Machine Learning

Machine Learning Blogs

What does it take to win a major?

September 12, 2014
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What does it take to win a major?

Prior to his epic collapse in the semis, I went to the US Open to see the G.O.A.T put on a clinic against the world's #17. In between sets, they showed a graphic on the jumbotron of each player's stats: first serve %, nets points won, unforced errors, ...

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Meetup Presentations

July 16, 2014
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Meetup Presentations

Recently I gave a presentation on Machine Learning to members of the NYC Open Data Meetup group.Here is that presentation for anyone interested. Machine Learning - Ilan Man ...

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When less is more

April 23, 2014
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When less is more

Recently the Center for Medicaid and Medicare Services (CMS) released provider utilization and payment data. This is part of the government's ongoing push for transparency into medical services and costs. You may remember that last year they released h...

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Distributions in d3

March 30, 2014
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Distributions in d3

Something that often comes up is visualizing in 3 dimensions. I don't mean like 3dprinting. I mean more like heatmaps. With heatmaps, you can easily change two variables (the x and y dimensions) and see its impact on a third variable, usually denoted b...

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TV analysis

February 17, 2014
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TV attribution is one of the hardest problems to get right in all web analytics. To be clear, attribution is how marketers make sense out of their spend, so they know where to invest more or less in the future. Since attribution, for most companies, is...

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Reinforcement Learning in R: Markov Decision Process (MDP) and Value Iteration

January 7, 2014
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Reinforcement Learning in R: Markov Decision Process (MDP) and Value Iteration

How can we find the best long-term plan? In the last post, we looked at the idea of dynamic programming,...

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Spite.

December 24, 2013
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Congress. Wait, before you lose your lunch, bear with me. This dysfunctional legislative body has been making headlines in the news recently. And when Congress is mentioned, rarely, if ever, is it of the positive persuasion. The shutdown, for example...

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Doing Yeoman’s work.

December 23, 2013
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They work hard for their money. Or, maybe they just work for their money. Either way, members of Congress get paid. There are many ways to measure the amount of work congressional members do. One way is by looking at the number of Bill's they pass pe...

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Social media popularity, revisited.

November 29, 2013
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Social media popularity, revisited.

You might remember my post on Twitter mentions in New York Times articles from a few months back. I simply accessed the NYT API and plotted a graph showing the rise in mentions over the past few years. At the time, I used R's very popular plotting libr...

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Want to work with me? Count to 3.

October 24, 2013
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This stumps job applicants all the time (although probably not after this post). I flip a coin two times. Given that at least one of the flips is heads, what's the probability that both flips are heads. 50% you say? Sorry, but no. Don't feel bad...

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