Posts Tagged ‘ data mining ’

RDataMining group having 6000 members today

July 5, 2014
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RDataMining group having 6000 members today

RDataMining Group: http://group.rdatamining.com Twitter: @RDataMining Website: http://www.RDataMining.com The RDataMining group has 6000 members today, 5 July 2014. Created in August 2011, this group has developed into a big community with 6000 member within three years. Since its creation, many members … Continue reading →

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Currency Exchange Rate Forecasting with ARIMA and STL

July 3, 2014
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Currency Exchange Rate Forecasting with ARIMA and STL

I have made an example of time series forecasting with R, demonstrating currency exchange rate forecasting with the ARIMA and STL models. The example is easy to understand and follow. R source files are provided to run the example. The … Continue reading →

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Machine Learning and Applied Statistics Lesson of the Day – How to Construct Receiver Operating Characteristic Curves

Machine Learning and Applied Statistics Lesson of the Day – How to Construct Receiver Operating Characteristic Curves

A receiver operating characteristic (ROC) curve is a 2-dimensional plot of the (the true positive rate) versus (1 minus the true negative rate) of a binary classifier while varying its discrimination threshold.  In statistics and machine learning, a basic and popular tool for binary classification is logistic regression, and an ROC curve is a useful way to assess the predictive accuracy […]

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A Sequence of 9 Courses on Data Science Starts on Coursera on 2 June and 7 July 2014

May 26, 2014
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A Sequence of 9 Courses on Data Science Starts on Coursera on 2 June and 7 July 2014

A sequence of 9 courses on Data Science will start on Coursera on 2 June and 7 July 2014, to be lectured by(Associate/Assistant) Professors of Johns Hopkins University. The courses are designed for students to learn to become Data Scientists … Continue reading →

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A Coursera course on Machine Learning starts on 16 June

May 21, 2014
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A Coursera course on Machine Learning starts on 16 June

A 10-week course on Machine Learning by Andrew Ng from Stanford University will start on Coursera on 16 June. Below are descriptions of the course picked up from Coursera. The course provides a broad introduction to machine learning, data mining, … Continue reading →

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CFP: AusDM 2014 – the 12th Australasian Data Mining Conference

May 13, 2014
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CFP: AusDM 2014 – the 12th Australasian Data Mining Conference

********************************************************* 12th Australasian Data Mining Conference (AusDM 2014) Brisbane, Australia 27-28 November 2014 http://ausdm14.ausdm.org/ ********************************************************* Data Mining is the art and science of intelligent analysis of (usually big) data sets for meaningful insights. Data mining is actively applied across all … Continue reading →

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Shout out to "R Handles Big Data"

April 25, 2014
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Shout out to "R Handles Big Data"

Searching for SignificanceI just wanted to give a shout out to check out this post by Bob Muenchen on his excellent blog r4stats.com for his exceptional post a little over a year ago entitle "R Handles Big Data".

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Doing the Right Thing: Are your measures correct?

March 30, 2014
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"A lot of good analysis is wasted doing the wrong thing."Anyone who has worked with data on business problems is probably aware of this adage.  And this past week, I was reminded once again of this fact while analyzing a marketing program.  T...

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R: Text Mining on Twitter #PrayForMH370 Malaysia Airlines

March 21, 2014
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R: Text Mining on Twitter #PrayForMH370 Malaysia Airlines

It's been two weeks for search and rescue operations of the Malaysia Airlines Flight MH370, after it vanished from the radar on March 8, 2014. And wherever they are, we hope and pray for them.Photo from VENUS - Wall of Hope & Prayers for MH370In th...

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Heuristics in Analytics

March 12, 2014
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Last week, a book -- a real, hard-cover paper-paged book -- arrived in the mail with the title:  Heuristics in Analytics:  A Practical Perspective of What Influences Our Analytic World.  The book wasn't a total surprise, because I had re...

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