Núria Agell
Professor, Department of Operations, Innovation and Data Sciences in ESADE
URL Professor

Director, Department of Operations, Innovation and Data Sciences
Co-ordinator GREC,

Education

  • Doctora en Matemáticas. Universitat Politècnica de Catalunya
  • Licenciada en Ciencias Matemáticas. Universidad de Barcelona

Areas of interest

  • Multi-creiteria and multi-atribute decision-making
  • Artificial Intelligence
  • Forms of Reasoning: Qualitative Reasoning/Fuzzy Reasoning
  • Artificial Learning
  • Data Mining

Biography

She holds a degree on Mathematics (University of Barcelona, UB) and a PhD in Applied Mathematics from UPC-BarcelonaTech for a dissertation on Artificial Intelligence, specifically in the area of Qualitative Reasoning Modelling. She is an active member of the Catalan Association of Artificial Intelligence (ACIA) and the EURO Working Group on Multi-criteria Decision Aiding. She spent research periods at the LAAS-CNRS (Laboratoire d'analyse et d'architecture des systèmes) in Toulouse and The University of Edinburgh Business School. From October 2006 to 2010, she was appointed President of the Catalan Association for Artificial Intelligence (ACIA).
Her main research interests are on the development of Artificial Intelligence techniques and Decision-Making Systems. In particular, she is working on Learning Algorithms, Qualitative and Fuzzy Reasoning, Multi-criteria and group decision-making, recommending Systems and consensus modelling.
She is the coordinator of the Research Group Judgements and Decisions in the Market Place (JUICE). She is currently the leading coordinator of several publicly and privately-funded projects on the application of artificial intelligence to Business and Marketing. She has supervised or co-supervised 11 PhD thesis. She has more than 40 international publications in referred journals or book chapters, and more than 50 communications in international conferences or workshops.
Núria Agell has been a Full Professor at ESADE Business School, Universitat Ramon Llull, since 2003. Director of ESADE Business School's PhD programme and Master of Research in Management Sciences from 2005 to 2013. In May 2015 was appointed director of the department of Operations, Innovation and Data Sciences at ESADE Business School.


Selected publications

Montserrat-Adell, J., Xu, Z., Gou, X. & Agell, N. (2019). Free double hierarchy hesitant fuzzy linguistic term sets: An application on ranking alternatives in GDM. Information Fusion, (47), pp. 45-59. DOI: 10.1016/j.inffus.2018.07.002.

Vila Fernández-Santacruz, M., Afsordegan , A., Agell, N., Sánchez Soler, M. & Costa Guix, G. (2018). Influential factors in water planning for sustainable tourism destinations. Journal of Sustainable Tourism, 26 (7), pp. 1241-1256. DOI: 10.1080/09669582.2018.1433183.

Montserrat Adell, J., Agell, N., Sánchez Soler, M. & Ruiz Vegas, F. J. (2018). Consensus, dissension and precision in group decision making by means of an algebraic extension of hesitant fuzzy linguistic term sets. Information Fusion, (42), pp. 1-11. DOI: 10.1016/j.inffus.2017.09.004.

Nguyen, J., Sánchez-Hernández, G., Armisen, A., Agell, N., Rovira Llobera, X. & Angulo Bahón, C. (2018). A linguistic multi-criteria decision making system based on FOWA operators to support university career services. Applied Soft Computing , (67), pp. 933-940. DOI: doi.org/10.1016/j.asoc.2017.06.052.

Nguyen, J., Sánchez Hernández, G., Agell, N., Rovira Llobera, X. & Angulo Bahón, C. (2018). A decision support tool using Order Weighted Averaging for conference review assignment. Pattern Recognition Letters, (105), pp. 114-120. DOI: 10.1016/j.patrec.2017.09.020.

Kadzinski, M., Ghaderi, M., Wasikowski, J. & Agell, N. (2017). Expressiveness and robustness measures for the evaluation of an additive value function in multiple criteria preference disaggregation methods: An experimental analysis. Computers & Operations Research, 87 (Nov 2017), pp. 146-164. DOI: http://dx.doi.org/10.1016/j.cor.2017.05.011.

