Thai-English Cross-Language Transliterated Word Retrieval using Soundex Technique

This paper presents an algorithm for Thai-English crosslanguage transliterated word retrieval. The algorithm enables retrieval of documents containing either the English keywords or the corresponding English-to-Thai transliterated words. This is done by retrieving documents based on phonetic codes of keywords rather than the keywords themselves. The phonetic coding is based on the Soundex coding of Odell and Russell where the encoding table is slightly modified to incorporate Thai characters and the code is extended to unlimited length. Experimental results showed that a high recall and precision of more than 80% can be achieved especially when the phonetic codes are longer than four.