A Multi-Aspect Comparison and Evaluation on Thai Word Segmentation Programs

Abstract. Word segmentation is an important task in natural language processing, especially for languages without word boundaries, such as Thai language. Many Thai word segmentation programs have been de-veloped. Researchers and developers in Thai documents usually spend a tremendous amount of time in studying and trying different Thai word segmentation programs. This paper presents the performance of six Thai word segmentation programs which include Libthai, Swath, Wordcut, CRF++, Thaisemantics, and Tlexs. Based on experimental results, we compare these programs in terms of usage, response time, time outs, and relevance