Trends Recognition in Journal Papers by Text Mining. - Masahiro Terachi; Ryosuke Saga; Hiroshi Tsuji (SMC, 2006)

Visualized Technique for Trend Analysis of News Articles. - Masahiro Terachi; Ryosuke Saga; Zhongqi Sheng; Hiroshi Tsuji (IEA/AIE, 2008)

FACT-Graph: Trend Visualization by Frequency and Co-occurrence. - Ryosuke Saga; Masahiro Terachi; Zhongqi Sheng; Hiroshi Tsuji (KI, 2008)