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Leandro Guerra's Blog Posts Tagged 'science' (2)

Feature engineering? Start here!

One of the hot topics on Machine Learning is, with no doubts, feature engineering. In fact, it comes before the buzz on this topic, simple when we talk about Data Mining. Remembering the CRISP-DM process, feature engineering (and, consequently, feature selection) is the core of a great data mining project – it comes to life on the Data Preparation phase, that is the task to have constructive data preparation operations such as the production of derived attributes or entire new records, or…

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Added by Leandro Guerra on February 15, 2016 at 12:30am — No Comments

Discovering the relationship of the G20 members using Data Mining

It takes just a little talk with me to know that I'm a fan of the financial market and many subjects related to economics. Today I want to show an application involving news on the web, Python, MongoDB and the Gephi, a software for visualization and manipulation of social networks.

Our goal is to verify that the amount of joint occurrences of G20 countries (specifically Brazil) published in the news related to the financial market…

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Added by Leandro Guerra on February 16, 2015 at 10:29am — No Comments

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