Thawatchai Suwanapong

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Most keyword extraction systems utilize external knowledge bases such as lexicon, ontological databases, keyword lists and training corpus for extracting keywords. The drawbacks of using external knowledge bases are formatting incompatibility, domain constraint, and updating difficulty. This work proposes a keyword extraction system, which uses only the(More)
Aliases discovered in Thai articles are challenging. We apply a standard vector space model to explore and match aliases with formal names or each others. On first construct a term-by-document matrix (TDM), which contains term frequency of term occurring in document collection assuming that all terms exist in the typed named entity dictionary. Normalization(More)
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