Data Shapley
Published August 19, 2019
16 min
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    We talk often about which features in a dataset are most important, but recently a new paper has started making the rounds that turns the idea of importance on its head: Data Shapley is an algorithm for thinking about which examples in a dataset are most important. It makes a lot of intuitive sense: data that’s just repeating examples that you’ve already seen, or that’s noisy or an extreme outlier, might not be that valuable for using to train a machine learning model. But some data is very valuable, it’s disproportionately useful for the algorithm figuring out what the most important trends are, and Data Shapley is explicitly designed to help machine learning researchers spend their time understanding which data points are most valuable and why. Relevant links:
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