Book Image

Reproducible Data Science with Pachyderm

By : Svetlana Karslioglu
Book Image

Reproducible Data Science with Pachyderm

By: Svetlana Karslioglu

Overview of this book

Pachyderm is an open source project that enables data scientists to run reproducible data pipelines and scale them to an enterprise level. This book will teach you how to implement Pachyderm to create collaborative data science workflows and reproduce your ML experiments at scale. You’ll begin your journey by exploring the importance of data reproducibility and comparing different data science platforms. Next, you’ll explore how Pachyderm fits into the picture and its significance, followed by learning how to install Pachyderm locally on your computer or a cloud platform of your choice. You’ll then discover the architectural components and Pachyderm's main pipeline principles and concepts. The book demonstrates how to use Pachyderm components to create your first data pipeline and advances to cover common operations involving data, such as uploading data to and from Pachyderm to create more complex pipelines. Based on what you've learned, you'll develop an end-to-end ML workflow, before trying out the hyperparameter tuning technique and the different supported Pachyderm language clients. Finally, you’ll learn how to use a SaaS version of Pachyderm with Pachyderm Notebooks. By the end of this book, you will learn all aspects of running your data pipelines in Pachyderm and manage them on a day-to-day basis.
Table of Contents (16 chapters)
1
Section 1: Introduction to Pachyderm and Reproducible Data Science
5
Section 2:Getting Started with Pachyderm
12
Section 3:Pachyderm Clients and Tools

Adding another pipeline step

Pachyderm pipelines can be chained into multi-step workflows. For each step, you will need to have a separate pipeline specification and a Docker image if you are using one. In this section, we will add another step to our image processing workflow. We will use the skimage.exposure.histogram module to create histograms of all the images we have in our contour output repository.

Example overview

A histogram is a visual representation of data that provides information about the image, such as the number of pixels, their intensity, and other information. Because we represent images as numerical data, we can create a histogram for each of the images we processed in the first step of our workflow – the contour pipeline. In this new step of the workflow, we will create histograms for each image that has landed in the contour output repository and save them in the histogram output repository in PNG format.

Here is an example of a histogram that...