Rare earthsRare Earth Separation IntelligencePurity classification

Rare Earth Purity Classification

Classify product purity band from stage chemistry and impurity indicators. Higher macro-F1 is better.

Metric

Macro-F1

Baseline

Rare Earth Purity Classifier

Submissions

Updated

2026-06-20

Leaderboard

Rank	Submitter	Model	Type	Score	Date
1	h.novak	purity-transformer	Research implementation	0.905	2026-06-20
2	matereal	ree-purity-classifier	Reference model	0.870	2026-05-30
3	a.costa	gbm-purity	Baseline model	0.861	2026-05-24
4	l.zhang	logreg-baseline	Baseline model	0.792	2026-05-15

Entries are reference and research submissions on the open split. Scores are illustrative and require plant-specific validation for industrial use.

Task definition

Dataset

Synthetic Rare Earth Separation Dataset

Evaluation metric

Macro-F1

Submission rules

1
Use the official train/test split.
2
Report macro-F1 across all purity bands.
3
Include class-wise metrics in the submission notes.

Discussion

s.
s.iyer
ML researcher · 2d
Question
Are ensemble submissions allowed, or single-model only? Worth stating explicitly in the rules.
7
ma
matereal
Maintainer · 2d
Comment
Ensembles are allowed if reproducible from the submitted artifacts. We'll clarify in the next rules revision.
5

Open by design. Private by principle.

Build on open metal intelligence, keep your plant advantage private

Explore open reference models and datasets, or start a private technical discussion. Open industry knowledge and private customer advantage are kept separate.

Explore Open Models Read Trust & IP Charter