{"url":"/task/contextual-anomaly-detection","name":"Contextual Anomaly Detection","slug":"contextual-anomaly-detection","description_markdown":"The objective of Unsupervised Anomaly Detection is to detect previously unseen rare objects or events. Contextual Anomaly Detection is formulated such that the data contains two types of attributes, behavioral and contextual attributes. Behavioral attributes are attributes that relate directly to the process of interest whereas contextual attributes relate to exogenous but highly affecting factors in relation to the process.  Generally the behavioral attributes are conditional on the contextual attributes. \r\nSource: [Unsupervised Contextual Anomaly Detection using Joint Deep Variational Generative Models](https://arxiv.org/pdf/1904.00548.pdf)","categories":[{"name":"Computer Vision","url":"/area/computer-vision"},{"name":"Graphs","url":"/area/graphs"},{"name":"Methodology","url":"/area/methodology"},{"name":"Miscellaneous","url":"/area/miscellaneous"}],"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","slug_source":"derived"},"counts":{"papers_tagged":13,"papers_with_code":5,"benchmarks":0,"benchmark_tables_in_archive":0,"benchmark_tables_shown":0,"benchmark_tables_withheld_as_spam":0,"benchmark_definition":"a leaderboard table with at least one row; benchmark_tables_shown also counts the zero-row tables; benchmark_tables_in_archive adds the tables withheld as spam","datasets":0,"subtasks":0,"parent_tasks":1},"benchmarks":[],"datasets":[],"subtasks":[],"parent_tasks":[{"url":"/task/anomaly-detection","name":"Anomaly Detection"}],"papers":{"order":"repositories listed in the archive (desc), then date (desc); the archive holds no stars","population":"papers tagged with this task that list at least one repository in the archive","shown":5,"of":5,"tagged_in_all":13,"items":[{"url":"/paper/discovering-antagonists-in-networks-of","title":"Discovering Antagonists in Networks of Systems: Robot Deployment","date":"2025-02-27","arxiv_id":"2502.20125","repositories_listed":1,"syntology":null},{"url":"/paper/robust-and-explainable-contextual-anomaly","title":"Explainable Contextual Anomaly Detection using Quantile Regression Forests","date":"2023-02-22","arxiv_id":"2302.11239","repositories_listed":1,"syntology":null},{"url":"/paper/neural-contextual-anomaly-detection-for-time","title":"Neural Contextual Anomaly Detection for Time Series","date":"2021-07-16","arxiv_id":"2107.07702","repositories_listed":1,"syntology":null},{"url":"/paper/self-attentive-multi-context-one-class","title":"Self-Attentive, Multi-Context One-Class Classification for Unsupervised Anomaly Detection on Text","date":"2019-07-01","arxiv_id":null,"repositories_listed":1,"syntology":null},{"url":"/paper/twitch-plays-pokemon-machine-learns-twitch","title":"Twitch Plays Pokemon, Machine Learns Twitch: Unsupervised Context-Aware Anomaly Detection for Identifying Trolls in Streaming Data","date":"2019-02-17","arxiv_id":"1902.06208","repositories_listed":1,"syntology":null}],"syntology_records":0,"syntology_note":"a paper without a record is not a recorded non-run: it may lack an arXiv id or simply be absent from the graph layer"},"description_links":{"kept":0,"unwrapped_to_text":0,"bare_urls_linked":0,"relative_images_dropped":0,"rule":"internal links are kept only when the target slug exists in the catalog"},"syntology":{"read_at":"2026-09-24T18:15:14+00:00","claim":"Per-sample execution status on synthesized fixtures ('ran N of M samples'); not a correctness claim and not a ranking signal.","status_vocabulary":{"ran_honours":"ran, honoured the contract we drafted","ran_violates":"ran, violated the contract we drafted","ran_draft_wrong":"ran; our contract draft was wrong, not the code","ran_fixture":"ran; our fixture could not drive it","ran":"ran on a synthesized input","unverified":"unverified (harvested, no recorded run)"}},"not_shown":{"libraries":"the archive has no per-task library table","trend_sparklines":"the Trend column of the benchmarks table was a rendered image; it is not in the archive","social_and_latest_sorts":"stars and social signals are not in the archive"}}