chore: import upstream snapshot with attribution

2026-07-13 13:38:23 +08:00
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+Sebastian Raschka, 2015
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+# Python Machine Learning - Supplementary Datasets
+
+## The Large Movie Review Dataset
+
+- Used in chapters 8 and 9
+
+The movie dataset converted into a 2-column CSV format: The first column (`review`) contains the text, and the second column (`sentiment`) denotes the polarity, where 0=negative and 1=positive. The first 25,000 are the training samples and the remaining 25,000 rows are the test samples from the "Large Movie Review Dataset v1.0," respectively.
+
+- Source: [http://ai.stanford.edu/~amaas/data/sentiment/](http://ai.stanford.edu/~amaas/data/sentiment/)