👉 In machine learning and deep learning, a "subepoch" is typically used to describe an interval of time during which a model's parameters are being optimized. It can be seen as a window or period during which the model's parameters are changing, but it does not necessarily mean that the entire model has undergone any significant changes in its parameters over this subinterval. Instead, it refers to a specific portion of the model's training process where the model is being trained and updated with new data. For