MATLAB Central Spring Contest
in [Matlab]
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From: Steve Hoelzer on 7 May 2008 14:01 "Yi Cao" <y.cao(a)cranfield.ac.uk> wrote in message <fvsot0$gr9$1(a)fred.mathworks.com>... > However, I would like to suggest to use a random function > in runcontest function to make tuning random parameters > imposible. For example, in runcontest function, a line of > rand('state',sum(100*clock)) can make any intention to tune > a random parameter impossible because even with the same > parameters, the results could be totally different if a > random function is used in a code. > > Yi No. The same code must give the same score every time it runs. Otherwise, a new type of random variable "tuning" is possible: submitting the same code multiple times. I too wish that magic number tuning was not a part of the contest, but I don't think it can be programmatically enforced. Steve
From: Steve Hoelzer on 7 May 2008 14:18 "Jin " <xx(a)xx.xx> wrote in message <fvrj7b$kf6$1(a)fred.mathworks.com>... > why bombing the queue? > I sugguest adding some submission limits, such as 1 > entry/per min/per ip. > I think that would be an excellent limitation on submissions. One per minute seems fast enough for tweak bombers to do what they do, but the spacing should help to keep the queue shorter (not "overwhelmed"). Steve
From: David on 7 May 2008 14:34 It would be great if the MATLAB Contest Team would let us know their plans for the end of the contest, ... when the queue is expected to re-open, ... when the deadline for the end of the contest will be, ... and so on.
From: srach on 7 May 2008 14:40 "David " <djones.nospam(a)remove.mcmaster.ca> wrote in message <fvssmq$7pp$1(a)fred.mathworks.com>... > It would be great if the MATLAB Contest Team would let us know their plans for > the end of the contest, ... when the queue is expected to re-open, ... when the > deadline for the end of the contest will be, ... and so on. > > The contest is over. The queue was closed at 12PM and now the remaining entries will be processed to find a winner. Regards, srach
From: Yi Cao on 7 May 2008 14:54
"Steve Hoelzer" <shoelzer(a)gmail.com> wrote in message <fvsqp9$8gg$1(a)fred.mathworks.com>... > No. The same code must give the same score every time it > runs. Otherwise, a new type of random variable "tuning" is > possible: submitting the same code multiple times. I too > wish that magic number tuning was not a part of the contest, > but I don't think it can be programmatically enforced. > > Steve However, currently, it is already possible to resubmit the same code several time to get the best score because the same code wont get the same result on timeing. Yi |