Francisco Ruiz

Research

Research Group	Research Interests	Publications
Conferences	Invited Talks	Projects and contracts

RESEARCH GROUP

Nearly all my research activity has taken place in the frame Multiple Criteria Decision Making (MCDM), in the Reasearch Group on Multicriteria Decision Making of the University of Málaga.

Multiple Criteria Decision Making is the branch of Operational Research that studies the development and application of mathematical techniques for ading decision making processes. When the set of possible decisions can be mathemacally defined through a series of inequelities, and he criteria can take the form of objectives represented by functions, then we are facing a Multiobjective Programming problem.

The growing interest of the international scientific community in the problem of sustainability, together with its intrinsic multicriteria nature, made us start looking for applications in this field. Therefore, these are the main reserach themes of our group.

For further information about these topics, go to the group's webpage, by clicking on the logo, or to any of the links listed in the corresponding section.

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RESEARCH INTERESTS

My current research and interest topics are:

Interactive Mwhtods in Multiobjective Programming.
Multicriteria Techniques in Environmental Policy and Ecological Economy.
Desarrollo de algoritmos de resolución de problemas multiobjetivo.
Software development.
Meta-GP.
Real applications of multiobjective techniques in several fields:

- Electricity generation systems,

- Design of synthetic sustainability indicators,

- Portfolio selection.

