A. I. Zamarin, K.V. Sazonov, V.V. Utkin

To prevent terrorist threats and deal with other specific tasks special units need to constantly evaluate the information transmitted in the open channels of communication, including to determine the content of its content. Due to the large number of messages semantic formats in modern data transmission systems, evaluation of content-the content of information by various existing methods (visual manual estimation, the use of techniques of pattern recognition) can not be done in real time, which may lead to missing messages of interest. The proposed article informative feature enables the lowest cost to ensure the effective evaluation of content-the content of messages.