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Everything on Ground Truth tagged “data” — 7 items.

AWS is buying DuckDB's company, not DuckDB News

Amazon has agreed to acquire DuckLabs, the 30-person Amsterdam team behind DuckDB, while the database itself stays MIT-licensed under the nonprofit foundation that holds its intellectual property -- a structure the founders set up years ago for exactly this moment.

Data augmentation: teaching a model more without collecting more Lesson

Data augmentation multiplies a training set by transforming existing examples in ways that change the input but not the answer, teaching a model which differences to ignore -- and the choice of transformation encodes exactly what you want it to be blind to.

Curriculum learning: why the order of the examples matters Lesson

Training a model on easy examples before hard ones can make it learn faster and end up better than showing the same data in random order, which is why frontier labs now build ladders of increasingly difficult tasks.

Sample complexity: how many examples does learning actually take? Lesson

Sample complexity is the number of training examples a learning method needs to reliably learn a given pattern. It is the formal way of asking why a child learns a word from three exposures while a language model needs the internet, and it is what separates a method that scales from one that merely works.

The data firms behind frontier AI sell judgment, not labels News

Mercor, Surge AI and AfterQuery have all converged on the same product line -- reinforcement-learning environments, scoring rubrics, expert demonstrations and human evaluations -- turning graded professional judgment into a commodity input for frontier models.

Stack Exchange API Tool

The free, key-less API behind Stack Overflow and its sister sites, which will return exact question, answer and user counts for any date range -- useful for checking claims about the site's decline yourself.

AI Data-Center Tracker Tool

A live map of the US AI data-center buildout covering 1,547 facilities across 46 states, 83 frontier sites with named megawatt figures, and 530 state and federal bills, refreshed hourly from public feeds with per-figure source and confidence labels.