Takahiro Tanaka Norio Maeda Daisuke Katagami Katsumi Nitta Characterized Argument Agent for Training Partner. 377-389 2007 JSAI http://dx.doi.org/10.1007/978-3-540-78197-4_35 conf/jsai/2007 db/conf/jsai/jsai2007.html#TanakaMKN07