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Featured Blog Posts – November 2011 Archive (24)

The Search For Analysts To Make Sense Of 'Big Data' | NPR

DJ Patil explains a visualization of a person's LinkedIn network, where different groups of contacts are illustrated by different colors. Patil developed big data projects for LinkedIn — like algorithms to determine whom you might know. He now recruits mathematicians for a venture capital firm.


DJ Patil explains a visualization of a person's LinkedIn network, where different groups of contacts are illustrated by different colors. Patil developed big data projects for LinkedIn — like algorithms to determine whom you might know. He now recruits mathematicians for a venture capital firm.…

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Added by Dr. Vincent Granville on November 30, 2011 at 1:30pm — No Comments

Has Analyticbridge been attacked by remote terrorists?

We've experienced a number of small Internet problems that were easily fixed, just before Thanksgiving. But there was one attack that looked very weird, and the motivation behind this failed plot is obscure. Most likely, our publication of new material to better and automatically detect scammers on social networks probably triggered the retaliation. We've experienced this type of retaliation in the past, when…

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Added by Dr. Vincent Granville on November 26, 2011 at 3:30pm — 1 Comment

Expected Salary by Major | SimplyStatistics

In this recent editorial about the Occupy Wall Street movement, Richard Kim profiles a protestor that despite having a master’s degree can’t find a job. This particular protestor quit his job as a school teacher three years ago and took out a $35K student loan to obtain a master’s degree in puppetry from the University of Connecticut. I…

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Added by Dr. Vincent Granville on November 24, 2011 at 12:30am — 1 Comment

Are Lottery Winning Numbers Really Random?

Most analytic people would agree that lottery is a tax on the innumerate. However, for this statement to be true, we need to assume that winning numbers (and any combination of digits from these numbers) are truly random. If not, of course smart people are going to find and devise algorithms to increase their odds of winning, and/or will try to sell their magic "winning numbers" to idiots. …

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Added by Dr. Vincent Granville on November 23, 2011 at 8:30pm — 7 Comments

Neural Nets Tips and Tricks: add recall Output neuron

...

As mentioned, in many cases the customization of algorithms is the only way to achieve the target, but sometimes, some tricks can help to improve the learning even without changes of learning strategy!
Consider for example our XOR problem solved through neural networks.
Let's see how we can reduce considerably the epochs required to train the net.

read more here: …

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Added by Cristian Mesiano on November 23, 2011 at 3:05pm — No Comments

Analytic Stress Test: Google Beats Microsoft

We tested how Google and Bing are vulnerable to sophisticated algorithmic attacks that could potentially erase all paid ads and organic search results on search engines. 



An algorithmic attack is defined by the following…

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Added by Dr. Vincent Granville on November 17, 2011 at 9:00pm — No Comments

Cloudera Founder Launches New Startup with Google Money | Silicon Angle

Cloudera founder Christophe Bisciglia unveiled his new startup Odiago this morning, giving to the business side scoop to TechCrunch and the technical details to Curt Monash. The company is launching a product called Wibidata (“we be data”) specializing in…

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Added by Dr. Vincent Granville on November 17, 2011 at 6:45pm — No Comments

86 Helpful Tools for the Data Professional PLUS 45 Bonus Tools | Syracuse University

Source: Joshua Kitlas.

I have been working on this (mostly) annotated collection of tools and articles that I believe would be of help to both the data dabbler and professional. If you are a data…

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Added by Dr. Vincent Granville on November 17, 2011 at 6:30pm — 1 Comment

2 papers: Latest Thinking: Rational Expectations, Anchoring Effects / New Micro foundations of RE

 

I have become interested in the new micro-economic foundations of Macro - Rational Expectations Economics (in the context of irrational macro-policy design, particularly visible in the EuroZone); here are two interesting papers from one seminar at Warwick, link below abstracts ..

 

FIRST PAPER

 

A MODEL OF REFERENCE-DEPENDENT PREFERENCES

 

*BOTOND KO˝SZEGI AND MATTHEW RABIN

 

ABSTRACT: We develop a model of…

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Added by John A Morrison on November 14, 2011 at 9:30am — No Comments

Buy or build, a practical example to explain my point of view

I was working on the post related to the relation between IFS fractals and Analytical Probability density, when an IT manager contacted me asking an informal opinion about a tool for Neural Networks.

