FMNN:Text Classification Model Fused with Multiple Neural Networks

Abstract

Text classification is a basic and important task in natural language processing.Most of the text classification methods based on deep learning only focus on a single model structure.The single structure lacks the ability to simultaneously capture and utilize both global and local semantic features.Besides,the deepening of the network will lose more semantic information.In order to overcome the above problems,a text classification model FMNN which is a text classification model fused with multiple neural network is proposed in this paper.The model combines the performances of BERT,RNN,CNN and Attention while minimizing the network depth.BERT is used as the embedding layer to obtain the matrix representation of the text.BiLSTM and Attention are used to jointly extract the global semantic features of the text.CNN is used to extract the local semantic features of the text at multiple granularities.The global semantic features and local semantic features are applied to the softmax classifier respectively.The results are finally fused by arithmetic average.The experimental results on three public data sets and one judicial data set show that the proposed FMNN model achieves higher accuracy rate,and the accuracy rate on the judicial data set reaches 90.31%,which proves that the model has good practical value.

Keywords

• text classification|deep learning|global semantic features|local semantic features|semantic loss|fusion