Retraction Watch

Tracking retractions as a window into the scientific process

Weekend reads: Death penalty for scientific fraud?; Why criticism is good; Cash for publishing

with 5 comments

The week at Retraction Watch featured revelations about a case of misconduct at the University of Colorado Denver, and the case of a do-over that led to a retraction. Here’s what was happening elsewhere:

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Written by Ivan Oransky

June 24th, 2017 at 9:30 am

Posted in Uncategorized

  • Marco June 24, 2017 at 11:18 am

    Elsevier getting 15 million in damages is so important, it gets mentioned twice?
    (fourth point, and third-to-last point)

    • Ivan Oransky June 24, 2017 at 11:22 am

      We’ve retracted that duplicate publication — thanks!

  • J Andrews June 25, 2017 at 9:23 am

    With regard to the LIGO announcement of gravitational waves and the re-analysis by Danish researchers suggesting that the signal is really noise, does anyone know of an independent verification of the putative waves using the same raw data and the stated methodology?

    • Brian June 26, 2017 at 9:35 am

      In terms of the LIGO detection, one doesn’t even need statistical analysis – the result is visible by eye (the first detection was at least 50 sigma, but in fact so strong they couldn’t really decide on how to estimate it, because there was no noise at that level to actually estimate it – they had to extrapolate the noise from far away in parameter space).

      But if you read the analysis of the Danish team, it’s obvious it’s garbage. For instance, they complain that once you subtract the best fit theoretical template, the remaining signal is correlated. Well, frankly, duh. The templates aren’t perfect matches – they’re theoretical templates constructed for possible signals, but they have finite resolution, so the actual signal is a little off the template. So, after subtracting the template, there’s a bit of signal left, which correlates with the bit of signal left in the other detector. Ditto when the noise is the sea of low power gravitational waves we can’t isolate from one another – that should have the same lag time and be correlated.

  • Tim Damning June 27, 2017 at 1:07 am

    Just saw the LIGO noise, much higher than signal, I mean, is that really?

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