摘要
提出一种将隐马尔科夫模型(HMM)和小波神经网络(WNN)相结合的混合模型应用于信息抽取。其首先将网页节点特征化,并依据网页内容建立不同的HMM,之后通过WNN调用相应的HMM用于信息抽取。HMM无法准确抽取的重要信息,利用WNN做辅助判别。实验证明,该混合模型可以提高Web信息抽取的精准度。
A hybrid model was presented for information extraction by using the combined Hidden Markov Models（HMM） and Wavelet Neural Network （WNN）.It first characterize the node of the web and establish different HMM according to the content of the web. Then appropriate HMM is selected by WNN for information extraction.As HMM can not extract important information accurately, WNN is used as an auxilary tool to do the discrimination. Experiments show that this hybrid model can improve the accuracy of Web information extraction.
出处
《微计算机信息》
2012年第5期136-138,共3页
Control & Automation
