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Wide, Bulky Data and Dimensionality Reduction

As the saying goes, “mo’ data, mo’ problems.” Well, that’s not quite the saying and that’s not quite what we mean, but it certainly is true that large data comes with some problems that need to be solved. There are two ways that data can be “big.” Traditionally, Big Data is considered large literally by its physical size in terms of the memory space it consumes. In this article, we’re…
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How to Audit and Explore Datasets in PolyAnalyst

Suppose you just obtained a fresh new set of data. You might know what it’s generally about, but the only way you can know what hypotheses to test (and what analysis challenges you’re up against) is to explore the data and audit its overall quality. Unless you can see the basic overview of what you’re dealing with, you won’t be able to determine the most appropriate models to build or…
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Working with the Twitter API

The constant stream of breaking news, real-time updates, and individual opinions about events, products, or people is a rich source of information that can turn into valuable insights and business intelligence —if extracted in the right way. Twitter offers an API platform that allows the search and collection of tweets from the public timeline using keywords or the feed of specific accounts. Currently, there are three different tiers of search…
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What’s in a Text Analysis tool?

If you ask five different people, “What does a Text Analysis tool do?”, it is very likely you will get five different responses. The term Text Analysis is used to cover a broad range of tasks that include identifying important information in text: from a low, structural level to more complicated, high-level concepts. Included in this very broad category are also tools that convert audio to text and perform Optical Character…
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