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Article #2937Re: Incorrect Benchmark summary.
From: Peter S. Shenkin
Date: Sat, 27 Sep 1986 18:22
Date: Sat, 27 Sep 1986 18:22
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1773 bytes
In article <ames.1675> eugene@ames.UUCP (Eugene Miya) writes:
>>
>> The averaging in this table is done incorrectly. As noted in a recent CACM
>> article, normalized benchmark results should be averaged with a geometric
>> mean, not an arithmetic mean.
>> Radford Neal
>> The University of Calgary
>
>There is no clear cut evidence that the geometric mean is any more correct
>than any other [Re: the Flemming and Wallace paper]. Jack Wolton of
>Los Alamos published a paper in 1984...
>This paper touted the HARMONIC mean as the "correct" mean....
Note that if the values being averaged don't have too much spread, all these
means are about the same; also, even if the distributions of values have
large spread, I believe the distributions being compared have to be rather
different in form for the different methods of calculating the mean
to give different rank-orders. (But I seem to have missed the original
article to which this refers, so I'm not sure what's being compared!)
Peter S. Shenkin Columbia Univ. Biology Dept., NY, NY 10027
{philabs,rna}!cubsvax!peters cubsvax!peters@columbia.ARPA
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!cbatt!ihnp4!qantel!lll-lcc!lll-crg!seismo!cmcl2!rna!cubsvax!peters From: peters@cubsvax.UUCP (Peter S. Shenkin) Newsgroups: net.arch Subject: Re: Incorrect Benchmark summary. Message-ID: <544@cubsvax.UUCP> Date: Sat, 27-Sep-86 14:22:01 EDT Article-I.D.: cubsvax.544 Posted: Sat Sep 27 14:22:01 1986 Date-Received: Tue, 30-Sep-86 06:16:10 EDT References: <322@oblio.UUCP> <20954@rochester.ARPA> <393@vaxb.calgary.UUCP> <ames.1675> Reply-To: peters@cubsvax.UUCP (Peter S. Shenkin) Organization: Columbia Univ. Bio. CG Fac., NY Lines: 22