基于门控机制和卷积神经网络的中文文本情感分析模型

Chinese text sentiment analysis model based on gated mechanism and convolutional neural network

针对中文数据的特殊性导致判别时容易产生噪声信息,使用传统卷积神经网络(CNN)无法深度挖掘情感特征信息等问题,提出了一种结合情感词典的双输入通道门控卷积神经网络(DC-GCNN-SL)模型。首先,使用情感词典的词语情感分数对句子中的词语进行标记,从而使网络获取情感先验知识,并在训练过程中有效地去除了输入句子的噪声信息;然后,在捕获句子深度情感特征时,提出了基于GTRU的门控机制,并通过两个输入通道的文本卷积运算实现两种特征的融合,控制信息传递,有效地得到了更丰富的隐藏信息;最后,通过softmax函数输出文本情感极性。在酒店评论数据集、外卖评论数据集和商品评论数据集上进行了实验。实验结果表明,与文本情感分析的其他模型相比,所提模型具有更好的准确率、精确率、召回率和F1值,能够有效地获取句子的情感特征。

The particularity of Chinese data leads to noise information generation in the process of discrimination,and the traditional Convolutional Neural Network(CNN)cannot deeply mine emotional feature information.In order to solve the problems,a Dual Channel Gated Convolutional Neural Network model with Sentiment Lexicon(DC-GCNN-SL)was proposed.Firstly,the word sentiment score of sentiment lexicon was used to mark the words in the sentences,so that the prior knowledge of emotion was obtained by the network,and the noise information of the input sentence was effectively removed in the training process.Secondly,a gated mechanism based on GTRU(Gated Tanh-ReLU Unit)was proposed while capturing the deep sentiment features of the sentences,and the text convolution operation of the two input channels was used to fuse the two features,control the information transmission,and obtain more abundant hidden information effectively.Finally,the text sentiment polarity was output through the softmax function.The experiments were carried out on hotel review dataset,takeaway review dataset and commodity review dataset.Experimental results show that,compared with other models of text sentiment analysis,the proposed model has better accuracy,precision,recall and F1-score,and can effectively obtain the emotional features of sentences.