Classification device and method, computer program product, and system for performing real-time classification of data streams

摘要

The invention relates to a method of performing a real-time classification of a data stream exchanged between a client and a server over a telecommunications network, the method comprising: - receiving a data segment of the data stream, the data segment indicating a data offset; - updating a bitmap table with the received data segment, wherein the bitmap table comprises a number of blocks of data, the data blocks being ordered by block sequence numbers in the bitmap table; - after updating the bitmap table, performing measurements (603) on a complete data block to obtain at least one measurement result without waiting for all the data blocks having block sequence numbers that are lower than the first block sequence number to be completed; - performing (607) a statistical analysis based on measurement results obtained for several complete blocks; - classifying (608) the data stream into one group among a plurality of groups, based on the performed statistical analysis at least.