Evolution of L-fuzzy contexts associated with criteria

This paper will delve deeper into the general study of the L-fuzzy contexts associated with criteria analyzing situations with a known evolution over time. These criteria may be independent or dependent on each other. We propose two different studies: to build an aggregated context looking for a simplification of the process and to keep the sequence obtaining interesting nuances over time. In both cases, aggregation operators will be used in order to address the problem. Finally, a practical example about ratings obtained by different tourist accommodations illustrates the results.This paper is partially supported by the Research Group 'Intelligent Systems and Energy (SI+E)' of the University of the Basque Country, under Grant GIU16/54 and by the Research Group 'Artificial Intelligence and Approximate Reasoning' of the Public University of Navarre, under TIN2016-77356-P (MINECO, AEI/FEDER, UE