DEIM Forum 2009 C6-2 † †† † † †† E-mail: †{kaji,kitsure}@tkl.iis.u-tokyo.ac.jp, ††ryoko@sacral.c.u-tokyo.ac.jp Mining Neologisms from a Large Diachronic Web Archive for Supporting Linguistic Research Nobuhiro KAJI† , Ryoko UNO†† , and Masaru KITSUREGAWA† † Institute of Industrial Science, University of Tokyo †† Graduate School of Arts and Sciences, University of Tokyo E-mail: †{kaji,kitsure}@tkl.i