... this is a potential approach for such languages like Vietnamese, lack of standard lexicon or annotated corpus Moreover, we believe that our segmentation approach can benefit for many other computer ... there are many approaches performing text categorization task Nevertheless, the best performance approach for English may not be the best one for Vietnamese To find the most appropriate text categorization ... ways of segmentation, i.e the important words are segmented correctly while less important words may be segmented incorrectly Table represents the human judgment for our word segmentation approach...