Talk by Leonard Kwuida

Short Title: 
Talk by L. Kwuida
Event Date(s): 
Thursday, 18. October 2018 - 10:15 to 11:30

Room A097, ExWi, Sidlerstrasse 5, 3012 Bern

Prof. Dr. Leonard Kwuida (Berner Fachhochschule)

An Introduction to Formal Concept Analysis.

Formal Concept Analysis (FCA) emerged in the 1980’s from attempts to restructure lattice theory in order to promote better communication between lattice theorists and potential users of lattice theory. Since its early years, FCA has developed into a research field in its own right with a thriving theoretical community and a rapidly expanding range of applications in information and knowledge processing including visualization, data analysis (mining) and knowledge management and discovery, as well as logic and algebra. In its early age, a lot of efforts have been put on computing. But the size of the retrieved clusters/rules can exponential. Therefore controlling the size of and managing the retrieved information are getting more and more attention. In this talk we start by discussing different facets of the same coin: contexts, closure systems, closure operators, Galois connections, complete lattices and implications. We continue with some standard constructions in lattice theory. We finish with some attempts on how to control the size of retrieved clusters.