Oxidation-State Assignment

Choosing optimized weights for the base models
Choosing optimized weights for the base models
Proxy R² ≈ 0.91 ~7k OQMD Ensemble (soft voting)

What: Assign oxidation states in MOFs with a soft-voting ensemble of four diverse base learners.

Why: Reproduced and extended a published approach (DOI) to validate best practices on a custom OQMD/ICSD subset.

How: Curated ~7k ICSD-tagged MOF entries from OQMD; manual target assignment; tuned four base models via mixed strategies (random search, simulated annealing, TPE) and applied weighted voting.

Results: Proxy R² ≈ 0.91 on ~7k samples; custom weighting (scale 1:10) and custom candidate models improved the ensemble by ~~6% vs. uniform voting + paper's ensemble.

GitHub