Message #1776
From: Nan Ma <mananself@gmail.com>
Subject: Re: [MC4D] Re: Ranking list for the 120-Cell
Date: Fri, 10 Jun 2011 17:29:26 -0700
Hi Matt,
You have an interesting point. For a fully scrambled 120 cell, your program
will give a non zero percentage, because the colors of some stickers are
correct by chance. A very coarse computation (incorrectly assuming
statistical independence across different stickers) is that the 1/120 ~ 0.8%
of the stickers are correct by chance. So 0.8% is the "background noise". If
we subtract it from 1.1%, we get 0.3%, which is Ed’s original estimate. I
think Ed’s estimate was very accurate.
Nan
On Fri, Jun 10, 2011 at 5:18 PM, Matthew Galla <mgalla@trinity.edu> wrote:
>
>
> Ed,
>
> I ran your log file through my program and these are the results:
> 2-Color pieces solved: 14 / 720
> 3-Color pieces solved: 8 / 1200
> 4-Color pieces solved: 6 / 600
> Total solved: 1.111 %
>
> The way this works is it counts the number of 2C stickers that are correct
> and divides by 2 (throwing away the remainder) to estimate the number of 2C
> pieces solved. It repeats for 3C and 4C, dividing by 3 and 4 respectfully to
> get the above estimations. Now it is possible that a couple of pieces happen
> to have one or two stickers correct, even though the pieces themselves are
> not in the right spots, and there is no detection for this case, so the
> numbers that appear above should be considered overestimates and the actual
> numbers may be slightly less than above, but certainly not bigger.
>
> It looks like you can claim a little more is done that you originally said!
> ;)
> Then again, maybe this isn’t accurate enough to claim much at all. What can
> be said is my program is more accurate the colser to solved you are, so it
> is best used for those cases. Anyways enjoy.
>
> If anyone else would like me to run their log file through the program,
> just let me know. Sorry Nan, but you are right, my program only works for
> the Magic120Cell program’s log files for now. :/
>
> -Matt Galla
>
> On Fri, Jun 10, 2011 at 3:02 PM, Eduard Baumann <baumann@mcnet.ch> wrote:
>
>>
>> [Attachment(s)<https://mail.google.com/mail/html/compose/static_files/blank_quirks.html#1307b268fa4602b2_TopText>from Eduard Baumann included below]
>>
>>
>> Hi Matt,
>>
>> Here is my 120cell_partial_solve log file for evaluation.
>>
>> Kind regards
>> Ed
>>
>>
>> —– Original Message —–
>> *From:* Matt Galla <mgalla@trinity.edu>
>> *To:* <4D_Cubing@yahoogroups.com> <4D_Cubing@yahoogroups.com%3E>
>> *Sent:* Friday, June 10, 2011 9:36 PM
>> *Subject:* Re: [MC4D] Re: Ranking list for the 120-Cell
>>
>>
>>
>> While I was still solving the 120Cell I wrote a short java program that
>> gives the exact number of stickers in the correct spot and makes a guess as
>> to how many of which type of piece is solved based on the stickers. It then
>> estimates a percentage complete of the whole puzzle (# of correct PIECES /
>> 2520). It is by no means complex or super sophisticated but it is set up and
>> ready to read any Magic120Cell log file. If any of the partial solvers would
>> like a more accurate estimation of their completion percentage I’d be happy
>> to run your log file through the program and relay the output to you. Just
>> send me an email with your most current log file attached.
>>
>> -Matt Galla
>>
>> Sent from my iPhone
>>
>> On Jun 10, 2011, at 2:21 PM, Nan Ma <mananself@gmail.com> wrote:
>>
>>
>>
>> Hi,
>>
>> Let me put 3% in it. That’s by no means accurate.
>>
>> 1. Noel Chalmers 100%
>> 2. Matt Galla 100%
>> 3. Adam Ford 100%
>> 4. Andrey Astrelin 10%
>> 5. Nan Ma 3%
>> 6. Eduard Baumann 0.3%
>>
>> Thanks.
>>
>> Nan
>>
>> On Fri, Jun 10, 2011 at 3:57 AM, Eduard < <baumann@mcnet.ch>
>> baumann@mcnet.ch> wrote:
>>
>>>
>>>
>>> Nan Ma: Please complete the list below!
>>>
>>> 120cell performers (including partial solves):
>>>
>>> Update 06/10/2011
>>>
>>>
>>> 1. Noel Chalmers 100%
>>> 2. Matt Galla 100%
>>> 3. Adam Ford 100%
>>> 4. Andrey Astrelin 10%
>>> 5. Nan Ma ??%
>>>
>>> 6. Eduard Baumann 0.3%
>>>
>>> — In <4D_Cubing%40yahoogroups.com>4D_Cubing@yahoogroups.com, "Eduard"
>>> <baumann@…> wrote:
>>> >
>>> > Update 03/13/2011
>>> >
>>> > 1. Noel Chalmers 100%
>>> > 2. Matt Galla 100%
>>> > 3. Adam Ford 100%
>>> > 4. Andrey Astrelin 10%
>>> > 5. Eduard Baumann 0.3%
>>> >
>>> > — In <4D_Cubing%40yahoogroups.com>4D_Cubing@yahoogroups.com,
>>> "Eduard" <baumann@> wrote:
>>> > >
>>> > > 1. Noel Chalmers 100%
>>> > > 1. Matt Galla 100%
>>> > > 3. Andrey Astrelin 10%
>>> > > 4. Eduard Baumann 0.3%
>>> > >
>>> > > Others?
>>> > >
>>> >
>>>
>>>
>>
>
>