This study focusses on 1) develop a wisdom product recommender system in
Ubon Ratchathani province by collaborative filtering technique and clustering
technique, and 2 ) finding the effectiveness of the developed system. Five categories
of wisdom product OTOP consist of food, beverage, cloth, decoration, and herb. The
three main steps proposed in this study: 1) replacing the missing rating value of wisdom
products, 2) clustering rating data by X-Means, and 3) prediction model construct.
The results showed that a system could recommend wisdom products in the
area of Ubon Ratchathani Province. The performance evaluation of the User k-NN and
MF combine with X-Means has the lowest RMSE, MAE, and NMAE measures. The system
was able to recommend the top five wisdom products to the user.
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