Special Session at IFSA/EUSFLAT 2015

Representing and Managing Vagueness: different scenarios, different tools


The notion of vagueness has been extensively analysed in the last decades by philosophers, logicians and computer scientists. Here we are interested in the vagueness originated by different characteristics and flaws in information: incompleteness, imprecision, graduality, granularity, contradiction between agents, etc. For each of these aspects one (or more) specific tool has been introduced in literature: fuzzy sets, rough sets, possibility theory, formal concept analysis, interval analysis, etc. Further, when more than one form of vagueness are present at the same time, it seems natural to fuse such tools, as in the fuzzy rough set case. The special session is devoted to collect all contributions that deal with scenarios leading to a form of vagueness and tools to represent and manage it. In particular, all critical discussions, comparisons among two or more forms of vagueness and/or comparisons and fusion of two or more tools are welcome.

The not exhaustive list of topics includes:

-rough sets (classical, probabilistic, game-theoretic, etc…)

-fuzzy rough sets

-interval-valued fuzzy sets

-possibility theory


-paraconsistent logics

-near sets

-interval analysis

-grey sets

-non-classical logics (many valued, paraconsistent, epistemic,…)

Important Dates

– January 16th, 2015: Full Papers Submission

– March 16th, 2015: Notification of Acceptance

– April 16th, 2015: Submission of Final Papers


Davide Ciucci, University of Milano-Bicocca, Italy, ciucci@disco.unimib.it

Chris Cornelis, University of Granada, Spain, chriscornelis@ugr.es

Jesús Medina, University of Cádiz, Spain, jesus.medina@uca.es

You are kindly invited to express your interest in the special session by contacting one of the organizers, specifying a tentative title and authors.