« A significant mystery | Main | Twitter's folly: signal to noise ratio »


Feed You can follow this conversation by subscribing to the comment feed for this post.


Though I suspect the lie detector comment was tongue in cheek, I have to wonder if even accurate lie detectors would improve the detection of doping. Since lie detectors only detect changes in emotional state, they might increase the noise more than the signal.


Good article—I especially like the point about the media's overfocus on false positives.

Also, Bjarne Riis is Danish, not Dutch.


Cyclocosm: thanks. I fixed the nationality.

Tom: yes, that was mostly tongue in cheek. It refers to the point made in the book that the media circus surrounding a positive test result typically involves athlete vs testing lab but in fact, the defence offered by athletes usually acknowledge that the PEDs are in the samples - they merely offer reasons why the PEDs are there (the gel, the spiked drinks, the beer, etc.) so the only way to resolve that is a lie detector (!)

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Your comment could not be posted. Error type:
Your comment has been posted. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.


Post a comment

Your Information

(Name is required. Email address will not be displayed with the comment.)

Marketing and advertising analytics expert. Author and Speaker. Currently at Columbia. See my full bio.

Spring 2015 Courses (New York)

Jan 26: Business Analytics & Data Visualization (14 weeks) Info

Feb 23: Statistics for Management (10 weeks) Info

Mar 28: Careers in Business Analytics & Data Science (one-day seminar) Register

Apr 7: The Art of Data Visualization Workshop (6 weeks) Register

Next Events

Sep: 28 Data Visualization New York Meetup, New York, NY

Oct: 5 Andrew Gelman’s Statistical Communications class, Columbia University

Oct: 13 AQR ProSeminar, NYU Sociology

Oct: 22 Leading Business Change Through Analytics, Columbia Business School

Oct: 30 Ray Vella’s Designing Infographics class, NYU

Past Events

See here

Junk Charts Blog

Link to junkcharts

Graphics design by Amanda Lee


  • only in Big Data