IDENTIFICATION OF CONTENT BY METADATA

摘要

Systems and methods for identifying content in electronic messages are provided. An electronic message may include certain content. The content is detected and analyzed to identify any metadata. The metadata may include a numerical signature characterizing the content. A thumbprint is generated based on the numerical signature. The thumbprint may then be compared to thumbprints of previously received messages. The comparison allows for classification of the electronic message as spam or not spam.

主权项

1. A method for identifying content in electronic messages, the method comprising:
receiving a first electronic message over a communication network; executing instructions stored in memory, wherein execution of the instructions by a processor:
extracts metadata characterizing one or more images in the first electronic message;generates a first thumbprint based on the extracted metadata characterizing the one or more images in the first electronic message, the first thumbprint comprising a plurality of numerical values, each numerical value characterizing a different aspect of the one or more images, andsearches for matching thumbprints, the matching thumbprints matching with the first thumbprint of the first electronic message; and classifying matching electronic messages having the matching thumbprints, the matching electronic messages classified based on a classification of the first electronic message.