Spatio-temporal sentiment hotspot detection using geotagged photos
Spatio-temporal sentiment hotspot detection using geotagged photos
复制标题
使用地理标记照片进行时空情感热点检测
DOI:
10.1145/2996913.2996978
复制
发表时间:
2016
期刊:
影响因子:
--
通讯作者:
S. Newsam
中科院分区:
文献类型:
--
作者:
Yi Zhu;S. Newsam
We perform spatio-temporal analysis of public sentiment using geotagged photo collections. We develop a deep learning-based classifier that predicts the emotion conveyed by an image. This allows us to associate sentiment with place. We perform spatial hotspot detection and show that different emotions have distinct spatial distributions that match expectations. We also perform temporal analysis using the capture time of the photos. Our spatio-temporal hotspot detection correctly identifies emerging concentrations of specific emotions and year-by-year analyses of select locations show there are strong temporal correlations between the predicted emotions and known events.