From the course: Data Science Tools of the Trade: First Steps
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Types of machine learning
From the course: Data Science Tools of the Trade: First Steps
Types of machine learning
- [Instructor] There are two major types of machine learning, supervised and unsupervised. Supervised machine learning is aided by examples of inputs and their desired outputs. In this situation a machine learning or ML program tweaks its algorithm until it can produce best results based on the given examples. Here the roll of the algorithm is to capture a general rule that best maps the inputs to their corresponding outputs. We separate the example dataset under supervised ML into training and test datasets. As their names suggest the training dataset is only used for teaching an ML algorithm, while the test dataset is for evaluating the effectiveness of the same ML algorithm after training is over. We keep our test datasets much smaller then their counterpart for training because our focus needs to be on training rather then testing to accomplish as high accuracy as possible. Let's say that your ML goal is to automate the process of differentiating oranges, apples and bananas. In…
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