgia Institute of Technology. Atlanta, April 16, 2008.
18. Sefair, J. A. and Medaglia, A. L. Modelos de selección y ordenamiento de proyectos de inversión. Plenaria en el Seminario Nacional: Optimización de la Cadena de Valor. UIS, Bucaramanga, Colombia, 2007.
19. Mendoza, J. E., Medaglia, A. L. and Velasco, N.. Design and implementation of a decision support system for vehicle routing in a public utility. IIE Annual Conference and Expo, Nashville, U.S.A., 2007.
20. Gutiérrez, E., Medaglia, A. L., Takahashi, S. and Mejía, G.. A modeling framework and discrete-event based scheduler for flexible job shops. IIE Annual Conference and Expo, Nashville, U.S.A., 2007.
21. Castro, E., Sefair, J. and Medaglia, A. L.. SAPS: A University decision support system for campus expansion planning. Nashville, U.S.A., 2007.
22. Zarama, R., Medaglia, A. L. and Félix, R. H. Industrial Engineering perspectives in Latin America. Nashville, U.S.A., 2007.
23. Mendez, C. Y., Sefair, J. A. and Medaglia, A. L.. Selección de proyectos en la industria del petróleo: una aproximación a la semivarianza. XII Escuela Lationamericana de Verano en Investigación de Operaciones (ELAVIO), Petrópolis, Brazil, 2007.
24. Walteros, J. L., Riaño, G. and Medaglia, A. L.. Diseño de las rutas para un sistema de transporte masivo urbano. XII Escuela Lationamericana de Verano en Investigación de Operaciones (ELAVIO), Petrópolis, Brazil, 2007.
25. Mendoza, J. E., Medaglia, A. L. and Velasco, N.. Diseño de un sistema de apoyo a la decisión para el ruteo de vehículos en una empresa de servicios públicos. XII Escuela Lationamericana de Verano en Investigación de Operaciones (ELAVIO), Petrópolis, Brazil, 2007.
26. Gutierrez, E., Botero, R., Hernandez, J., Takahashi, S., and Medaglia, A. L.. Object-oriented modeling engine for scheduling systems. Seventeenth Annual Production and Operations Management Society (POMS) Conference, Boston, U.S.A., 2006.
27. Mejía, G., Gutiérrez, E., and Medaglia, A. L.. Integrating shop-floor modeling and a Petri-Net scheduler using an object-oriented modeling framework. Seventeenth Annual Production and Operations Management Society (POMS) Conference, Boston, U.S.A., 2006.
28. Gutierrez, E., Hernandez, J., Takahashi, S., Botero, R., Sarmiento, M. C., and Medaglia, A. L.. Motor de modelado para la programación de la producción. 3ra Conferencia Regional (Central and South America) del IIE, Bogotá, Colombia, 2006.
29. García, G., Medaglia, A. L., and Riaño, G. . The effect of distance approximations on vehicle routing in a grid-based city with numbered streets. Sponsored talk given at INFORMS Annual Meeting, San Francisco, U.S.A., 2005.
30. Rodríguez-Coca, D. M., Medaglia, A. L., and Villegas, J. G. . Design of a hospital waste management network in the Department of Boyacà (Colombia). Sponsored talk given at INFORMS Annual Meeting, San Francisco, U.S.A., 2005.
31. Aristeguieta, O., Bratvold, R., Begg, S., and Medaglia, A. L.. Improving oil and gas business performance through project portfolio optimization. Contributed talk given at INFORMS Annual Meeting, San Francisco, U.S.A., 2005.
32. Gutiérrez, E. and Medaglia, A. L.. MO-JGA: Una extensión de la herramienta JGA para problemas de optimización con múltiples objetivos: aplicación a un problema de localización de instalaciones. XI Escuela Lationamericana de Verano en Investigación de Operaciones. Villa de Leyva, Colombia, 2005.
33. Marentes, L. A., Medaglia, A. L., and Palacios F.. Aproximación con algoritmos evolutivos para el problema de selección de proyectos con restricciones lineales y variables binarias bajo ambientes de incertidumbre. XI Escuela Lationamericana de Verano en Investigación de Operaciones. Villa de Leyva, Colombia, 2005.
34. Castro, E. and Medaglia, A. L.. Heurística basada en programación entera binaria para el problema de asignación de salones en una universidad. XI Escuela Lationamericana de Verano en Investigación de Operaciones. Villa de Leyva, Colombia, 2005.
35. Santamaría, N., Medaglia, A. L., and Beltrán, F.. Análisis del problema de determinación del ganador en subastas de objetos divisibles. XI Escuela Lationamericana de Verano en Investigación de Operaciones. Villa de Leyva, Colombia, 2005.
36. Sefair, J. and Medaglia, A. L.. Aproximación a la selección y ordenamiento de proyectos bajo un enfoque de incertidumbre. XI Escuela Lationamericana de Verano en Investigación de Operaciones. Villa de Leyva, Colombia, 2005.
