{"url":"/dataset/samm-long-videos","name":"SAMM Long Videos","full_name":null,"description_markdown":"The **SAMM Long Videos** dataset consists of 147 long videos with 343 macro-expressions and 159 micro-expressions. The dataset is FACS-coded with detailed Action Units.\r\n\r\nSource: [SAMM Long Videos: A Spontaneous Facial Micro- and Macro-Expressions Dataset](/paper/samm-long-videos-a-spontaneous-facial-micro)","description_withheld":null,"homepage":"http://www2.docm.mmu.ac.uk/STAFF/M.Yap/dataset.php","introduced_date":null,"introduced_date_note":null,"introduced_by":{"paper":"/paper/samm-long-videos-a-spontaneous-facial-micro","title":"SAMM Long Videos: A Spontaneous Facial Micro- and Macro-Expressions Dataset","first_author":"Chuin Hong Yap","url":null},"license":null,"modalities":[{"name":"Videos","url":"/datasets/modality/videos"}],"tasks":[{"name":"Face Alignment","url":"/task/face-alignment","datasets_with_task":"/datasets/task/face-alignment"},{"name":"Optical Flow Estimation","url":"/task/optical-flow-estimation","datasets_with_task":"/datasets/task/optical-flow-estimation"},{"name":"Micro Expression Recognition","url":"/task/micro-expression-recognition-1","datasets_with_task":"/datasets/task/micro-expression-recognition-1"},{"name":"Micro-Expression Spotting","url":"/task/micro-expression-spotting","datasets_with_task":"/datasets/task/micro-expression-spotting"}],"languages":[],"variants":["SAMM Long Videos"],"data_loaders":[],"num_papers_in_archive":8,"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."}