Data Mining Operation using SQL Query (Fuzzy Apriori Algorithm) - Coding it using SQL

Question

So I have this Table:

Trans_ID    Name    Fuzzy_Value    Total_Item  
100          I1  0.33333333        3  
100          I2  0.33333333        3  
100                


        

Answer 1

Step 1:

CREATE TABLE ITEMSET
SELECT Name, SUM(Fuzzy_Value)/COUNT(*) Fuzzy_Value
FROM trans
GROUP BY ID
HAVING ROUND(SUM(Fuzzy_Value), 1) >= 0.1

Note the ROUND() function - it's important, because you have values like .33333 that don't sum in a happy way.

Step 2:

ALTER TABLE ITEMSET ADD INDEX (Name)

SELECT a.Name Name1, b.Name Name2, SUM(Fuzzy_Value)/COUNT(*) Fuzzy_Value
FROM ITEMSET a JOIN ITEMSET b ON (a.Name != b.Name)
GROUP BY a.Name, b.Name
HAVING ROUND(SUM(Fuzzy_Value), 1) >= 0.1

Opps: I just noticed that you asked this half a year ago, so I guess there is no point in continuing. If you still need this answer leave a comment.