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<div class="moz-cite-prefix">Toby,<br>
<br>
A while ago some-one coined the "Blank Ballots Criterion" that
just said that the result shouldn't change if we add (or remove)
some<br>
"blank ballots".<br>
<br>
But it struck me that a method that breaches this in spirit would
usually meet the letter of it by simply refusing to count such
ballots<br>
as "valid".<br>
<br>
So I coined "Irrelevant Ballots Independence" that just said that
if we add some ballots that do nothing but plump for some
candidate <br>
with fewer above-bottom votes than any other candidate and that is
ignored or not voted above bottom on all the other ballots then<br>
the result shouldn't change.<br>
<br>
It is failed by Bucklin and tends to be failed by methods that use
arbitrary percentage thresholds of all the valid ballots as part
of their<br>
algorithms.<br>
<br>
Chris Benham<br>
<br>
<br>
On 11/9/2016 8:20 AM, Toby Pereira wrote:<br>
</div>
<blockquote
cite="mid:234797186.1633974.1478641820726@mail.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff;
font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial,
Lucida Grande, Sans-Serif;font-size:13px"> I've noticed people
(mainly Chris Benham I think) talking about "irrelevant
ballots", and I just wanted to clear up the definition that
people use. My intuitive understanding is that a ballot is
irrelevant with respect to candidates A and B if it ranks/rates
them equally or doesn't rank/rate them at all. So if A is
elected over B then the addition or removal of any such ballots
would never cause B to be elected over A.</div>
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