Browse iConferences by Author "Akiyama, Toyokazu"
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Wang, Yuanyuan; Maruyama, Naoki; Yasui, Goki; Kawai, Yukiko; Akiyama, Toyokazu (iSchools, 2017)Nowadays, students utilize MOOCs (e.g., Coursera, edX) and SNS services (e.g., LINE, Twitter, Facebook, Tumblr) in courses for learning. This paper presents a Twitter-based recommendation system to search and communication, ...
Wang, Yuanyuan; Nakaoka, Yusuke; Siriaraya, Panote; Kawai, Yukiko; Akiyama, Toyokazu (iSchools, 2018)This paper presents a novel train delay detection method based on topic propagation analysis of geo-tagged tweets between railway stations. Our goal is to detect traffic accidents and to predict train delays in railway ...