non overlapping splits

create_dataset.py

@@ -2,7 +2,7 @@
 
 from pathlib import Path
 import polars as pl
-from sklearn.model_selection import train_test_split
+from sklearn.model_selection import train_test_split, GroupShuffleSplit
 import argparse
 
 parser = argparse.ArgumentParser(description="Create dataset")
@@ -31,16 +31,21 @@ data = data.with_columns(
 ).drop(["age", "SOSPECHA_DIAGNOSTICA"])
 data = data.rename({"GES": "label"})
 
-X_train, X_test, y_train, y_test = train_test_split(
-    data["text"], data["label"], test_size=0.3, random_state=11, stratify=data["label"]
-)
-X_test, X_validation, y_test, y_validation = train_test_split(
-    X_test, y_test, test_size=1 / 3, random_state=11, stratify=y_test
+train_interim_splitter = GroupShuffleSplit(n_splits=1, train_size=0.7, random_state=11)
+train_indices, interim_indices = next(
+    train_interim_splitter.split(data["text"], data["label"], data["text"])
 )
+train = data[train_indices]
+interim = data[interim_indices]
 
-train = pl.DataFrame([X_train, y_train])
-test = pl.DataFrame([X_test, y_test])
-validation = pl.DataFrame([X_validation, y_validation])
+test_validation_splitter = GroupShuffleSplit(
+    n_splits=1, train_size=2 / 3, random_state=11
+)
+test_indices, validation_indices = next(
+    test_validation_splitter.split(interim["text"], interim["label"], interim["text"])
+)
+test = data[test_indices]
+validation = data[validation_indices]
 
 train.write_parquet("train.parquet")
 test.write_parquet("test.parquet")

test.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:77c46d42dac011ff5a86c23ce6f3f9e61c54edca76b02d80595f20a4b9704c5c
-size 7514117
+oid sha256:4e67181a7ce61e5fcc611c2ff8814ffa833c6fb80a288f951093cf55bc182056
+size 6279308

train.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ae1074962fb8e17d7d70260ddf7cda57397b9d6d447fa48f2d4119cc9649a26b
-size 26275161
+oid sha256:b68fb13156dbeae521dd3bdab3cd5b13cd7d92b0856fbc65076a727d50e1c303
+size 21686993

validation.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:2a010a1e0b5f8836946bec5fcb903dc6d14b3b4b4029e56b9a3d9fe4f5e9f1b8
-size 3769375
+oid sha256:979a62090e26d2f26c7f01fdd6b7c078498ef0dc9a48ab2d0e8871da9d13c97f
+size 3226491