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General 04 Jul 2008 06:53 am

Biweekly links for 07/04/2008

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General 30 Jun 2008 11:40 am

Why the h-index is little use

I’m continually surprised how popular the h-index is becoming. This post is a reiteration of something I noted in an earlier post: it appears that for most scientists, the h-index can be computed to a good approximation from the formula:

h ~ sqrt(T) / 2,

where T is the total number of citations the scientist. Thus the h-index contains little information beyond the total number of citations, and is not properly regarded as a new measure of impact at all. The earlier post contains additional details, including some caveats, and comments on possible further improvements to this rule. It really needs a detailed study, but I don’t think the basic point is in doubt.

General 30 Jun 2008 06:53 am

Biweekly links for 06/30/2008

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    General 27 Jun 2008 06:53 am

    Biweekly links for 06/27/2008

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    General 23 Jun 2008 11:03 am

    Slaying Monsters for Science

    This week’s Science contains Slaying Monsters for Science, by John Bohannon. Mr Bohannon penned the following abstract:

    The first scientific conference held in Azeroth, the online universe of the role-playing game World of Warcraft, went off virtually without a hitch. Although the participants all died during the final day’s social event — a massive raid on an enemy fort — they agree that this event is a glimpse at the future of scientific exchange.

    Sounds like a natural evolution for some fields.

    The article is very interesting, and very funny. It concludes:

    Then again, not even a conference in Vegas ends the way ours did. With fireworks bursting and confetti still drifting all around the dancing mob of wedding guests, Catullus announced the final event: a massive attack on Sentinel Hill, an Alliance stronghold. As we surged over the hills around the unsuspecting fort, everyone yelled, “For Science!” Bainbridge had enlisted the help of Alea Iacta Est, the largest guild in Azeroth. At first it seemed we were unbeatable. The 70th-level characters among us cut down the Sentinel Hill guards where they stood. We boiled up the spiral staircase to the platform atop the tower. It was so crowded that I could hardly see the parapets. Several people tumbled off during our celebratory dance.

    But it wasn’t long before Alliance players learned about the Science guild raid on Sentinel Hill. Word spread that “the scientists are running amok!” Powerful Alliance characters arrived, and the tide of battle turned against us. Within half an hour, every last one of us lay dead on the grass. Victory is short-lived in the harsh world of science.

    General 23 Jun 2008 06:53 am

    Biweekly links for 06/23/2008

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    General 20 Jun 2008 06:53 am

    Biweekly links for 06/20/2008

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    General 16 Jun 2008 06:53 am

    Biweekly links for 06/16/2008

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    General 13 Jun 2008 06:53 am

    Biweekly links for 06/13/2008

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    General 10 Jun 2008 08:40 am

    The $10,000 question

    Could you run an ultramarathon, solve a major scientific problem, or write a bestseller?

    What if you had a deadline to do it by the end of June 2009?

    Sound too hard? What if you placed $10,000 of your own money with an escrow service (say, a beefed up version of stickk.com), with instructions that the money is to be donated to an anti-charity that you strongly dislike, unless you provide proof that you’ve succeeded?

    In my case, I’d be tempted to nominate something like the George W. Bush Memorial Library as my anti-charity. Maybe ask them to put my name up on a wall listing donors. (If I had more money, I could raise the amount to ten million dollars, and ask them to build the “Michael A. Nielsen” wing of the George W. Bush library if I failed. Mmm.)

    I haven’t done this, at least, not yet. But considering the idea at length has sure put the question “Am I doing everything I can to reach my goals” into sharp relief.

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