| Markov模型的熵与参数估计 |
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| 引用本文： | 胡必锦.Markov模型的熵与参数估计[J].重庆交通学院学报,2006,25(6):162-164. |
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| 作者姓名： | 胡必锦 |
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| 作者单位： | 重庆交通大学信息与计算科学研究所 重庆400074 |
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| 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.
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| 关 键 词： | Markov模型 熵 判断函数 参数重估 |
| 收稿时间： | 2005-08-29 |
| 修稿时间： | 2005-10-08 |
Estimating the parameters of Markov model using entropic function as a criterion |
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| HU Bi-jin.Estimating the parameters of Markov model using entropic function as a criterion[J].Journal of Chongqing Jiaotong University,2006,25(6):162-164. |
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| Authors: | HU Bi-jin |
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| Institution: | Institute of Information and Calculatafion Science, Chongqing Jiaotong University, Chongqing 400074, China |
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| 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 properties 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 of the model. |
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| Keywords: | Markov model entropic criterion function reestimating model-parameters |
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