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°ìÈÌŪ¤Ê¼êË¡¤Ç¤Ï¡¤¸À¸ì¥â¥Ç¥ë¤Ë$N$-gram¥â¥Ç¥ë¤ò»ÈÍѤ·¤Æ¤¤¤ë¡¥°Ê²¼¤Î¼°(3.1)¤ËËܸ¦µæ¤Ç»ÈÍѤ¹¤ëTri-gram¤Î·×»»¼°¤ò¼¨¤¹¡¥


\begin{displaymath}
\sum_{i=0}^{N-1}\log_2\left(\frac{count(E_{i-2},E_{i-1},E_i)}{count(E_{i-2},E_{i-1})}\right)
\end{displaymath} (3.1)

$E_i$¡§½ÐÎϱѸìñ¸ì¡¡$N$¡§±Ñʸ¤Îñ¸ì¿ô¡¡$count$¡§ÂÐÌõ³Ø½¬Ê¸¤ÎÉÑÅÙ¡¡



2019-03-29