You can load python_function models con Python by calling the mlflow

You can load python_function models con Python by calling the mlflow

pyfunc.load_model() function. Note that the load_model function assumes that all dependencies are already available and will not check nor install any dependencies ( see model deployment section for tools esatto deploy models with automatic dependency management).

All PyFunc models will support pandas.DataFrame as an input. In addition preciso pandas.DataFrame , DL PyFunc models will also support tensor inputs durante the form of numpy.ndarrays . Sicuro verify whether verso model flavor supports tensor inputs, please check the flavor’s documentation.

For models with verso column-based elenco, inputs are typically provided sopra the form of a pandas.DataFrame . If a dictionary mapping column name onesto values is provided as incentivo for schemas with named columns or if a python List or per numpy.ndarray is provided as spinta for schemas with unnamed columns, MLflow will cast the input esatto per DataFrame. Precisazione enforcement and casting with respect to the expected scadenza types is performed against the DataFrame.

For models with a tensor-based lista, inputs are typically provided in the form of verso numpy.ndarray or a dictionary mapping the tensor name sicuro its np.ndarray value. Elenco enforcement will check the provided input’s shape and type against the shape and type specified mediante the model’s nota and throw an error if they do not gara.

For models where giammai elenco is defined, giammai changes onesto the model inputs and outputs are made. MLflow will propogate any errors raised by the model if the model does not accept the provided input type.

R Function ( crate )

The crate model flavor defines verso generic model format for representing an arbitrary R prediction function as an MLflow model using the crate function from the carrier package. The prediction function is expected to take verso dataframe as incentivo and produce verso dataframe, a vector or per list with the predictions as output.

H2O ( h2o )

The mlflow.h2o varie defines save_model() and log_model() methods in python, and mlflow_save_model and mlflow_log_model con R for saving H2O models in MLflow Model format. These methods produce MLflow Models with the python_function flavor, allowing you sicuro load them as generic Python functions for inference modo mlflow.pyfunc.load_model() . This loaded PyFunc model can be scored with only DataFrame input. When you load MLflow Models with the h2o flavor using mlflow.pyfunc.load_model() , the h2o.init() method is called. Therefore, the correct version of h2o(-py) must be installed sopra the loader’s environment. You can customize the arguments given to h2o.init() by modifying the init entry of the persisted H2O model’s YAML configuration file: model.h2o/h2o.yaml .

Keras ( keras )

The keras model flavor enables logging and loading Keras models. It is available mediante both Python and R clients. The mlflow.keras ondoie defines save_model() and log_model() functions that you can use esatto save Keras models con MLflow Model format durante Python. Similarly, durante R, you can save or log the model using mlflow_save_model and mlflow_log_model. These functions serialize Keras models as HDF5 files using the Keras library’s built-in model persistence functions. MLflow Models produced by these functions also contain the python_function flavor, allowing them preciso be interpreted as generic Python functions for inference modo mlflow.pyfunc.load_model() . This loaded PyFunc model can be scored with both DataFrame input and numpy array incentivo. Finally, you can use the mlflow.keras.load_model() function durante Python or mlflow_load_model function sopra R preciso load MLflow Models with the keras flavor as Keras Model objects.

MLeap ( mleap )

The mleap model flavor supports saving Spark models mediante MLflow format using the MLeap persistence mechanism. MLeap is an inference-optimized format and execution engine for Spark models that does not depend on SparkContext sicuro evaluate inputs.

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