I was working on the post related to the relation between IFS fractals and Analytical Probability density, when an IT manager contacted me asking an informal opinion about a tool for Neural Networks.
He told me: “we are evaluating two different tools to perform…
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Added by Cristian Mesiano on November 13, 2011 at 9:35pm — No Comments

Advertising Companies Fret Over a Digital Talent Gap | New York Times

There's apparently a shortage of analytic talent to fill these new "yield optimization scientist" and similar positions created by ad agencies. Since I get lots of resume each week from stellar, perfectly qualified candidates who want their resume posted on DataShaping, and few if any request from hiring managers looking to fill these positions, I think that

  1. Either this New York Times article is just hyping a non-existent shortage, or maybe, only one hiring manager is…
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Added by Dr. Vincent Granville on November 13, 2011 at 5:00pm — No Comments

What is a “Hadoop”? Explaining Big Data to the C-Suite

by Ravi Kalakota

Keep hearing about Big Data and Hadoop? Having a hard time understanding what is behind the curtain?

Hadoop is an emerging framework for Web 2.0 and enterprise businesses who are dealing with data deluge challenges – store, process and analyze large amounts of data as part of their business requirements.

The continuous challenge online is…

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Added by Dr. Vincent Granville on November 12, 2011 at 2:55pm — No Comments

Fraud Detection Using Interactive Construction And Analysis Of Decision Trees

A fantastic article from one of our company's very talented engineers:  http://blog.synerscope.com/2011/11/fraud-detection-using-interactive.html

 

FRAUD DETECTION USING INTERACTIVE CONSTRUCTION AND ANALYSIS OF DECISION TREES…

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Added by Andrew Marane on November 12, 2011 at 9:30am — No Comments

Big Money for Big Data | eCommerce Times

Innovations in the management of big data are getting encouragement to the tune of $100 million in potential investments from a new venture fund established by Accel. "Databases have gotten so big that we need to develop the next generation of technology that can capture, store, analyze and report on datasets that are measured in quadrillions of bytes," noted Richard McCarthy, head…

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Added by Dr. Vincent Granville on November 9, 2011 at 8:42pm — No Comments

Why White, Not Keynes? Inventing the Post-War International Monetary System

 

Why White, Not Keynes? Inventing the Post-War International Monetary System



Boughton, James M.
Summary: The international monetary system is largely the product of negotiations during World War II between…
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Added by John A Morrison on November 9, 2011 at 12:12am — 1 Comment

Jure Leskovec on "The Web as a Laboratory for Studying Humanity" at SFBay ACM DMSIG

WATCH THE VIDEO ON YOUTUBE:

 

http://www.youtube.com/watch?v=FrZyHlxfGMU

 

Event Details…

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Added by Vera Klimkovsky on November 8, 2011 at 8:47pm — No Comments

Why Visualization makes or breaks BI

There’s a lot of buzz around BI semantics and until recently quite a few analysts have been caught into the world of data definitions and Cubes. For obvious reasons: the current state of BI is hard to use and has required companies to scale up on report writers and other personnel with technical-to-business “translation” skills. This swath of infrastructure is responsible for getting still-pretty-raw data from enterprise systems into the hands (and more preferably the brains) of managers and…

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Added by Shyam Desigan on November 6, 2011 at 9:50pm — 1 Comment

More FAQ's about Data Mining

By Tim Graettinger, Ph.D., President of Discovery Corps, Inc. (http://www.discoverycorpsinc.com), a Pittsburgh-area company specializing in data mining, visualization, and predictive analytics.

For the past year, I have presented a data mining “nuts and bolts” session during a monthly webinar[1].  My favorite part is the question-and-answer portion at the end.  In a previous article[2], you learned my thoughts on:…

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Added by Dr. Vincent Granville on November 5, 2011 at 11:14am — No Comments

Visualizing Large Data Sets

Visualizing Large Data Sets

 



Challenges to Visual Analysis for Large Datasets

While data has been continually growing, the tools which to visualize and discover what is in that data have not significantly changed over the past ten years. Analysts are challenged with larger and larger amounts…
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Added by Andrew Marane on November 3, 2011 at 4:27pm — 1 Comment

A New Data Analytics Hierarchy | IT Business Edge

Posted by Michael Vizard Nov 1, 2011 2:36:24 PM…
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Added by Dr. Vincent Granville on November 3, 2011 at 2:20pm — No Comments

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