Re: [Fis] Chemical information: a field of fuzzy contours ?

2011-09-19 Thread Michel Petitjean
Dear Gavin, Information Theory is a specific subfield of Probability Theory applied to Information Sciences. It was used in the 70's in cheminformatics by F. McLafferty (mass spectrometry), A. Dijkstra (infrared spectra databases), etc. Would you reduce Information Science to Information Theory ?

Re: [Fis] Chemical information: a field of fuzzy contours ?

2011-09-19 Thread Loet Leydesdorff
Dear Michel, Ø Stating that information does not exist may be compared to stating that a cloud does not exist: it is hard to define it rigorously and its frontiers are highly fuzzy, but everybody is sure that it exists. The problem is here the “exist”. This easily lead to reification. For

Re: [Fis] Chemical information: a field of fuzzy contours ?

2011-09-19 Thread Michel Petitjean
Dear Loet, Thanks for your very good reply. Yes information cannot be found as res extensa, justs as mathematics: mathematics exist in our head, and can be communicated, can be taught, etc., but do not exist as concrete objects. However, starting from data (and databanks), we can extract knowledge

Re: [Fis] Chemical information: a field of fuzzy contours ?

2011-09-19 Thread Loet Leydesdorff
Dear Michel, The model allows us to entertain descriptions of future states in the present. Thus, it makes the discursive system "strongly anticipatory" in the sense of Daniel Dubois: a strongly anticipatory system uses its future state for its shaping itself in the present. The strong antipati

Re: [Fis] Chemical information: a field of fuzzy contours ?

2011-09-19 Thread Gordana Dodig-Crnkovic
Dear all, Let me comment on Loet's statement: Ø Information cannot to be found as res extensa. There exists a framework, Informational Structural Realism, (Floridi) http://www.springerlink.com/content/d7586712n7321314/ in which res extensa is nothing but information (for an agent). Within Inf