Re: Topics on influence

[Stuart Cracraft <cracraft@xxxxxxxxxxxxx>]

Can you provide the function you used to calculate those numbers
as well as its method of use?

At 07:16 AM 3/31/99 -0800, you wrote:
>
>Okay, let's say there is a corner like this:
>
>
>    . . . . . . 
>    . . . . . . 
>    O O X X O .
>    . X O O O . 
>    . X X . . . 
>
>What would a common influence function calculate for the
>above (per square)?
>
>With 3 tactically unsettled groups on the board the 
>influence doesn't mean much.  My influence function
>has high white influence everywhere, and black influence
>very near 0 everywhere.  The white influence comes from
>the 4 stone group.
>
>The territory estimates, in 50ths of a point, with positive
>better for white are:
>
>6
>11 8
>17 13 8  6  9  8
>26 19 15 12 13 13 8
>39 30 29 20 21 19 13 8
>0  0  0  0  11 27 17 12 7
>0  0 -15-15 45 45 28 19 13 9  5  3  2  1  1
>6  6  6  45 45 45 45 31 21 15 10 6  4  2  1
>6  6  6  45 50 47 32 20 12 9  6  4  2  1
>
>I only have one influence function at the moment that I
>use for territory estimation.  You can look at the
>handtalk web page for a description of his influence
>function that he uses for connectivity.
>
>David
>
>At 09:02 PM 3/30/99 -0800, you wrote:
>>Could you give examples of each for the example given,
>>with corner in lower-left.
>>
>>Looking for three sample influence functions for the
>>three purposes you mentioned.
>>
>>At 08:21 PM 3/30/99 -0800, David Fotland wrote:
>>>
>>>
>>>I can't tell which is the corner :) 
>>>
>>>Influence functions can be used to help determine
>>>connectivity, help tell if a group is surrounded, and
>>>help find secure territory.  I suspect a different
>>>function is ideal for each purpose.
>>>
>>>David
>>>
>>>At 07:31 AM 3/30/99 -0800, Stuart Cracraft wrote:
>>>>
>>>>Okay, let's say there is a corner like this:
>>>>
>>>>
>>>>    . . . . . . 
>>>>    . . . . . . 
>>>>    O O X X O .
>>>>    . X O O O . 
>>>>    . X X . . . 
>>>>
>>>>What would a common influence function calculate for the
>>>>above (per square)?
>>>>
>>>>I am interested particularly in the influence function that
>>>>calculates the likelihood of a particular stone surviving.
>>>>
>>>>--Stuart
>>>>
>>>>At 09:45 PM 3/29/99 -0800, you wrote:
>>>>>
>>>>>
>>>>>I just use it tell if groups are surrounded, and to estimate
>>>>>the territory count and thickness.  I don't make high level
>>>>>plans.  Just take it one move at a time.
>>>>>
>>>>>David
>>>>>
>>>>>
>>>>>At 12:34 PM 3/30/99, Darren Cook wrote:
>>>>>>>I like best the idea that the influnce of each color measures the
>>>>>>>probability that a stone of that color can be placed there and live.
>>>>>>
>>>>>>This is a nice complement to the idea that territory is a point where a
>>>>>>stone of the opposite colour will be dead.
>>>>>>
>>>>>>Once you've found influence what do you do with it? A human might use
>>it to
>>>>>>construct high level plans, but are computer programs really upto that
>>kind
>>>>>>of thing?
>>>>>>
>>>>>>Darren
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>
>>
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