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PUBLICATIONS

a) Papers in scientific journals

Caballero, R., Rey, L. and Ruiz, F. (1996). Determination of Satisfying and Efficient Solutions in Convex Multi-Objective Programming. Optimization, 37:125-137.
Caballero, R., Rey, L. and Ruiz, F. (1998). Lexicographic Improvement of the Target Values in Convex Goal Programming. European Journal of Operational Research, 107:644-655.
Caballero, R., Gómez, T., González, M., Rey, L. and Ruiz, F. (1998). Goal Programming with Dynamic Goals. Journal of Multi-Criteria Decision Analysis, 7:217-229.
Gómez, T., González, M., Luque, M., Miguel, F. and Ruiz, F. (2001). Multiple Objective Decomposition-Coordination Methods for Hierarchical Organizations. European Journal of Operational Research, 133:323-341.
Rodríguez, M.V., Caballero, R., Ruiz, F. and Romero, C. (2002). Meta Goal Programming. European Journal of Operational Research, 136:422-429.
Caballero, R., Gómez, T., Luque, M., Miguel, F. and Ruiz, F. (2002). Hierarchical Generation of Pareto Optimal Solutions in Large Scale Multiobjective Systems. Computers and Operations Research, 29:1537-1558.
Arenas, M.M., Bilbao, A., Caballero, R., Gómez, T., Rodríguez Uría, M.V. and Ruiz, F. (2002). Analysis via Goal Programming of the Minimum Achievable Stay in Surgical Waiting Lists. Computers and Operations Research, 29:387-396.
Caballero, R., Luque, M., Molina, J., y Ruiz, F. (2002). Programación Multiobjetivo Interactiva. RECTA, 1:123-148.
Caballero, R., Luque, M., Molina, J., and Ruiz, F. (2002). PROMOIN: an Interactive System for Multiobjective Programming. International Journal of Information Technology and Decision Making, 1:635-656.
Caballero, R., Luque, M., Molina, J., and Ruiz, F. (2005). MOPEN: A Computational Package for Linear Multiobjective and Goal Programming Problems. Decision Support Systems, 41:160-175.
Caballero, R., Ruiz, F., Rodríguez, M.V. and Romero, R. (2006). Interactive Meta-Goal Programming. European Journal of Operational Research, 175:135-154.
Luque, M., Caballero, R., Molina, J. and Ruiz, F. (2007). Equivalent Information for Multiobjective Interactive Procedures. Management Science, 53:125-134.
Ruiz, F., Luque, M., Miguel, F. and Muñoz, M.M. (2008). An Additive Achievement Scalarizing Function for Multiobjective Programming Problems. European Journal of Operational Research, 188:683-694.
Luque, M., Miettinen, K., Eskelinen, P. and Ruiz, F. (2009). Incorporating Preference Information in Interactive Reference Point Methods for Multiobjective Optimization. Omega, 37:450-462.
Ruiz, F., Rey, L., Muñoz, M.M. (2009). A Graphical Characterization of the Efficient Set for Convex Multiobjective Problems. Annals of Operations Research, 164:115-126.
Muñoz, M.M. and Ruiz, F. (2009). ISTMO: An Interval Reference Point-Based Method for Stochastic Multiobjective Programming Problems. European Journal of Operational Research, 197:25-35.
Ruiz, F., Luque, M. and Cabello, J.M. (2009). A Classification of the Weighting Schemes in Reference Point Procedures for Multiobjective Programming. Journal of the Operational Research Society, 60:544-553.
Miguel, F., Gómez, T., Luque, M., Ruiz, F., Caballero, R. (2009). A Decomposition-Coordination Method for Complex Multi-Objective Systems. Asia-Pacific Journal of Operational Research, 26:735-757.
Cabello, J.M., Luque, M., Ruiz, F. (2009). Towards a Unified Global Interactive Multiobjective Decision System. Cybernetics and Information Technologies, 9(4): 4 – 17.
Caballero, R., Gómez, T., Ruiz, F. (2009). Goal Programming: Realistic Targets for the Near Future. Journal of Multi-Criteria Decision Analysis,16: 79-110.
Muñoz, M.M., Luque, M. and Ruiz, F. (2010). INTEREST: A Reference-Point-based Interactive Procedure for Stochastic Multiobjective Programming Problems. OR Spectrum, 32:195-210.
Marcenaro, O.D., Luque, M., Ruiz, F. (2010). An Application of Multiobjective Programming to the Study of Workers' Satisfaction in the Spanish Labour Market.
European Journal of Operational Research, 203:430-443.
Luque, M., Ruiz, F., Steuer, R.E. (2010). Modified Interactive Chebyshev Algorithm (MICA) for Convex Multiobjective Programming. European Journal of Operational Research, 204: 557-564.
Miettinen, K., Eskelinen, P., Ruiz, F., Luque, M. (2010). NAUTILUS Method: an Interactive Technique in Multiobjective Optimization based on the Nadir Point. European Journal of Operational Research, 206: 426-434.
Ruiz, F., Cabello, J.M., Luque, M. (2011). An application of reference point techniques to the calculation of synthetic sustainability indicators. Journal of the Operational Research Society, 62: 189-197.
Luque, M., Ruiz, F., Miettinen, K. (2011). Global Formulation for Interactive Multiobjective Optimization. OR Spectrum, 33: 27-48.
Cabello, J.M, Cejudo, J.M., Luque, M., Ruiz, F., Deb, K., Tewari, R. (2011). Optimization of the Size of a Solar Thermal Electricity Plant by Means of Genetic Algorithms. Renewable Energy, 36: 3146-3153.
