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DOI:
Journal of Software:1995.6(6):358-365

自然语言句法分析的有界深度控制和早期剪枝
万建成
(山东工业大学计算机系,济南,250014)
DEPTH LIMITED SEARCH AND PRUNING IN SYNTAX ANALYSIS OF NATURAL LANGUAGE PROCESSING
Wan Jiancheng
()
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Received:June 14, 1993    Revised:October 08, 1993
> 中文摘要: 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.
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.
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万建成.自然语言句法分析的有界深度控制和早期剪枝.软件学报,1995,6(6):358-365

Wan Jiancheng.DEPTH LIMITED SEARCH AND PRUNING IN SYNTAX ANALYSIS OF NATURAL LANGUAGE PROCESSING.Journal of Software,1995,6(6):358-365