Book Image

Practical Deep Learning at Scale with MLflow

By : Yong Liu
5 (1)
Book Image

Practical Deep Learning at Scale with MLflow

5 (1)
By: Yong Liu

Overview of this book

The book starts with an overview of the deep learning (DL) life cycle and the emerging Machine Learning Ops (MLOps) field, providing a clear picture of the four pillars of deep learning: data, model, code, and explainability and the role of MLflow in these areas. From there onward, it guides you step by step in understanding the concept of MLflow experiments and usage patterns, using MLflow as a unified framework to track DL data, code and pipelines, models, parameters, and metrics at scale. You’ll also tackle running DL pipelines in a distributed execution environment with reproducibility and provenance tracking, and tuning DL models through hyperparameter optimization (HPO) with Ray Tune, Optuna, and HyperBand. As you progress, you’ll learn how to build a multi-step DL inference pipeline with preprocessing and postprocessing steps, deploy a DL inference pipeline for production using Ray Serve and AWS SageMaker, and finally create a DL explanation as a service (EaaS) using the popular Shapley Additive Explanations (SHAP) toolbox. By the end of this book, you’ll have built the foundation and gained the hands-on experience you need to develop a DL pipeline solution from initial offline experimentation to final deployment and production, all within a reproducible and open source framework.
Table of Contents (17 chapters)
1
Section 1 - Deep Learning Challenges and MLflow Prime
4
Section 2 –
Tracking a Deep Learning Pipeline at Scale
7
Section 3 –
Running Deep Learning Pipelines at Scale
10
Section 4 –
Deploying a Deep Learning Pipeline at Scale
13
Section 5 – Deep Learning Model Explainability at Scale

Implementing our first DL experiment with MLflow autologging

Let's use the DL sentiment classifier we built in Chapter 1, Deep Learning Life Cycle and MLOps Challenges, and add MLflow autologging to it to explore MLflow's tracking capabilities:

  1. First, we need to import the MLflow module:
    import mlflow

This will provide MLflow Application Programming Interfaces (APIs) for logging and loading models.

  1. Just before we run the training code, we need to set up an active experiment using mlflow.set_experiment for the current running code:
    EXPERIMENT_NAME = "dl_model_chapter02"
    mlflow.set_experiment(EXPERIMENT_NAME)
    experiment = mlflow.get_experiment_by_name(EXPERIMENT_NAME)
    print("experiment_id:", experiment.experiment_id)

This sets an experiment named dl_model_chapter02 to be the current active experiment. If this experiment does not exist in your current tracking server, it will be created automatically.

Environment Variable

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