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New Technology of Library and Information Service  2012, Vol. 28 Issue (3): 27-34    DOI: 10.11925/infotech.1003-3513.2012.03.05
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Contrast Analysis of Methods and Tools for Lemmatization
Wu Sizhu, Qian Qing, Hu Tiejun, Li Danya, Li Junlian, Hong Na
Institute of Medical Information, Chinese Academy of Medical Sciences, Beijing 100020, China
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Abstract  Combining theory with practice, this paper compares the methods and tools for lemmatization in word normalization. It summarizes the categories of lemmatization methods and analyses their features and disadvantages. Then it separately compares seven tools from aspects as the principle, POS tagger, lexicon, programming language, language, spell checker.It takes experiments with the datasets from WordSimith Tools to evaluate five lemmatizers. By comparing the results, it finds that the Specialist NLP Tools has a better effect than others.This paper provides an assistance for the study in choosing the appropriate method and tool for lemmatization.
Key wordsWord normalization      Stemming      Lemmatization      Lemma     
Received: 12 January 2012      Published: 19 April 2012



Cite this article:

Wu Sizhu, Qian Qing, Hu Tiejun, Li Danya, Li Junlian, Hong Na. Contrast Analysis of Methods and Tools for Lemmatization. New Technology of Library and Information Service, 2012, 28(3): 27-34.

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