2903 search results for "Twitter"

In case you missed it: June 2012 Roundup

July 11, 2012
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In case you missed them, here are some articles from June of particular interest to R users. The FDA goes on the record that it's OK to use R for drug trials. A review of talks at the useR! 2012 conference. Using the negative binomial distribution to convert monthly fecundity into the chances of having a baby in a...

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simulation, an ubiquitous tool

July 10, 2012
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simulation, an ubiquitous tool

(This article was first published on Xi'an's Og » R, and kindly contributed to R-bloggers) After struggling for quite a walk on that AMSI public lecture talk, and dreading its loss with the problematic Macbook, I managed to complete a first draft last night in Adelaide, downloading a final set of images from the Web...

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2nd CFP: the 10th Australasian Data Mining Conference (AusDM 2012)

July 10, 2012
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2nd CFP: the 10th Australasian Data Mining Conference (AusDM 2012)

The Tenth Australasian Data Mining Conference (AusDM 2012) Sydney, Australia, 5-7 December 2012 http://ausdm12.togaware.com/ The Australasian Data Mining Conference has established itself as the premier Australasian meeting for both practitioners and researchers in data mining. This year’s conference, AusDM’12, co-hosted … Continue reading →

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Data Mining In Excel: Lecture Notes and Cases

July 10, 2012
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Data Mining In Excel: Lecture Notes and Cases

by Yanchang Zhao, RDataMining.com It is a 270-page book on data mining with Excel. It can be downloaded as a PDF file at http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.83.1393&rep=rep1&type=pdf. Below is its table of contents. - Overview of the Data Mining Process - Data Exploration … Continue reading →

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Fumblings with Ranked Likert Scale Data in R

July 9, 2012
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Fumblings with Ranked Likert Scale Data in R

The code is horrible and the visualisations quite possibly misleading, but I’m dead tired and there are a couple of tricks in the following R code that I want to remember, so here’s a contrived bit of fumbling with some data of the form: enjoyCompany tooMuchFamily 1 strongly agree strongly disagree 2 strongly agree strongly

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Three hours of pure soccer emotion, visualized with R

July 6, 2012
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Three hours of pure soccer emotion, visualized with R

The biggest prize in UK soccer, the Premier League Championship, is decided by a points system. Unlike most sports competitions, there's no final round or playoff series: once the regular round of games is complete, the team that has accumulated the most points (three for a win, and one for a draw) is the champion of English football. In...

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Fix Overplotting with Colored Contour Lines

July 6, 2012
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Fix Overplotting with Colored Contour Lines

I saw this plot in the supplement of a recent paper comparing microarray results to RNA-seq results. Nothing earth-shattering in the paper - you've probably seen a similar comparison many times before - but I liked how they solved the overplotting...

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Interest Differencing: Folk Commonly Followed by Tweeting MPs of Different Parties

July 6, 2012
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Interest Differencing: Folk Commonly Followed by Tweeting MPs of Different Parties

Earlier this year I doodled a recipe for comparing the folk commonly followed by users of a couple of BBC programme hashtags (Social Media Interest Maps of Newsnight and BBCQT Twitterers). Prompted in part by a tweet from Michael [email protected] about generating an ESP map for UK politicians (something I’ve also doodled before – Sketching

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A new open journal on Data Science

July 4, 2012
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Springer has introduced a new open, peer-reviewed journal focused on Data Science: EPJ Data Science. What makes this a Data Science journal is novel uses of statistics, data analysis, computer techniques and public data sources to research a topic in another domain, rather than methodological research. Here are a few examples of the papers you'll find in the journal:...

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A tutorial on outlier detection techniques

July 4, 2012
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A tutorial on outlier detection techniques

by Yanchang Zhao, RDataMining.com There is an excellent tutorial on outlier detection techniques, presented by Hans-Peter Kriegel et al. at ACM SIGKDD 2010. It presents many popular outlier detection algorithms, most of which were published between mid 1990s and 2010, … Continue reading →

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