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As someone outside the ML world, can anyone tell me what a “feature” is?
by cal85 4y ago
As someone outside the ML world, can anyone tell me what a “feature” is?
- uptownfunk 4y agoa column in a table basically
- simba-k 4y agoA feature is an input to a machine learning model. You can think of a model as a black-box function that takes features and outputs a prediction: prediction = model(features) For example, If you're building a recommendation model at Spotify, you'll transform a stream of user listens into features like: user's top genre in last 30 days. Featureform orchestrates the transformations on your infrastructure, manages the metadata like versioning, and allows you to serve them for training and inference.
- deleted 4y ago[deleted]
- Asafp 4y agoA feature is a data point to your model. it can be as simple as the amount of a transaction (for a fraud detection model) or as complex as the avg_number_of_transactions_in_the_past_7_days_with_over_1k_in_amount_that_were_pending_review. Since you have many features, and they constantly change and evolve and being consumed by many models you need a way to store them - thats how feature stores came to be. I personalty never used.
- otsaloma 4y agoSame as "explanatory variable" in the old (statistical) lingo.