Research on Chinese Microblog Sentiment Classification Based on TextCNN-BiLSTM Model

Currently, most sentiment classification models on microblogging platforms analyze sentence parts of speechand emoticons without comprehending users’ emotional inclinations and grasping moral nuances. This studyproposes a hybrid sentiment analysis model. Given the distinct nature of microblog comments, the modelemploys a combined stop-word list and word2vec for word vectorization. To mitigate local information loss,the TextCNN model, devoid of pooling layers, is employed for local feature extraction, while BiLSTM isutilized for contextual feature extraction in deep learning. Subsequently, microblog comment sentiments arecategorized using a classification layer. Given the binary classification task at the output layer and the numeroushidden layers within BiLSTM, the Tanh activation function is adopted in this model. Experimental findingsdemonstrate that the enhanced TextCNN-BiLSTM model attains a precision of 94.75%. This represents a1.21%, 1.25%, and 1.25% enhancement in precision, recall, and F1 values, respectively, in comparison to theindividual deep learning models TextCNN. Furthermore, it outperforms BiLSTM by 0.78%, 0.9%, and 0.9%in precision, recall, and F1 values. KCI Citation Count: 0