{"url":"/dataset/pylon-benchmark","name":"Pylon Benchmark","full_name":"Pylon Table Union Search Benchmark","description_markdown":"We create a new dataset from GitTables, a data lake of 1.7M tables extracted from CSV files on GitHub. The benchmark comprises 1,746 tables including union-able table subsets under topics selected from Schema.org: scholarly article, job posting, and music playlist. We end up with these three topics since we can find a fair number of union-able tables of them from diverse sources in the corpus (we can easily find union-able tables from a single source but they are less interesting for table union search as simple syntactic methods can identify all of them because of the same schema and consistent value representations).","description_withheld":null,"homepage":"https://github.com/superctj/pylon","introduced_date":"2022-07-15","introduced_date_note":null,"introduced_by":{"paper":"/paper/pylon-table-union-search-through-contrastive","title":"Pylon: Semantic Table Union Search in Data Lakes","first_author":"Tianji Cong","url":null},"license":{"name":"CC BY","url":null},"modalities":[{"name":"Tabular","url":"/datasets/modality/tabular"}],"tasks":[{"name":"Table Search","url":"/task/table-search","datasets_with_task":"/datasets/task/table-search"}],"languages":[{"name":"English","url":"/datasets/language/english"}],"variants":["Pylon Benchmark"],"data_loaders":[],"num_papers_in_archive":1,"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28"},"benchmarks":[],"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."}