Element of an ML model based on a neural network
The most common type of ML model is a neural network, which predicts the behavior of an object based on data from its behavior in the recent past. This ML model is based on the Forecaster detector.
If the difference between the model prediction and the actual observed values exceeds a certain threshold, the Forecaster detector detects an anomaly in the monitored asset behavior and registers an incident. The cumulative indicator of the difference between the predicted values and the actual values (cumulative prediction error) is referred to as the MSE (mean squared error) in the user interface.
The MSE values graph and the MSE threshold which, when exceeded, causes the Forecaster to detect an incident, are displayed in the Monitoring and History sections under the tag graphs. If an ML model contains multiple elements, you can select a model element to view the MSE values calculated by that element.
Kaspersky MLAD model builder supports the following neural network architectures for elements of an ML model:
- Dense. Element of an ML model with a fully connected architecture. When creating an ML model element, you must specify the multipliers for calculating the number of neurons on inner layers and the activation functions on them.
- TCN. Element of an ML model with a hierarchical time-based convolutional architecture. When creating an ML model element, you must specify the activation function, filter size, extensions on layers, and the number of encoders.
- CNN. Element of an ML model with a convolutional architecture. When creating an ML model element, you must specify the number of convolutional layers, the size and number of filters on layers, and the size of the maximum sampling window (MaxPooling).
- RNN. Element of an ML model with a recurrent architecture. When creating an ML model element, you must specify the number of GRU neurons on layers and the number of time-distributed neurons on the layers of the decoder.
- Transformer. Element of an ML model with a transformer architecture. When creating an element of the ML model, the number of attention heads and the number of transformer encoders are specified.