Luque, M., Miettinen, K., Ruiz, A.B., Ruiz, F., (2012). A Two-Slope Achievement Scalarizing Function for Interactive Multiobjective Optimization. Computers & Operations Research, 39: 1673–1681.
Navarro, E., Tejada, M., Almeida, F., Cabello, J.M., Cortés, R., Delgado, J., Fernández, F., Gutiérrez, G., Luque, M., Málvarez, G., Marcenaro, O., Navas, F., Ruiz, F., Ruiz, J., Solís, F. (2012). Carrying capacity assessment for tourist destinations. Methodology for the creation of synthetic indicators applied in a coastal area. Tourism Management 33: 1337-1346.
Ruiz, F., Luque, M., Miettinen, K. (2012). Improving the Computational Efficiency in a Global Formulation (GLIDE) for Interactive Multiobjective Optimization. Annals of Operations Research, 197: 47-70.
Luque, M., Ruiz, F., Cabello, J.M, (2012). A synchronous Reference Point based interactive method for Stochastic Multiobjective Programming. OR Spectrum, 34: 763–784.
Deb, K., Ruiz, F., Luque, M., Tewari, R., Cabello, J.M., Cejudo, J.M. (2012). On the Sizing of a Solar Thermal Electricity Plant for Multiple Objectives Using Evolutionary Optimization. Applied Soft Computing, 12: 3300–3311.
Cabello, J.M., Luque, M., Miguel, F., Ruiz, A.B., Ruiz, F., (2014). A Multiobjective Interactive Approach to Determine the Optimal Electricity Mix in Andalucía (Spain). TOP, 22: 109-127.
Cabello, J.M., Navarro, E., Prieto, F., Rodríguez, B., Ruiz, F. (2014). Multicriteria Development of Synthetic Indicators of the Environmental Profile of the Spanish Regions. Ecological Indicators, 39: 10-23.
Cabello, J.M., Ruiz, F., Pérez, B., Méndez, P. (2014). Synthetic Indicators of Mutual Funds’ Environmental Responsibility: An Application of the Reference Point Method. European Journal of Operational Research, 236: 313-325.
Cabello, J.M., Ruiz, F., Méndez, P., Pérez, B. (2014). Interactive Socially Responsible Portfolio Selection: an application to the Spanish Stock Market. Information Systems and Operational Research, 52(3): 126 – 137.
Miettinen, K., Podkopaev, D., Ruiz, F., Luque, M. (2015). A new preference handling technique for interactive multiobjective optimization without trading-off. Journal of Global Optimization, 63: 633 – 652.
Ruiz, A.B., Sindhya, K., Miettinen, K., Ruiz, F., Luque, M. (2015). E-NAUTILUS: A decision support system for complex multiobjective optimization problems based on the NAUTILUS method. European Journal of Operational Research, 246: 218 – 231.
Ruiz, A.B., Luque, M., Ruiz, F., Saborido, R. (2015). A Combined Interactive Procedure using Preference-based Evolutionary Multiobjective Optimization. Application to the Efficiency Improvement of the Auxiliary Services of Power Plants. Expert Systems with Applications, 42(21): 7466 – 7482.
Cabello, J.M., Galguera, L., Ruiz, F. (2015). Maximum Potential Score (MPS): An Operating Model for a Successful Customer-Focused Strategy. RECT@, 16: 105 – 115.
Miettinen, K., Ruiz, F. (2016). NAUTILUS Framework: Towards Trade-off-Free Interaction in Multiobjective Programming. Journal of Business Economics, 86: 5 – 21.
Caballero, R., Romero, C., Ruiz, F. (2016). Multiple Criteria Decision Making and Economics: An Introduction (Edited Special Issue). Annals of Operations Research, 245: 1 - 5.
Ouenniche, J., Bouslah, K., Cabello, J.M., Ruiz, F. (2018). A New Classifier based on The Reference Point Method with Application in Bankruptcy Prediction. Journal of the Operational Research Society, 69(10): 1653 – 1660.
Ruiz, F., Cabello, J.M., Pérez, B. (2018). Building Ease-of-Doing-Business Synthetic Indicators using a Double Reference Point Approach. Technological Forecasting and Social Change, 131: 130 - 140.
Clímaco, J., Romero, C., Ruiz, F. (2018). Preface to the Special Issue on Multiple Criteria Decision Making: Current Challengers and Future Trends. (Edited Special Issue). International Transactions in Operational Research, 25: 759 – 761.
El Gibari, S., Gómez, T., Ruiz, F. (2018). Evaluating University Performance using Reference Point based Composite Indicators. Journal of Informetrics, 12: 1235 – 1250.
Cabello, J.M., Navarro, E., Rodríguez, B., Thiel, D., Ruiz, F. (2019). Dual weak–strong sustainability synthetic indicators using a double reference point scheme: the case of Andalucía, Spain. Operational Research, An International Journal, 19: 757 – 782.
El Gibari, S., Gómez, T., Ruiz, F. (2019). Building composite indicators using multicriteria methods: a review. Journal of Business Economics, 89: 1 - 24.
Ruiz, A.B., Ruiz, F., Miettinen, K., Delgado, L., Ojalehto, V. (2019). NAUTILUS Navigator: free search interactive multiobjective optimization without trading-off. Journal of Global Optimization 74: 213 - 231.
Miettinen, K., Ruiz, F. (2019). Preface on the Special Issue Global Optimization with Multiple Criteria: Theory, Methods and Applications. Journal of Global Optimization, 75: 1 – 2.