37. Sarmiento, O. L., Peñaranda, A., Medaglia, A. L., Aparicio, M. L., Barón, C., García, J. M., Ramírez, I. C., Rodríguez, J. H., and Perdomo, V.. Modelo de percepción del habla en niños colombianos post-implante coclear. Invited talk at Academia Nacional de Medicina. 2005.
38. Medaglia, A. L.. Componentes de ruteo (urbano): algunas experiencias en Bogotá. 2da Conferencia Regional del IIE, Bogotá, Colombia, 2005.
39. Medaglia, A. L., Mendieta, J. C., Sefair, J. A., and Hueth, D.. Hacia una metodología formal de selección y ordenamiento de proyectos de inversión (Towards a formal methodology for investment project selection and ordering). Plenary keynote speech given at 3rd International Congress on "Decisiones Efectivas, Nueva Tendencia de Gestión en la Excelencia Empresarial" (Effective decision making: a new management trend in entreprise excellence), Universidad Distrital Francisco José de Caldas, Bogotá, Colombia, 2004.
40. Medaglia, A. L., Graves, S. B., and Ringuest, J. L. A multiobjective evolutionary approach for linearly constrained project selection under uncertainty. Contributed talk given at CORS/INFORMS Joint International Meeting, Banff, Canadá, 2004.
41. Villegas, J. G., Palacios, F. and Medaglia, A. L.. Unveiling the efficient frontier of a biobjective (cost-coverage) unconstrained location problem. Contributed talk given at CORS/INFORMS Joint International Meeting, Banff, Canadá, 2004.
42. Medaglia, A. L., Mendieta, J. C., Sefair, J. A., and Hueth, D.. Selección y ordenamiento de proyectos en un plan de inversión (Project selection and timing model for optimal plan investment). Plenary keynote speech given at I Regional Congress of the Institute of Industrial Engineering (Region 16), Universidad Distrital Francisco José de Caldas, Bogotá, Colombia, 2004.
43. Arana, D. M., Medaglia, A. L., and Palacios F. Hacia una aproximación de la frontera eficiente para el problema de ruta mínima biobjetivo (Towards an approximation of the efficient frontier of the biobjective shortest path problem). Contributed talk given at III Congreso Colombiano - I Conferencia Andina de Investigación de Operaciones (CCIO-2004), Cartagena, Colombia, 2004.
44. Gutiérrez, E., Medaglia, A. L., Palacios , F., and Villegas, J. G. Un enfoque de algoritmos genéticos para un problema de localización de bodegas bi-objetivo con restricciones de capacidad (A genetic algorithm approach for the biobjective capacitated facility location problem). Contributed talk given at III Congreso Colombiano - I Conferencia Andina de Investigación de Operaciones (CCIO-2004), Cartagena, Colombia, 2004.
45. Gutiérrez, E., and Medaglia, A. L. JGA: Una herramienta genérica para la solución de problemas de optimización basada en algoritmos evolutivos (JGA: A generic tool for solving optimization problems based on evolutionary algorithms). Contributed talk given at III Congreso Colombiano - I Conferencia Andina de Investigación de Operaciones (CCIO-2004), Cartagena, Colombia, 2004.
46. Medaglia, A. L., Mendieta, J. C., Sefair, J. A., and Hueth, D.. Modelo de selección y ordenamiento de proyectos para la optimización de planes de inversión (Project selection and timing model for optimal plan investment). Contributed talk given at III Congreso Colombiano - I Conferencia Andina de Investigación de Operaciones (CCIO-2004), Cartagena, Colombia, 2004.
47. Santamaría, N., Beltrán, F., and Medaglia, A. L.. An algorithm for divisible object auctions. Contributed talk given at INFORMS 2003 Annual Meeting, Atlanta, U.S.A, 2003.
48. Medaglia, A. L., Kulkarni, R., Kelly, C. B., and Liao, Y. Web-enabled decision support systems. Invited talk given at INFORMS 2001 Annual Meeting, Miami, U.S.A, 2001.
49. Medaglia, A. L. and Blanco, E. E.. A decision support system for optimal ship routing in the maritime cargo industry. Contributed talk given at INFORMS 1996 Fall Meeting, Atlanta, U.S.A., 1996.
50. Medaglia, A. L. and Blanco, E. E.. Optimal ship routing. Talk given at XVIII System Engineering Workshop, Santiago, Chile, 1995.
51. Medaglia, A. L. and Pardo, G. E.. Binary integer programming model for menu planning at San Ignacio Hospital. National Contest of Best Theses - Expociencia 93, Bogotá D.C., Colombia, 1993.

