Checklist ROAI 2026 County Stage, Grades 9–10 · Task 1
Asteroids
English title: Asteroizi
Clean a corrupted CSV of asteroid coordinates and classify asteroids as carbon-rich or not from their 3D positions.
The task
Astronauts mapped a dense asteroid field and labelled the asteroids they analysed as carbon-rich (class 1) or not (class 0). Each row gives an asteroid's datapointID, its 3D coordinates X, Y, Z and, in training, its class.
The training file was corrupted in transmission; corrupted lines are those without a comma. Subtask 1 asks for the cleaned training file (the class of every valid row); subtask 2 asks for the class of each test asteroid, using a model trained on the cleaned data.
Abridged by SOTA from the official materials. The official statement has the exact rules, and it wins wherever this summary differs.
At a glance
- You get
train_data.csv(with corrupted lines) andtest_data.csv; the starter kit contains two plots of the cleaned training set.- You submit
- CSV with subtaskID, datapointID and answer (the class, copied from the cleaned training file for subtask 1, predicted for subtask 2).
- Scoring
- Subtask 1 (20 points): correctness of the answers. Subtask 2 (80 points): F1 for class 1, rising with F1; full marks at F1 ≥ 0.845.
- Rules
- On-site at partner county centres, in the prepared local Jupyter environment
- Only the packages listed in the round rules may be used
- Mobile phones and other electronic or information sources are forbidden in the room
- Format
- ROAI 2026 county stage, grades 9–10, 8 March 2026 (09:10–12:40 UTC on the judge; 3-hour test).