Montserrat Adell, J., Agell, N., Sánchez Soler, M., Prats Duaygues, F. & Ruiz Vegas, F. (2017). Modeling group assessments by means of hesitant fuzzy linguistic term sets. Journal of Applied Logic, 23 (1), pp. 40-50. DOI: 10.1016/j.jal.2016.11.005.

Montserrat Adell, J., Agell, N., Sánchez Soler, M. & Ruiz Vegas, F. (2017, July). A consensus degree for hesitant fuzzy linguistic decision making. In 2017 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE). Symposium conducted at the meeting of IEEE. Institute of Electrical and Electronics Engineers, Naples.

Ghaderi, M., Ruiz, F. & Agell, N. (2017). A linear programming approach for learning non-monotonic additive value functions in multiple criteria decision aiding. European Journal of Operational Research, 259 (3), pp. 1073-1084. DOI: 10.1016/j.ejor.2016.11.038.

Prats Duaygues, F., Roselló Saurí, L., Sánchez Soler , M. & Agell, N. (2016). On fuzzy-qualitative descriptions and entropy. International Journal of Approximate Reasoning, 75 (-), pp. 93-107. DOI: 10.1016/j.ijar.2016.02.006.

Sayeras Maspera, J., Agell, N., Rovira Llobera, X., Sánchez Soler, M. & Dawson, J. (2016). A measure of perceived performance to assess resource allocation. Soft Computing, 20 (8), pp. 3201-3214. DOI: 10.1007/s00500-015-1696-3.

Apostolou, D., Zachos, K., Maiden, N., Agell, N., Sánchez-Hernández, G., Taramigkou, M. & et al. (2016). Facilitating creativity in collaborative work with computational intelligence software. IEEE Computational Intelligence Magazine, 11 (2), pp. 29-40. DOI: 10.1109/MCI.2016.2532266.

Afsordegan , A., Sánchez Soler, M., Agell, N., Zahedi, S. & Cremades, L. (2016). Decision making under uncertainty using a qualitative TOPSIS method for selecting sustainable energy alternatives. International Journal of Environmental Science and Technology, 13 (6), pp. 1419-1432. DOI: 10.1007/s13762-016-0982-7.

Afsordegan , A., Sánchez Soler, M., Agell, N., Aguado Chao, J. & Gamboa, G. (2016). Absolute order-of-magnitude reasoning applied to a social multi-criteria evaluation framework. Journal of Experimental & Theoretical Artificial Intelligence, 28 (1-2), pp. 261-274. DOI: 10.1080/0952813X.2015.1024489.

Ghaderi, M., Ruiz, F. & Agell, N. (2015). Understanding the impact of brand colour on brand image: a preference disaggregation approach. Pattern Recognition Letters, 67 (Part 1), pp. 11-18. DOI: 10.1016/j.patrec.2015.05.011.

Ruiz, FJ., Raya, C., Samà Monsonís, A. & Agell, N. (2015). A transformational creativity tool to support chocolate designers. Pattern Recognition Letters, 67 (Part 1), pp. 75-80. DOI: 10.1016/j.patrec.2015.05.012.

Chiclana , F., Agell, N., Wu, J. & Herrera-Viedma, E. (2015). Fuzzy decision-making and consensus: New trends and real-life applications. Applied Soft Computing , 35 (October 2015), pp. 789-791. DOI: 10.1016/j.asoc.2015.07.043.

Agell, N., van Ganzewinkel, C. J., Sánchez Soler , M., Roselló, L., Prats Duaygues, F. & Andriessen, P. (2015). A consensus model for Delphi processes with linguistic terms and its application to chronic pain in neonates definition. Applied Soft Computing , 35 (October 2015), pp. 942-948. DOI: 10.1016/j.asoc.2015.03.024.

Museros , L., Pujol , O. & Agell, N. (2015). Special issue on "New advances on similarity-based systems applications". Applied Artificial Intelligence: An International Journal, 29 (5), pp. 421-423. DOI: 10.1080/08839514.2015.1026648.

Casabayó, M., Agell, N. & Sánchez-Hernández, G. (2015). Improved market segmentation by fuzzifying crisp clusters: A case study of the energy market in Spain. Expert Systems with Applications, 42 (3), pp. 1637-1643. DOI: 10.1016/j.eswa.2014.09.044.

