datasets
2 free lessons tagged datasets across AI. Each one is a short sequence of focused steps with narration and a five-question quiz at the end — take them in any order, no signup required.
Views: Turning a Question Into a Query
A view is a filtered, sorted or sliced window onto a dataset, built by chaining stages and computed lazily without touching the underlying data. This lesson covers what that buys, the distinction between filtering samples and filtering the labels inside them that catches nearly everyone, how views compose with the App and with evaluation, and when a view should be turned into a real subset.
The Case for Looking at Your Data
Most computer vision projects are limited by their dataset rather than their architecture, and most teams cannot see their dataset. This lesson covers why a tool for inspecting visual data exists, the data model FiftyOne uses to make a dataset queryable rather than a folder of files, why it sits on a database, and where curation fits against annotation and experiment tracking.

