[Objective] By collecting and visualizing the sentiment information from bullet-screen comments, we can extract the emotion features and the trend of online videos.[Context] The visualized information of bullet-screen comments can be considered as sentiment tags. Based on these labels of online video, a new retrieval model focusing on comment emotion can be raised.[Methods] According to sentence level sentiment analysis, the study model of sentiment analysis towards bullet-screen comments is developed, including process of constructing sentiment word dictionary, extracting sentiment words and calculating weight value of comments based on time series.[Results] Analyzing tools of radar map, tag cloud and trend-curve diagram are utilized to present the outcome.[Conclusions] Sentiment analysis and visualization methods utilized in bullet-screen comments can provide a new approach to retrieve online videos.
郑飏飏, 徐健, 肖卓. 情感分析及可视化方法在网络视频弹幕数据分析中的应用[J]. 现代图书情报技术, 2015, 31(11): 82-90.
Zheng Yangyang, Xu Jian, Xiao Zhuo. Utilization of Sentiment Analysis and Visualization in Online Video Bullet-screen Comments. New Technology of Library and Information Service, 2015, 31(11): 82-90.
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