Blog Archives

A little H2O deeplearning experiment on the MNIST data set

November 25, 2015
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A little H2O deeplearning experiment on the MNIST data set

Introduction H2O is a fast and scalable opensource machine learning platform. Several algorithms are available, for example neural networks, random forests, linear models and gradient boosting. See the complete list here. Recently the H2O world conference was held, unfortunately I … Continue reading →

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Restaurants as atomic nuclei with the R visNetwork package

September 18, 2015
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Restaurants as atomic nuclei with the R visNetwork package

Recently the R package visNetwork was brought to my attention. It is an R interface to the ‘vis.js’ JavaScript charting library where you can create interactive network graphs. To try out the package I need some data, luckily I still have some … Continue reading →

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Deploying a car price model using R and AzureML

August 20, 2015
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Deploying a car price model using R and AzureML

Recently Microsoft released the AzureML R package, it allows R users to publish their R models (or any R function) as a web service on the Microsoft Azure Machine Learning platform. Of course, I wanted to test the new package, … Continue reading →

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Soap analytics: Text mining “Goede tijden slechte tijden” plot summaries….

August 8, 2015
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Soap analytics: Text mining “Goede tijden slechte tijden” plot summaries….

Sorry for the local nature of this blog post. I was watching Dutch television and zapping between channels the other day and I stumbled upon “Goede Tijden Slechte Tijden” (GTST). This is a Dutch soap series broadcast by RTL Nederland. … Continue reading →

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Combining Hadoop, Spark, R, SparkR and Shiny…. and it works :-)

July 9, 2015
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Combining Hadoop, Spark, R, SparkR and Shiny…. and it works :-)

A long time ago in 1991 I had my first programming course (Modula 2) at the Vrije University in Amsterdam. I spend months behind a terminal with a green monochrome display doing the programming exercises using VI. Do you remeber Shift … Continue reading →

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Restaurant analytics: Text mining, Path analysis, Sankey, Sunbursts and Chord plots

June 16, 2015
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Restaurant analytics: Text mining, Path analysis, Sankey, Sunbursts and Chord plots

Last month I visited my favorite Chinese restaurant with some friends in the center of Amsterdam, Golden chopsticks, and had some nice food. I was wondering if other people shared the same opinion. So I visited iens.nl, a Dutch restaurant … Continue reading →

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Some simple facial analytics on actors (and my manager)

May 28, 2015
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Some simple facial analytics on actors (and my manager)

Some time ago I was at a party, inevitably, a question that came up was: “Longhow what kind of work are you doing?” I answered: I am a data scientist I have the most sexy job, do you want me … Continue reading →

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