PURPOSE: To perform soft word confirming processing by confirming at least the 1st word of a maximum likelihood candidate word string not confirmed when the content of an evaluation value accumulating section exceeds a threshold value.
CONSTITUTION: A Kanji (Chinese character) is extracted from a Kana (Japanese syllabary) character string inputted to an input character string buffer 1 via a dictionary retrieval section 2, stored in a word buffer 3, the extracted words are checked for the propriety of connection, a connectable word is stored in a connectable buffer 5, its output is recognized (6) for appearance probability, and after the result is fed to a word buffer 7, the appearance probability is evaluated (8) totally and an evaluated value H is given. A maximum likelihood candidate word is extracted (21) based on the value H, the evaluated value of the maximum likelihood candidate word is accumulated (22), the content of the accumulating section 22 is compared with a threshold value of a threshold value storage section 23 establishing the confirming condition of the extracted word. When an output of the accumulation section 22 exceeds the threshold value, the 1st word of the maximum likelihood candidate word string not confirmed is confirmed (27).
YAMAUCHI YOSHITOSHI
FUJITA KATSUHIKO
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