def __init__(
self, model=None, replay=None, actor_updater=None, critic_updater=None
):
self.model = model or default_model()
self.replay = replay or replays.Segment()
self.actor_updater = actor_updater or \
updaters.StochasticPolicyGradient()
self.critic_updater = critic_updater or updaters.VRegression()
def default_replay():
return replays.Segment(size=4096,
batch_iterations=80,
batch_size=None,
discount_factor=0.98,
trace_decay=0.97)