Polarity estimation system, information delivery systems, and polarity estimation method, evaluation polarity estimation program and polarity estimation program,

摘要

By using the reputation information evaluation polarity is known, to be able to estimate the evaluation polarity for the reputation information unknown evaluation polarity. A polarity estimation system for estimating the evaluation polarity indicating reputation information whether a negative or a positive polarity estimation system, the reputation information storage unit for previously storing reputation information evaluation polarity is known, and a, a polarity estimation means based on the reputation ratings polarity reputation information stored in the storage unit in advance is known for estimating the evaluation of the polarity reputation information is unknown evaluation polarity.