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Free ways to dive into machine learning with Python and Jupyter Notebook. Notebooks, courses, and other links. (First posted in 2016.)
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Before we dive in, here are some notable projects and initiatives that might interest you as well.

  • AlgorithmWatchnewsletter — "a non-profit research and advocacy organization that is committed to watch, unpack and analyze automated decision-making (ADM) systems and their impact on society."
  • daviddao/awful-ai — "Awful AI is a curated list to track current scary usages of AI — hoping to raise awareness"
  • humanetech-community/awesome-humane-tech — "Promoting solutions that improve wellbeing, freedom and society"

Code against climate change

Dive Into Machine Learning

Dive into Machine Learning

Hi there! You might find this resource helpful if:

For some great alternatives, jump to the endstars11k or check out Nam Vu's guide, Machine Learning for Software Engineersstars26k.

Of course, there is no easy path to expertise. Also, I'm not an expert! I just want to connect you with some great resources from experts. Applications of ML are all around us. I think it's in the public interest for more people to learn more about ML, especially hands-on, because there are many different ways to learn.

Whatever motivates you to dive into machine learning, if you know a bit of Python, these days you can get hands-on with a machine learning "Hello World!" in minutes.

Let's get started

Tools you'll need

If you prefer local installation

  • Python. Python 3 is the best option.
  • Jupyter Notebook. (Formerly known as IPython Notebook.)
  • Some scientific computing packages:
    • numpy
    • pandas
    • scikit-learn
    • matplotlib

You can install Python 3 and all of these packages in a few clicks with the Anaconda Python distribution. Anaconda is popular in Data Science and Machine Learning communities. (Use whichever tool works for you. If you're unsure or need more context about using conda/virtualenv/poetry/pipenv, here's a very helpful guide)

Cloud-based options

Some options you can use from your browser:

For other options, see:

Let's go!

Learn how to use Jupyter Notebook (5-10 minutes). (You can learn by screencast instead.)

Now, follow along with this brief exercise: An introduction to machine learning with scikit-learn. Do it in ipython or a Jupyter Notebook, coding along and executing the code in a notebook.

I'll wait.

What just happened?

You just classified some hand-written digits using scikit-learn. Neat huh?

Dive in

A Visual Introduction to Machine Learning

Let's learn a bit more about Machine Learning, and a couple of common ideas and concerns. Read "A Visual Introduction to Machine Learning, Part 1" by Stephanie Yee and Tony Chu.

A Visual Introduction to Machine Learning, Part 1

It won't take long. It's a beautiful introduction ... Try not to drool too much!

"A Few Useful Things to Know about Machine Learning"

OK. Let's dive deeper.

Read "A Few Useful Things to Know about Machine Learning" by Prof. Pedro Domingos. It's densely packed with valuable information, but not opaque. (Don't worry if you don't understand it all yet.) Take some time with this one.

Jargon note

Explore another notebook

Next, code along with one or more of these notebooks.

Find more great Jupyter Notebooks when you're ready:

Immerse yourself

Pick one of the courses below and start on your way.

Prof. Andrew Ng's Machine Learning on Coursera

Prof. Andrew Ng's Machine Learning is a popular and esteemed free online course. I've seen it recommended often. And emphatically.

It's recommended to grab a textbook to use as an in-depth reference. The two I saw recommended most often were Understanding Machine Learning and Elements of Statistical Learning. You only need to use one of the two options as your main reference; here's some context/comparison to help you pick which one is right for you.

Public datasets and pet projects

You might like to have a pet project to play with, on the side. When you are ready for that, you could explore one of these: Awesome Public Datasetsstars49.3k,,, KKulma/climate-change-data

Tips for this course

Tips for studying on a busy schedule

It's hard to make time available every week. So, you can try to study more effectively within the time you have available. Here are some ways to do that:

Take my tips with a grain of salt

I am not a machine learning expert. I'm just a software developer and these resources/tips were useful to me as I learned some ML on the side.

Other courses

More free online courses I've seen recommended. (Machine Learning, Data Science, and related topics.)

Getting Help: Questions, Answers, Chats

Start with the support forums and chats related to the course(s) you're taking.

Check out and – such as the tag, machine-learning. There are some subreddits, like /r/LearningMachineLearning and /r/MachineLearning.

Don't forget about meetups. Also look for chat invitations on project pages and so on.

Some communities to know about!

Supplement: Learning Pandas well

You'll want to get more familiar with Pandas.

