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README.md

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+---
+license: cc-by-4.0
+configs:
+- config_name: default
+  data_files:
+  - split: train
+    path: "train.parquet"
+  - split: val
+    path: "val.parquet"
+  - split: test
+    path: "test.parquet"
+pretty_name: MP-20 Polymorph Split
+---
+# MP-20-polymorph-split  
+  
+A new split of the MP-20 dataset which contains 45,229 structures of varying composition and structure, within which there are only 37,217 unique reduced compositions. The new split ensures that polymorph pairs are grouped within the training, validation, or test sets, and that the N-arity of the split distributions match that of their combined one. The following dataset split has been cultivated from the MP-20 dataset ([Jain et al., 2013; doi: 10.1063/1.4812323](https://doi.org/10.1063/1.4812323)).
+
+---
+
+The original MP-20 dataset was published under the Creative Commons Attribution 4.0 International License by:  
+`Anubhav Jain, Shyue Ping Ong, Geoffroy Hautier, Wei Chen, William Davidson Richards, Stephen Dacek, Shreyas Cholia, Dan Gunter, David Skinner, Gerbrand Ceder and Kristin A. Persson`
+

test.parquet

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+size 10313863

train.parquet

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+size 30035555

val.parquet

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