Subscribe to Dr. Granville's Weekly Digest

Featured Blog Posts – November 2011 Archive (30)

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.…

Continue

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

How to Lie with Statistics | Investopedia.

By Brian Bloch | Investopedia – Fri, Nov 25. 

It is no secret that various people or bodies within the financial services industry will say or write whatever will sell the products, rather than what is actually true and correct. For this reason, buyers may be more inclined to rely on what they think is hard evidence – in the form of statistics and charts. Regrettably, one…

Continue

Added by Jean-Paul Rasson on November 27, 2011 at 11:30am — 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…

Continue

Added by Vincent Granville on November 26, 2011 at 3:30pm — 2 Comments

6 reasons why 2012 could be the year of Hadoop | Gigaom.com

By  

Hadoop gets plenty of attention from investors and the IT press, but it’s very possible we haven’t seen…

Continue

Added by Marcel Remon on November 26, 2011 at 10:30am — No Comments

If the government does not like your trading algorithms, it can sue you!

(Reuters) - Exchange operator CME Group Inc (NasdaqGS:CME) fined Infinium Capital Management, a U.S. high-frequency trading firm, a total of $850,000 for three separate computer malfunctions that rattled futures markets in 2009 and 2010.

Infinium trading programs malfunctioned on October 7 and again on October 28, 2009, causing uncontrolled selling of e-mini contracts on the Chicago Mercantile Exchange. Then on February 3, 2010, the firm…

Continue

Added by Marcel Remon on November 25, 2011 at 7:23pm — No Comments

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…

Continue

Added by 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. …

Continue

Added by Vincent Granville on November 23, 2011 at 8:30pm — 9 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: …

Continue

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

Fractal Agriculture Design to Optimize Crop Yield

And to feed billions more humans! There has been lots of research and development to improve farming over the last 6,000 years. This includes irrigation, crop rotation, fertilizers, insecticides, genetic engineering, building skycrapers where vegatables are grown on each floor, etc.…

Continue

Added by Amy on November 18, 2011 at 9:00pm — No Comments

Fooling Social Network Algorithms For Massive Financial or Political Gain

The recent attack on Facebook (with almost a billion users exposed to porn and violence spread by spammers), as well as the unreported / undetected attack on Yahoo Finance - with thousands of fake members posting comments against "Occupy Wall Street" (where 5 days ago thousands of possibly fake posters were posting comments in favor of this movement) raise questions about the business value of hiring data scientists, based on the…

Continue

Added by Amy on November 18, 2011 at 7:30pm — 1 Comment

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…

Continue

Added by Vincent Granville on November 17, 2011 at 9:00pm — 1 Comment

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…

Continue

Added by 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…

Continue

Added by 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…

Continue

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…
Continue

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…
Continue

Added by 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…

Continue

Added by 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…

Continue

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…

Continue

Added by 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…
Continue

Added by John A Morrison on November 9, 2011 at 12:12am — 1 Comment

Featured Monthly Archives

2014

2013

2012

2011

2010

2009

2008

© 2014   AnalyticBridge.com is a subsidiary and dedicated channel of Data Science Central LLC

Badges  |  Report an Issue  |  Terms of Service