Re: number of values

Dr. Vesa A. Niskanen (vesa.a.niskanen@helsinki.fi)
Mon, 21 Jun 1999 05:11:25 +0200 (MET DST)

On Tue, 15 Jun 1999, Boris Shukhat wrote:

> Hi!
> It is well known that a human being usually uses 7-9 grades or
> linguistic terms to describe an intensity of some feature. As far as I
> know it is an empirical fact received in some psychological studies. It
> reflects some compromise between a loss of information as a result of
> granulation and a cost of manipulating those terms.
> Does anybody know if there is any estimate on how the cost of
> manipulating those linguistic terms depends on their number?
> Thanks,
> Boris Shukhat.

>From the psychological standpoint, the number of linguistic values on a given scale usually stem from ideas such as Likert's scale and the semantic differential technique (Osgood & al.). Then, for example, visual stimulii allow to use more values than the auditory ones.
****************************************************************
Mr. Vesa A. Niskanen
Ph. D., Docent
University of Helsinki, Dept. of Economics and Management
PO Box 27, 00014 Helsinki
Tel: +358 40 503 2031 (mobile, gsm), fax: +358 9 708 58096
E-mail: vesa.a.niskanen@helsinki.fi
www.helsinki.fi/~niskanen/
OMNIA MEA MECUM PORTO
*****************************************************************

############################################################################
This message was posted through the fuzzy mailing list.
(1) To subscribe to this mailing list, send a message body of
"SUB FUZZY-MAIL myFirstName mySurname" to listproc@dbai.tuwien.ac.at
(2) To unsubscribe from this mailing list, send a message body of
"UNSUB FUZZY-MAIL" or "UNSUB FUZZY-MAIL yoursubscription@email.address.com"
to listproc@dbai.tuwien.ac.at
(3) To reach the human who maintains the list, send mail to
fuzzy-owner@dbai.tuwien.ac.at
(4) WWW access and other information on Fuzzy Sets and Logic see
http://www.dbai.tuwien.ac.at/ftp/mlowner/fuzzy-mail.info
(5) WWW archive: http://www.dbai.tuwien.ac.at/marchives/fuzzy-mail/index.html