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Introduction to Fuzzy Logic


Akira Imada, Professor
Intelligent Information Technologies Department, BrSTU

In Fuzzy logic we use so-called a membership function to express how likely a statement is. Starting with very simple membership function of, say, "The beer is cold," we study Fuzzy set arithmetic, such as "A AND B," "A OR B," "NOT A" and IF A THEN B." A toy example is, "The beer is cold OR a little cold." The membership function can simply be expressed in 2-dimensional plane, because only the domain is temperature. The next toy example: "He is told AND young." is somewhat more complicated because domains are height and age. Hence membership function should be in 3-dimensional space. Thus we study how to create a multiple-domain membership function. You will make a membership function, like "If the lemon is green, then it will be very sour, less likely to be normally sour, and unlikely to be sweet." Most important arithmetic is "IF A THEN B" given both membership function of A and B, because our aim in this lecture is to design a control system by a rule set which is made up of "IF A AND B THEN C" type of rules. And each of such rules are united with OR" The membership function will be quite complicated. Then we simulate a simple metro system controlled by this Fuzzy logic. To simplify, we try to use only two factors: speed of train, and distance to the train in front. Each train controls its speed by 'defuzzified' quantity of pressure of break pedal.

Course Description




2nd International Conference on Current Research Problems of Materials, Structures, Technologies and Organization of Civil Engineering in Cross-Border Approach will be held in BrSTU

Important Dates:
• Registration and Abstract Submission: June 1, 2018
• Notification of Abstract Acceptance and Full Paper Requirements: July 1, 2018
• Full Paper Submission: August 1, 2018
• Notification of Full Paper Acceptance: August 10, 2018
• Opening of a Conference: October 18, 2018

The English for Specific Purposes Training took place in BrSTU on May, 12th-13th, 2016.

The Training was held under the Erasmus+ Project “Library Network Support Services (LNSS): modernising libraries in Armenia, Moldova and Belarus through library staff development and reforming library services”.

DAAD invites applications for a summer school in Essen

The summer school, funded by the German Academic Exchange Service (DAAD)  will start with visits to European Institutions in  Strasburg, followed by llectures and presentations in Essen and last from 22.08. - 31.08.2016.

Application deadline: 05.02.2016.

Working language is English.

Travel costs and costs foe stay are covered by DAAD

See more information in the FLYER.

Welcome to English Club

We are pleased to invite all those who are not indifferent to English and who want to upgrade their English skills to join “English Speaking Club” at our university.

Master students of BrSTU attended a meeting with the expert of CERES project

The meeting between head of department of informatics and applied mathematics Siarhei Parfamuk and the university’s undergraduates was held on October 30, 2015 on the theme "Participation of the Brest State Technical University in the CERES project".

Spanish exchange student: my experience in Belarus

I am Alexandra from Spain and I am going to tell you about my experience in Belarus.