Supplement: Troubleshooting

These debugging tools can be used inside (or outside) a Jupyter notebook:

There are many more tools than that, but those might get you started, or might be especially useful while you're learning. Beyond learning, troubleshooting is more than just logs or debuggers, of course... there's also some MLOps links, later in this guide.

Assorted Tips and Resources

Risks - some starting points

"Machine learning systems automatically learn programs from data." Pedro Domingos, in "A Few Useful Things to Know about Machine Learning." The programs you generate will require maintenance. Like any way of creating programs faster, you can rack up technical debt.

Here is the abstract of Machine Learning: The High-Interest Credit Card of Technical Debt:

Machine learning offers a fantastically powerful toolkit for building complex systems quickly. This paper argues that it is dangerous to think of these quick wins as coming for free. Using the framework of technical debt, we note that it is remarkably easy to incur massive ongoing maintenance costs at the system level when applying machine learning. The goal of this paper is highlight several machine learning specific risk factors and design patterns to be avoided or refactored where possible. These include boundary erosion, entanglement, hidden feedback loops, undeclared consumers, data dependencies, changes in the external world, and a variety of system-level anti-patterns.

If you're reading this guide, you should read that paper. You can also listen to a podcast episode interviewing one of the authors of this paper.

That's not a comprehensive list, of course! They are just some gateways and starting-points. Know some other resources? Please share them, pull requests are welcome!

Peer review "aims to promote openness in scientific communication, particularly the peer review process."

More about
  • Open Peer Review: We provide a configurable platform for peer review that generalizes over many subtle gradations of openness, allowing conference organizers, journals, and other "reviewing entities" to configure the specific policy of their choice. We intend to act as a testbed for different policies, to help scientific communities experiment with open scholarship while addressing legitimate concerns regarding confidentiality, attribution, and bias.
  • Open Publishing: Track submissions, coordinate the efforts of editors, reviewers and authors, and host… Sharded and distributed for speed and reliability.
  • Open Access: Free access to papers for all, free paper submissions. No fees.
  • Open Discussion: Hosting of accepted papers, with their reviews, comments. Continued discussion forum associated with the paper post acceptance. Publication venue chairs/editors can control structure of review/comment forms, read/write access, and its timing.
  • Open Directory: Collection of people, with conflict-of-interest information, including institutions and relations, such as co-authors, co-PIs, co-workers, advisors/advisees, and family connections.
  • Open Recommendations: Models of scientific topics and expertise. Directory of people includes scientific expertise. Reviewer-paper matching for conferences with thousands of submissions, incorporating expertise, bidding, constraints, and reviewer balancing of various sorts. Paper recommendation to users.
  • Open API: We provide a simple REST API [...]
  • Open Source: We are committed to open source. Many parts of OpenReview are already in the OpenReview organization on GitHub. Some further releases are pending a professional security review of the codebase.
  • is created by Andrew McCallum’s Information Extraction and Synthesis Laboratory in the College of Information and Computer Sciences at University of Massachusetts Amherst

  • is built over an earlier version described in the paper Open Scholarship and Peer Review: a Time for Experimentation published in the ICML 2013 Peer Review Workshop.

  • OpenReview is a long-term project to advance science through improved peer review, with legal nonprofit status through Code for Science & Society. We gratefully acknowledge the support of the great diversity of OpenReview Sponsors––scientific peer review is sacrosanct, and should not be owned by any one sponsor.

Production, Deployment, MLOps

If you are learning about MLOps but find it overwhelming, these resources might help you get your bearings:

Recommended awesomelists to save/star/watch:

Easier sharing of deep learning models and demos

  • 🐣 Replicate "makes it easy to share a running machine learning model"
    • Easily try out deep learning models from your browser
    • The demos link to papers/code on GitHub, if you want to dig in and see how something works
    • The models run in containers built by cog, "containers for machine learning."
      • It's an open-source tool for putting models into reproducible Docker containers.
      • You can put models in containers with just Python and YAML.
    • There's an API for Replicate to run predictions for you

Deep Learning

Take note: some experts warn us not to get too far ahead of ourselves, and encourage learning ML fundamentals before moving onto deep learning. That's paraphrasing from some of the linked coursework in this guide — for example, Prof. Andrew Ng encourages building foundations in ML before studying DL. Perhaps you're ready for that now, or perhaps you'd like to get started soon and learn some DL in parallel to your other ML learnings.

When you're ready to dive into Deep Learning, here are some helpful resources.

More deep learning links

Collaborate with Domain Experts

Machine Learning can be powerful, but it is not magic.

