| 面向中文自动分词的可扩展式电子词典研究 |
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| 引用本文： | 贺胜,曲维光,许超. 面向中文自动分词的可扩展式电子词典研究[J]. 计算机工程与应用, 2008, 44(21): 199-201. DOI: 10.3778/j.issn.1002-8331.2008.21.054 |
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| 作者姓名： | 贺胜 曲维光 许超 |
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| 作者单位： | 南京师范大学,文学院,南京,210097;南京师范大学,计算机科学系,南京,210097 |
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| 基金项目： | 国家自然科学基金 , 江苏省自然科学基金 |
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| 摘 要： | 在中文自动分词及词性标注系统中，电子词典是系统的重要组成部分，也是影响系统性能的重要因素之一。介绍了电子词典应该具备的查询功能及常用的组织结构，给出了一种结构为系统词典+用户词典的可扩展式电子词典机制。其系统词典是基于首字Hash散列的逐字二分词典结构，用户词典采用基于首字Hash散列的链接表词典结构，具有很强的扩展性和实用性。
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| 关 键 词： | 电子词典 词典结构 自动分词 Hash |
| 收稿时间： | 2008-04-30 |
| 修稿时间： | 2008-5-20 |
Extendable digital dictionary for automatic Chinese word segmentation |
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| HE Sheng,QU Wei-guang,XU Chao. Extendable digital dictionary for automatic Chinese word segmentation[J]. Computer Engineering and Applications, 2008, 44(21): 199-201. DOI: 10.3778/j.issn.1002-8331.2008.21.054 |
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| Authors: | HE Sheng QU Wei-guang XU Chao |
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| Affiliation: | 1.School of Chinese Language and Literature，Nanjing Normal University，Nanjing 210097，China 2.Deptartment of Computer Science，Nanjing Normal University，Nanjing 210097，China |
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| Abstract: | Digital dictionary is an important part in automatic Chinese word segmentation and part of speech tagging,which is also a vital factor affecting system performance.This thesis introduces the necessary searching functions and common components for a digital dictionary and proposes an extendable mechanism which consists of system dictionary and user dictionary.The system dictionary is indexed with initial character hash table characterized with character-based binary tree structure.The user's dictionary is also indexed with initial character hash table but augmented with linking structure.Experiment shows that the system is extendable in practice. |
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| Keywords: | digital dictionary dictionary structure automatic word segmentation hash |
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