Title: Feature-based Thai Word Segmentation Speaker: Paisarn Charoenpornsawat Abstract: Word Segmentation is a problem in several Asian language that have no explicit word boundary delimiter, e.g. Chinese, Japanese, Korean and Thai. We propose to use feature based approaches for Thai word segmenation. A feature can be anything that tests for specific information in the context arround the word in question, such as context words and collocations. To automatically extract such features from a training corpus, we employ two learning algorithms, namely RIPPER and Winnow. Experimental results show that both algorithms appear to outperform the existing Thai word segmentation methods, especially for context-dependent strings.