Deep Learning-Based Sentiment Analysis for Social Media

Due to the continuous popularization of the Internet and mobile phones, people have gradually entered a participatory network era, and the rapid growth of social networks has caused an explosion of digital information content. It has turned online opinions, blogs, tweets and posts into highly valuable assets, allowing governments and businesses to gain insights from the data and make their strategies. Business organizations need to process and analyze these sentiments to investigate the data and gain business insights. In recent years, deep learning techniques have been very successful in performing sentiment analysis, which offers automatic feature extraction, rich representation capabilities and better performance compared with traditional feature-based techniques. The core idea is to extract complex features automatically from large amounts of data by building deep neural networks to generate up-to-date predictions. This paper reviews social media sentiment analysis methods based on deep learning. Firstly, it introduces the process of single-modal text sentiment analysis on social media. Then it summarizes the multimodal sentiment analysis algorithms for social media, and divides the algorithm into feature layer fusion, decision layer fusion and linear regression model according to different fusion strategies. finally, the difficulties of social media sentiment analysis based on deep learning and future research directions are discussed.