Whenever you apply Machine Learning to solve a problem, you are going to be working in some specific problem domain. To get good results, you or your team will need "substantive expertise" / "domain knowledge." Learn what you can, for yourself... But you should also collaborate with experts. You'll have better results if you collaborate with subject-matter experts and domain experts.

Machine Learning and User Experience (UX)

I couldn't say it better:

Machine learning won’t figure out what problems to solve. If you aren’t aligned with a human need, you’re just going to build a very powerful system to address a very small—or perhaps nonexistent—problem.

That quote is from "The UX of AI" by Josh Lovejoy. In other words, You Are Not The User. Suggested reading: Martin Zinkevich's "Rules of ML Engineering", Rule #23: "You are not a typical end user"

Skilling up

What are some ways one can practice?

One way: competitions and challenges

You need practice. On Hacker News, user olympus commented to say you could use competitions to practice and evaluate yourself. Kaggle and ChaLearn are hubs for Machine Learning competitions. (You can find more competitions herestars2k or here.)

You also need understanding. You should review what Kaggle competition winners say about their solutions, for example, the "No Free Hunch" blog. These might be over your head at first but once you're starting to understand and appreciate these, you know you're getting somewhere.

Competitions and challenges are just one way to practice! Machine Learning isn't just about Kaggle competitions.

Another way: try doing some practice studies

Here's a complementary way to practice: do practice studies.

  1. Ask a question. Start exploring some data. The "most important thing in data science is the question" (Dr. Jeff T. Leek). So start with a question. Then, find real datastars49.3k. Analyze it. Then ...
  2. Communicate results. When you think you have a novel finding, ask for review. When you're still learning, ask in informal communities (some are linked below).
  3. Learn from feedback. Consider learning in public, it works great for some folks. (Don't pressure yourself yet though! Everybody is different, and it's good to know your learning style.)

How can you come up with interesting questions? Here's one way. Pick a day each week to look for public datasetsstars49.3k and write down some questions that come to mind. Also, sign up for Data is Plural, a newsletter of interesting datasets. When a question inspires you, try exploring it with the skills you're learning.

This advice, to do practice studies and learn from review, is based on a conversation with Dr. Randal S. Olson. Here's more advice from Olson, quoted with permission:

I think the best advice is to tell people to always present their methods clearly and to avoid over-interpreting their results. Part of being an expert is knowing that there's rarely a clear answer, especially when you're working with real data.

As you repeat this process, your practice studies will become more scientific, interesting, and focused. Also, here's a video about the scientific method in data science.)

More machine learning career-related links

More Data Science materials

Here are some additional Data Science resources:

Aside: Bayesian Statistics and Machine Learning

From the "Bayesian Machine Learning" overview on Metacademy:

... Bayesian ideas have had a big impact in machine learning in the past 20 years or so because of the flexibility they provide in building structured models of real world phenomena. Algorithmic advances and increasing computational resources have made it possible to fit rich, highly structured models which were previously considered intractable.

Here are some awesome resources for learning Bayesian methods.

(↑ Back to top)

More ways to "Dive into Machine Learning"

Here are some other guides to learning Machine Learning.

(↑ Back to top)


  1. Initiatives
  2. Dive into Machine Learning
  3. Let's get started
  4. Tools you'll need
  5. If you prefer local installation
  6. Cloud-based options
  7. Let's go!
  8. What just happened?
  9. Dive in
  10. A Visual Introduction to Machine Learning
  11. "A Few Useful Things to Know about Machine Learning"
  12. Jargon note
  13. Explore another notebook
  14. Immerse yourself
  15. Prof. Andrew Ng's Machine Learning on Coursera
  16. Public datasets and pet projects
  17. Tips for this course
  18. Tips for studying on a busy schedule
  19. Take my tips with a grain of salt
  20. Other courses
  21. Getting Help: Questions, Answers, Chats
  22. Some communities to know about!
  23. Supplement: Learning Pandas well
  24. Supplement: Troubleshooting
  25. Assorted Tips and Resources
  26. Risks - some starting points
  27. Peer review
  28. Production, Deployment, MLOps
  29. Easier sharing of deep learning models and demos
  30. Deep Learning
  31. Collaborate with Domain Experts
  32. Machine Learning and User Experience (UX)
  33. Skilling up
  34. More Data Science materials
  35. Aside: Bayesian Statistics and Machine Learning
  36. More ways to "Dive into Machine Learning"
Last Checked At: 2022-06-24T18:31:31.364Z


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