Who is the best soccer player?

In this article we use data science to answer the question: Who is the best soccer player? We use the TrueSkill ranking algorithm developed by Microsoft Research and used in the Xbox matchmaking system. We use data from the UEFA Champions League competition.

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World Battleground, 1000 years of war in 5 minutes

This animation shows all important battles that took place over the last ten centuries. The sizes of the explosions and labels are proportional to the number of casualties. The music is "Ride Of The Valkyries" by Richard Wagner. The data comes from the wikipedia article, List of Battles. It has over 3.5 Million views as of Jul 4 2015.

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Xavier Sala-i-Martin income distribution visualization

In this visualization we show the income distribution for each country of the world over time. It is easy to observe how the distribution shifts to the right as time goes on, which means that there is less poor people on the planet.

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The Music Planetarium

This visualization shows the top 1000 music artists by popularity and their relationships. The arrows represent the similarity between two artists. The data comes from the website last.fm. Click on the image to see a larger version where you can zoom in (its a big file: 11M)

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The Wikipedia Planetarium

This visualization shows a sample of the wikipedia articles and their relations. The sample is extracted from this list: List_of_articles_every_Wikipedia_should_have. We create a link from article A to article B if there are at least 3 references to article B in article A. We also delete from the graph articles having more than 15 links (91 articles) as they just clutter the final result. All articles that remain isolated are also removed. The number of articles shown in the visualization is 729. Click on the image to see a larger version where you can zoom in (its a big file: 8M)

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I'm a data scientist and my main subjects of interest are Artificial Intelligence, Machine learning and Complex Networks. I also invest some of my spare time working on personal projects that will be published on this website.

Bachelor thesis: Small worlds of economic networks

Master thesis: New clustering proposals for Twitter based on the Louvain algorithm