On Dec 30, 2007 6:51 AM, Kevin Venzke <<a href="mailto:stepjak@yahoo.fr">stepjak@yahoo.fr</a>> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="Ih2E3d">Rob,<br><br>--- rob brown <<a href="mailto:rob@karmatics.com">rob@karmatics.com</a>> a écrit:<br></div><div class="Ih2E3d">> Anyway, as I'm sure you know, that system (rank/rate your candidates
<br>> honestly, let the system generate the most strategic approval ballot) is<br>> simply DSV, and it works out to be the same as Condorcet.<br><br></div>How does your method resolve:</blockquote><div><br>Not sure what you are referring to as "my method". I use DSV as an explanatory device (
i.e. "a software agent which takes your preferences as input and produces the most strategic approval ballot"), but I advocate any condorcet method, and don't see a lot of point debating the differences between the various condorcet resolution methods.
<br><br>I have messed around with producing my own method, but its main benefit is that it produces nice stable *scores* for each candidate that can appear in a bar chart. ( <a href="http://karmatics.com/voting/bars-demo.html">
http://karmatics.com/voting/bars-demo.html</a> ) <br><br>With regard to:<br><br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">49 A<br>
24 B>C<br>27 C>B</blockquote><div><br>C wins, condorcet winner.<br><br>My scoring system gives C a score of 35.13, vs 25.75 for B and 15.12 for A. I think those are pretty reasonable scores.<br><br>Matrix/scores:<br>
<br>c 35.13<br>b 24.75<br>a 15.12<br><br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">vs.<br>49 A<br>24 B<br>27 C>B</blockquote>
<div><br>a wins (by my method), but it is a condorcet cycle. b comes in second.<br><br>a 37.02<br>b 33.37<br>c 29.61<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
May I assume a voter is allowed to bullet-vote? </blockquote><div><br>Sure. If they prefer one candidate to all the others, and consider the others to be equal, a bullet vote is a sincere ballot. (they should also be able to do things like B=C>A, in my opinion)
<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">If not, how does your method resolve:<br>40 A>B>C<br>35 B>C>A<br>25 C>A>B
<br></blockquote><div><br>Condorcet cycle again. My scoring system gives b a razor thin margin. (score 35.8 to 35.64)<br><br>b 35.8<br>a 35.64<br>c 28.56<br><br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Does your information allow rated information? It seems this should be no<br>problem since you would not have any incentive to exaggerate your<br>preferences when the method does its best to get you what you want.</blockquote>
<div><br>My scoring system would just reduce that ordinal rankings, partly for the convenience of being able to express that as a pairwise matrix. But I have no problem with a system that the users enter ratings, as long as they aren't tabulated a la Range Voting.
<br><br>In the past, I tossed out a proposal (intended more as a thought experiment than a practical suggestion) for a DSV method that voters entered cardinal ratings:<br><a href="http://listas.apesol.org/pipermail/election-methods-electorama.com/2005-December/017781.html">
http://listas.apesol.org/pipermail/election-methods-electorama.com/2005-December/017781.html</a><br></div><div><br>I think if that method was actually used, there would be almost zero benefit to attempting to vote strategically, and there would be literally zero benefit in the majority of elections. But even in those where that was any benefit at all, to get that benefit would be exceptionally hard because of the need to know others preferences with extreme precision.
</div></div><br>Actually, I think in real world elections, that is true for any Condorcet method.<br><br><br><br>