Benítez_Fernández, A., Ruiz, F. (2020). A Meta-Goal Programming Approach to Cardinal Preferences Aggregation in Multicriteria Problems. OMEGA: The International Journal of Management Science, 94: 102045.
Ruiz, F., El Gibari, T., Cabello, J.M., Gómez, T. (2020). MRP-WSCI: Multiple Reference Point based Weak and Strong Composite Indicators. OMEGA: The International Journal of Management Science, 95: 102060.
González, A.I., Rubio, M., Ruiz, F. (2020). Goal programming to evaluate the profile of the most profitable insurers: an application to the Spanish insurance industry. International Transactions in Operational Research, 27: 2976 – 3006.
García-Bernabeu, A., Cabello, J.M., Ruiz, F. (2020). A Multi-Criteria Reference Point Based Approach for Assessing Regional Innovation Performance in Spain. Mathematics, 8(5): 797.
Cabello, J.M., Navarro, E., Thiel, D., Rodríguez, B., Ruiz, F. (2020). Assessing environmental sustainability by the double reference point methodology: the case of the provinces of Andalusia (Spain). International Journal of Sustainable Development & World Ecology, 28: 4 – 17.
Cabello, J.M., Ruiz, F., Pérez-Gladish, B. (2021). An Alternative Aggregation Process for Composite Indexes: An Application to the Heritage Foundation Economic Freedom Index. Social Indicators Research, 153: 443 - 467.
Ruiz, F., Cabello, J.M. (2021). MRP-PCI: A multiple reference point based partially compensatory composite indicator for sustainability assessment. Sustainability, 13(3): 1261.
Afsar, B., Miettinen, K., Ruiz, F. (2021). Assessing the Performance of Interactive Multiobjective Optimization Methods: A Survey. ACM Computing Surveys, 54(4): 85.
El Gibari, S., Cabello, J.M., Gómez, T., Ruiz, F. (2021). Composite indicators as decision making tools: the joint use of compensatory and non-compensatory schemes. International Journal of Information Technology and Decision Making, 20(3): 847 - 879.
El Gibari, S., Perez-Esparrells, C., Gomez, T., Ruiz, F. (2021). Analyzing the Impact of Spanish University Funding Policies on the Evolution of Their Performance: A Multi-Criteria Approach. Mathematics, 9: 1626.
Damian, I.M., Navarro, E., Ruiz, F. (2022). Stakeholders' Perception of the Sustainability of a Tourism Destination: A Methodological Framework to find out Relationships and Similarity of Opinions. Tourism Review, 77(2): 515 – 531.
Ricciolini, E., Rocchi, L., Cardinali, M., Paolotti, L. Ruiz, F. Cabello, J.M., Boggia, A., (2022). Assessing Progress Towards SDGs Implementation Using Multiple Reference Point Based Multicriteria Methods: The Case Study of the European Countries. Social Indicators Research, 162: 1233 – 1260.
El Gibari, S., Gómez, T., Ruiz, F., (2022). Combining reference point based composite indicators with data envelopment analysis: application to the assessment of universities. Scientometrics, 127: 4363-4395.
García-Bernabéu, A., Cabello, J.M., Ruiz, F. (2022). A Reference Point‑Based Proposal to Build Regional Quality of Life Composite Indicators. Social Indicators Research, 164: 11-30.
Boggia, A., Fagioli, F.F., Paolotti, L., Ruiz, F., Cabello, J.M., Rocchi, L., (2023). Using accounting dataset for agricultural sustainability assessment through a multi-criteria approach: an Italian case study. International Transactions in Operational Research, 30: 2071-2093.
Damian, I.M., Navarro, E., Ruiz, F. (2023). Involving stakeholders in the evaluation of the sustainability of a tourist destination: a novel comprehensive approach. Journal of Sustainable Tourism, 31(7): 1631-1650.
González-Fernández, A.I., Rubio-Misas, M., Ruiz, F., (2023). Multi-objective reference point techniques to optimize profitability, growth, and risk in the non-life insurance industry: international analysis. International Transactions in Operational Research, 30: 2546-2570.
Asfar, B., Silvennionen, J., Misitano, G., Ruiz, F., Ruiz, A.B., Miettinen, K., (2023). Designing Empirical Experiments to Compare Interactive Multiobjective Optimization Methods. Journal of the Operational Research Society, 74(11): 2327-2338.
Peregrina, M.I., Ruiz, F., El Gibari, S. (2023). The evolution of eco-innovation and its impact on the political, social, and environmental spheres in the period 1996-2022: state of the art and bibliometric study. DYNA, 90(228): 140-151.
de Castro-Pardo, M., Cabello, J.M., Martín, J.M., Ruiz, F., (2023). A multi reference point based index to assess and monitor European water policies from a sustainability approach. Socio-Economic Planning Sciences, 89: 101433.
Ricciolini, E., Rocchi, L., Gennari, N., Ottaviani, A., Ruiz, F., Boggia, A. (2024). Sustainability of European agri‑food supply chain using MRP‑PCI multicriteria analysis method. Agricultural and Food Economics, to appear.
Afsar, B., Silvennoinen, J., Ruiz, F., Ruiz, A.B., Misitano, G., Miettinen, K. (2024). An experimental design for comparing interactive methods based on their desirable properties. Annals of Operations Research, to appear.

