Comments on: Best Result by 4 PM Challenge http://blogs.mathworks.com/contest/2007/05/15/best-result-by-4-pm-challenge/ 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 Sat, 21 Jan 2012 14:45:27 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Alan Chalker http://blogs.mathworks.com/contest/2007/05/15/best-result-by-4-pm-challenge/#comment-2110 Alan Chalker Wed, 16 May 2007 01:38:15 +0000 http://blogs.mathworks.com/contest/?p=71#comment-2110 Strange bug in the comments. It seems to be trying to filter out anything that has a left or right carat and a dash as a html tag. Here is the table without the carat and dash Time Res 151 1 146 10000 123 30000 108 35000 86 38000 60 39000 50 39230 42.5 39302 - current leader 30 39400 20 39425 10 39440 1 39450 We are in an interesting 'sweet spot' right now on the leaderboard. Each .1 secs of time is equal to .85 points of results. Strange bug in the comments. It seems to be trying to filter out anything that has a left or right carat and a dash as a html tag. Here is the table without the carat and dash

Time Res
151 1
146 10000
123 30000
108 35000
86 38000
60 39000
50 39230
42.5 39302 – current leader
30 39400
20 39425
10 39440
1 39450

We are in an interesting ‘sweet spot’ right now on the leaderboard. Each .1 secs of time is equal to .85 points of results.

]]> By: Alan Chalker http://blogs.mathworks.com/contest/2007/05/15/best-result-by-4-pm-challenge/#comment-2109 Alan Chalker Wed, 16 May 2007 01:35:21 +0000 http://blogs.mathworks.com/contest/?p=71#comment-2109 Oops.. my table got cutoff: Time Res 151 1 146 10000 123 30000 108 35000 86 38000 60 39000 50 39230 42.5 39302 Oops.. my table got cutoff:

Time Res
151 1
146 10000
123 30000
108 35000
86 38000
60 39000
50 39230
42.5 39302

]]> By: Alan Chalker http://blogs.mathworks.com/contest/2007/05/15/best-result-by-4-pm-challenge/#comment-2108 Alan Chalker Wed, 16 May 2007 01:34:14 +0000 http://blogs.mathworks.com/contest/?p=71#comment-2108 Since there are still over 100 entries in the queue prior to the 4PM challenge cutoff, which by my estimates will take over 5 hours still to clear (~2AM), I thought I'd post an analysis of the score vs time tradeoff. The current leading entry from MikeR has a score of 3947 (res=39301, time=42.5s). The current best result entry is from SY, with a result of 38587 and a time of 175 secs has a score of 16500. In order to turn this into the winning entry, the TIME would have to be reduced from 175 s to 75 s (a 64% drop in time) it's impossible to simply reduce the result further and take the lead with such a long entry. An entry with a result of 1 (which is obviously impossible) would be able to take the lead with a time of ~ 151 secs. Here's my attempt at a table showing some of the key 'break even' points across the timing spectrum (all scores ~3947) Time Res 151 1 146 10000 123 30000 108 35000 86 38000 60 39000 50 39230 42.5 39302 Since there are still over 100 entries in the queue prior to the 4PM challenge cutoff, which by my estimates will take over 5 hours still to clear (~2AM), I thought I’d post an analysis of the score vs time tradeoff.

The current leading entry from MikeR has a score of 3947 (res=39301, time=42.5s). The current best result entry is from SY, with a result of 38587 and a time of 175 secs has a score of 16500.

In order to turn this into the winning entry, the TIME would have to be reduced from 175 s to 75 s (a 64% drop in time) it’s impossible to simply reduce the result further and take the lead with such a long entry.

An entry with a result of 1 (which is obviously impossible) would be able to take the lead with a time of ~ 151 secs.

Here’s my attempt at a table showing some of the key ‘break even’ points across the timing spectrum (all scores ~3947)

Time Res
151 1
146 10000
123 30000
108 35000
86 38000
60 39000
50 39230
42.5 39302

]]>