Abstract— This paper studies the combination of multiple
classifiers with a prototyped-based supervised clustering
algorithm, namely SGNG, for Thai printed character
recognition. The proposed classification system consists of two
steps. First, the prototypes obtained by the SGNG are firstly
used to roughly classify an unknown input positioning around a
training dataset. Second, several classifiers, such as Bayesian
classifiers and neural network, are combined by using the
Median rule for detail classification. Our experimental result
shows that the combination of multiple classifiers gives
recognition rates better that individual classifier. In
particularly, the combination of multiple classifiers with the
SGNG can improve accuracy of recognition rates and
classification time.