b) Edited books

Caballero, R., Ruiz, F. and Steuer, R.E. (1997). Advances in Multiple Objective and Goal Programming. Springer-Verlag. Heidelberg.

c) Book chapters

Caballero, R., Rey L., Ruiz, F. (1996). A Graphic Search based on Active Sets for Nonlinear Convex Multiple Objective Programming with Linear Constraints. In Tamiz, M. (Ed.) Multi-Objective Programming and Goal Programming. Theories and Applications. Springer-Verlag. London. pp. 58 – 73.
Caballero, R., Rey, L, Ruiz, F., González, M. (1997). An Algorithmic Package for the Resolution and Analysis of Convex Multiple Objective Problems. En Fandel, G., Gal, T (Eds.) Multiple Criteria Decision Making. Springer-Verlag . Berlin. pp. 275 – 284.
Caballero, R., Gómez, T., González, M. Rey, L., Ruiz, F. (1997). An Algorithmic Package for the Solution of Dynamic Multiobjective Problems. In Caballero, R., Ruiz, F., Steuer, R. (Eds.) Advances in Multiple Objective and Goal Programming. Springer-Verlag. Heidelberg. pp. 265 – 273.
Ruiz, F., Caballero, R., Gómez, T., González, M., Rey, L. (1998). The Static Approach to Quadratic Dynamic Goal Programming. In Stewart, T. J., van der Honert, R. C. (Eds.) Trends in Multicriteria Decision Making. Springer-Verlag. Heidelberg. pp. 138 – 148.
Caballero, R., Gómez, T., González, M., Rey, L., Ruiz, F. (1998). Equilibrium Policies among University Departments. In Girón, F. J. (Ed.) Applied Decision Analysis. Kluwer Academic Publishers. Massachussets. pp. 209 – 221.
Caballero, R., Cabello, J.M., Cano, A., Ruiz, F. (2000). Portfolio Selection via Goal Programming. In Bonilla, M., Casasús, T., Sala, R. (Eds.) Financial Modelling. Springer-Verlag. Heidelberg. pp. 79 – 92.
Martín, J.J., López del Amo, M.P., Caballero, R., Gómez, T., Molina, J., Ruiz, F. (2000). A Goal Programming Scheme to Determine the Budget Assignment among the Hospitals of a Sanitary System. In Zanakis, S.H., Doukidis, G., Zopounidis, C. (Eds.) Recent Developments and Applications in Decision Making. Kluwer Academic Publishers. Boston. pp. 459 – 474.
Caballero, R., González, M., Hernández, M., Luque, M., Molina, J., Ruiz, F. (2001). A Decision Model, via Integer Goal Programming, for Hiring and Promoting Staff in the Departments of a University. In Koksalan, M. Zionts, S (Eds.). Multiple Criteria Decision Making in the New Millennium. Springer-Verlag. Boston. pp. 403 – 414.
Caballero, R., Gómez, T., López del Amo, M.P., Luque, M., Martín, J., Molina, J., Ruiz, F. (2002). Using Interactive Multiple Objective Methods to Determine the Budget Assignment to the Hospitals of a Sanitary System. In Trzaskalik, T. (Ed.). Multiobjective and Goal Programming. Springer-Verlag. Heidelberg. pp. 209 – 220.
Miettinen, K., Ruiz, F., Wierzbicki, A.P. (2008). Introduction to Multiobjective Optimization: Interactive Approaches. In Branke, J., Deb, K., Miettinen, K., Slowinski, R. (Eds.) Multiobjective Optimization: Interactive and Evolutionary Approaches. Springer-Verlag. pp. 27 – 58.
Belton, V., Greco, S., Eskelinen, P., Molina, J., Ruiz, F., Slowinski, R. (2008). Interactive Multiobjective Optimization from a Learning Perspective. In Branke, J., Deb, K., Miettinen, K., Slowinski, R. (Eds.) Multiobjective Optimization: Interactive and Evolutionary Approaches. Springer-Verlag. pp. 405 – 434.
Miettinen, K., Eskelinen, P., Luque, M., Ruiz, F. (2009). On the Use of Preferential Weights in Interactive Reference Point Based Methods. In Barichard, V., Ehrgott, M., Gandibleux, X. y T’Kindt, V. (Eds.) Multiobjective Programming and Goal Programming. Springer-Verlag. Heidelberg. pp. 211 - 220.
Cabello, J.M., Cejudo, J.M., Luque, M., Ruiz, F., Deb, K., Tewari, R. (2009). Optimization of the Sizing of a Solar Thermal Electricity Plant: Mathematical Programming Versus Genetic Algorithms. In Proceedings of the Congress on Evolutionary Computation (CEC-2009). IEEE Press. Piscatway, NJ. pp. 1193 – 1200.
Méndez-Rodríguez, P., Pérez-Gladish, B., Cabello, J.M., Ruiz, F. (2015). Portfolio Selection with SRI Synthetic Indicators: A Reference Point Method Approach. In Ballestero, E., García-Bernabeu, A., Pérez-Gladish, B. (Eds.) Socially Responsible Investment. Springer-Verlag. Heidelberg. pp. 277 – 297.
Méndez-Rodríguez, P., Pérez-Gladish, B., Cabello, J.M., Ruiz, F. (2015). Mutual Funds’ Socially Responsible Portfolio Selection with Fuzzy Data. In Al-Shammari, M., Masri H. (Eds). Multiple Criteria Decision Making in Finance, Insurance and Investment. Springer-Verlag, Heidelberg. pp. 229 – 247.

