25 lines
713 B
Python
25 lines
713 B
Python
import random
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# The voting strategy. Validators see what every other validator votes,
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# and return their vote.
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#
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# Votes are probabilities with 0 < p < 1 (see
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# http://lesswrong.com/lw/mp/0_and_1_are_not_probabilities/ !)
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def vote_transform(p):
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return (abs(2 * p - 1) ** 0.333 * (1 if p > 0.5 else -1) + 1) / 2
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def vote(probs):
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if len(probs) == 0:
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return 0.5
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probs = sorted(probs)
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score = (probs[len(probs)/2] + probs[-len(probs)/2]) * 0.5
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if score > 0.9:
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score2 = probs[len(probs)/3]
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score = min(score, max(score2, 0.9))
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elif score < 0.1:
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score2 = probs[len(probs)*2/3]
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score = max(score, min(score2, 0.1))
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return vote_transform(score)
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