{"url":"/dataset/amazon-polarity-1","name":"Amazon Polarity","full_name":null,"description_markdown":"The Amazon Polarity dataset is a set of reviews from Amazon. The dataset is constructed by taking review scores 1 and 2 as negative (class 1), and 4 and 5 as positive (class 2). Reviews with a score of 3 are ignored. The dataset spans a period of 18 years, including approximately 35 million reviews up to March 2013. Each class in the dataset has 1,800,000 training samples and 200,000 testing samples. The dataset includes product and user information, ratings, and a plaintext review.","description_withheld":null,"homepage":"https://huggingface.co/datasets/mteb/amazon_reviews_multi","introduced_date":null,"introduced_date_note":null,"introduced_by":null,"license":null,"modalities":[],"tasks":[{"name":"Sentiment Analysis","url":"/task/sentiment-analysis","datasets_with_task":"/datasets/task/sentiment-analysis"}],"languages":[],"variants":["Amazon Polarity"],"data_loaders":[],"num_papers_in_archive":1,"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28"},"benchmarks":[{"leaderboard":"/sota/sentiment-analysis-on-amazon-polarity","task":"Sentiment Analysis","dataset_variant":"Amazon Polarity","rows":0,"metrics":["Accuracy","F1"],"first_row_in_archive_order":null,"note":"rows are the archive's own order at snapshot; nothing here re-ranks them"}],"papers_with_a_benchmark_row":[],"syntology_totals":{"read_at":"2026-09-24T18:15:14+00:00","papers_with_samples":0,"samples_harvested":0,"samples_ran":0,"samples_unverified":0,"pointer_only_for_licence":0,"papers_with_no_sample_that_ran":0,"note":"the per-paper counts above, summed; not a rate"},"papers_note":"The archive never published its papers-using-dataset list; these are papers with a leaderboard row on this dataset's benchmarks."}