coach v0.8.0

exploration_policies/bootstrapped.py

@@ -0,0 +1,37 @@
+#
+# Copyright (c) 2017 Intel Corporation 
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from exploration_policies.e_greedy import *
+
+
+class Bootstrapped(EGreedy):
+    def __init__(self, tuning_parameters):
+        """
+        :param tuning_parameters: A Preset class instance with all the running parameters
+        :type tuning_parameters: Preset
+        """
+        EGreedy.__init__(self, tuning_parameters)
+        self.num_heads = tuning_parameters.exploration.architecture_num_q_heads
+        self.selected_head = 0
+
+    def select_head(self):
+        self.selected_head = np.random.randint(self.num_heads)
+
+    def get_action(self, action_values):
+        return EGreedy.get_action(self, action_values[self.selected_head])
+
+    def get_control_param(self):
+        return self.selected_head