文章基本信息

标题：Improving on the Smoothing Technique for Obtaining Emission Probabilities in Hidden Markov Models
作者：Bolanle A. Ojokoh ; Olumide S. Adewale ; Samuel O. Falaki 等
期刊名称：Oriental Journal of Computer Science and Technology
印刷版ISSN：0974-6471
出版年度：2008
卷号：1
期号：1
页码：15-24
语种：English
出版社：Oriental Scientific Publishing Company
摘要：Hidden Markov Models (HMMs) have been shown to achieve good performance when applied to information extraction tasks. This paper describes the training aspect of exploring HMMs for the task of metadata extraction from tagged bibliographic references. The main contribution of this work is the improvement of the technique proposed by earlier researchers for smoothing emission probabilities in order to avoid the occurrence of zero values. The results show the effectiveness of the proposed method.
关键词：Hidden markov models ; parameters ; emission probabilities ; Smoothing ; Non-zero values