SYSTEM AND METHOD OF CLASSIFYING ELECTRONIC MAIL Russian patent published in 2024 - IPC G06Q10/107 H04L51/212 

FIELD: data processing.

SUBSTANCE: invention relates to systems and methods for detecting spam emails based on analysis of statistical data on received emails from clients. Result is achieved due to stages, at which: obtaining statistical data of messages of clients and result of classification of messages on the side of clients; excluding from further analysis data of messages, which relate to at least one of: messages, which are automatic replies; messages relating to internal correspondence of the organization; generating features based on statistical data for non-excluded messages; combining features into a single vector for each message; clustering of messages is carried out using a machine learning algorithm based on vectors of signs of messages; messages in each cluster are classified according to the following rules: if the cluster contains more than a predetermined threshold of messages classified on the client side as messages containing spam, classifying all messages in the cluster as messages containing spam; if the cluster contains not more than a predetermined threshold of messages classified as spam on the client side, the messages which were not classified as spam on the client side are classified using a machine learning model.

EFFECT: high accuracy of detecting spam emails.

17 cl, 4 dwg