Machine Learning Times
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data mining

3 Ways to Test the Accuracy of Your Predictive Models

 Editor’s note: This article compares measures for model performance. Note that “accuracy” is a specific such measure, but that this article uses the word “accuracy” to generically refer to measures in general. In data mining, data scientists use algorithms to identify previously unrecognized patterns and trends hidden within vast amounts of structured and unstructured information.

“The hungry statistician” – or why we never can get enough data

 As the “Year of Statistics” comes to a close, I write this blog in support of the many statisticians who carefully fulfil their analysis tasks day by day, and to defend what may appear to be demanding behavior when...

It is a Mistake to…. Ask the Wrong Question

 (Part 4 (of 11) of the Top 10 Data Mining Mistakes, drawn from the Handbook of Statistical Analysis and Data Mining Applications) It is very important to have the right project goal; that is, to aim at...

A Good Business Objective Beats a Good Algorithm

 Predictive Modeling competitions, once the arena for a few data mining conferences, has now become big business. Kaggle (kaggle.com) is perhaps the most well-known forum for modeling competitions, using a crowd-sourcing mentality: if more people try to...

How data mining can boost your revenue by 300%

 For months, women’s fashion retailer Sway struggled to lure customers to its newly launched website by blasting them with sporadic emails. “It was pretty sad,” said Cheyanne Sequoyia-Mackay, Sway’s marketing manager. “Only about 20% of our customers...

Intro To Predictive Analytics Reading List

 Predictive Analytics Is Red Hot Why? What organization couldn’t benefit from making better decisions? Just ask the Obama campaign, which used sophisticated uplift modeling to target and influence swing voters. Or telecom firms that use predictive analytics...

R usage skyrocketing: Rexer poll

  Rexer Analytics has been conducting regular polls of data miners and analytics professionals on their software choices since 2007, and the results of the 2013 Rexer Analytics Data Miner Survey were presented at last month’s Predictive...

“Big data” for your small business: some basics to start thinking about

  Heard of big data but not sure what it is? Here is a basic introduction to the concept and how it might help your small business. [Data mining and “big data” are buzzwords in business IT...

Using Predictive Analytics to Make your Data Actionable (part 1)

 If we were able to predict the future, we would be able read the minds of our customers and know exactly what they wanted.  The closest we can get to this supernatural ability is utilizing predictive analytics...

Big Data, Mobility, Cloud Technologies Put Pressure on Federal IT

 To overcome these challenges, network managers expect to transform almost half of their agency’s infrastructure by 2015. Federal agencies plan to fully deploy data center consolidation, mobility, security, big data and cloud computing (the Big Five) efforts...

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