To calculate an identification score and a posterior probability for each number of errors.
A method of calculating the identification score for each number of errors includes: a local score local error calculation process; identification score calculation process for each number of errors; and posterior probability calculation process for each number of errors. The identification score calculation process for each number of errors calculates a local score, the number of local errors, the identification score for each number of errors of a lattice by inputting the lattice, a forward accumulative score for each number of errors, and a backward accumulative score for each number of errors. The posterior probability calculation process for each number of errors calculates the identification score of the lattice for each number of errors, the forward accumulative score for each number of errors, the backward accumulative score for each number of errors, and the posterior probability that a correct symbol sequence includes each directed arc included in the lattice by inputting the local score, for each number of errors.
COPYRIGHT: (C)2010,JPO&INPIT
Atsushi Nakamura
| JP9090975A |
| WO2007105409A1 |
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Yukio Nakamura
Yoshimura Munehiro
Taku Kusano