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CONFERENCES

I have presented 87 communications in international conferences. I usually attend the conferences of the MOPGP series, and the conferences of the Internatinal Society on Multi Criteria Decision Making (MCDM). The communications presented during the last years are:

Ruiz, F., Cabello, J.M., Méndez, P., Pérez, B. Synthetic Indicators for Investment Country Selection. The International Conference on Multidimensional Finance, Insurance and Investment, ICMFII 2016. Alcoy (Spain). June 2016.
Delgado-Antequera, L., Ruiz, F., Caballero, R., Martí, R. A heuristic for a bi-objective large scale waste collection problem. VeRoLog 2017. Amsterdam (The Netherlands), July 2017.
El Gibari, S., Gómez, T., Ruiz, F. Evaluating university performance using Reference Point Based Synthetic Indicators. The case of Andalucía (Spain). 12th International Conference on Multiple Objective Programming and Goal Programming (MOPGP2017). Metz (France), October 2017.
Delgado-Antequera, L., Ruiz, F., Pérez, F., Caballero, R. A hybrid metaheuristic to approximate the Pareto Front of a waste collection problem. 12th International Conference on Multiple Objective Programming and Goal Programming (MOPGP2017). Metz (France), October 2017.
El Gibari, S., Ruiz, F., Cabello, J.M., Gómez, T., A Comparison of the MRP-WES Method with other MCDM methods based Synthetic Indicators. 29th European Conference on Operational Research, EURO2018. Valencia (Spain), July 2018.
El Gibari, S., Ruiz, F., Cabello, J.M., Gómez, T., MRP-WSCI: Multiple Reference Point based Weak and Strong Composite Indicators. 25th International Conference on Multiple Criteria Decision Making, MCDM 2019. Istanbul (Turkey), June 2019.
Miettinen, K., Ruiz, F., Afsar, B., How to Compare Interactive Multiobjective Optimization Methods?. 25th International Conference on Multiple Criteria Decision Making, MCDM 2019. Istanbul (Turkey), June 2019.
El Gibari, S., Ruiz, F., Cabello, J.M., Gómez, T., Constructing the EU-Regional Social Progress Index using the Multiple Reference Point Weak and Strong Composite Indicator (MRP-WSCI). The 13th International Conference on Multiple Objective Programming and Goal Programming (MOPGP2019). Marrakech (Morocco), October 2019.
Delgado, L., Ruiz, F., Caballero, R., Gémar, G., A real waste collection problem. An interactive methodology to solve it from a multiobjective perspective. The 13th International Conference on Multiple Objective Programming and Goal Programming (MOPGP2019). Marrakech (Morocco), October 2019.
Ricciolini, E., Boggia, A, Paolotti, L., Rocchi, L., Ruiz, F., Cabello, J. M., Cardinali, M., Assessing progress towards SDGs implementation using the MRP-WSCI AND MRP-PCI multicriteria methods. The case study of the European countries. The Eighth Annual International Conference on Sustainable Development (ICSD 2020). Rome (Italy), September 2020.
Delgado-Antequera, L., Ruiz, F., Gemar, G., Caballero, R. Solving a real waste collection problem with multiple criteria designing an interactive method defined within a graphical user interface. 9th International Workshop on Multiple Criteria Decision Making, Katowice (Poland), March 2021.
El Gibari, S.; Cabello, J.M.; Gómez, T.; Ruiz, F. Composite indicators as decision making tools: the joint use of compensatory and non-compensatory schemes. 31st European Conference on Operational Research (EURO), Athens (Greece), July 2021.
Delgado Antequera, L. Ruiz, F. Gémar, G. Caballero, R. Finding the adequate solution for a real waste collection problem using an interactive method. 31st European Conference on Operational Research (EURO), Athens (Greece), July 2021.
El Gibari, S.; Cabello, J.M.; Gómez, T.; Ruiz, F. Composite indicators as decision making tools: the joint use of compensatory and non-compensatory schemes. 14th International Conference on Multiple Objective Programming and Goal Programming (MOPGP). Online, December 2021.
Ruiz, A.B., Ruiz, F., González, S., Luque, M., Fernández, P. Sustainability Assessment of European Countries through the Use of Multiple Criteria Decision-Making and Econometric Techniques. 26th International Conference on Multiple Criteria Decision Making (MCDM2022). Portsmouth (UK), June-July 2022.
González, S., Ruiz, A.B., Ruiz, F., Luque, M., Fernández, P. Quantitative techniques to measure the sustainability in European countries. XLVII International Conference on Regional Science, Granada, October 2022.
El Gibari, S., Gómez, T., Ruiz, F. Analysing efficiency and performance universities by combining composite indicators and Data envelopment analysis. XXXVI International Conference ASEPELT: Inequality, poverty exclusion and policy implications for a better world. Évora (Portugal), July 2023.

