Estimation of Connectivity between Paragraphs in a Mail Text 論文 Ryo Nishimura・Yasuhiko Watanabe・Masaki Murata・Yasuhito Oota・Yoshihiro Okada ·2010 ·『自然言語処理』 17(3) pp. 3_3-3_23 doi:10.5715/jnlp.17.3_3