There r some things want to learn about fuzzy theory:
1. To apply need qualitative data?
2. Can do with quantitative data?
3. What type of questionnaire developed for analysing?
4. How to interpret?
Regards
Dear Halima,
You can use fuzzy theory for both qualitative and quantitative modeling. The linguistic terms can easily be modelled by fuzzy logic, so if you want to develop a qualitative model, you can prefer fuzzy logic approach. On the other hand, it has already used for quantitative modelling since 1965. I think you can find many text books and papers about samples for those modellings. For questionnare, i suggest likert scale based inquiries instead of binary (y/n) ones. If you use likert scale, you can easily interpret the results using score of each question. Besides, you can convert the likert scale to linguistic terms.
I do not know whether this short description is helpful or not.
Dr. Y. Sazi Murat
There is no shortcut. You need to read a good book.
You may try this:
Ross, T.J., 2005. Fuzzy logic with engineering applications. John Wiley & Sons.
One important entry point to fuzzy logic is fuzzy clustering. Try to see the relationships between different variables, no only as one point but multidimensional spaces. In the case of quantitative methods the analysis of principal componets.
In the case of learning, fuzzy logic relates to the intuitive capacity of the brain `it seems to have a relationship´
Dear Halima,
I agree with Mah Parsa and Partha Majumder . The book by Timothy Ross is an excellent for starting.
I am also sending one of my researches including qualitative and quantitative fuzzy modeling for further reading.
Article Route choice modelling in urban transportation networks usin...
I hope that will be helpful.
Dr. Y. Sazi Murat
There are several books regarding th basic understanding of fuzzy logics. Moreover, youtube can be a good platform for visual understanding.
Dear Halima Begum,
Concerning the point 3 and 4 of your question i suggest you to see links and attached files on topic.
https://www.researchgate.net/publication/267507685_Developing_a_fuzzy_Likert_scale_for_measuring_Xenophobia_in_Greece
https://core.ac.uk/download/pdf/1931893.pdf
https://www.amazon.fr/Advanced-Fuzzy-Approaches-Engineering-Science/dp/1522557091
https://www.sciencedirect.com/science/article/pii/S1877050917325097
https://www.pmi.org/learning/library/fuzzy-approach-critical-path-analysis-8986
https://www.investopedia.com/terms/f/fuzzy-logic.asp
Best regards
Read Fuzzy Set Theory—and Its
Applications, by H.-J. Zimmermann.
Also join e course of fuzzy logics from Coursera
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