Exemple #1
0
def setup():
    # Set up brain
    # #########################################################################
    brain = Brain(name='maxout-relu-zca-cifar10')

    brain.attach(DropoutLayer(keep_prob=0.8, name='dropout1'))

    brain.attach(
        ConvolutionLayer([8, 8], [1, 1, 1, 1],
                         'SAME',
                         init_para={
                             "name": "uniform",
                             "range": 0.005
                         },
                         wd={
                             "type": "l2",
                             "scale": 0.0005
                         },
                         out_channel_num=192,
                         name='conv1'))
    brain.attach(PoolingLayer([1, 4, 4, 1], [1, 2, 2, 1], 'SAME',
                              name='pool1'))
    brain.attach(ReLULayer(name='relu1'))
    brain.attach(DropoutLayer(keep_prob=0.5, name='dropout2'))

    brain.attach(
        ConvolutionLayer([8, 8], [1, 1, 1, 1],
                         'SAME',
                         init_para={
                             "name": "uniform",
                             "range": 0.005
                         },
                         wd={
                             "type": "l2",
                             "scale": 0.0005
                         },
                         out_channel_num=384,
                         name='conv2'))
    brain.attach(PoolingLayer([1, 4, 4, 1], [1, 2, 2, 1], 'SAME',
                              name='pool2'))
    brain.attach(ReLULayer(name='relu2'))
    brain.attach(DropoutLayer(keep_prob=0.5, name='dropout3'))

    brain.attach(
        ConvolutionLayer([5, 5], [1, 1, 1, 1],
                         'SAME',
                         init_para={
                             "name": "uniform",
                             "range": 0.005
                         },
                         wd={
                             "type": "l2",
                             "scale": 0.0005
                         },
                         out_channel_num=384,
                         name='conv3'))
    brain.attach(PoolingLayer([1, 2, 2, 1], [1, 2, 2, 1], 'SAME',
                              name='pool3'))
    brain.attach(ReLULayer(name='relu3'))
    brain.attach(DropoutLayer(keep_prob=0.5, name='dropout3'))

    brain.attach(
        InnerProductLayer(init_para={
            "name": "uniform",
            "range": 0.005
        },
                          wd={
                              "type": "l2",
                              "scale": 0.004
                          },
                          out_channel_num=500,
                          name='ip1'))
    brain.attach(ReLULayer(name='relu4'))
    brain.attach(DropoutLayer(keep_prob=0.5, name='dropout3'))

    brain.attach(
        InnerProductLayer(init_para={
            "name": "uniform",
            "range": 0.005
        },
                          wd={
                              "type": "l2",
                              "scale": 0
                          },
                          out_channel_num=10,
                          name='softmax_linear'))

    brain.attach(SoftmaxWithLossLayer(class_num=10, name='loss'))

    # Set up a sensor.
    # #########################################################################
    cifar_source = Cifar10FeedSource(
        name="CIFAR10",
        url='http://www.cs.toronto.edu/~kriz/cifar-10-binary.tar.gz',
        work_dir=AKID_DATA_PATH + '/cifar10',
        use_zca=True,
        num_train=50000,
        num_val=10000)

    sensor = FeedSensor(source_in=cifar_source, batch_size=128, name='data')

    # Summon a survivor.
    # #########################################################################
    survivor = kids.Kid(sensor,
                        brain,
                        kongfus.MomentumKongFu(base_lr=0.025,
                                               momentum=0.5,
                                               decay_rate=0.1,
                                               decay_epoch_num=50),
                        max_steps=200000)

    survivor.setup()
    return survivor
Exemple #2
0
from __future__ import absolute_import
from akid import AKID_DATA_PATH
from akid.core import kids, kongfus
from akid import Cifar10TFSource
from akid import IntegratedSensor
from akid import WhitenJoker
from akid import Brain
from akid.layers import (ConvolutionLayer, PoolingLayer, ReLULayer,
                         InnerProductLayer, SoftmaxWithLossLayer,
                         BatchNormalizationLayer, DropoutLayer)

# Set up brain
# #########################################################################
brain = Brain(moving_average_decay=0.99, name='maxout-relu-cifar10')

brain.attach(
    ConvolutionLayer([8, 8], [1, 1, 1, 1],
                     'SAME',
                     stddev=0.005,
                     weight_decay=0.0005,
                     out_channel_num=192,
                     name='conv1'))
brain.attach(PoolingLayer([1, 4, 4, 1], [1, 2, 2, 1], 'SAME', name='pool1'))
brain.attach(ReLULayer(name='relu1'))
brain.attach(DropoutLayer(keep_prob=0.8, name='dropout1'))

brain.attach(
    ConvolutionLayer([8, 8], [1, 1, 1, 1],
                     'SAME',
                     stddev=0.005,
                     weight_decay=0.0005,