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Transfer learning accelerates model training using pretrained models from "summary" of Machine Learning For Dummies by John Paul Mueller,Luca Massaron
Transfer learning is a powerful concept in machine learning that leverages pretrained models to accelerate the training process of new models. Instead of starting from scratch with training a new model, transfer learning allows you to take advantage of the knowledge learned by a pretrained model on a similar task. By using the knowledge encoded in the pretrained model, you can significantly reduce the time and computational resources needed to train a new model. The idea behind transfer learning is to transfer the knowledge gained by a model trained on a large dataset to a new model that is intended for a related but slightly different task. This transfer of knowledge can help the new model learn faster and achieve better performance than if it were trained from scratch. Instead of learning everything from the beginning, the new model can focus on learning the specific nuances of the new task, building on the general knowledge already acquired from the pretrained model. One common way to implement transfer learning is to use the pretrained model as a feature extractor. In this approach, the pretrained model is used to extract features from the input data, which are then fed into a new model for further training. By leveraging the pretrained model's ability to extract meaningful features from the data, the new model can learn more efficiently and effectively. Transfer learning has been successfully applied in various domains, including computer vision, natural language processing, and speech recognition. By reusing knowledge from pretrained models, researchers and practitioners can develop new models with higher accuracy and faster training times. Transfer learning is a valuable tool in the machine learning toolbox, allowing for the rapid development of state-of-the-art models for a wide range of tasks.
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