... stages. For written languages that have WBMs, such as for the Korean language, the majority of recentresearch has been based on a traditional WS ap-proach (Nakagawa, 2004). The first step of the traditional ... probabilities of all possible combinations of xt−2, xt−1, xt+1 and xt+2values. The model is trained by using the relative fre-quency information of the training data, and a smoothing technique is applied ... take place. For the Korean lan-guage, many researchers have adopted a traditional WS approach, which eliminatesall spaces in the user input and re-insertsproper word boundaries. Unfortunately,such...