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	<title>Comments on: Sergey Yurgenson is Our Early Bird Winner, Saturday Leap Announced</title>
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	<link>http://blogs.mathworks.com/contest/2007/11/09/sergey-yurgenson-is-our-early-bird-winner-saturday-leap/</link>
	<description>The MATLAB Programming Contest is a semi-annual competition where contestants submit MATLAB code to try to solve a challenge.  For more information, see http://www.mathworks.com/contest/overview.html</description>
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		<title>By: Alan Chalker</title>
		<link>http://blogs.mathworks.com/contest/2007/11/09/sergey-yurgenson-is-our-early-bird-winner-saturday-leap/#comment-2662</link>
		<dc:creator>Alan Chalker</dc:creator>
		<pubDate>Sat, 10 Nov 2007 17:40:23 +0000</pubDate>
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		<description>As I&#039;ve done in the past, I&#039;ve also now submitted a heavily commented version of the Friday night leading code to help casual players better understand how the algorithms work.  It&#039;s titled &quot;Read Me 1st&quot; and is submission # 43338
http://www.mathworks.com/contest/splicing.cgi/view_submission.html?id=43338

Other obligations are preventing me from commenting it quite to the extent I&#039;ve done in the past, but I think this should still be quite helpful.  If you make changes, please don&#039;t remove the comments.  Let&#039;s keep this contest &#039;in the daylight&#039; as much as possible instead of obscufating everything.</description>
		<content:encoded><![CDATA[<p>As I&#8217;ve done in the past, I&#8217;ve also now submitted a heavily commented version of the Friday night leading code to help casual players better understand how the algorithms work.  It&#8217;s titled &#8220;Read Me 1st&#8221; and is submission # 43338<br />
<a href="http://www.mathworks.com/contest/splicing.cgi/view_submission.html?id=43338" rel="nofollow">http://www.mathworks.com/contest/splicing.cgi/view_submission.html?id=43338</a></p>
<p>Other obligations are preventing me from commenting it quite to the extent I&#8217;ve done in the past, but I think this should still be quite helpful.  If you make changes, please don&#8217;t remove the comments.  Let&#8217;s keep this contest &#8216;in the daylight&#8217; as much as possible instead of obscufating everything.</p>
]]></content:encoded>
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		<title>By: Alan Chalker</title>
		<link>http://blogs.mathworks.com/contest/2007/11/09/sergey-yurgenson-is-our-early-bird-winner-saturday-leap/#comment-2659</link>
		<dc:creator>Alan Chalker</dc:creator>
		<pubDate>Sat, 10 Nov 2007 05:00:28 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.mathworks.com/contest/2007/11/09/sergey-yurgenson-is-our-early-bird-winner-saturday-leap/#comment-2659</guid>
		<description>Here is my traditional analysis of the scoring formula.  I noticed the the rules for this contest don&#039;t explicitly spell out the scoring formula as in past contests, however I&#039;ve determined it&#039;s exactly the same is for the Peg Solitaire contest, which is:

score = k1*result + k2*e(k3*runtime) + k4*max(complexity-10,0)

Where:

k1 = 0.1
k2 = 2
k3 = 0.05
k4 = 1

The current leading entry has a time of 91s, result of 59747, and cyc of 24.  Here&#039;s a breakdown of the current tradoffs:

-cyc and score are a 1:1 ratio (i.e. each point shaved off cyc is a point shaved off the score)

-time and score are a 0.1:0.95 ratio 
-result and score are a 1:0.1 ratio

We are a little past the &#039;knee&#039; of the time exponential curve, which is rather flat until about ~80s).  Therefore more is to be gained right now by shaving off time than anything else. Hope this helps everyone!</description>
		<content:encoded><![CDATA[<p>Here is my traditional analysis of the scoring formula.  I noticed the the rules for this contest don&#8217;t explicitly spell out the scoring formula as in past contests, however I&#8217;ve determined it&#8217;s exactly the same is for the Peg Solitaire contest, which is:</p>
<p>score = k1*result + k2*e(k3*runtime) + k4*max(complexity-10,0)</p>
<p>Where:</p>
<p>k1 = 0.1<br />
k2 = 2<br />
k3 = 0.05<br />
k4 = 1</p>
<p>The current leading entry has a time of 91s, result of 59747, and cyc of 24.  Here&#8217;s a breakdown of the current tradoffs:</p>
<p>-cyc and score are a 1:1 ratio (i.e. each point shaved off cyc is a point shaved off the score)</p>
<p>-time and score are a 0.1:0.95 ratio<br />
-result and score are a 1:0.1 ratio</p>
<p>We are a little past the &#8216;knee&#8217; of the time exponential curve, which is rather flat until about ~80s).  Therefore more is to be gained right now by shaving off time than anything else. Hope this helps everyone!</p>
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