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

Deploying locally for batch and web service inference

For development and testing purposes, we usually need to deploy our model locally to verify it works as expected. Let's see how to do it for two scenarios: batch inference and web service inference.

Batch inference

For batch inference, follow these instructions:

  1. Make sure you have completed Chapter 7, Multi-Step Deep Learning Inference Pipeline. This will produce an MLflow pyfunc DL inference model pipeline URI that can be loaded using standard MLflow Python functions. The logged model can be uniquely located by the run_id and model name as follows:
    logged_model = 'runs:/37b5b4dd7bc04213a35db646520ec404/inference_pipeline_model'

The model can also be identified by the model name and version number using the model registry as follows:

logged_model = 'models:/inference_pipeline_model/6'
  1. Follow the instructions under the Batch inference at-scale using PySpark UDF function section...