Inferring Popularity of Domain Names with DNS Traffic: Exploiting Cache Timeout Heuristics. - Akihiro Shimoda; Keisuke Ishibashi; Kazumichi Sato; Masayuki Tsujino; Takeru Inoue; Masaki Shimura; Takanori Takebe; Kazuki Takahashi; Tatsuya Mori; Shigeki Goto (GLOBECOM, 2015)