Data Jujitsu – A Pragmatic Approach To Applying Data Science

Notes from Data Jujitsu – The Art of Turning Data into Product by Dr. DJ Patil. It is free and a PDF version can be found here. dj This is a great resource, if you are just starting to think about applying Data Science in your organization.  I like DJ’s incremental and very pragmatic approach to applying data science to your business and building a product. He has done it at LinkedIn (in fact the first time I heard the term “Data Science”, was from his LinkedIn post). Here are a few excerpts, a selection of fragments I marked up while reading the book. It is only about 16 pages so you should certainly give it a try if you are interested in the topic.

On Data Scientists:

Smart Data Scientists don’t just solve big, hard problems; they also have an instinct for making big problems small.

He proposes a very practical approach to solving problems.

Solve a simple piece that shows you whether there’s an interest.

In this lean startup world, there is a similar approach, known as building a minimum viable product (MVP), to assess whether there is interest and validate the assumptions we make about user needs.

On learning more about problems:

By using humans to solve problems initially, we can understand a great deal about the problem at a very low cost. The collaborative filter is a great example of starting with a simple product that becomes a more complex system later, once you know that it works.

How do you create engagement and revenue with your data product?

Some examples from his LinkedIn experience:

Giving data back to user creates additional value. By giving data back to the user, you can create both engagement and revenue.

Focus on actionability of data.

“Inverse interaction law” applies to most users: The more data you present, the less interaction. The best way to avoid data vomit is to focus on actionability of data. That is, what action do you want the user to take?

Putting Data Jujitsu into practice.

Data Jujitsu embraces the notion of minimum viable product and the simplest thing that could possibly work.

My favorite part is the advice to product builders.

With all products, you should ask yourself three questions:

1. What do you want the user to take away from this product?

2. What action do you want the user to take because of the product?

3. How should the user feel during and after using your product?

If your product is successful you will have plenty of time to play with complex machine learning algorithms, large computing clusters in the cloud…

It is 16 pages of practical wisdom that comes out of running data science teams and building products at LinkedIn. The wonderful gesture of  sharing his experience with us in a free eminently readable report,  deserves a salute.

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