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Telling stories with network data: Instagram in China
One of the most interesting sources of social media data right now is the iPhone based image sharing platform Instagram. This social networking platform is based on images, which can be compared with...
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Color analysis of Flickr images
Since I’ve seen this beautiful color wheel visualizing the colors of Flickr images, I’ve been fascinated with large scale automated image analysis. At the German Market Research association’s...
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Mapping a Revolution
Twitter has become an important communications tool for political protests. While mass media are often censored during large-scale political protests, Social Media channels remain relatively open and...
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Trending Topics at Strata Conferences 2011-2014
To fill the gap until this year’s Strata Conference in Santa Clara, I thought of a way to find out trends in big data and data science. As this conference should easily be the leading edge gathering of...
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Big Data Investment Map 2014
Here’s an updated version of our Big Data Investment Map. I’ve collected information about ca. 50 of the most important Big Data startups via the Crunchbase API. The funding rounds were used to create...
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Big Data VC investments
As the data-base for the Big Data Investment Map 2014 also includes the dates for most of the funding rounds, it’s not hard to create a time-series plot from this data. This should answer the question...
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Datalicious Notebookmania – My favorite 7 IPython Notebooks
One of the most remarkable features of this year’s Strataconf was the almost universal use of IPython notebooks in presentations and tutorials. This framework not only allows the speakers to...
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How to create a location graph from the Foursquare API
Monday, I’ll be speaking on “Linked Data” at the 49th German Market Research Congress 2014. In my talk, there will be many examples of how to apply the basic approach and measurements of Social Network...
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The Top 7 Beautiful Data Blog Posts in 2014
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...
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Coolhunting like a Streetfighter
One of the most exciting applications of Social Media data is the automated identification, evaluation and prediction of trends. I already sketched some ideas in this blog post. Last year – and this...
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What to expect from Strata Conference 2015? An empirical outlook.
In one week, the 2015 edition of Strata Conference (or rather: Strata + Hadoop World) will open its doors to data scientists and big data practitioners from all over the world. What will be the most...
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