fuzzy logic options presentation - trinity college dublin · title microsoft powerpoint - fuzzy...

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Fuzzy Logic and Fuzzy Systems –A FY Option for 2019-2020

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Khurshid Ahmad, Professor of Computer Science,

Department of Computer ScienceTrinity College,

Dublin-2, IRELANDMarch 2019.


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FUZZY LOGIC & FUZZY SYSTEMS UNCERTAINITY AND ITS TREATMENT

Fuzzy logic is a system of logic for dealing with vague concepts and to facilitate approximate reasoning and automatic learning of the concepts.

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Fuzzy logic provides a framework in which deep learning has a natural place.

In most CS areas learning is grafted on.


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FUZZY LOGIC & FUZZY SYSTEMS BACKGROUND & DEFINITIONS

This course will focus on (a) fuzzy logic & control systems; (b) machine learning and fuzzy systems.

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How rice is cooked: Cooking white rice is a

four-phase process.

1. SOAK rice in water for a while;

2. BRING the water to boil and keep the temperature to boiling point of water;

3. TONE down the heat;

4. SWITCH off and eat!!

http://home.howstuffworks.com/rice-cooker2.htm

when the rice is cooking too fast on a hot day [ ..]the fuzzy logic algorithm will take the form of an if/then statement such as, "If the rice is too hot, and it is continuing to heat up fairly quickly, then the heating element needs to be turned down."


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• The best and most precise description of disease , diagnosis and treatment, use linguistic terms that are imprecise and vague.

• The classical concepts of health and disease are mutually exclusive and opposite.

• However, some recent approaches consider both concepts as complementary processes in the same continuum.

Angela Torres and Juan J. Nieto (2006). Fuzzy Logic in Medicine and Bioinformatics. Journal of Biomedicine and Biotechnology. Volume 2006, Article ID 91908, Pages 1–7. (DOI 10.1155/JBB/2006/91908)

Medicine

These descriptions have been successfully modelled using systems that can perform approximate reasoning and can learn to cope with uncertainty and vagueness in these systems

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http://home.howstuffworks.com/rice-cooker2.htm


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Reacting to unexpected and expected situations: A robot showing ‘human emotions’. Somebody intruding in your space !

Relating PERCEPTION to EMOTION

Hossein Mobahi and Shahin Ansari. (2003)Fuzzy Perception, Emotion and Expression for Interactive Robots. IEEE International Conference on Systems, Man and Cybernetics, 5-8 Oct. 2003., Vol 4. pp 3918-3923 http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1244500

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Forward Axle; Rear Axle; F. LeftF. Left; Side Left; Side Right; Rear Left; Rear Right

A ‘linguistic’ rule

Finally, been driven away by an autonomous car that successfully avoids obstacles on its own!


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Forward Axle; Rear Axle; F. LeftF. Left; Side Left; Side Right; Rear Left; Rear Right

A ‘linguistic’ rule

Finally, been driven away by an autonomous car that successfully avoids obstacles on its own!

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Washing machines, blood pressure monitors, and obstacle avoiding cars, that claim to have built-in fuzzy logicdemonstrate how fuzzy set theory, fuzzy logic and fuzzy control are used conjunctively to build the intelligent washing machine, the ‘wise’ monitors and the clever car.


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Fuzzy logic is being developed as a discipline to meet two objectives:

1. As a professional subject dedicated to the building of systems of high utility – for example fuzzy control

2. As a theoretical subject – fuzzy logic is “symbolic logic with a comparative notion of truth developed fully in the spirit of classical logic [..] It is a branch of many-valued logic based on the paradigm of inference under vagueness.

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Course Content1. Terms: Uncertainty and Vagueness2. Fuzzy Sets, Fuzzy Logic & Systems3. Fuzzy Control4. Machine Learning and Neural Nets5. Neuro-fuzzy systems

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fuzzy logic options presentation - trinity college dublin · title microsoft powerpoint - fuzzy...

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