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mlflow
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Open source platform for the machine learning lifecycle

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MLflow: A Machine Learning Lifecycle Platform

MLflow is a platform to streamline machine learning development, including tracking experiments, packaging code into reproducible runs, and sharing and deploying models. MLflow offers a set of lightweight APIs that can be used with any existing machine learning application or library (TensorFlow, PyTorch, XGBoost, etc), wherever you currently run ML code (e.g. in notebooks, standalone applications or the cloud). MLflow's current components are:

  • MLflow Tracking 
    _: An API to log parameters, code, and results in machine learning experiments and compare them using an interactive UI.
  • MLflow Projects 
    _: A code packaging format for reproducible runs using Conda and Docker, so you can share your ML code with others.
  • MLflow Models 
    _: A model packaging format and tools that let you easily deploy the same model (from any ML library) to batch and real-time scoring on platforms such as Docker, Apache Spark, Azure ML and AWS SageMaker.
  • MLflow Model Registry 
    _: A centralized model store, set of APIs, and UI, to collaboratively manage the full lifecycle of MLflow Models.

|docs| |labeling| |examples| |pypi| |conda-forge| |cran| |maven| |license| |downloads| |slack|

.. |docs| image:: https://img.shields.io/badge/docs-latest-success.svg :target: https://mlflow.org/docs/latest/index.html :alt: Latest Docs .. |labeling| image:: https://github.com/mlflow/mlflow/workflows/Labeling/badge.svg :target: https://github.com/mlflow/mlflow/actions?query=workflow%3ALabeling :alt: Labeling Action Status .. |examples| image:: https://github.com/mlflow/mlflow/workflows/Examples/badge.svg?event=schedule :target: https://github.com/mlflow/mlflow/actions?query=workflow%3AExamples+event%3Aschedule :alt: Examples Action Status .. |pypi| image:: https://img.shields.io/pypi/v/mlflow.svg :target: https://pypi.org/project/mlflow/ :alt: Latest Python Release .. |conda-forge| image:: https://img.shields.io/conda/vn/conda-forge/mlflow.svg :target: https://anaconda.org/conda-forge/mlflow :alt: Latest Conda Release .. |cran| image:: https://img.shields.io/cran/v/mlflow.svg :target: https://cran.r-project.org/package=mlflow :alt: Latest CRAN Release .. |maven| image:: https://img.shields.io/maven-central/v/org.mlflow/mlflow-parent.svg :target: https://mvnrepository.com/artifact/org.mlflow :alt: Maven Central .. |license| image:: https://img.shields.io/badge/license-Apache%202-brightgreen.svg :target: https://github.com/mlflow/mlflow/blob/master/LICENSE.txt :alt: Apache 2 License .. |downloads| image:: https://pepy.tech/badge/mlflow :target: https://pepy.tech/project/mlflow :alt: Total Downloads .. |slack| image:: https://img.shields.io/badge/[email protected]?logo=slack&logoColor=white&labelColor=3F0E40 :target:

Slack
_ :alt: Slack

.. Slack: https://join.slack.com/t/mlflow-users/sharedinvite/zt-g6qwro5u-odM7pRnZxNX_w56mcsHp8g

Installing

Install MLflow from PyPI via

pip install mlflow

MLflow requires

conda
to be on the
PATH
for the projects feature.

Nightly snapshots of MLflow master are also available

here 
_.

Documentation

Official documentation for MLflow can be found at https://mlflow.org/docs/latest/index.html.

Community

For help or questions about MLflow usage (e.g. "how do I do X?") see the

docs 
_ or
Stack Overflow 
_.

To report a bug, file a documentation issue, or submit a feature request, please open a GitHub issue.

For release announcements and other discussions, please subscribe to our mailing list ([email protected]) or join us on

Slack
_.

Running a Sample App With the Tracking API

The programs in

examples
use the MLflow Tracking API. For instance, run::
python examples/quickstart/mlflow_tracking.py

This program will use

MLflow Tracking API 
_, which logs tracking data in
./mlruns
. This can then be viewed with the Tracking UI.

Launching the Tracking UI

The MLflow Tracking UI will show runs logged in

./mlruns
at
_.
Start it with::
mlflow ui

Note: Running

mlflow ui
from within a clone of MLflow is not recommended - doing so will run the dev UI from source. We recommend running the UI from a different working directory, specifying a backend store via the
--backend-store-uri
option. Alternatively, see instructions for running the dev UI in the
contributor guide 
_.

Running a Project from a URI

The

mlflow run
command lets you run a project packaged with a MLproject file from a local path or a Git URI::
mlflow run examples/sklearn_elasticnet_wine -P alpha=0.4

mlflow run https://github.com/mlflow/mlflow-example.git -P alpha=0.4

See

examples/sklearn_elasticnet_wine
for a sample project with an MLproject file.

Saving and Serving Models

To illustrate managing models, the

mlflow.sklearn
package can log scikit-learn models as MLflow artifacts and then load them again for serving. There is an example training application in
examples/sklearn_logistic_regression/train.py
that you can run as follows::
$ python examples/sklearn_logistic_regression/train.py
Score: 0.666
Model saved in run 

$ mlflow models serve --model-uri runs://model

$ curl -d '{"columns":[0],"index":[0,1],"data":[[1],[-1]]}' -H 'Content-Type: application/json' localhost:5000/invocations

Contributing

We happily welcome contributions to MLflow. Please see our

contribution guide 
_ for details.

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