Adventures of a multidimensional freak

This is Juan Julián Merelo Guervós English-language blog. He teaches computer science at the University of Granada, in southern Spain. Come back here to read about politics, technology, with a new twist

Latest comments

  • muneeb en Spanish blogosphere in Wired
  • Brother Printer Customer Service Phone Number en Technobabble and Mr. Joe Public
  • josef en We live in a black and white world
  • CurtisStern en Obscure "Sin City" movie trivia
  • misbah en About conference poster design and defense
  • Walter D. Lorenz en Bruce Sterling in Spain
  • American Airlines Holiday Hours en Riddles in Kafka on the shore
  • American Airlines Holiday Hours en Riddles in Kafka on the shore
  • experts pi law en Social Networks Analysis is going mainstream
  • MoniqueLMerritt en What is informal distributed evolutionary computation?
  • Blogs Out There

    Nelson Minar's Blog
    Jeremy Zawodny's Blog
    Complexes, Carlos Gershenson's blog
    IlliGAL, Genetic Algorithms blog
    Blogging in the wind, Víctor R. Ruiz's blog

    Atalaya, my Spanish language blog
    Geneura@Wordpress, our research group's blog.
    My home page

    Old stories

    Creative Commons License
    This work is licensed under a Creative Commons License.

    Inicio > Historias > And 15!

    And 15!

    Just reached an h-index of 15. Momentarily, and not discounting self-cites.
    I guess it's downhill from here. It was 14 just 5 months ago (and after that, it went down to 13 momentarily). In any case, we'll not drop the guard. You neither. Keep citing. Thanks!
    Tags: , , ,

    2008-01-13 20:20 | 10 Comment(s) | Filed in Just_A_Scientist

    Referencias (TrackBacks)

    URL de trackback de esta historia


    De: fernand0 Fecha: 2008-01-14 09:58


    De: Anónima Fecha: 2008-01-14 10:10

    Yeepee! :)

    De: Vitorino Ramos Fecha: 2008-01-15 21:17

    Congratulations JJ. That's a great impact h-index (have you seen the h distribution curve on the original article by Hirsch). And your Egghe number is good as well. Plus a great responsability. This means that you should work from now on papers with great ideas leading to 16 or more (future) citations! It's not downhill. It's possible. We have done it in the past, we shell keep doing it in the future. I only be worried if I had a h-index = 90 !! That in fact is a big problem (what should a guy like this do next in order to keep his standard ?!).

    De: JJ Fecha: 2008-01-15 22:45

    Egghe? I didn't know that one.
    I know several with h=90. Goldberg, for instance.

    De: Vitorino Ramos Fecha: 2008-01-16 12:58

    The Egghe number is considered to be an improved alternative to the Hirsch number, at least to solve some problems the later has. The h-index ignores the number of citations to each individual article beyond what is needed to achieve a certain h-index. Hence an academic with an h-index of 5 could theoretically have a total of 25 citations (5 for each paper), but could also have more than a 1000 citations (4 papers with 250 citations each and one paper with 5 citations). In reality these extremes will be unlikely. However, once a paper belongs to the top h papers, its subsequent citations no longer "count". Such a paper can double or triple its citations without influencing the h-index (Egghe, 2006). Hence, in order to give more weight to highly-cited articles Leo Egghe (2006) proposed the g-index. The g-index is defined as follows:

    Given a set of articles ranked in decreasing order of the number of citations that they received, the g-index is the (unique) largest number such that the top g articles received (together) at least g2 citations.

    Although the g-index has not yet attracted much attention or empirical verification, it would seem to be a very useful complement to the h-index. Here are the references (h* was proposed in 2005 and g** in 2006) - both are online:

    * J. E. Hirsch, PNAS, Vol. 102, no. 46, 2005.
    ** L. Egghe, Scientometrics, Vol. 69, no. 1, 2006.

    Finally this free software automatically computes both indexes:

    De: Vitorino Ramos Fecha: 2008-01-16 13:01

    note - g2 above is g^2 or square of g.

    De: Vitorino Ramos Fecha: 2008-01-16 13:06

    JJ I believe that Goldberg is now on h=96 !! Only inventing again a brand new computational paradigm as he have done in the past with the GA's, could he surpass this incredible index. Not for humans . Only extraterrestrials !

    De: JJ Fecha: 2008-01-16 13:15

    Yep, I knew that g index. I'll try and compute it...

    De: Vitorino Ramos Fecha: 2008-01-16 21:13

    No need to. According to the software "Publish or Perish" (freely available: see link above) your g=28.

    De: JJ Fecha: 2008-01-16 21:27

    Hey, thanks... Yep, I know that one, but it's for windows, and I don't use Windows too much lately.

    Dirección IP: (6587b64bdd)
    ¿Cuánto es: diez mil + uno?

    © 2002 - 2008 jmerelo
    Powered by Blogalia