Utilizing the Web for Automatic Word Spacing

Gumwon HONG  Jeong-Hoon LEE  Young-In SONG  Do-Gil LEE  Hae-Chang RIM  

IEICE TRANSACTIONS on Information and Systems   Vol.E92-D   No.12   pp.2553-2556
Publication Date: 2009/12/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.E92.D.2553
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Natural Language Processing
word spacing,  word segmentation,  

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This paper presents a new approach to word spacing problems by mining reliable words from the Web and use them as additional resources. Conventional approaches to automatic word spacing use noise-free data to train parameters for word spacing models. However, the insufficiency and irrelevancy of training examples is always the main bottleneck associated with automatic word spacing. To mitigate the data-sparseness problem, this paper proposes an algorithm to discover reliable words on the Web to expand the vocabularies and a model to utilize the words as additional resources. The proposed approach is very simple and practical to adapt to new domains. Experimental results show that the proposed approach achieves better performance compared to the conventional word spacing approaches.