arrows Posted August 9, 2006 Report Share Posted August 9, 2006 As far as I know, GIB finished the 12th in the par contest 1998, in Lille, France.That's 8 years ago. Tried a few session of money bridge, but the GIBs I messed withat BBO are clearly not of this calibre. I have a couple of questions: 1. Is the GIB running on BBO server a full-featured one?2. What is the setting of the sample space? Would it be possible to use larger sample space setting? Thanks Quote Link to comment Share on other sites More sharing options...
uday Posted August 9, 2006 Report Share Posted August 9, 2006 It is full featured. How it performs is mostly a function of how long we're willing to give it to think per hand (which in turn affects how long you have to wait for it). How long we give it is a function (at money bridge tables) of whether the host clicks slow/med/fast on robot-speed. In money bridge tourneys, we give it, IIRC, something like 30 or 40 seconds per seat ( human has one, robot has the other 3). The speed of the rented GIBS ( the $1/day, $3/week thing) is a per-user setting and is not related to the two types of server-side gibs (mb. mbt) Gib has some special settings for par contests, we don't use those. Quote Link to comment Share on other sites More sharing options...
arrows Posted August 9, 2006 Author Report Share Posted August 9, 2006 As I understand, GIB choose what card to play based on the result of monte carlo simulation. I think there's parameter, the size of sample space, setting how many random hands GIB should analysis before making its play. What is the size of the sample space right now? is it possible to set the sample space larger? say greater than 100? Quote Link to comment Share on other sites More sharing options...
uday Posted August 9, 2006 Report Share Posted August 9, 2006 Without touching src, i believe you can only control the # of hands in card play (not, say, in picking a bid). I use the defaults now; I've seen GIB go belly up once in a while when the # was set "too high", so I'm playing it safe. Additionally, perhaps it is smart enough to use larger numbers when it has more time? not clear. Quote Link to comment Share on other sites More sharing options...
arrows Posted August 9, 2006 Author Report Share Posted August 9, 2006 It is reported that GIB's card play is "much worse" if the sample size reduced from 100 to 50... Maybe more than 200 is expensive and unnecessary, but less than 100, I guess it's not enough for GIB to make an "intelligent" choice.. Quote Link to comment Share on other sites More sharing options...
hotShot Posted August 10, 2006 Report Share Posted August 10, 2006 The number of deal needed to make a good descision depends on the amount of information available to the GIBs.e.g. bidding is 1NT - all pass. So the amount of possible distributions at the first trick is very big. The chance that the sample deals GIB generates differ much form the actual distribution is much greater than those after a more detailed bidding sequence.So the opening lead and the first few tricks of a GIB declarer/defender can be very bad. With each trick played the possible amount of distribution shriks rapidly, while the number of samples that can be processed (in the given time) increases. Quote Link to comment Share on other sites More sharing options...
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