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INVITED TALKS

An Application of Dynamic Multiple Objective Programming to the Budget Assignment among University Departments. (Invited communication). Conference on Applications of Operations Research. Lodz (Poland). 1996.
An Application of Nonlinear Goal Programming to Hospital Management. (Invited communication). 3rd Conference on Operations Research. Havana (Cuba). 1997.
Resolution of Linear Fractional Goal Programming Problems. (Invited communication). Preferences Modelling and Risk’03. Ustron (Poland). 2003.
Using Interactive Multiple Objective Methods to Determine the Budget Assignment to the Hospitals of a Sanitary System (invited talk). Akademia Ekonomiczna Katowice (Poland). 2003.
A Decision Model, via Integer Goal Programming, to Hire and Promote Staff in the Departments of a University (invited talk). Akademia Ekonomiczna Katowice (Poland), 2003.
Interactive Methods for Multiobjective Programming Problems (invited seminar). University of Oviedo (Spain). 2005.
Goal Programming: Realistic Targets for the Near Future (plenary session). The 7th International Multiple Objective Programming and Goal Programming Conference, MOPGP’06. Tours (France). 2006.
Graphical Representation on the Decision Space of the Efficient Set for Convex Multiobjective Problems. (Invited communication). 21st European Conference on Operational Research, EURO XXI. Reykjavik (Island). 2006.
Applying Interactive Multiobjective Techniques to Real Problems: The System Promoin and two Applications (invited seminar). The University of Manchester (United Kingdom). 2006.
The Role of the Weights in Reference Point Based Interactive Methods (invited talk). University of Jyväskylä (Finland). 2007.
A Reference Point Based Approach to the Calculation of Synthetic Sustainability Indicators (invited talk). Helsinki School of Economics (Finland). 2007.
The Role of the Weights in Reference Point Based Interactive Methods. (Invited communication). VI International Conference on Decision Support for Telecommunications and Information Society. Warsaw (Poland). 2007.
ISTMO: An Interval Reference-Point-Based Method for Stochastic Multiobjective Programming Problems. (Invited communication). International Workshop on Operational Research, IWOR2008. Madrid. 2008.
Basic Concepts of Multiobjective Optimization. Meta-Goal Programming. A Reference Point based Approach to the Calculation of Synthetic Sustainability Indicators (invited seminar). Bulgarian Academy of Sciences. Sofia (Bulgaria). 2008.
A Multiobjective Interactive Approach to Determine the Optimal Electricity Mix of Andalucía (invited talk). University of Jyväskylä (Finland). 2008.
Hybridizing Multi-Objective Interactive Techniques. Some Applications to the Electricity Generation Industry. Plenary Talk. 4th International Conference on Operations Research and Enterprise Systems (ICORES2015). Lisbon (Portugal), January, 2015.
Global Multi-Objective Interactive Formulations and Systems. Some Applications. Invited Seminar. National Taipei University. Taipei, Taiwan, October, 2015.
On the Construction of Synthetic Indicators using Reference Point Approaches. Some Applications. Invited Seminar. Tamkang University. Taipei, Taiwan, October, 2015.
Hybridizing Interactive Multiobjective and EMO Techniques. Some Applications. Plenary Talk. 2015 Annual Meeting of the Operations Research Society of Taiwan. Taipei, Taiwan, October, 2015.
Determination of Synthetic Indicators using a Double Reference Point Multicriteria Scheme: Some Applications. Invited Seminar. University of Edinburgh, October, 2016.
A Meta-Goal Programming Approach to Cardinal Preference Aggregation. Invited Seminar. University of Jyväskylä, September, 2017.
On Building Synthetic Indicators using Reference Point Techniques: Approaches, Reflections and Applications. Invited Seminar. University of Jyväskylä, October, 2017.
Building reference point based composite indicators with different compensability levels: some reflections. (El Gibari, S.; Cabello, J.M.; Gómez, T.; Ruiz, F.). Seminario Invitado. Competence Centre on Composite Indicators and Scoreboards (COIN) Webinars, JRC Ispra, online, May 2021.
Multiple Reference Point Composite Indicators: Further Developments and Applications. (El Gibari, S.; Cabello, J.M.; Gómez, T.; Ruiz, F.). Invited Seminar. University of Jyväskylä (Finland). October, 2022.
Hybridizing Interactive Multiobjective methods: Past Experiences and Future Trends. (Ruiz, F.). Invited Talk in the Forum of the Future of Interactive Multiobjective Optimization. University of Jyvaskyla (Finland). June 2023.
Some Experiences with Goal Programming: the Origins and Latest Contributions. Invited Plenary. The 15th International Conference on Multiple Objective Programming and Goal Programming, MOPGP2023. Izmir (Turkey). October 2023.