Ghaderi, M., Ruiz Vegas, F. & Agell, N. (2014, July). Learning non-monotonic preferences, a new algorithm. In 20th Conference of the International Federation of Operational Research Societies. Symposium conducted at the meeting of International Federation of Operational Research Societies (IFORS), Barcelona.

Casabayó, M. & Agell, N. (2014). El gran potencial de la lógica difusa. Harvard Deusto Business Review, (234), pp. 50-57.

Roselló Saurí, L., Sánchez Soler, M., Agell, N., Prats Duaygues, F. & Mazaira Font , F. A. (2014). Using consensus and distances between generalized multi-attribute linguistic assessments for group decision-making. Information Fusion, 17 (1), pp. 83-92. DOI: 10.1016/j.inffus.2011.09.001.

Prats Duaygues, F., Roselló Saurí, L., Sánchez Soler, M. & Agell, N. (2014). Using L-Fuzzy sets to introduce information theory into qualitative reasoning. Fuzzy Sets and Systems, 236 (1), pp. 73-90. DOI: 10.1016/j.fss.2013.06.013.

Samà Monsonís , A., Ruiz Vegas, F., Agell, N., Pérez López , C., Català , A. & Cabestany , J. (2013). Gait identification by means of box approximation geometry of reconstructed attractors in latent space. Neurocomputing, (121), pp. 79-88.

Sánchez-Hernández, G., Agell, N. & Aguado Chao, J. (2013, October). Natural language-based automatic qualitative description of clusters. In 16è Congrés Català d'Intel·ligència Artificial (CCIA 2013). Symposium conducted at the meeting of Associació Catalana d'Intel·ligència Artificial (ACIA), Vic.

Samà Monsonís , A., Ruiz Vegas, F. & Agell, N. (2013, October). Granular computing for gait recognition through singular spectrum analysis. In 16è Congrés Català d'Intel·ligència Artificial (CCIA 2013). Symposium conducted at the meeting of Associació Catalana d'Intel·ligència Artificial (ACIA), Vic.

Agell, N., Sánchez-Hernández, G., Sánchez Soler, M. & Ruiz Vegas, F. (2013, August). Group decision-making system based on a qualitative location function. An application to chocolates design. In 27th International Workshop on Qualitative Reasoning (QR 2013). Symposium conducted at the meeting of Institute for Creative Technologies (ICT), Bremen.

Agell, N., Sánchez-Hernández, G., Sánchez Soler, M. & Ruiz Vegas, F. (2013, June). Selecting the best taste: A group decision-making application to chocolates design. In 2013 IFSA World Congress. NAFIPS Annual Meeting. Symposium conducted at the meeting of International Fuzzy Systems Association (IFSA), Edmonton.

Ghaderi, M., Agell, N., Ruiz Vegas, F. & Sánchez Soler, M. (2013, June). Multi-criteria preference disaggregation analysis for classification: an application to model colour preferences . In 22nd International Conference on Multiple Criteria Decision Making (MCDM), Málaga 2013. Symposium conducted at the meeting of International Society on MCDM , Málaga.

Agell, N., Cremades, L., Sánchez Soler, M. & Zahedi, S. (2013, June). Assessment of renewable energies based on fuzzy and qualitative multi-criteria decision making. In 22nd International Conference on Multiple Criteria Decision Making, Málaga 2013. Symposium conducted at the meeting of International Society on Multiple Criteria Decision Making (MCDM), Málaga.

Sánchez-Hernández, G., Agell, N. & Aguado Chao, J. (2013). A fuzzy multi-criteria classification methodology for unsupervised learning systems. Expert Systems with Applications, (44), pp. 20-33.

Agell, N., Sánchez Soler, M., Prats Duaygues, F. & Roselló Saurí, L. (2012). Ranking multi-attribute alternatives on the basis of linguistic labels in group decisions. Information Sciences: Informatics and Computer Science, (209), pp. 49-60.

Ruiz Vegas, F., Agell, N., Angulo Bahón, C. & Sánchez Soler, M. (2012, July). A qualitative learning system to acquire human sensory abilities in adjustment tasks. In 26th International Workshop on Qualitative Reasoning (QR 2012). Symposium conducted at the meeting of Institute for Creative Technologies (ICT), Los Angeles.

