Add QM9 checksums, README.md and CITATIONS.bib.

PiperOrigin-RevId: 616084769

Author: machc

tensorflow_datasets/datasets/qm9/CITATIONS.bib

@@ -0,0 +1,8 @@
+@article{ramakrishnan2014quantum,
+  title={Quantum chemistry structures and properties of 134 kilo molecules},
+  author={Ramakrishnan, Raghunathan and Dral, Pavlo O and Rupp, Matthias and von Lilienfeld, O Anatole},
+  journal={Scientific Data},
+  volume={1},
+  year={2014},
+  publisher={Nature Publishing Group}
+}

tensorflow_datasets/datasets/qm9/README.md

@@ -0,0 +1,5 @@
+QM9 consists of computed geometric, energetic, electronic, and thermodynamic
+properties for 134k stable small organic molecules made up of CHONF. As usual,
+we remove the uncharacterized molecules and provide the remaining 130,831 in the
+original order (not shuffled). We provide a single 'train' split, users are
+expected to make their own validation/test splits.

tensorflow_datasets/datasets/qm9/__init__.py

@@ -0,0 +1,15 @@
+# coding=utf-8
+# Copyright 2024 The TensorFlow Datasets Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+

tensorflow_datasets/datasets/qm9/checksums.tsv

@@ -0,0 +1,3 @@
+https://figshare.com/ndownloader/files/3195395	964	af739d4a0fbe894a56f346ad6045ee1b74c58f8a8c9ef3fbfed920c9ad8b00f9	atomref.txt
+https://springernature.figshare.com/ndownloader/files/3195389	86144227	3a63848ac80691bdb8d41834b575afad345b9300d7a2db0c38adb7f6eaa8360c	dsgdb9nsd.xyz.tar.bz2
+https://springernature.figshare.com/ndownloader/files/3195404	486752	3aa5115d540b356de94791d4a74c3bf1ed91c469ecf52a4f5d7cc0506fe02e24	uncharacterized.txt

tensorflow_datasets/datasets/qm9/qm9_dataset_builder.py

@@ -30,22 +30,6 @@
 
 pd = tfds.core.lazy_imports.pandas
 
-_DESCRIPTION = """\
-QM9 consists of computed geometric, energetic, electronic, and thermodynamic
-properties for 134k stable small organic molecules made up of CHONF.
-"""
-
-_CITATION = """\
-@article{ramakrishnan2014quantum,
-  title={Quantum chemistry structures and properties of 134 kilo molecules},
-  author={Ramakrishnan, Raghunathan and Dral, Pavlo O and Rupp, Matthias and von Lilienfeld, O Anatole},
-  journal={Scientific Data},
-  volume={1},
-  year={2014},
-  publisher={Nature Publishing Group}
-}
-"""
-
 _HOMEPAGE = 'https://doi.org/10.6084/m9.figshare.c.978904.v5'
 
 _ATOMREF_URL = 'https://figshare.com/ndownloader/files/3195395'
@@ -145,15 +129,14 @@ class Builder(tfds.core.GeneratorBasedBuilder):
 
   def _info(self) -> tfds.core.DatasetInfo:
     """Returns the dataset metadata."""
-    return tfds.core.DatasetInfo(
-        builder=self,
-        description=_DESCRIPTION,
+    return self.dataset_info_from_configs(
         disable_shuffling=True,
         features=tfds.features.FeaturesDict({
             'num_atoms': tfds.features.Tensor(shape=(), dtype=np.int64),
             'charges': tfds.features.Tensor(shape=(29,), dtype=np.int64),
-            'Mulliken_charges': tfds.features.Tensor(shape=(29,),
-                                                     dtype=np.float32),
+            'Mulliken_charges': tfds.features.Tensor(
+                shape=(29,), dtype=np.float32
+            ),
             'positions': tfds.features.Tensor(shape=(29, 3), dtype=np.float32),
             'index': tfds.features.Tensor(shape=(), dtype=np.int64),
             'A': tfds.features.Tensor(shape=(), dtype=np.float32),
@@ -180,13 +163,13 @@ def _info(self) -> tfds.core.DatasetInfo:
             'SMILES_relaxed': tfds.features.Tensor(shape=(), dtype=np.str_),
             'InChI': tfds.features.Tensor(shape=(), dtype=np.str_),
             'InChI_relaxed': tfds.features.Tensor(shape=(), dtype=np.str_),
-            'frequencies': tfds.features.Tensor(shape=(None,),
-                                                dtype=np.float32),
+            'frequencies': tfds.features.Tensor(
+                shape=(None,), dtype=np.float32
+            ),
         }),
         # These are returned if `as_supervised=True` in `builder.as_dataset`.
         supervised_keys=None,
         homepage=_HOMEPAGE,
-        citation=_CITATION,
     )
 
   def _split_generators(

tensorflow_datasets/datasets/qm9/qm9_dataset_builder_test.py

@@ -29,7 +29,6 @@ class Qm9Test(testing.DatasetBuilderTestCase):
   qm9_dataset_builder._VALIDATION_SIZE = 1
   qm9_dataset_builder._TEST_SIZE = 1
 
-  SKIP_CHECKSUMS = True
   DATASET_CLASS = qm9_dataset_builder.Builder
 
   DL_EXTRACT_RESULT = {