Availability of an on-line implementation of metric for determining similarity of sets

Dr. Rodham E. Tulloss ret at NJCC.COM
Wed Nov 12 21:43:41 CST 2003

A tripartite similarity metric designed to avoid flaws in previously
existing similarity indices is now available on-line.  Instructions are
available on-line as is a link to the original paper that designed the
core mathematics of the metric (in pdf format).

Within a few days, sample uploadable datasets will be available on the
site (in both SIT and ZIP formats).  The similarity calculator will take
cut-and-paste, manual entry, or uploaded file(s) as input.  Input can be
supplied as a set of separate lists or as a presence-absence table
(e.g., a plain text format of a spreadsheet with columns as lists, rows
as items in lists).

The calculator, its instructions, etc. can be accessed from


The instructions alone can be accessed at


A bibliography of a small number of papers already known to have used
the tripartite similarity metric is also provided on the site at



Rod Tulloss

Dr. Rodham E. Tulloss
Research Associate (hons.), The New York Botanical Garden (NY)

postal address: P. O. Box 57, Roosevelt, NJ 08555-0057, USA

email: ret at njcc.com

URL Amanita studies: http://pluto.njcc.com/~ret/amanita/mainaman.html

URL similarity metric: http://amanitabear.com/similarity/

URL farm preservation and environment: http://pluto.njcc.com/~ret/ffr/

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