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Instructions for guest bloggers

You are welcome to post guest blogs in our communities:

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Added by Vincent Granville on September 18, 2013 at 7:30am — 1 Comment

Our best data visualization articles

Posted over the last 12 months or so. Includes not just charts and diagrams, but also video production, with source code.

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Added by Vincent Granville on September 17, 2013 at 4:30pm — 1 Comment

High Performance Computing + Data Science = Competitive Advantage

High Performance Computing (HPC) plus data science allows public and private organizations get…

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Added by Michael Walker on September 17, 2013 at 12:28pm — 1 Comment

“The Purple People” - The conundrum of finding business expertise among Data Scientists.





Over the last several months, as I looked at addressing the business needs across various industries as someone leading a team of  Data Scientists, the question of domain expertise invariably cropped up.



Attending one meeting with a Pharmaceutical company, I was posed with the question of, "Have you done work in the areas of Rare Signal detection?" In a similar vein, while preparing for a meeting with an Auto finance major, the question was in the area of using Auto…

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Added by Somjit Amrit on September 17, 2013 at 3:39am — 1 Comment

Do not stifle the questions visualized data raises!

Do not stifle the questions visualized data raises!

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Added by Somjit Amrit on September 17, 2013 at 3:37am — No Comments

Bootstraps, Permutation Tests, and Sampling Orders of Magnitude Faster Using SAS

Bootstraps, Permutation Tests, and Sampling Orders of Magnitude Faster Using SAS, Computational Statistics-WIREs, Vol. 5, Issue 5, 391-405.  Download @ http://www.datamineit.com/DMI_publications.htm

While permutation tests and bootstraps have very wide-ranging application, both share a common potential drawback: as data-intensive resampling methods, both can be runtime prohibitive when applied to large or even…

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Added by J.D. Opdyke on September 16, 2013 at 5:25am — No Comments

Google F1 Database: One Step Closer To Discovering The DB Holy Grail

What is Google F1 Database?

Click on the image for full view

Google recently replaced its AdWords MySql Database with a Database that they built in-house namely F1 Database. AdWords serves thousand of users, " which all share a database over 100TB serving up hundreds of thousands of requests per second, and runs SQL queries that scan…

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Added by Fari Payandeh on September 15, 2013 at 5:30pm — 1 Comment

Female Instincts vs. Quantum Entanglement

The  pivot role of a wild savant woman in the midst of revolutions and enlightenment: Emilie du Châtelet from my summer book Passionate Minds of David Bodanis, Three Rivers Press N.Y, 2006. I am impressed by Emilie ‘ insights permeated into the scientific mainstream with her unconventional but logic thoughts, so original that her male scientists recycled her ideas even forgot who had originated them. Emilie du Châtelet contributed the square to Einstein concept of energy…

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Added by Chris on September 13, 2013 at 11:38am — 4 Comments

Weekly Digest - September 16

Featured Articles

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Added by Vincent Granville on September 12, 2013 at 3:00pm — No Comments

Building better search tools: problems and solutions

Have you ever done a Google search for mining data? It returns the same results as for data mining. Yet these are two very different keywords: mining data usually means data about mining. And if you search for data about mining you still get the same results anyway.…

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Added by Vincent Granville on September 11, 2013 at 9:30pm — 10 Comments

Do you want to solve real world predictive analytics case study and get ranked amongst your peers?

Statistics.com, a provider of online education in statistics and analytics, announces a partnership with CrowdANALYTIX, a predictive modeling “managed crowdsourcing” company, offering a new online course, “Applied Predictive Analytics in partnership with CrowdANALYTIX“, which will run from Oct. 11 to Nov 8, 2013.

The goal of this course is to teach users (who have basic knowledge of R programming, predictive analytics and statistics)…

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Added by Janet Dobbins on September 11, 2013 at 6:58am — No Comments

“The Purple People” - The conundrum of finding business expertise among Data Scientists.

“The Purple People” - The conundrum of finding business expertise among Data Scientists.



Over the last several months, as I looked at addressing the business needs across various industries as someone leading a team of  Data Scientists, the question of domain expertise invariably cropped up.



Attending one meeting with a Pharmaceutical company, I was posed with the question of, "Have you done work in the areas of Rare Signal detection?" In a similar vein, while…

Continue

Added by Somjit Amrit on September 10, 2013 at 10:47pm — No Comments

The Merging of Social Media, Big Data, Perpetually Connected Consumers and AI... Nirvana, or the End of Free-Will?

The Not So Distant Future

It’s Friday September 14, 2046, and you are at the airport getting an alert from your car that your 10,000 mile service is due, but something peculiar comes with your alert. It’s a question: your car asks you if you wish to have the service taken care of within the next 10 days, or after.

You respond “in the next 10 days.”

Your car’s smart system contacts the car dealer’s smart system and arranges everything, but first…

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Added by Tullio Siragusa on September 10, 2013 at 5:00am — 1 Comment

Selected articles from top news outlets

29 articles recently published:

  1. 6 Ways to Address Collinearity in Regression Models…
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Added by Vincent Granville on September 9, 2013 at 8:03pm — No Comments

Check out the evolving US natural gas consumption stack

check out the main consumers of Natural gas during summer and winter. check out how the pattern changes . i have used data from EIA, improved upon it by comparing it with other sources and presented in a very easy to see form

really interesting. with more of NG supply coming up

US Natural Gas consumption stack

Added by Parag Patil on September 9, 2013 at 5:07am — No Comments

Hadoop vs. NoSql vs. Sql vs. NewSql By Example

z-05

z-03

Click on the images for full view

Although Mainframe Hierarchical Databases are very much alive today, The Relational Databases (RDBMS) (SQL) have dominated the Database market, and they have done a lot of good. The reason the money…

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Added by Fari Payandeh on September 8, 2013 at 7:09pm — 13 Comments

Can you win a Facebook data science job? Take the test!

Facebook has launched a Kaggle competition to hire a data scientist:

“This competition tests your text skills on a large dataset from the Stack Exchange sites. The task is to predict the tags (a.k.a. keywords, topics,…

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Added by Vincent Granville on September 5, 2013 at 7:00pm — No Comments

What will America pay for H1-B Jobs?

NOTE: H1b is a Visa program where people from outside countries are allowed to work with USA companies. The visa is valid for a 3 year period and is extensible for another 3 years. 

United States Department of Labor publishes quarterly data of H1-B and other visa applications. Below is an analysis and visualization of the same data.

What is in the Data…

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Added by Nilesh Jethwa on September 5, 2013 at 12:20pm — 1 Comment

Tableau and Data wrangler have a child

Hi - we'd love to get your feedback on a new product oinoi we're building.



We do analytics work for mobile carriers in Africa. Our work consists in building advanced dashboards. We do it with Tableau and we love the tool. However, building nice visualizations requires a long & tedious work of getting the data into shape (merge data sources, clean, aggregate, clean, format, etc). We haven't found yet a tool to make…

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Added by Antoine Bruyns on September 5, 2013 at 9:34am — 3 Comments

Using Big Data to Sell to Individuals Instead of Stereotypes

One of the weaknesses of marketing has always been overgeneralization. Marketers have forever relied on grouping people into categories based on common characteristics, like age, gender, or household income, and then treating all of those people as the same — also known as stereotyping.

The problem is that no two people are actually the same, let alone a whole group of them.  However usually they’re similar enough that you can get away with grouping them…

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Added by Josh Brown on September 5, 2013 at 7:57am — No Comments

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