open-data
Everything on Ground Truth tagged “open-data” — 2 items.
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.
HiFi-UMI-2K Tool
Released dataset behind this week's handheld-only robot training result: high-fidelity two-handed human demonstrations captured with a head-mounted stereo rig and tracked grippers, with every trajectory reconstructed and rejected unless a target robot could physically replay it. Covers wiping, shirt folding, remote insertion and produce sorting. Directly usable for imitation-learning experiments without owning a teleoperation setup.