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28 lines
1.0 KiB
Python
28 lines
1.0 KiB
Python
"""
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Task is to return every second character from the input tape.
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http://arxiv.org/abs/1511.07275
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"""
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import random
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import numpy as np
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from gym.envs.algorithmic import algorithmic_env
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from gym.envs.algorithmic.algorithmic_env import ha
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class DuplicatedInputEnv(algorithmic_env.AlgorithmicEnv):
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def __init__(self, duplication=2, base=5):
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self.duplication = duplication
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algorithmic_env.AlgorithmicEnv.__init__(self,
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inp_dim=1,
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base=base,
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chars=True)
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def set_data(self):
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self.content = {}
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self.target = {}
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copies = int(self.total_len / self.duplication)
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for i in range(copies):
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val = random.randrange(self.base)
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self.target[i] = val
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for d in range(self.duplication):
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self.content[ha(np.array([i * self.duplication + d]))] = val
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self.total_reward = self.total_len / self.duplication
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