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Mirko Krivanek's Blog (37)

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Data science jobs not requiring human interactions

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Added by Mirko Krivanek on January 6, 2017 at 1:30am — 2 Comments

Strategy for building a “good” predictive model

By Ian Morton. Ian worked in credit risk for big banks for a number of years. He learnt about how to (and how not to) build “good” statistical models in the form of scorecards using the SAS Language.

Read original post and similar articles…

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Added by Mirko Krivanek on May 15, 2013 at 10:00pm — 2 Comments

Stat models to solve astronomical mysteries - application to business data

If you look at the picture below (Pleiades constellation), you will see - with the naked eye - that many star systems appear to be binary: that is, involving two (or more) stars orbiting around each other.

Is this a coincidence, or can we prove that from a statistical point of view, based on the theory of stochastic point…

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Added by Mirko Krivanek on April 4, 2013 at 9:30pm — 1 Comment

Invented by a data scientist: the first anti-scam

By anti-scam, I mean a scam where the victim makes more money by participating in the scam.

This scam works as follows:

  • You send money to the data scientist - AKA the scammer - and he purchases lottery tickets with…
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Added by Mirko Krivanek on March 28, 2013 at 9:30pm — 8 Comments

KDNuggets' report on data science graduate programs.

Read the original KDNuggets' report on data science graduate programs. The text below is an extract.…

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Added by Mirko Krivanek on February 18, 2013 at 7:00pm — No Comments

Shopper Alert: Price May Drop for You Alone | NewYorkTimes

When your grocery store bill is based on your profile...or another way for retail companies to optimize ROI via customized pricing (something all consultants, merchants and sales people have been doing for thousands of years, so it's not really new stuff)

 …

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Added by Mirko Krivanek on August 13, 2012 at 4:00pm — 9 Comments

Congress seeks information on data brokers' privacy and security practices | Data-Informed.com

Eight members of…

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Added by Mirko Krivanek on August 6, 2012 at 12:30pm — No Comments

Using an In-Memory Data Grid for Near Real-Time Data Analysis | HPCWire

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Added by Mirko Krivanek on August 6, 2012 at 12:30pm — No Comments

KDNuggets Poll results: Top languages for analytics/data mining programming

R is now used by over 50% of data miners. R, Python, and SQL were the most popular programming languages. Python, Lisp/Clojure, and Unix tools showest…

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Added by Mirko Krivanek on August 4, 2012 at 8:00pm — No Comments

Your credit card purchases mined by insurance companies | The Economist

To determine your premium. They check if you regularly purchase cheese burgers, cigarettes, alcohol etc.…

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Added by Mirko Krivanek on June 26, 2012 at 3:00pm — 1 Comment

Troves of Personal Data, Forbidden to Researchers | New York Times

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Added by Mirko Krivanek on May 24, 2012 at 11:08pm — 1 Comment

Data visualization: example of a great, interactive chart

This chart was published in the Forbes magazine by Jon Bruner, and the data comes from the IRS tax stats tables.

Chart:…

More people left Phoenix in 2009 than came. The map above visualizes moves to and from Phoenix; counties that took more migrants than they sent are linked with red lines. Counties that sent more migrants than they took are linked with blue lines.

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Added by Mirko Krivanek on May 8, 2012 at 9:30am — 5 Comments

Big Data's Big Problem: Little Talent | Wall Street Journal

Yet another article about the same issue (lack of talent) that has been dicussed at lengths over the last months, see http://online.wsj.com/article/SB10001424052702304723304577365700368073674.html

Here's my…

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Added by Mirko Krivanek on April 30, 2012 at 11:30am — No Comments

The Stanford Education Experiment Could Change Higher Learning Forever | Wired

Two university professors let the public take their artificial intelligence course online, for free. Then 160,000 students sihned up. Now the plan is to changer higher learning forever.…

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Added by Mirko Krivanek on April 30, 2012 at 10:26am — No Comments

More about retail analytics

I lived in California a while back, and have experienced a few instances where large companies headquartered e.g. in Minneapolis, were selling products in all their stores nationwide as if everybody in US had the same weather, seasons and body size.

In particular, some stores (maybe Target - I don't remember) that sell garden tables did not have any product available in late February, although late February in much of California is a great time to remodel your garden.

Also,…

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Added by Mirko Krivanek on December 26, 2011 at 9:00pm — No Comments

Scientists tried on manslaughter charges for providing incorrect predictions | USA Today

ROME (AP) – Seven scientists and other experts have gone on trial on manslaughter charges for allegedly failing to sufficiently warn residents before a devastating 2009 earthquake that killed more than 300 people in central Italy.

The case is being closely watched by seismologists around the globe who insist it's impossible to predict earthquakes and dangerous to suggest otherwise, since seismologists will be discouraged from issuing any advice at all if they fear…

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Added by Mirko Krivanek on September 21, 2011 at 4:39pm — 3 Comments

Big Data Analytics Company Opera Solutions Raises $84M | Washington Post

Opera Solutions, not to be confused with browser maker Opera Software, has raised a whopping $84 million in its very first round of outside equity funding. According to the Wall Street Journal, the round values the…

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Added by Mirko Krivanek on September 14, 2011 at 10:54am — No Comments

Pfizer's Top 5 Lessons from Applied Analytics | Forbes

Image representing Pfizer as depicted in Crunc...

(Image via CrunchBase)

Global pharmaceutical giant Pfizer Inc. is transforming its use of analytics from a theoretical exercise into a real-time execution engine powered in part by tablet PCs and click-stream data  but primarily by the urgency of shifting business models for Lipitor and other products.

In a …

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Added by Mirko Krivanek on September 14, 2011 at 10:49am — No Comments

Classical random number generators result in identity theft, according to IEEE

At least this is IEEE's viewpoint, if you read their recent article (front page) published in IEEE spectrum, September 2011. In a nutshell, they claim that hardware technology using Intel chips is better than software architecture to generate / simulate random numbers. See one of their prior articles at  …

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Added by Mirko Krivanek on September 9, 2011 at 9:30pm — 4 Comments

New strategies to get a job offer: what's your opinion about this very aggressive approach?

With government killing business by requiring mandatory health care, mandatory sick days, and many other perks for employees (maybe salary indexation in the future), what do you think of a candidate who would say, during a job interview:

  • I have never taken a sick day over the last 10 years. If I feel I could be contagious, I will call my manager and work from home - I was never sick to the point that I could not work efficiently. I will cost you $0 in sick days.
  • I will…
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Added by Mirko Krivanek on September 9, 2011 at 4:00pm — 7 Comments

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Latest Blog Posts

  • Data science jobs not requiring human interactions
  • Strategy for building a “good” predictive model
  • Stat models to solve astronomical mysteries - application to business data
  • Invented by a data scientist: the first anti-scam
  • KDNuggets' report on data science graduate programs.
  • Shopper Alert: Price May Drop for You Alone | NewYorkTimes
  • Congress seeks information on data brokers' privacy and security practices | Data-Informed.com

Most Popular Blog Posts

  • Data science jobs not requiring human interactions
  • KDNuggets Poll results: Top languages for analytics/data mining programming
  • Your credit card purchases mined by insurance companies | The Economist
  • Strategy for building a “good” predictive model
  • Examples of bad charts. Share your examples of terrible, meaningless, unreadable, cluttered charts with us!
  • Invented by a data scientist: the first anti-scam
  • KDNuggets' report on data science graduate programs.

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