Last change
on this file was
1190,
checked in by Maciej Komosinski, 2 years ago
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Added the "evolalg" module for evolutionary optimization
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File size:
592 bytes
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Line | |
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1 | import numpy as np |
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2 | |
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3 | |
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4 | class RandomIndexSequence: |
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5 | """A helper function for tournament selection. Allows each individual to take part in a tournament, |
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6 | thus reducing the risk of overlooking individuals by not sampling them due to uncontrolled |
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7 | randomness, as can happen in the naive implementation of tournament selection.""" |
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8 | |
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9 | def __init__(self, popsize): |
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10 | self.popsize: int = popsize |
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11 | self.permut: list = [] |
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12 | |
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13 | def getNext(self): |
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14 | if len(self.permut) < 1: |
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15 | self.permut = list(np.random.permutation(self.popsize)) |
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16 | return self.permut.pop() |
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