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You need to enable JavaScript to run this app. OpenML Search Datasets 5.6k Tasks 261.5k Flows 17.9k Runs 10.1M Collections 198 Tasks 198 Runs 198 Benchmarks 28 Task Suites 28 Run Studies 28 Task Types 8 Measures 228 Data qualities 228 Eval. Measures 228 Eval. Procedures 228 Learn Documentation Blog API's Contribute Meet up About us Terms & Citation Minify Dark Search Sign In Sign Up OpenML A worldwide machine learning lab Machine learning research should be easily accessible and reusable. OpenML is an open platform for sharing datasets, algorithms, and experiments - to learn how to learn better, together. I shared a new data setI found a better model!OpenML Datasets Sign Up to start tracking and sharing your own work. OpenML is open and free to use. AI-READY DATA All datasets are uniformy formatted, have rich, consistent metadata, and can be loaded directly into your favourite environments. ML LIBRARY INTEGRATIONS Pipelines and models can be shared directly from your favourite machine learning libraries. No manual steps required. A TREASURE TROVE OF ML RESULTS Learn from millions of reproducible machine learning experiments on thousands of datasets to make informed decisions. FRICTIONLESS MACHINE LEARNING Easily import and export datasets, pipelines, and experiments from your favourite machine learning environments and libraries. IN PYTHON (WITH SCIKIT-LEARN) from sklearn import ensemble from openml import tasks, runs clf = ensemble.RandomForestClassifier() task = tasks.get_task(3954) run = runs.run_model_on_task(clf, task) run.publish() IN R (WITH MLR3) library(mlr3oml) library(mlr3) task = tsk("oml", task_id = 31) resampling = rsmp("oml", task_id = 31) resample(task, lrn("classif.rpart"), resampling) Learn more about the OpenML APIs ALL MACHINE LEARNING DATA, ORGANIZED For every dataset, find which tasks (e.g. classification) need to be solved. For every task, find all evaluation runs that people did, and how well their models performed. For every run, find model details, evaluations, and the exact algorithm pipelines used. For every flow (pipeline), find all the evaluation runs to see how well it performed on different tasks. Learn how OpenML works REPRODUCIBLE MACHINE LEARNING OpenML records exactly which datasets and library versions are used, so that nothing gets lost. For every experiment, the exact pipeline structure, architecture, and all hyperparameter settings are automatically stored. OpenML flows wrap around tool-specific implementations that can be serialized and later deserialized to reproduce models and verify results. Read stories wraprebuildoriginal runreproduced run LEARNING TO LEARN Run systematic benchmarks, large-scale experiments, learn from previous experiments, and automate machine learning itself. BENCHMARKING SUITES Easy-to-use, curated suites of machine learning tasks to standardize and improve benchmarking. DocumentationPaper AUTOML BENCHMARK An open, ongoing, and extensible benchmark framework for Automated Machine Learning systems. DocumentationPaper AUTOML TOOLS Several AutoML tools use OpenML to speed up the search for the best models, includingautosklearnSageMaker AutoMLAzure AutoMLGAMA LEARN TO TUNE Learn from millions of experiments how to tune algorithms:parameter importancedefault learningsymbolic defaults Read more research based on OpenML JOIN OPENML Join a vibrant ecosystem of machine learning researchers and enthousiasts. MACHINE LEARNING EXPERTS Share your work, show how it's done, and track how often it is viewed and reused DATA OWNERS Share your data to challenge and collaborate with the machine learning community ALGORITHM DEVELOPERS Integrate your tools with OpenML to easily import and export data and experiments SOFTWARE ENGINEERS OpenML is open source, get involved and make it even better and more useful Learn how to contribute to OpenML SUPPORT OPENML We gratefully acknowledge the support from our sponsors and supporting organizations.Become a sponsor GET STARTED NOW Sign Up OpenML guides Get Involved About Us * New dataset * New task * New collection * Your profile * Sign out