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The twentieth meeting of the Prague computer science seminar

Radim Bělohlávek

Fuzzy logic and relational data

Fuzzy logic differs from classical, two-valued logic in that it rejects the principle of bivalence. While according to the principle of bivalence every statement is either true or false, fuzzy logic admits intermediate truth values, called degrees of truth.

April 28, 2016

4:00pm

Auditorium E-107, FEL CTU
Karlovo nám. 13, Praha 2
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Lecture annotation

Fuzzy logic differs from classical, two-valued logic in that it rejects the principle of bivalence. While according to the principle of bivalence every statement is either true or false, fuzzy logic admits intermediate truth values, called degrees of truth. These are primarily interpreted as truth values of statements involving vague predicates such as “high” or “red”. Since usage of vague predicates is typical in human description of the outer world, fuzzy logic has found many applications in various areas of human affairs.

In this talk, we will first survey the principles of fuzzy logic, mention some relevant historical facts, and present several areas of computer science where fuzzy logic has been applied in an interesting way. The second part will be devoted to problems studied and results obtained by the speaker, in particular to foundations and algorithms for analysis of factors and dependencies in data with fuzzy attributes.

Lecturer

Radim Bělohlávek

Radim Bělohlávek pursues research in fuzzy logic and applications of algebra and logic in relational data modeling. He has authored or coauthored over one hundred papers in international journals and two books in these areas. He is a professor of computer science at the Faculty of Science, Palacký University, Olomouc, where he is currently the head of Department of Computer Science. In the past, he was a full professor at the State University of New York in Binghamton.

ABOUT THE PRAGUE COMPUTER SCIENCE SEMINAR

The seminar takes place on the 4th Thursday of each month at 4:00pm (except June, July, August and December) alternately in the buildings of Faculty of Electrical Engineering, Czech Technical University, Karlovo nám. 13, Praha 2 and Faculty of Mathematics and Physics, Charles University, Malostranské nám. 25, Praha 1.

Its program consists of a one-hour lecture followed by a discussion. The lecture is based on an (internationally) exceptional or remarkable achievement of the lecturer, presented in a way which is comprehensible and interesting to a broad computer science community. The lectures is in English.

The seminar is organized by the organizational committee consisting of Roman Barták (Charles University, Faculty of Mathematics and Physics), Michal Chytil (Czech Academy of Sciences, Computer Science Institute), Pavel Kordík (Czech Tech. Univ., Faculty of Information Technologies), Jan Kybic (Czech Tech. Univ., Faculty of Electrical Engineering), Michal Pěchouček (Czech Tech. Univ., Faculty of Electrical Engineering), Jiří Sgall (Charles University, Faculty of Mathematics and Physics), Vojtěch Svátek (University of Economics, Faculty of Informatics and Statistics), Michal Šorel (Czech Academy of Sciences, Institute of Information Theory and Automation), Tomáš Werner (Czech Tech. Univ., Faculty of Electrical Engineering), and Filip Železný (Czech Tech. Univ., Faculty of Electrical Engineering)

The idea to organize this seminar emerged in discussions of the representatives of several research institutes on how to avoid the undesired fragmentation of the Czech computer science community.

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