Applied Negotiation Seminar Homework presentation Evolving New Strategies The Evolution of Strategies in the Iterated Prisoner’s Dilemma by Robert Axelrod Brandi, Guido Doviborova, Janina
THE PRISONER‘S DILEMMA Source: https://www.youtube.com/watch?v=BOvAbjfJ0x0
WITH ITERATIVE PRISONER ‘ S DILEMMA YOU GET TO COPERATE OR TO DEFECT MORE THEN ONCE
ALWAYS DEFECTING BRINGS MORE POINTS IN RANDOM STRATEGY BUT…
TIT FOR TAT – ONE COOPERATING ON THE FIRST MOVE AND THEN DOING WHATEVER THE OTHER PLAYER DID ON THE PRECEDING MOVE
IN 198O MR. AXELROD MAKE A GAME WITH 14 STRATEGIES AND TIT FOR TAT ALWAYS WINS
OPTIMAL TIT FOR TAT IS WHEN NO ONE DEFECTS
8 TIT FOR TAT STRATEGIES 98% OF TOURNAMENT SCORES ARE COVERED BY THESE 8 STRATEGIES
GRUDGER STRATEGY – ONCE DEFECTED NEVER COOPERATES AGAIN
TO COOPERATE IS THE BEST STRATEGY
SIMULATION TECHNIQUE IS CALLED GENETIC ALGORITHM
ALGORITHM EVOLVED POPULATIONS WHOSE WAS JUST AS SUCCESSFUL AS THE BEST RULE IN THE TOURNAMENT OR TIT FOR TAT
GENETIC ALGORITHM IS HIGHLY EFFECTIVE METHOD OF SEARCHING EFFECTIVE STRATEGIES
GENETIC ALGORITHM IS HIGHLY EFFECTIVE METHOD OF SEARCHING EFFECTIVE STRATEGIES
ONE TIT FOR TAT CAN‘T SURVIVE IN ALWAYS DEFECT ENVIRONMENT
INCREASED CHANCE OF ACHIEVING HIGHLY EFFECTIVE POPULATIONS
THERE IS INCREASED CHANCE OF ACHIEVING HIGHLY EFFECTIVE POPULATIONS
TIT FOR TAT HAD DONE BEST IN THE COMPUTER TOURNAMENT
THANK YOU FOR YOUR ATTENTION!
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