PoliciesMultiPlayers.CentralizedFixed module¶
CentralizedFixed: a multi-player policy which uses a centralized intelligence to affect users to a FIXED arm.
- It allows to have absolutely no collision, if there is more channels than users (always assumed).
- But it is NOT fair on ONE run: the best arm is played only by one player.
- Note that in average, it is fair (who plays the best arm is randomly decided).
- Note that it is NOT affecting players on the best arms: it has no knowledge of the means of the arms, only of the number of arms nbArms.
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class
PoliciesMultiPlayers.CentralizedFixed.
Fixed
(nbArms, armIndex, lower=0.0, amplitude=1.0)[source]¶ Bases:
PoliciesMultiPlayers.BaseCentralizedPolicy.BaseCentralizedPolicy
Fixed: always select a fixed arm, as decided by the CentralizedFixed multi-player policy.
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nbArms
= None¶ Number of arms
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armIndex
= None¶ Index of the fixed arm
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__module__
= 'PoliciesMultiPlayers.CentralizedFixed'¶
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class
PoliciesMultiPlayers.CentralizedFixed.
CentralizedFixed
(nbPlayers, nbArms)[source]¶ Bases:
PoliciesMultiPlayers.BaseMPPolicy.BaseMPPolicy
CentralizedFixed: a multi-player policy which uses a centralized intelligence to affect users to a FIXED arm.
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__init__
(nbPlayers, nbArms)[source]¶ - nbPlayers: number of players to create (in self._players).
- nbArms: number of arms.
Examples:
>>> import random; random.seed(0); import numpy as np; np.random.seed(0) >>> s = CentralizedFixed(2, 3) >>> [ child.choice() for child in s.children ] [2, 1] >>> [ child.choice() for child in s.children ] [2, 1]
>>> import random; random.seed(0); import numpy as np; np.random.seed(0) >>> s = CentralizedFixed(4, 8) >>> [ child.choice() for child in s.children ] [7, 6, 1, 2] >>> [ child.choice() for child in s.children ] [7, 6, 1, 2]
>>> s = CentralizedFixed(10, 14)
- To get a list of usable players, use
s.children
. - Warning:
s._players
is for internal use
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nbPlayers
= None¶ Number of players
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nbArms
= None¶ Number of arms
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children
= None¶ List of children, fake algorithms
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__module__
= 'PoliciesMultiPlayers.CentralizedFixed'¶
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