Posts Tagged ‘ data ’

Scala for Machine Learning [book review]

April 9, 2015
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Scala for Machine Learning [book review]

Nicolas, Patrick R. (2014) Scala for Machine Learning, Packt Publishing: Birmingham, UK. Full disclosure: I received a free electronic version of this book from the publisher for the purposes of review. There is clearly a market for a good book about using Scala for statistical computing, machine learning and data science. So when the publisher … Continue reading Scala for Machine Learning [book review]

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What popular baby names teach us about data analytics

April 6, 2015
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In my latest piece for Harvard Business Review (link), I tackle this common problem in the interactions between data scientists and business managers: A typical big data analysis goes like this: First, a data scientist finds some obscure data accumulating in a server. Next, he or she spends days or weeks slicing and dicing the numbers, eventually stumbling upon some unusual insights. Then, a meeting is organized to present the…

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Sense and nonsense about Big Data and surveys

March 23, 2015
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The American Association for Public Opinion Research (AAPOR) has put out its Big Data report last month (link). This one is worth reading. It has some of the most current citations, and readers of this blog will be very receptive to its core messages. The team who wrote the report is a mix of academics and practitioners. *** In Big Data, there are many self-evident truths, according to the people…

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Open Data – Stack Exchange

March 13, 2015
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Open Data – Stack Exchange

As a fan of Stack Exchange I am very excited about the new exchange being made available. This exchange is called 'Open Data' and allows users to post questions on where to find publicly available data on a topic and other users will respond with one o...

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Observing Rosling’s Current Visual Style

March 12, 2015
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Observing Rosling’s Current Visual Style

On the sister blog, I wrote about Hans Rosling’s recent presentation in New York (link). I noted that Rosling has apparently simplified his visual palette. Rosling is best known as the developer of the Gapminder tool, used to visualize global...

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Tricky boy William

March 11, 2015
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Tricky boy William

Last week, I was quite bothered by this chart I produced using the Baby Name Voyager tool. According to this chart, William has drastically declined in popularity over time. The name was 7 times more popular back in the 1880s...

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Some data science principles from Gelman, Rosling and me

March 6, 2015
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Some data science principles from Gelman, Rosling and me

I discovered Hans Rosling's Gapminder work when I first started Junk Charts almost ten year ago, with this series of posts. So I was very excited to meet Hans yesterday at the Data, Children and Post-2015 Agenda Event hosted by the UNICEF Data and Analytics Section. And he gave a marvellous talk. I came away touched in equal parts by his humanity, the animated passion for his subject, and the…

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New interview

March 5, 2015
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New interview

I answered some questions from KDnuggets. Here is Part 1 of the interview. They picked this image.

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Cluster analysis in the classroom

March 4, 2015
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Cluster analysis in the classroom

I am a guest at the New School's Journalism + Design program this semester. The students conducted interviews about the question of what makes someone famous. Their interviewees were asked to name five famous people. We had images of these people up on the wall. Then, we put the pictures into clusters. We tried two different ways of doing it. At the end, we compared our result to what a…

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Reflecting on Alamar’s reflection on sports data

March 2, 2015
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Ben Alamar reflects on the rise of data analytics in the NBA (link). I like this passage very much, which really nails home the point that good analytics requires intuition: The hours of waiting [during draft meetings] were often filled with watching film of prospects. It helped me refine my analysis, as I soaked up details from scouts that I never would have seen on my own. ("Rewind that. ...…

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