Articles by Data * Science + R

Change Point Detection in Time Series with R and Tableau

January 1, 2015 | 0 Comments

Introduction Happy new year to all of you. Even if you still fight with the aftereffects of your new year’s party, the following is something that may help in getting you more active because that’s it what this blog post is about - Activity. Regardless of the business ...
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Dream Team – combining Tableau and R

November 3, 2013 | 0 Comments

Last quarter was a bit too busy to write some new blog post because of a new job. And changing the job often come along with changing the tools you work with. That was my way to Tableau. Tableau is one of the new stars in the BI/Analytics world ... [Read more...]

Time Is on My Side – A Small Example for Text Analytics on a Stream

June 23, 2013 | 0 Comments

Introduction and Background While my last posting was about recommendation in the context of Location Based Social Networks there are also other interesting topics regarding the analysis of unstructured data. The most established one is probably Text Analytics/Mining focusing on all sorts of text data.For me, coming from ... [Read more...]

Predictive Modeling using R and the OpenScoring-Engine – a PMML approach

December 13, 2012 | 0 Comments

On November, the 27th, a special post took my interest. Scott Mutchler presented a small framework for predictive analytics based on the PMML (Predictive Model Markup Language) and a Java-based REST-Interface. PMML is a XML based standard for the description and exchange of analytical models. The idea is that every ... [Read more...]

Benchmarking distance calculation in R

October 18, 2012 | 0 Comments

A typical step in a lot of data mining methods is the calculation of a distance between entities. For example using the nearest-neighbor method it is crucial to do this calculation very efficiently because it is the most time-consuming step of the procedure. Just imagine you want to compute the ... [Read more...]

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