Casabayó, M. & Agell, N. (2012). A fuzzy segmentation approach to guide marketing decisions. In Meier, A. & Donzé, L. (Eds.), Fuzzy methods for customer relationship management and marketing: Applications and classifications (pp. 291-311). Hershey: IGI Global.

Ruiz Vegas, F., Samà Monsonís , A., Sánchez-Hernández, G., Sanabria Montañez, J. & Agell, N. (2011, July). An interval technical indicator for financial time series forecasting. In 25th International Workshop on Qualitative Reasoning (QR 2011). Symposium conducted at the meeting of Institute for Creative Technologies (ICT), Barcelona.

Roselló Saurí, L., Garcia Vidal, D., Agell, N., Sánchez Soler, M. & Prats Duaygues, F. (2011, July). Using qualitative reasoning to model users profiles: An approach to movie recommendations. In 25th International Workshop on Qualitative Reasoning (QR 2011). Symposium conducted at the meeting of Institute for Creative Technologies (ICT), Barcelona.

Roselló Saurí, L., Prats Duaygues, F., Agell, N. & Sánchez Soler, M. (2011). A qualitative reasoning approach to measure consensus. In Herrera-Viedma, E., García-Lapresta, J.L., Kacprzyk, J., Fedrizzi, M., Nurmi, H. & Zadrozny, S. (Eds.), Consensual processes (pp. 235-261). Berlin: Springer.

Roselló Saurí, L., Sánchez Soler, M., Prats Duaygues, F. & Agell, N. (2010, November). Using qualitative reasoning to measure discrepancy and consensus in group decision. In 10th International Conference on Intelligent Systems Design and Applications, Cairo 2010. Symposium conducted at the meeting of International Conference on Intelligent Systems Design and Applications (ISDA), Cairo.

Sánchez-Hernández, G., Samà Monsonís , A., Ruiz Vegas, F. & Agell, N. (2010, October). Moving intervals for nonlinear time series forecasting. In 13th International Conference of the Catalan Association for Artificial Intelligence. Symposium conducted at the meeting of Associació Catalana d'Intel·ligència Artificial (ACIA), L' Espluga de Francolí.

Roselló Saurí, L., Sánchez Soler, M., Agell, N. & Prats Duaygues, F. (2010, October). Using qualitative reasoning for a recommender system. In 13th International Conference of the Catalan Association for Artificial Intelligence. Symposium conducted at the meeting of Associació Catalana d'Intel·ligència Artificial (ACIA), L' Espluga de Francolí.

Diasio, S. & Agell, N. (2010, August). An intermediary's perspective on co-creation: mechanisms for knowledge management. In 16th Americas Conference on Information Systems (AMICS) Lima 2010. Symposium conducted at the meeting of Americas Conference on Information Systems (AMCIS), Lima.

Roselló Saurí, L., Prats Duaygues, F., Sánchez Soler, M. & Agell, N. (2010, August). A recommender system based on group consensus. In 24th International Workshop on Qualitative Reasoning (QR 2010). Symposium conducted at the meeting of Institute for Creative Technologies (ICT), Portland.

Sanabria Montañez, J., Sánchez-Hernández, G., Agell, N. & Sayeras Maspera, J. (2010, August). An application of SVMs to predict financial exchange rate by using sentiment indicators. In V Simposio de Teoría y Aplicaciones de Minería de Datos, Valencia 2010. Symposium conducted at the meeting of Ministerio de Educación, Cultura y Deporte , Valencia.

Diasio, S. & Agell, N. (2010, June). Replanting the answer garden: Cultivating expertise through decision support technology. In 12th International Conference on Enterprise Information Systems, Funchal 2010. Symposium conducted at the meeting of ICEIS, Funchal.

Diasio, S. & Agell, N. (2010, May). IBM innovation jams: A mechanism for change. In 10th EURAM Annual Conference 2010. Symposium conducted at the meeting of European Academy of Management (EURAM), Rome.

Roselló Saurí, L., Prats Duaygues, F., Agell, N. & Sánchez Soler, M. (2010). Measuring consensus in group decisions by means of qualitative reasoning. International Journal of Approximate Reasoning, 51 (4), pp. 441-452.

Diasio, S. & Agell, N. (2009, July). Integrating decision support systems: Expert, group, and collective intelligence. In 12th International Conference on Artificial Intelligence (ICAI 2009). Symposium conducted at the meeting of International Conference on Artificial Intelligence (ICAI), Las Vegas.

