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On May 17, 2006, at 7:14 PM, Phil Murphy wrote:
>   Can anyone recommend an accessible (and affordable) program that  
> can handle two-mode blockmodeling?
>   As an important aspect of my dissertation, I would like to  
> blockmodel groups based on shared terminology.  I have a 108 by 93+  
> matrix of respondents and terms used (or will as soon as the data  
> coding is complete).
>   Any suggestions will be greatly appreciated.
>   Best regards,
>   Phil Murphy

Another blockmodel option is to use programs for formal concept  
lattice analysis (a.k.a. "Galois lattice" analysis), such as Galicia  
or Toscana (all open-source & cross-platform):


For more details on using such lattices to deal precisely with this  
kind of data -- agent groups based on shared terminology -- you could  
have a look at "Lattice-based dynamic and overlapping taxonomies: the  
case of epistemic communities", CR, P. Bourgine, Scientometrics, 69 
(2), to appear 2006.


Camille Roth

department of social and cognitive science, università di modena, italy
créa (centre de recherche en épistémologie appliquée), cnrs/école  
polytechnique, paris, france
gsm +33 (0)6 8034 0870, fax +1 (413) 460-7085

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