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Machine Learning Operations

Work in progress for January 2023 version!

Repository for course 02476 at DTU.

Checkout the homepage!

Table of contents

{: .text-delta } 1. TOC {:toc}

Course details

Course responsible
- Postdoc Nicki Skafte Detlefsen, nsde@dtu.dk
- Professor Søren Hauberg, sohau@dtu.dk
5 ECTS (European Credit Transfer System), corresponding to 140 hours of work
3 week period of January 2023
Master course
Grade: Pass/not passed
Type of assessment: weekly project updates + final oral examination/presentation
Recommended prerequisites: DTU course 02456 (Deep Learning) or experience with the following topics:
- General understanding of machine learning (datasets, probability, classifiers, overfitting ect.)
- Basic knowledge about deep learning (backpropagation, convolutional neural networks, auto-encoders ect.)
- Coding in PyTorch. The first day we provide a number of exercises in PyTorch to get everyone's skills up-to-date as fast as possible.

Course setup

Start by cloning or downloading this repository

git clone https://github.com/SkafteNicki/dtu_mlops

If you do not have git installed (yet) we will touch upon it in the course. The folder will contain all exercise material for this course and lectures. Additionally, you should join our Slack channel which we use for communication:

https://join.slack.com/t/dtumlops/shared_invite/zt-1j1zx8t4h-nTbUPibR9xCz58erDyyikw

(link may be expired, write to me to gain access.)

Course organization

We highly recommend that when going through the material that you use the homepage which is the corresponding Github pages version of this repository that is more nicely rendered, that also includes some special HTML magic provided by just the docs.

The course is divided into sessions, denoted by capital S, and modules, denoted by capital M. A session corresponds to full day of work if you are following the course, meaning approx 9 hours of work. Each session (S) corresponds to topic within MLOps and consist of multiple modules (M) that each covers an tool within the session.

Importantly we differ between core modules and optional modules. Core modules will be marked by

{: .important }

Core module

at the top of their corresponding page. Core modules are importantly to go through to be able to pass the course. You are highly recommended to still do the optional modules.

MLOps: What is it?

Machine Learning Operations (MLOps) is a rather new field that has seen its uprise as machine learning and particular deep learning has become a technology that is widely available. The term itself is a compound of "machine learning" and "operations" and covers everything that has to do with the management of the production ML lifecycle.

The lifecycle of production ML can largely be divided into three phases:

Design: The initial phase starts with a investigation of the problem. Based on this analysis, a number of requirements can be prioritized of what we want our future model to actual do. Since machine learning requires data to be trained, we also investigate in this step what data we have and if we need to source it in some other way.
Model development: Based on the design phase we can actually begin to conjurer some machine learning algorithm to solve our problems. As always, the initial step often involve doing some data analysis to make sure that our model is actually learning the signal that we want it to learn. Secondly, is the machine learning engineering phase, where the particular model architecture is chosen. Finally, we also need to do validation and testing to make sure that our model is generalizing well.
Operations: Based on the model development phase, we now have a model and we actual want to use. The operations is where create an automatic pipeline that makes sure that whenever we make changes to our codebase they gets automatically incorporated into our model, such that we do not slow down production. Equally important is also the ongoing monitoring of already deployed models to make sure that they behave exactly as we specified them.

It is important to note that the three steps are in fact a cycle, meaning that we you have successfully deployed a machine learning model that is not the end of it. Your initial requirements may change, forcing you to revisit the design phase. Some new algorithm may show promising results, so you revisit the model development phase to implement this. And finally, you may try to cut the cost of running your model in production, making you revisit the operations phase, trying to optimize some steps.

The focus in this course is particular on the Operations part of MLOps as this is what many data scientist are missing in their toolbox to take all the knowledge they have about data processing and model development into a production setting.

Learning objectives

General course objective

Introduce the student to a number of coding practices that will help them organization, scale, monitor and deploy machine learning models either in a research or production setting. To provide hands-on experience with a number of frameworks, both local and in the cloud, for doing large scale machine learning models.

This includes:

Organize code in a efficient way for easy maintainability and shareability
Understand the importance of reproducibility and how to create reproducible containerized applications and experiments
Cable of using version control to efficiently collaborate on code development
Knowledge of continuous integration (CI) and continuous machine learning (CML) for automating code development
Being able to debug, profile, visualize and monitor multiple experiments to assess model performance
Cable of using online cloud based computing services to scale experiments
Demonstrate knowledge about different distributed training paradigms within machine learning and how to apply them
Deploy machine learning models, both locally and in the cloud
Conduct a research project in collaboration with follow students using the frameworks taught in the course
Have lots of fun and share memes! :)

References

Additional reading resources (in no particular order):

Ref 1 Introduction blog post for those that have never heard about MLOps and want to get an overview.
Ref 2 Great document from Google about the different levels of MLOps.
Ref 3 Another introduction to the principles of MLOps and the different stages of MLOps.
Ref 4 Great paper about the technical depth in machine learning.
Ref 5 Interview study that uncovers many of the pain points that ML engineers go through when doing MLOps.

Other courses with content similar to this:

Made with ML. Great online MLOps course that also covers additional topics on the foundations of working with ML.
Full stack deep learning. Another MLOps online course the does through the hole developer pipeline.
MLOps Zoomcamp. MLOps online course that includes many of the same topics.

License

I highly value open-source, and the content of this course is therefore free to use under the Apache 2.0 license. If you use parts of this course in your own work, please cite using:

@misc{skafte_mlops,
    author       = {Nicki Skafte Detlefsen},
    title        = {Machine Learning Operations},
    howpublished = {\url{https://github.com/SkafteNicki/dtu_mlops}},
    year         = {2022}
}

FredslundMagnus/dtu_mlops