Diasio, S. & Agell, N. (2009, April). The evolution of expertise in decision support technologies: A challenge for organizations. In 13th International Conference on Computer Supported Cooperative Work in Design, Santiago 2009. Symposium conducted at the meeting of Universidad de Chile, Santiago.

Ruiz Vegas, F., Agell, N. & Angulo Bahón, C. (2009, April). SVM-based learning method for improving colour adjustment in automotive basecoat manufacturing. In European Symposium on Artificial Neural Networks, Bruges 2009. Symposium conducted at the meeting of European Symposium on Artificial Neural Networks (ESANN), Bruges.

Roselló Saurí, L., Prats Duaygues, F., Sánchez Soler, M. & Agell, N. (2008, October). New challenges: Group decision systems by means of entropy defined through qualitative reasoning structures. In XI Congrés Internacional de l'Associació Catalana d'Intel·ligència Artificial (CCIA 2008). Symposium conducted at the meeting of Catalan Association for Artificial Intelligence (CCIA), Sant Martí d'Empuries.

Ruiz Vegas, F., Angulo Bahón, C. & Agell, N. (2008). Intersection and signed-intersection kernels for intervals. In Torras , C., Alsinet, T. & Pujol-Gruart , J. (Eds.), Artificial intelligence research and development: Proceedings of the 11th International Conference of the Catalan Association for Artificial Intelligence (pp. 262-270). Amsterdam: IOS Press.

Ruiz Vegas, F., Angulo Bahón, C. & Agell, N. (2008). IDD: A supervised interval distance-based method for discretization. IEEE Transactions on Knowledge and Data Engineering, 20 (9), pp. 1230-1238.

Roselló Saurí, L., Prats Duaygues, F., Sánchez Soler, M. & Agell, N. (2008, July). The concept of entropy by means of generalized orders of magnitude qualitative spaces. In 18th European Conference on Artificial Intelligence (ECAI 2008). Symposium conducted at the meeting of European Conference on Artificial Intelligence (ECAI), Pátrai.

Sánchez-Hernández, G., Samà Monsonís , A., Casabayó, M. & Agell, N. (2008, June). Forecasting customer's loyalty by means of an unsupervised fuzzy learning method. In 28th Annual International Symposium on Forecasting. Symposium conducted at the meeting of International Institute of Forecasters (IIF), Nice.

Sanabria Montañez, J., Ruiz Vegas, F., Sayeras Maspera, J. & Agell, N. (2008, June). A SVM approach to foreign exchange forecasting. In 28th Annual International Symposium on Forecasting. Symposium conducted at the meeting of International Institute of Forecasters (IIF), Nice.

Agell, N., Casabayó, M. & Dawson, J. (2008). Artificial intelligence: ¿Fiction film or business reality?. The Retailer, (7), pp. 33-36.

Güereca , L. P., Agell, N., Gassó Pons , S. & Baldasano Recio , J. M. (2007). Fuzzy approach to life cycle impact assessment: An application for biowaste management systems. The International Journal of Life Cycle Assessment, 12 (7), pp. 488-496.

Angulo Bahón, C., González , L., Ruiz Vegas, F., Català , A., Velasco , F. & Agell, N. (2007). Analyzing a sustainability indicator by means of qualitative kernels. In Kropp, J. & Sheffran, J. (Eds.), Advanced methods for decision making and risk management in sustainability science (pp. 129-142). Hauppauge: Nova Science Publishers.

Riu Vila, D., Casabayó, M., Agell, N. & Angulo Bahón, C. (2007, July). Comparing research methods in social sciences. In 6th European Conference on Research Methodology for Business and Management Studies (ECRM 2007). Symposium conducted at the meeting of European Conference on Research Methodology (ECRM), Lisbon.

Sánchez-Hernández, G., Agell, N., Aguado Chao, J., Sánchez Soler, M. & Prats Duaygues, F. (2007). Selection criteria for fuzzy unsupervised learning: Applied to market segmentation. In Melin, P., Castillo, O., Aguilar, L.T. & Pedrycz, W. (Eds.), Foundations of fuzzy logic and soft computing: 12th International Fuzzy Systems Association World Congress, IFSA 2007 (pp. 307-317). Berlin: Springer.

