***** To join INSNA, visit http://www.insna.org ***** IntColl.exe <http://www.leydesdorff.net/software/intcoll/intcoll.exe> for International Collaboration Analysis This program enables one to generate a representation of the international coauthorship relations in a document set in terms of the countries of coauthors. Input is a set saved using ISI's Web of Science, and outputs are: 1. cosine.dat provides an input file for Pajek as a visual representation of the international collaboration network among the authors within this set. The matrix is normalized using the cosine. 2. coocc.dat and matrix.dbf are the files which underly cosine.dat. Coocc.dat is the file before normalization; and matrix.dbf the asymmetrical data matrix. The latter file can be used for statistical analysis in SPSS, the former for graph-analytical analysis using UCINet or Pajek. 3. Like ISI.EXE, the program IntColl.EXE produces four databases containing the information in the original input set in relational format: au.dbf with the authors; cs.dbf with the address ("corporate sources"); core.dbf with information which is unique for each record (e.g., the title); and cr.dbf containing the cited references. The files are linked through the numbers in core.dbf. If one needs only these files, one is advised to use ISI.EXE, since the computation of the cosine is computer intensive, and therefore time-consuming. The routine creating the matrix and the cosine-normalized output uses the country names in the file cs.dbf as variable names, and the records in core.dbf as the cases (rows). The number of documents is unlimited. The country names can be edited in the output files using an ASCII editor (e.g., Notepad). ________________________________ Loet Leydesdorff Amsterdam School of Communications Research (ASCoR) Kloveniersburgwal 48, 1012 CX Amsterdam Tel.: +31-20- 525 6598; fax: +31-20- 525 3681 [log in to unmask] <mailto:[log in to unmask]> ; http://www.leydesdorff.net/ <http://www.leydesdorff.net/> Now available: The Knowledge-Based Economy: Modeled, Measured, Simulated <http://www.universal-publishers.com/book.php?method=ISBN&book=1581129378> . 385 pp.; US$ 18.95 _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.insna.org). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.