Category: Data engineering

The sigmoid kernel is a kernel trick method which uses a hyperbolic tangent function (tanh) to create an equivalent of a perceptron neural network.

Silhouette analysis is a method of calculating how well a particular data example fits within a cluster as compared to its neighboring clusters.

The term skillful is used to describe an AI model which is useful for its intended task. There are degrees of skill; some models are more useful than others.

In audio data processing and analysis, spectrogram is a type of plot in which time, frequency, and amplitude of an audio signal are depicted.

The stratified k-fold cross-validation is a k-fold cross-validation method in which each fold has a representative sample of data in datasets which exhibit class imbalance.