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## Need help on Fuzzy Logic

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• Hi, I am new in AI, and doing master on research of smart home using fuzzy logic control system. I don t have any background on fuzzy logic, I just learnt by
Message 1 of 5 , Apr 5, 2011
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Hi,

I am new in AI, and doing master on research of smart home using fuzzy logic control system.

I don't have any background on fuzzy logic, I just learnt by myself. I need some help to clear my thought. I have few questions.

1. Do the system with fuzzy logic can learn by itself? What I mean is, the decision of fuzzy logic are based on inference and the data to decide the defuzzification outcome, is base on this data. Do fuzzy logic system can learn new data and modified this data then modified this defuzzification outcome. I think the system that can learn and modified the outcome is called neuro-fuzzy. So do fuzzy logic also??

2. How to decide linguistic value? What I have read, their ranges are usually chosen by the domain expert. Do this fuzzy logic have fuzzy logic bank databases?? My linguistic variable are temperature, humidity, light intensity, user's present and time. How to decide the linguistic variable to this variable?

3. Can linguistic value have the crisp value, 0 and 1? This is because of my "user's present" variable.

4. Is there are any toolbox for fuzzy logic for those who use Linux?

Thank you,
Regards,
Safarin
• I uploaded a file called FuzzyLogic.pdf in the files section which show examples of how fuzzylogic can work in control systems. hope this helps. As to software
Message 2 of 5 , Apr 7, 2011
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I uploaded a file called FuzzyLogic.pdf in the files section which show examples of how fuzzylogic can work in control systems. hope this helps.
As to software try this
http://linux.softpedia.com/get/Utilities/Fuzzy-logic-trees-22707.shtml

Dan

--- In artificialintelligencegroup@yahoogroups.com, "sangelion" <ir.safarin@...> wrote:
>
> Hi,
>
> I am new in AI, and doing master on research of smart home using fuzzy logic control system.
>
> I don't have any background on fuzzy logic, I just learnt by myself. I need some help to clear my thought. I have few questions.
>
> 1. Do the system with fuzzy logic can learn by itself? What I mean is, the decision of fuzzy logic are based on inference and the data to decide the defuzzification outcome, is base on this data. Do fuzzy logic system can learn new data and modified this data then modified this defuzzification outcome. I think the system that can learn and modified the outcome is called neuro-fuzzy. So do fuzzy logic also??
>
> 2. How to decide linguistic value? What I have read, their ranges are usually chosen by the domain expert. Do this fuzzy logic have fuzzy logic bank databases?? My linguistic variable are temperature, humidity, light intensity, user's present and time. How to decide the linguistic variable to this variable?
>
> 3. Can linguistic value have the crisp value, 0 and 1? This is because of my "user's present" variable.
>
> 4. Is there are any toolbox for fuzzy logic for those who use Linux?
>
> Thank you,
> Regards,
> Safarin
>
• ... [...] ... You can try this java-based FIS http://jfuzzylogic.sourceforge.net/html/index.html or python-based http://pyfuzzy.sourceforge.net/ I use
Message 3 of 5 , Apr 7, 2011
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--- In artificialintelligencegroup@yahoogroups.com, "sangelion" <ir.safarin@...> wrote:
[...]

>
> 4. Is there are any toolbox for fuzzy logic for those who use Linux?
>
> Thank you,
> Regards,
> Safarin
>

You can try this java-based FIS
http://jfuzzylogic.sourceforge.net/html/index.html

or python-based
http://pyfuzzy.sourceforge.net/

I use jfuzzylogic for my research.

Surya Sumpeno
Electrical Engineering Dept.
Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
***
• ... [...] ... You can try this java-based FIS http://jfuzzylogic.sourceforge.net/html/index.html or python-based http://pyfuzzy.sourceforge.net/ I use
Message 4 of 5 , Apr 7, 2011
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--- In artificialintelligencegroup@yahoogroups.com, "sangelion" <ir.safarin@...> wrote:
[...]

>
> 4. Is there are any toolbox for fuzzy logic for those who use Linux?
>
> Thank you,
> Regards,
> Safarin
>

You can try this java-based FIS
http://jfuzzylogic.sourceforge.net/html/index.html

or python-based
http://pyfuzzy.sourceforge.net/

I use jfuzzylogic for my research.

Surya Sumpeno
Electrical Engineering Dept.
Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
***
• Thank you Dan, Actually, I already read many info about fuzzy logic but still doesn t find the solution for my question. Thank you for your kindly help. About
Message 5 of 5 , Apr 7, 2011
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Thank you Dan,

Let me make clear of my questions.
1. Do fuzzy logic (not hybric fuzzy) can learn new input from user. What I mean does the system need some database to collect the new input and then the system can manipulate the defuzzification output by itself.

2. I already decide the lingustic value and it's ranges. But maybe someone could argue about it's ranges. So I would like to have something that can help me to determine this range correctly such as bank of databases (if have).

3. Does the degree of membership value must have the value between 0 and 1? How about the value is only 0 OR 1? If no, what is the degree of member for "user's present = [present/away]".

Regards,
Safarin

--- In artificialintelligencegroup@yahoogroups.com, "Daniel" <daniel.burke@...> wrote:
>
> I uploaded a file called FuzzyLogic.pdf in the files section which show examples of how fuzzylogic can work in control systems. hope this helps.
> As to software try this
> http://linux.softpedia.com/get/Utilities/Fuzzy-logic-trees-22707.shtml
>
> Dan
>
> --- In artificialintelligencegroup@yahoogroups.com, "sangelion" <ir.safarin@> wrote:
> >
> > Hi,
> >
> > I am new in AI, and doing master on research of smart home using fuzzy logic control system.
> >
> > I don't have any background on fuzzy logic, I just learnt by myself. I need some help to clear my thought. I have few questions.
> >
> > 1. Do the system with fuzzy logic can learn by itself? What I mean is, the decision of fuzzy logic are based on inference and the data to decide the defuzzification outcome, is base on this data. Do fuzzy logic system can learn new data and modified this data then modified this defuzzification outcome. I think the system that can learn and modified the outcome is called neuro-fuzzy. So do fuzzy logic also??
> >
> > 2. How to decide linguistic value? What I have read, their ranges are usually chosen by the domain expert. Do this fuzzy logic have fuzzy logic bank databases?? My linguistic variable are temperature, humidity, light intensity, user's present and time. How to decide the linguistic variable to this variable?
> >
> > 3. Can linguistic value have the crisp value, 0 and 1? This is because of my "user's present" variable.
> >
> > 4. Is there are any toolbox for fuzzy logic for those who use Linux?
> >
> > Thank you,
> > Regards,
> > Safarin
> >
>
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