Global Property Prediction: A Benchmark Study on Open-Source, Perovskite-like Datasets

Felix Mayr, Alessio Gagliardi

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Screening combinatorial space for novel materials, such as perovskite-like ones for photovoltaics, has resulted in a high amount of simulated high-throughput data and analysis thereof. This study proposes a comprehensive comparison of structural fingerprint-based machine learning models on seven open-source databases of perovskite-like materials to predict band gaps and energies. It shows that none of the given methods, including graph neural networks, are able to capture arbitrary databases evenly, while underlining that commonly used metrics are highly database-dependent in typical workflows. In addition, the applicability of variance selection and autoencoders to significantly reduce fingerprint size indicates that models built with common fingerprints only rely on a submanifold of the available fingerprint space.

Original languageEnglish
Pages (from-to)12722-12732
Number of pages11
JournalACS Omega
Volume6
Issue number19
DOIs
StatePublished - 18 May 2021

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