角色反演算法
作者:
基金项目:

Supported by the National Grand Fundamental Research 973 Program of China under Grant No.G1998030510 (国家重点基础研究发展规划(973)

  • 摘要
  • | |
  • 访问统计
  • |
  • 参考文献 [5]
  • |
  • 相似文献 [20]
  • |
  • 引证文献
  • | |
  • 文章评论
    摘要:

    给出了面向上下文无关语言的句法分析的一种计算机制:角色反演算法.这种机制通过引入句法范畴的"角色"这一概念以及相应的角色反演操作,用较小的空间代价在Chart算法中实现了较强的"预读"(look ahead)功能.这使其能节约大量的无用边,从而加速分析过程的推进.这种机制可以用于自然语言处理等多种应用领域.

    Abstract:

    A computational mechanism for context-free language parsing is proposed in this paper, which is called role inverse algorithm. The mechanism is based on the assignment of appropriate roles to categories according to their contexts. A kind of effectual 搇ook ahead?function is introduced into chart parsing by this mechanism at acceptable cost. As a result, lots of useless arcs in a chart can be avoided, so that a parsing process is accelerated. This mechanism can be used in many applications, such as natural language processing.

    参考文献
    [1]Aho AV, Ullman JD. The Theory of Parsing, Translation and Compiling. Englewood Cliffs, NJ: Prentice-Hall, 1985.
    [2]Aho AV, Ullman JD. Principles of Compiler Design. Reading, MA: Addison-Wesley, 1977.
    [3]Tomita M, Ng SK. The Generalized LR Parsing Algorithm. Boston: Kluwer, 1991. 1~16.
    [4]Russell SJ, Norvig P. Artificial Intelligence: a Modern Approach. Prentice-Hall, 1995. 696~703.
    [5]Graham SJ, Harrison MA, Ruzzo WL. An improved context-free recognizer. ACM Transactions on Programming Languages and Systems, 1980,2(3):415~462.
    网友评论
    网友评论
    分享到微博
    发 布
引用本文

白硕,张浩.角色反演算法.软件学报,2003,14(3):328-333

复制
分享
文章指标
  • 点击次数:3683
  • 下载次数: 5211
  • HTML阅读次数: 0
  • 引用次数: 0
历史
  • 收稿日期:2001-10-19
  • 最后修改日期:2002-04-10
文章二维码
您是第19793841位访问者
版权所有:中国科学院软件研究所 京ICP备05046678号-3
地址:北京市海淀区中关村南四街4号,邮政编码:100190
电话:010-62562563 传真:010-62562533 Email:jos@iscas.ac.cn
技术支持:北京勤云科技发展有限公司

京公网安备 11040202500063号