| 摘要: |
| 由于词汇量大、句法结构复杂，很难或无法采用列表、ＬＬ、ＬＲ等建立扫描表方法，提高自然语言句法分析的效率．在传统的自顶向下规则扫描和ＡＴＮ网络分析算法基础上，本文提出了有界深度控制早期剪枝的分析技术．该技术可有效地限制分析的搜索范围，减少回溯，提高句法分析效率． |
| 关键词: 自然语言处理，句法分析，ATN网络，RTN网络 |
| DOI： |
| 分类号: |
| 基金项目: |
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| DEPTH LIMITED SEARCH AND PRUNING IN SYNTAX ANALYSIS OF NATURAL LANGUAGE PROCESSING |
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Wan Jiancheng
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| Abstract: |
| Because of large vocabulary and high complexity, it is difficult and almost impossible to make use of LL, LR and Well Formed Substring Table techniques to speed up syntactic analysis in Natural Language Processing. Based on the traditional Top-Down analysis of rules and ATN network, a depth limited search and early pruning technique is proposed and discussed in this paper, which greatly improves the efficiency of natural language parser, by restricting the search scope and reducing backtracking. |
| Key words: Natural language processing, syntax analysis, ATN network, RTN network. |
