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<p>Yes, I thought I sent my last email to the list.<br>
<br>
I don't find dreaming up ballot combinations easy either.<br>
<br>
Obviously if you are just trying to find the winner the more
pairwise defeats you can ignore<br>
the easier your task is.<br>
<br>
Chris Benham<br>
</p>
<div class="moz-cite-prefix">On 23/05/2019 9:48 am, robert
bristow-johnson wrote:<br>
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<p><br>
i'm posting this to the list.?? i hope it's okay.</p>
<p>i had been asked:<br>
<br>
> This "plausible example" you can think of, why don't you
show it to us?</p>
<p>i'm not as good as you guys in dreaming up the number of
ballots ranked however:</p>
<p>?? ex. A>B>C>D</p>
<p>but could you have a defeat matrix where</p>
<p>??
??A>B>C</p>
<p>but?? ??C>A by a smaller defeat strength than A>B or
B>C.?? But D>A by an even smaller defeat strength, however
D<B and D>C?????</p>
<p>i dunno how to dream up ballot combinations to do that.</p>
<p><br>
> Without it all I can say that is that the River winner may
or may not be<br>
> a "better choice" than the<br>
> RP winner.<br>
><br>
> River's main practical point is that it easier than Schulze
and RP to use.</p>
<p>i think it's more complicated than RP.?? it's RP with an
additional exception.</p>
<p>??</p>
<p>i have to say i am still not convinced of WV.?? probably
Schulze-Margins is still the best, but RP-Margins
good enough and possibly easier to sell to policy makers and the
public.</p>
<p>i like Margins in principle:?? The percentage Margin is
(WV-LV)/(WV+LV) and is a measure of the decisiveness of defeat,
without respect to the size of the election.?? So 5% defeat is a
more decisive defeat than a
4% defeat.</p>
<p>But if you consider every Condorcet pair as it's own little
election, then the salience of the election would be the number
of voters that weigh in on it, which is WV+LV.</p>
<p>So if the net defeat strength (the index to rank the pairs) is
the product of how important the election
is with the decisiveness of defeat you get:</p>
<p>?? ??(WV+LV) x (WV-LV)/(WV+LV)?? =?? WV - LV??</p>
<p>it just seems to me that Margins is better than WV.</p>
<p>but say, WV, is a good idea for defeat strength.?? is LV a
better idea?</p>
<p>hmmmm.</p>
<p>--<br>
<br>
r b-j?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ??<a class="moz-txt-link-abbreviated" href="mailto:rbj@audioimagination.com">rbj@audioimagination.com</a><br>
<br>
"Imagination is more important than knowledge."<br>
??</p>
<p>??</p>
<p>??</p>
<p>??</p>
<br>
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<pre class="moz-quote-pre" wrap="">----
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