Rovira Llobera, X., Agell, N., Sánchez Soler, M., Prats Duaygues, F. & Ventura Alemany , M. (2007, June). Group decision systems for ranking and selection: An application to the accreditation of doping control laboratories. In 9th International Conference on Enterprise Information Systems, Funchal 2007. Symposium conducted at the meeting of ICEIS, Funchal.

Domingo , M., Agell, N., Parra Llanas , X., Sánchez Soler, M. & Angulo Bahón, C. (2007). Using qualitative information to predict citizens' satisfaction. AI Communications: The European Journal on Artificial Intelligence, 20 (1), pp. 59-65.

Roselló Saurí, L., Agell, N., Sánchez Soler, M. & Prats Duaygues, F. (2006, October). Qualitative induction trees applied to the study of the financial rating. In 9è Congrés Internacional de l'Associació Catalana d'Intel·ligència Artificial (CCIA'06). Symposium conducted at the meeting of Catalan Association for Artificial Intelligence (CCIA), Perpignan.

Ruiz Vegas, F., Angulo Bahón, C. & Agell, N. (2006, October). Nature-inspiration on kernel machines: Data mining for continuous and discrete variables. In 10th International Conference on Knowledge-Based & Intelligent Information & Engineering Systems, Bournemouth 2006. Symposium conducted at the meeting of Bournemouth University, Bournemouth.

Ruiz Vegas, F., Angulo Bahón, C. & Agell, N. (2006). Support Vector Machines for color adjustment in automotive basecoat. In Radeva, P., Vitria, J., Meléndez, J., Polit, M. & López, B. (Eds.), Artificial intelligence research and development (pp. 19-27). Amsterdam: IOS Press.

Roselló Saurí, L., Agell, N., Sánchez Soler, M. & Prats Duaygues, F. (2006). Qualitative induction trees applied to the study of the financial rating. In Vitria, J., Radeva, P., Aguiló , I., Polit, M., Meléndez, J. & López, B. (Eds.), Recent advances in artificial intelligence research and development (pp. 63-70). Amsterdam: IOS Press.

Ruiz Vegas, F., Angulo Bahón, C. & Agell, N. (2006). Nature-inspiration on kernel machines: Data mining for continuous and discrete variables. In Gabrys, B., Howlett , R. J. & Jain , L. C. (Eds.), Knowledge-based intelligent information and engineering systems (pp. 425-432). Berlin: Springer.

Prats Duaygues, F., Sánchez Soler, M., Agell, N. & Ormazabal Sánchez , G. (2006). An evaluation method with imprecise information for multi-attribute decision support. In Marín, R., Onaindía, E., Bugarín, A. & Santos, J. (Eds.), Current topics in artificial intelligence (pp. 133-142). Berlin: Springer.

Agell, N., Rovira Llobera, X., Sánchez Soler, M. & Prats Duaygues, F. (2006, July). Using orders of magnitude in multi-attribute decision-making. In 20th International Workshop on Qualitative Reasoning (QR 2006). Symposium conducted at the meeting of Institute for Creative Technologies (ICT), Hanover.

Ruiz Vegas, F., Angulo Bahón, C. & Agell, N. (2006). A supervised discretization method for quantitative and qualitative ordered variables. Computación y Sistemas: Revista Iberoamericana de Computación, 9 (4), pp. 314-325.

Casabayó, M., Agell, N. & Dawson, J. (2006, January). Forecasting customer's behaviour in the Spanish grocery industry: Identifying the customers who are going to buy online. In 5th International Marketing Trends Conference 2006. Symposium conducted at the meeting of International Marketing Trends Conference, Venice.

Trave-Massuyes , L., Prats Duaygues, F., Sánchez Soler, M. & Agell, N. (2005). Relative and absolute order-of-magnitude models unified. Annals of Mathematics and Artificial Intelligence, 45 (3/4), pp. 323-341.

Olmo Olmo, C., Sánchez-Hernández, G., Prats Duaygues, F., Sánchez Soler, M. & Agell, N. (2005, November). Idempotent linearly compensated hybrid connectives for customers patterns segmentation. In Conferencia de la Asociación Española para la Inteligencia Artificial, Santiago de Compostela 2005. Symposium conducted at the meeting of (CAEPIA) Conferencia de la Asociación Española para la Inteligencia Artificial, Santiago de Compostela.

