Amazon SageMaker now supports incremental learning for its built-in visual recognition algorithms – Image Classification and Object Detection. With incremental learning, you can initialize your model with knowledge learned from prior training. This enables the model to preserve the knowledge gained previously and extend it by training the model on new data. It becomes useful when your training data comes in batches over time. With this capability, you do not need to retrain your model from scratch every time you get new data, saving you time and compute resources.
Source:: Amazon AWS