def do_alter_resnet_mutation(self, position, indi):
"""
----out_channel of resnet
----amount in one resnet
"""
mutation_p_type = ''
mutation_p_count = 0
u_ = random.random()
if u_ < 0.5:
mutation_p_type = 'RESNET_OUT_CHANNEL'
channel_list = StatusUpdateTool().get_output_channel()
index_ = int(np.floor(np.random.random() * len(channel_list)))
if indi.units[position].out_channel != channel_list[index_]:
self.log.info(
'Unit at %d changes its output channel from %d to %d' %
(position, indi.units[position].out_channel,
channel_list[index_]))
indi.units[position].out_channel = channel_list[index_]
keep_out_channel = channel_list[index_]
for i in range(position + 1, len(indi.units)):
if indi.units[i].type == 1 or indi.units[i].type == 3:
self.log.info(
'Due to above, the unit at %d should change its input channel from %d to %d'
% (i, indi.units[i].in_channel, keep_out_channel))
indi.units[i].in_channel = keep_out_channel
if indi.units[i].type == 1:
break
elif indi.units[i].type == 3:
estimated_out_channel = indi.units[
i].k * indi.units[i].amount + indi.units[
i].in_channel
if estimated_out_channel > indi.units[
i].out_channel:
break
else:
self.log.info(
'Due to the above mutation, unit at %d changes its output channel from %d to %d'
% (i, indi.units[i].out_channel,
estimated_out_channel))
indi.units[
i].out_channel = estimated_out_channel
keep_out_channel = estimated_out_channel
mutation_p_count = 1
indi.reset_acc()
else:
mutation_p_type = 'RESNET_AMOUNT'
min_resnet_unit, max_resnet_unit = StatusUpdateTool.get_resnet_unit_length_limit(
)
amount = np.random.randint(min_resnet_unit, max_resnet_unit)
if amount != indi.units[position].amount:
self.log.info('Unit at %d changes its amount from %d to %d' %
(position, indi.units[position].amount, amount))
indi.units[position].amount = amount
mutation_p_count = 1
indi.reset_acc()
return mutation_p_type, mutation_p_count
def do_modify_conv_mutation(self, indi):
self.log.info('Do the CHANNEL mutation for indi:%s'%(indi.id))
conv_index_list = []
for i, unit in enumerate(indi.units):
if unit.type == 1:
conv_index_list.append(i)
if len(conv_index_list) == 0:
self.log.warn('No CONV unit exist in current individual, no mutation occurs')
else:
selected_index = int(np.floor(np.random.rand()*len(conv_index_list)))
self.log.info('Mutation position %d'%(conv_index_list[selected_index]))
channel_list = StatusUpdateTool().get_output_channel()
index_ = int(np.floor(np.random.random()*len(channel_list)))
if indi.units[conv_index_list[selected_index]].in_channel != channel_list[index_]:
indi.reset_acc()
if selected_index > 0:
self.log.info('Unit at %d changes its input channel from %d to %d'%(conv_index_list[selected_index], indi.units[conv_index_list[selected_index]].in_channel, channel_list[index_]))
indi.units[conv_index_list[selected_index]].in_channel = channel_list[index_]
self.log.info('Due to above, the unit at %d should change its output channel from %d to %d'%(conv_index_list[selected_index-1], indi.units[conv_index_list[selected_index-1]].out_channel, channel_list[index_]))
indi.units[conv_index_list[selected_index-1]].out_channel = channel_list[index_]
else:
self.log.warn('Mutation position is 0, the input channel should not be changed')
else:
self.log.info('Unit at %d changes its input channel from %d to %d'%(conv_index_list[selected_index], indi.units[conv_index_list[selected_index]].in_channel, channel_list[index_]))
index_ = int(np.floor(np.random.random()*len(channel_list)))
if indi.units[conv_index_list[selected_index]].out_channel != channel_list[index_]:
indi.reset_acc()
self.log.info('Unit at %d changes its out channel from %d to %d'%(conv_index_list[selected_index], indi.units[conv_index_list[selected_index]].out_channel, channel_list[index_]))
indi.units[conv_index_list[selected_index]].out_channel = channel_list[index_]
if selected_index < len(conv_index_list)-1:
self.log.info('Due to above, the unit at %d should change its input channel from %d to %d'%(conv_index_list[selected_index+1], indi.units[conv_index_list[selected_index+1]].in_channel, channel_list[index_]))
indi.units[conv_index_list[selected_index+1]].in_channel = channel_list[index_]
else:
self.log.info('Unit at %d is the last unit in the individual, therefore no need to change the input channel of the next unit')
else:
self.log.info('Unit at %d changes its out channel from %d to %d'%(conv_index_list[selected_index], indi.units[conv_index_list[selected_index]].out_channel, channel_list[index_]))