Data science for data-driven startups

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The cost of reducing costs

Predicting the number of sales representatives on a particular time on a particular store is harder than expected. If you instrument the whole process, you […]

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Book review : Programming Collective Intelligence

Programming Collective Intelligence is a great book. It covers most of the existing data mining algorithms and presents many applications for them.  It covers clustering […]

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How to : What to do when your model fails?

Sometimes (well most of the time) using your favorite data mining methods and the more obvious attributes are not good enough. What to do then? […]

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Data mining tools

When it comes to data mining the tool you use is very important. It seems that peoples use many software (see How many software packages […]

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What is the value of your work?

It’s a damn good question which should be tightly correlated to your salary in an utopic world. In other words, how do you justify your […]

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Book review : Actionable Web Analytics

Actionable Web Analytics : Using Data to Make Smart Business Decisions is a marketing book like Competing on Analytics. A lot of sentences to say […]

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A Twitter users segmentation

Now it’s time to create some clusters from our twitter data. In this post, we focus only on biographical tags and we use the old […]

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When is a token a tag?

After some first statistics about the twitter dataset, I try to get further. In this post, i’ve discussed how to extract token from Twitter, more […]

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First statistics about twitter users

Recently I have discussed about how to get some data from Twitter. At this time, I have downloaded 6859 profiles. Here I will give some […]

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Book review : Competing on analytics

Competing on Analytics : A new Science of Winning is an interesting book even if it doesn’t explain anything about how to do real analytics. […]

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