Casabayó, M., Aguado Chao, J., Banchillería Masó , R. & Agell, N. (2005, November). An unsupervised learning algorithm to store pattern recognition . In Conferencia de la Asociación Española para la Inteligencia Artificial, Santiago de Compostela 2005. Symposium conducted at the meeting of (CAEPIA) Conferencia de la Asociación Española para la Inteligencia Artificial, Santiago de Compostela.

Sánchez Soler, M., Prats Duaygues, F., Agell, N. & Ormazabal Sánchez , G. (2005). Multiple criteria evaluation for value management in civil engineering. Journal of Management in Engineering, 21 (3), pp. 131-137.

Rovira Llobera, X., Agell, N., Sánchez Soler, M., Prats Duaygues, F. & Parra Llanas , X. (2004). Qualitative radial basis function networks applied to financial credit risk prediction. In Vitrià, J., Radeva, P. & Aguiló , I. (Eds.), Recent advances in artificial intelligence research and development (pp. 111-118). Amsterdam: IOS Press.

Sánchez Soler, M., Prats Duaygues, F., Agell, N. & Rovira Llobera, X. (2004). Kernel functions over orders of magnitude spaces by means of usual kernels. Application to measure financial credit risk. In Pérez De la Cruz , J. L., Conejo, R. & Urretavizcaya, M. (Eds.), Current topics in artificial intelligence (pp. 415-424). Berlin: Springer.

Casabayó, M., Agell, N. & Aguado Chao, J. (2004). Using AI techniques in grocery industry: Identifying the customers most likely to defect. The International Review of Retail, Distribution and Consumer Research, 14 (3), pp. 295-308.

Sánchez Soler, M., Prats Duaygues, F., Agell, N. & Rovira Llobera, X. (2003, November). Funciones kernel en espacios cualitativos de órdenes de magnitud. Aplicación a la evaluación del riesgo de crédito. In 10th Conferencia de la Asociación Española de Inteligencia Artificial, San Sebastián 2003. Symposium conducted at the meeting of Asociación Española para la Inteligencia Artificial (AEPIA), San Sebastian.

Agell, N., Rovira Llobera, X., Sánchez Soler, M. & Prats Duaygues, F. (2003). Support vector machines over a discrete structure: A kernel for qualitative orders of magnitude spaces. In Escrig, M.T., Aguiló , I. & Valverde Aranda , J. L. (Eds.), Artificial intelligence research and development (pp. 267-275). Amsterdam: IOS Press.

Aguilar Martin, J., Agell, N., Sánchez Soler, M. & Prats Duaygues, F. (2002). Analysis of tensions in a population based on the adequacy concept. In Escrig, M.T., Toledo, F. & Golobardes, E. (Eds.), Topics in artificial intelligence (pp. 17-28). Berlin: Springer.

Parra Llanas , X., Angulo Bahón, C., Agell, N. & Rovira Suñé, X. (2001). Aproximación a un problema financiero mediante redes neuronales con funciones base radiales y máquinas de soporte vectorial. Inteligencia Artificial: Revista Iberoamericana de Inteligencia Artificial, 5 (14), pp. 54-67.

Parra Llanas , X., Rovira Llobera, X. & Agell, N. (2001). Generalisation improvement of radial basis function networks based on qualitative input conditioning for financial risk prediction. In Dorffner, G., Bischof, H. & Hornik, K. (Eds.), Artificial neural networks - ICANN 2001 (pp. 127-134). Berlin: Springer.

Agell, N., Febles , F. & Piera Carreter , N. (1998). Definition and study of linear equations on order of magnitude models. Methodology and Tools in Knowledge-Based Systems, (1415), pp. 302-311.

Agell, N., Febles , F. & Piera Carreter , N. (1998). Definition and study of linear equations on order of magnitude models. In Pasqual del Pobil , À., Mira, J. & Ali, M. (Eds.), Methodology and tools in knowledge-based systems (pp. 302-311). Berlin: Springer.

Agell, N. (1984). On concavity of t-norms and triangular functions. Stochastica: Revista de Matemática Pura y Aplicada, 8 (1), pp. 91-95.