中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2006, Vol. 25 ›› Issue (6): 162-164.

• • 上一篇    

Markov模型的熵与参数估计

胡必锦   

  1. 重庆交通大学信息与计算科学研究所,重庆 400074
  • 收稿日期:2005-08-29 修回日期:2005-10-08 出版日期:2006-12-15 发布日期:2015-05-18
  • 作者简介:胡必锦(1940—),男,湖北汉川人,教授,从事概率统计方面研究和教学工作

Estimating the parameters of Markov model using entropic function as a criterion

HU Bi-jin   

  1. Institute of Information and Calculatation Science,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2005-08-29 Revised:2005-10-08 Online:2006-12-15 Published:2015-05-18

摘要: Markov模型在标准文本和手写文字的自动识别领域中有特别重要的应用.在讨论如何由观测数据来估计模型参数的问题中,代替Baum辅助函数采用模型的熵特性引入判断函数,并利用此判断函数获得模型参数的重估算法.

关键词: Matkov模型, 熵, 判断函数, 参数重估

Abstract: Markov model plays an important role in the recognition field of standard text and hand-writing.In order to consider how to reestimate model-parameters from observation data,the criterion function introduced by the entropic propcrtles of the model replaces Baum auxiliary function,and formulas of reestimating model-parameters is obtained using the properties of the criterion function introduced by the entropic properties ofthemode1.

Key words: Mmkov model, entropic, criterion function, reestimating model-parameters

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