HistCite question

[Alexander Grimwade]

HistCite uses the open source graph vizualization program, GraphViz, to
create historiographs ( <http://www.graphviz.org/>
http://www.graphviz.org/). The principles for creating the diagrams are very
simple.

*	

	Vertical axis -- time
*	

	Size of nodes is proportional to the citation score (local or
global, depending on the criteria used to create the graph).
*	

	The position of the nodes on the horizontal axis and the positioning
of edges (the arrows connecting the nodes) is determined by the program
based on aesthetic principles to minimize the number of crossing
connections. There is no information in the horizontal positioning. This can
result in tiny changes in the data set giving rise to large visible changes
in the graph, due to horizontal repositioning of nodes.

---------------------------
Alexander M Grimwade Ph. D.
HISTCITE SOFTWARE LLC
P. O. Box 2423
Bala-Cynwyd PA 19004
USA

agrimwade at histcite.com
(484) 270 8471
www.histcite.com



 

  _____  

From: ASIS&T Special Interest Group on Metrics
[mailto:SIGMETRICS at LISTSERV.UTK.EDU] On Behalf Of clay templeton
Sent: Wednesday, January 16, 2008 10:25 PM
To: SIGMETRICS at LISTSERV.UTK.EDU
Subject: [SIGMETRICS] HistCite question


Pardon my asking, but is there any public information on the
algorithm/technique used by HistCite to arrange results in its graphic
rendering of citation relationships?  
 
Thomas.Clay.Templeton
Goddard Space Flight Center
(301) 286-1310
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