Editorial Service

1. Journal of Industrial and Management Optimization. Associate editor and guest co-editor on May 2009 Special Issue on CLAIO/Uruguay (2006).
2. International Journal of Management Science and Engineering Management. Editorial board.
3. The Open Operational Research Journal. Editorial advisory board.
4. International Journal of Information Systems and Supply Chain Management (IJISSCM). Editorial review board.
5. Revista Ingeniería y Universidad . Editorial board.
6. Decision Sciences Journal . Ad-hoc reviewer.
7. Annals of Operations Research. Referee.
8. ASME Journal of Dynamic Systems, Measurement and Control. Referee.
9. Computational Statistics and Data Analysis. Referee.
10. Computers and Operations Research. Referee.
11. European Journal of Operational Research (EJOR). Referee.
12. Fuzzy Optimization and Decision Making (FODM). Referee.
13. IEEE Transactions on Systems, Man, & Cybernetics. Referee.
14. International Journal of Production Economics. Referee.
15. Journal of Applied Mathematics & Decision Sciences (JAMDS). Referee.
16. Journal of Global Optimization. Referee.
17. Journal of Heuristics. Referee.
18. Networks. Referee.
19. Journal of the Operational Research Society. Book reviewer.
20. The Engineering Economist. Referee.
21. Simulation Modelling Practice and Theory. Referee.
22. Handbook of Research in Nature Inspired Computing for Economy and Management, Jean-Phillipe Rennard (Ed.). Chapter reviewer.
23. 2009 IIE Annual (Miami) IERC Proceedings. Reviewer.

Professional Service

• Vicepresident, Association of Latin-Iberoamerican Operational Research Societies (ALIO). 2008-2010.
• Academic Committee - XV ELAVIO, Pacoti-CE (Serra de Guaramiranga), Brasil, Aug. 2 - 6, 2010
• Organizing Committee - ICPR Americas 2010, Bogotá, Colombia, July 21 - 23, 2010
• Program Committee - XLII Simpósio Brasileiro de Pesquisa Operacional (SBPO), Bento Gonçalves, Brasil, Aug. 30 - Sept. 3, 2010
• Program Committee - VI ALIO/EURO Workshop on Applied Combinatorial Optimization, Buenos Aires, Argentina, Dec. 15 - 17, 2008
• Guest lecturer - Minicurso Optimización multicriterio, XIII ELAVIO, Lima, Perú. 2008
• Comité Internacional, XIII ELAVIO, to be held in Lima, Perú. 2008.
• Secretary, Association of Latin-Iberoamerican Operational Research Societies (ALIO). 2006-2008.
• Regional Vice President for Central and South America (Region 16), Institute of Industrial Engineers, 2006-2008.
• IIE International Council, Institute of Industrial Engineers, 2006-2008.
• Chair of the Latin American Track, Institute of Industrial Engineers, IIE Annual Conference and Expo held in Nashville, TN (USA), 2007.
• Comitê de Apoio Internacional, XII ELAVIO, held in Itaipava, Brasil. 2007.
• Member of the Program Committee, XIII Congreso Latino-Iberoamericano de Investigación de Operaciones (CLAIO), held in Montevideo, Uruguay. 2006.
• Workshop co-chair, XI Latin American Summer Workshop on Operations Research (XI Escuela Latinoamericana de Verano en Investigación de Operaciones - ELAVIO), held in Villa de Leyva, Colombia. 2005.