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PROJECTS AND CONTRACTS

I have participated in a great number of research projects:

4 projects financed by the University of Málaga,
11 projects financed by the Regional Government of Andalucía,
11 projects financed by the Spanish Ministry of Education and Science,
1 project financed by the Regional Government of Madrid,
1 project financed by the Spanish Ministry of Health,
2 projects financed by the European Union (ERDF).

Since our research group was born, I have participated in the following research projects and contracts:

Interactive Multiobjective Techniques in Ecological Economy and Environmental Policy. (Main Researcher). PAI Group, financed on a yearly basis by the Regional Ministry of Innovation, Science and Enterprises of Andalucía. We have been financed in years 2004-2014.
Energy and Environment: Multicriteria Analysis and Subject Design. (Main Researcher). Financed by the Regional Ministry of Environment of Andalucía. 2005-2006.
Direct Steam Genreration at more than 500º C (Solar Vapor 500). Financed por Endesa Generación, S.L. 2007-2008.
Development of an Integral Interactive Decision Making System. Applications in Ecological Economy and Environmental Policy. (Main Researcher). Financed by the Spanish Ministry of Education and Science. 2007-2009.
Multiobjective Programming: Interactive Methods, Software and Applications. (Main Researcher). International Complementary Action financed by the Spanish Ministry of Education and Science. 2007-2009.
Optimization of Auxiliary Systems of Thermal Centrals OSA. Financed by Endesa Generación, S.L. 2009.
Determination of Sustainability Indicators for Andalucia, using multicriteria reference points methods. (Main Researcher). Excellence Research Project, financed by the Regional Ministry of Andalucia. 2010-2012.
Reference Point Interactive Methods. Advanced Sustainability Indicators in Spain. (Main Researcher). Financed by the Spanish Ministry of Education and Science. 2010-2010.
Optimal design and operation of District Heatingcooling nets, applied to the residential and hotel sectors. Excellence Research Project, financed by the Regional Ministry of Andalucia. 2010-2012.
Interactive Reference Point Based Multiobjective Programming. Applications to Sustainability and Climate Change in Spain. Financed by the Spanish Ministry of Education and Science. 2011-2013.
SIPE - Informatic Predictive Business System. Financed by Novasoft Ingeniera S.L., as a part of the R+D+I Grant Project of Corporación Tecnológica de Andalucía. 2011-2012.
Feelings Analysis in Texts: Teaching and Financial Applications. Financed by the Spanish Ministry of Education and Science. 2012-2014.
System of Indicators of Sustainable Development. Financed by Empresa Pública para la Gestión del Turismo y del Deporte de Andalucía, S.A. 2013-2014.
Metaheuristics for Transportation Logistics Problems with Multiple Criteria. Applications to Real Urban and Waste Transportation Problems. Financed by the Spanish Ministry of Education and Science. ECO2013-47129-C4-2-R. 2014-2016.
Concepts and Applications of Intelligent Systems (CASI-CAM-CM). Financed by the Regional Government of Madrid. S2013/ICE-2845. 2014-2018.
Search for Efficiency and Sustainability in Public Decisions: A Multicriteria Scheme. Financed by the Spanish Ministry of Education and Science. ECO2016-76567-C4-4-R. 2016-2018.
Multicriteria Analysis of Social and Environmental Related Problems. Financed by the FEDER Andalucía Operative Program. 2019 – 2021.
Sustainable Decision Making with Multicriteria Methods: real problems from the Social and Environmental Fields. Financed by the Spanish Ministry of Science and Innovation. PID2019-104263RB-C42. 2020–2023.
Global social and environmental challenges with a reference to the Andalusian environment: multi-critreria approaches. Financed by the Regional Government of Andalucía. 2020-2022.
Study on the impact of social policies on the Andalusian economy and their impact on Andalusian GDP. Financed by Consejería de Igualdad, Políticas Sociales y Conciliación de la Junta de Andalucía. 2021.
Smart tourism destinations in Andalucia. Systems of indicators and decision making tools in territorial management. Financed by the Regional Government of Andalucía. 2021-2022.
Methodologies for solving problems with economic, social and environmental criteria. A multi-criteria approach. Financed by the Spanish Ministry of Science and Innovation. 2023 – 2026.

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