Keynote Speakers


Proffesor Luis Martínez University of Jaén, Spain

Group Recommender Systems: A challenge for Consensus Reaching Processes

Due to the fact that in the contemporary E-commerce customers demand quick and easy access to products, and there is an overwhelming amount of information that leads customers into the difficult task of filtering information that meets their actual needs. To address this problem, recommender systems were proposed to filter information, thus delivering to users only the information that meets their preferences or needs. Recommender systems are probably the most successful tool to support personalised recommendations.

Most recommender systems research has been focused on the accuracy improvement of recommendation algorithms. Despite this, recently new trends in recommender systems have become important research topics such as, cold start, context awareness, group recommendations, etc. Group recommendations are very challenging because of its own features, the use of group decision techniques based on consensus reaching processes can provide important improvements an open a line for improvement such a type of recommendations.

This talk will review the basics of the most wide-spread type of Recommender Systems such as Collaborative Filtering models. Afterwards, it will be focused on important results obtained in group recommendations based on group decision negotiation processes. Eventually it will be pointed out different open research lines in the topic.


Luis Martinez width=Luis Martínez was born in 1970. He received the M.Sc. and Ph.D. degrees in Computer Sciences, both from the University of Granada, Spain, in 1993 and 1999, respectively. Currently, he is Full Professor of Computer Science Department at the University of Jaén. His current research interests are fuzzy decision making, linguistic preference modelling, fuzzy systems, decision support systems, personalised marketing, computing with words and recommender systems. He co-edited eleven journal special issues on fuzzy preference modelling, soft computing, linguistic decision making and fuzzy sets theory and has been main researcher in 14 R&D projects, also has published more than 100 papers in journals indexed by the SCI as well as 33 book chapters and more than 150 contributions in International Conferences related to his areas. He is member of the European Society for Fuzzy Logic and Technology, IEEE. Co-Editor in Chief of the of the International Journal of Computational Intelligence Systems and an Associated Editor of the journals IEEE Transactions on Fuzzy Systems, Information Fusion, the International Journal of Fuzzy Systems, Journal of Intelligent & Fuzzy Systems, Applied Artificial Intelligence, Journal of Fuzzy Mathematics and serves as member of the journal Editorial Board of the Journal of Universal Computer Sciences.

He received twice the IEEE Transactions on Fuzzy Systems Outstanding Paper Award 2008 and 2012 (bestowed in 2011 and 2015 respectively). And he is Visiting Professor in University of Technology Sydney, University of Portsmouth Isambard Kingdom Brunel Fellowship Scheme), in the Wuhan University of Technology (Chutian Scholar), Guest Professor in the Southwest Jiaotong University and Honourable professor in Xihua University both in Chengdu (China). Eventually, He received twice the IEEE Transactions on Fuzzy Systems Outstanding Paper Award 2008 and 2012 (bestowed in 2011 and 2015 respectively). And he is Visiting Professor in University of Technology Sydney, University of Portsmouth Isambard Kingdom Brunel Fellowship Scheme), in the Wuhan University of Technology (Chutian Scholar), Guest Professor in the Southwest Jiaotong University and Honourable professor in Xihua University both in Chengdu (China). Eventually, he has been appointed as Highly Cited Researcher 2017 in Computer Science according to the Web of Science.