A Method of Fine-grained Text Sentiment Analysis Based on Machine Learning
Guoqin Chang, Hua Huo · Neural Network World · 2018
Text sentiment analysis is an important part of social network information mining. It is also the theoretical foundation and basis of personalized recommendation, circle of interest classification and public opinion analysis. In view of the existing algorithms for feature extraction and weight calculation, we find that they fail to fully take into account the influence of emotion words. Therefore, this paper proposed a fine-grained short text sentiment analysis method based on Naive Bayes. To improve the calculation method of feature selection and weighting and proposed a more suitable sentiment analysis algorithm for features extraction named N-CHI and weight calculation named W-TF-IDF, increasing the proportion and weight of sentiment words in the feature words Through experimental analysis and comparison, the classification accuracy of this method is obviously improved compared with other methods.