Can anyone help me to remove confusion from my mind because I am confused little bit about the difference between AHP, Fuzzy AHP, Fuzzy Logic and Fuzzy Delphi method. I am new one in this field with very little experience and I solved some problematic situation using AHP. which was related to selection of DBMS. Appreciate short answer from anyone.
This is an interesting collection of techniques and methods.
Do you have a standard example that you would like to use to compare the methods?
Have fun,
thank you for your reply. actually i wrote report for selection of DBMS for ehealth id card using AHP. and I make some criteria for it. like OS supported, Clustering , security , license, backup and recovery etc. and keep three alternative systems (s1,s2,s3). and i did all the process and out coming result is s3. but still there is need to work on to divide this single criteria in multi criteria like OS to Window and Linux etc . but I didn't do that in my report because I have very less experience with that. please can you help how to relate my work related to DBMS to solve with Fuzzy Delphi method. thanks in advance.
Siraj:
Lets look at four pairs of things:
Numbers --> Fuzzy Numbers
AHP ==> Fuzzy AHP
Delphi ==> Fuzzy Delphi
Logic ==> Fuzzy Logic
Numbers represent an exact quantity (1, 4, 8.7, and so on), which are applied in context to quantify things (1 desk, 4 chairs, 8.7 dollars..)
Fuzzy numbers represent a range of values associated with characteristics and attributes of things.
A tall man, a large meal, a fast car are concepts that can all be described using fuzzy numbers. A fuzzy number gives a range of values for the concept and a membership quantity for each value. For example, given the concept of a tall man, the value of 5 feet tall may be assigned a membership quantity of zero (0), meaning a 5 foot tall man is not tall. A value of 7 feet tall may be assigned a membership quantity of (1), meaning a 7 foot tall man is tall. Fuzzy number have a range of values.
The listed standard methods use standard numbers, while the listed fuzzy methods use fuzzy numbers.
Have fun,
Joe
Thank you Sir, for such a nice reply. Please if you don't mind can you drop your email here i want to share my report with you which I have wrote on DBMS selection using AHP. I need your suggestion and need your help to give me some idea how to relate my work to solve similar situation using Fuzzy Delphi Method . Thanks
AHP is a method for multicriteria decision making that help decision makers to select a choice between alternatives.
Fuzzy logic is an approach that deals with unceratin data and imprecious knowledge.
When decision makers needs to take a decision in uncertainty circumstances , they can use Fuzzy AHP.
I have published an article entitled "Designing Integrated Management Criteria of Creative Ideation Based on Fuzzy Delphi Analytical Hierarchy Process". I have declared this difference in my paper. Link: Article Designing Integrated Management Criteria of Creative Ideatio...
In AHP we use crisp number whereas in Fuzzy we deploy linguistics criteria along with Fuzzy numbers for fuzzyfication and defuzzfication.
This article shows the difference between AHP and fuzzy AHP. Hope it helps you.
https://www.ticaret.edu.tr/uploads/Kutuphane/dergi/f11/M00178.pdf
Logic vs Fuzzy Logic is quite simple:
in logic your only have true or false values (0 and 1) and it helps you answering questions such as "1+1=2?" but in fuzzy logic you can have values in between true or false such as partially true like "the power point tool can export files into pdf and xlm files?" the answer is partially true (0.5) because it can only export in pdf. that is a fuzzy logic answer.
https://www.ticaret.edu.tr/uploads/Kutuphane/dergi/f11/M00178.pdf
good article to understand the differences
(a)AHP is a scientific, pairwise comparison based MCDM method for decision-making in the selection of best potential alternatives.
(b)Fuzzy logic employs a number ranging from 0-1 based on its membership function
(c) Fuzzy AHP is a similar approach like AHP with a difference in that it uses TFNs instead of crips number. It removes the vagueness and uncertainty in decision-making.
(d) Fuzzy Delphi Method is a combinatorial method using Fuzzy AHP and Delphi.
- Badges
- Science topic
- Similar topics
- Mathematics