Honors and Awards

• Co-advisor (with J. L. Walteros) of Nicolás Hoyos, 1st place in the 2010 IIE Uniandes Chapter Technical Paper Competition (Bogotá, Colombia) for the work titled "A column generation approach to steel cutting in ACESCO", 2010.
• Co-advisor (with N. Velasco) of Leonardo Lozano, 1st place in the 2009 IIE Uniandes Chapter Technical Paper Competition (Bogotá, Colombia) for the work titled "Generation of Pop-Rock Accompaniments Using Genetic Algorithms and Variable Neighborhood Search", 2009.
• Co-author (with A. Molano, O. L. Sarmiento and J. Sefair), 1st prize in the paper competition: "El papel de la planeación en el desarrollo colombiano", organized by the Departamento Nacional de Planeación-50 años (Bogotá, Colombia), 2008.
• Co-author (with J. A. Sefair, D. Castro-Lacouture, and L. Flórez) 2nd prize in the Sustainability Poster Session for the work titled "Optimization model for the selection of materials using a LEED-based green building rating system in Colombia". Brook Byers Institute for Sustainable Systems (ISS) of Georgia Tech (Atlanta, USA). 2008.
• Co-advisor (with O. L. Sarmiento) of Nathalie Baracaldo (Universidad de los Andes), 3rd place in the IV Regional Conference - IIE Region 16 (Central and South America) Technical Paper Competition, held at Universidad Javeriana, Bogotá (Colombia), 2007.
• Advisor of Carlos A. Pineda (Universidad de los Andes), 3rd place in the finals of IIE Technical Paper Competition, IIE Annual Conference, Orlando (USA), 2007.
• Advisor of Carlos A. Pineda (Universidad de los Andes), Winner of IIE Region 16 (Central and South America) Technical Paper Competition, held at Universidad de la Sabana, Bogotá (Colombia), 2007.
• Co-advisor of Fernán Pedraza, Best Paper Award in Wireless Networks and Military Applications, 2006 IEEE Systems and Information Engineering Design Symposium, U. of Virginia, Charlottesville, VA (USA), 2006.
• Advisor of Carlos A. Pineda, 3rd place on the IIE Technical Paper Competition, Orlando, FL, (USA), 2006.
• Listed in "Marquis Who's Who in the World", 23rd Edition, 2006
• Faculty Advisor of the IWANA group, Winner of the 10th IIE/Rockwell Software Student Simulation Competition, 2004
• Recipient of the Director’s Partnership Award from the (U.S.) National Textile Center, 1997
• Inducted member of the Omega Rho International Honor Society (Operations Research), 1997
• Recipient of the Colciencias Scholarship (Colombia), 1996-1999
• Best instructor in the Industrial Engineering Department at Universidad de los Andes (Colombia), 1996
• Recipient of the Colfuturo (Foundation for the Future of Colombia) Scholarship (Colombia), 1996-1998
• Recipient of the Merit Scholarship from Fulbright (Colombia), 1995
• Recipient of the Best Thesis Award in the Industrial Engineering Department at Pontificia Universidad Javeriana (Colombia), 1992

Affiliations

Professional Organizations

• INFORMS:

  Institute for Operations Research and the Management Sciences

• IIE:

  Institute of Industrial Engineers

• ACM:

  Association for Computing Machinery

• MCDM:

  International Society on Multiple Criteria Decision Making

• EU/ME:

  European Chapter on Metaheuristics

Research Groups

• Fuzzy and Neural Group at N.C. State University:

  Research group at N.C. State University directed by Drs. Shu-Cherng Fang and Henry L. W. Nuttle.

• Center for Optimization and Applied Probability (COPA):

  Research group at Universidad de los Andes.

Links

Universidad de los Andes

• Universidad de los Andes
• School of Engineering, Universidad de los Andes
• Industrial Engineering Department, Universidad de los Andes
• Center for Optimization and Applied Probability (COPA)
• Institute of Industrial Engineers/Uniandes, Student Chapter

Created: October 12th, 2002

Last modified: June 23, 2010 (14:30, GMT - 5h)