ENG: Formulation of the problem. Intrusion-Detection Systems (IDS) are used to detect
network attacks in real time. In the information and telecommunication system (ITS) of
railway transport, the problem of a large volume of network traffic arises, since standard
approaches to data processing cease to be effective. One of the most effective approaches
to classifying a large amount of data is the use of neural network technology. This approach
allows detecting not only already known network attacks, but also detecting new ones.