3366 search results for "MAP"

Kalman filter example visualised with R

January 6, 2015
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Kalman filter example visualised with R

At the last Cologne R user meeting Holger Zien gave a great introduction to dynamic linear models (dlm). One special case of a dlm is the Kalman filter, which I will discuss in this post in more detail. I kind of used it earlier when I measured the temperature in my room. Over the last...

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Automated parsing of ebola situation reports

January 5, 2015
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Automated parsing of ebola situation reports

I’m pleased to announce public availability of ebola.sitrep, a package I wrote to download and parse ebola situation reports. The …Continue reading →

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Automatic Detection of the Language of a Tweet

January 5, 2015
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Two days ago, in my post to extract automatically my own tweets, and to generate some html list, I mentioned that it would be great if there were a function that could be used to distinguish tweets in English, and tweets in French (usually, I tweet in one of those two languages). And one more time, @3wen came to...

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An automatic code to extract tweets (and to produce the “Somewhere else” review)

January 3, 2015
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A few weeks ago, I ask in a post the (simple) question "dear reader, who are you?" just to know more about the readers of my blog. I found that extremely interesting (even if - to be honest - I was expecting more answers to start a more serious sociological study of the readers of my blog). And an...

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The Top 7 Beautiful Data Blog Posts in 2014

January 3, 2015
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2014 was a great year in data science – and also an exciting year for me personally from a very inspirational Strata Conference in Santa Clara to a wonderful experience of speaking at PyData Berlin to founding the data visualization company DataLion. But it also was a great year blogging about data science. Here’s the

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The average Stripe employee! Congrats to Alyssa!

January 2, 2015
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The average Stripe employee! Congrats to Alyssa!

Recently, my colleague and fellow blogger Alyssa Frazee accepted a job at Stripe. All of us at JHU Biostat are happy for her, yet sad to see her go. While perusing Stripe’s website, I found the About page, where each employee has a photo of themselves. I’ve been playing around with some PCA and decompositions,

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An experience of EARL

January 2, 2015
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An experience of EARL

Coordinates: 2014 September 15-17 in the London borough of #rstats. 15th, evening I had just the right number of R bugs so that I could walk to the drinks and arrive fashionably late.  On the way, I realized that I hadn’t been near the Tower of London since the first year I moved to London even The post

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Querying the Bitcoin blockchain with R

January 2, 2015
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Querying the Bitcoin blockchain with R

The crypto-currency Bitcoin and the way it generates “trustless trust” is one of the hottest topics when it comes to technological innovations right now. The way Bitcoin transactions always backtrace the whole transaction list since the first discovered block (the Genesis block) does not only work for finance. The first startups such as Blockstream

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Locality Sensitive Hashing In R Part 1

January 1, 2015
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Introduction In the next series of posts I will try to explain base concepts Locality Sensitive Hashing technique. Note, that I will try to follow general functional programming style. So I will use R’s Higher-Order Functions instead of traditional R’s *apply functions family (I suppose this post will be more readable for non R users). Also I will use brilliant...

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Locality Sensitive Hashing in R

January 1, 2015
By

Introduction In the next series of posts I will try to explain base concepts Locality Sensitive Hashing technique. Note, that I will try to follow general functional programming style. So I will use R’s Higher-Order Functions instead of traditional R’s *apply functions family (I suppose this post will be more readable for non R users). Also I will use brilliant...

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