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I have been running some extensive TargetingChallenge tests with DarkHallow and I have noticed that the number of GuessFactors seems to not make much of a difference beyond about 23. Admitedly this is the TC and hardly representative of actual Robocode conditions but I think it is an interesting observation. I have tested 2 seasons each (500 rounds) for all odd GuessFactors from 23 to 47. In each instance I found that there is little or no difference between any of them. A slight uptick was to be had in the move from 23 - 25 but not significant. At smaller bin counts, using bot width to determine the correct aiming factor adversly affected the hit rate. As the number of bins increased I found that using bot width had less of a adverse affect but rarely performed better than simply always assuming that an enemy had a width of 3 GuessFactors (DH's default characteristic). I did not do any testing without some sort of bin smoothing as I have always found that performs poorly. I may need to run some of those tests to see how it works out. This has all been done with DH and the TC. Take my results with a grain of salt. -- jim

This is about what I have found too. Maybe if you are fitting your bot for battles on 1000 X 1000 fields you should opt for 29 bins or something. I haven't found that assuming a bot width of 3 bins should be better than assuming 1 bin though. Not that I have tested it very much. -- PEZ

I have done some limited testing of no smoothing and I find that assuming a width of 3 bins seems to make me slightly more accurate in the short run but has no effect at all in the long run. I am not sure why this is. Maybe it helps to "smear" the data when you do not have many observations but does not hurt to have the data "smeared" when you have a lot. I find all of this interesting. My initial assumption was that the more bins I used the more finely chopped my data would be and there for the data would show more spikes. Now I am wondering if I have over segmented any of my other segments as well. -- jim


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Edited August 27, 2004 16:20 EST by Strider (diff)
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