Ejemplo n.º 1
0
def resnet_basic(input, out_feature_map_count, bn_time_const):
    c1 = conv_bn_relu_layer(input, out_feature_map_count, [3, 3], [1, 1],
                            bn_time_const)
    c2 = conv_bn_layer(c1, out_feature_map_count, [3, 3], [1, 1],
                       bn_time_const)
    p = c2 + input
    return relu(p)
Ejemplo n.º 2
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def create_resnet_model(input, num_classes):
    bn_time_const = 4096

    c_map1 = 16

    feat_scale = 0.00390625

    input_norm = element_times(feat_scale, input)

    conv = conv_bn_relu_layer(input_norm, c_map1, [3, 3], [1, 1],
                              bn_time_const)
    r1_1 = resnet_basic_stack3(conv, c_map1, bn_time_const)

    c_map2 = 32

    r2_1 = resnet_basic_inc(r1_1, c_map2, [2, 2], bn_time_const)
    r2_2 = resnet_basic_stack2(r2_1, c_map2, bn_time_const)

    c_map3 = 64
    r3_1 = resnet_basic_inc(r2_2, c_map3, [2, 2], bn_time_const)
    r3_2 = resnet_basic_stack2(r3_1, c_map3, bn_time_const)

    # Global average pooling
    poolw = 8
    poolh = 8
    poolh_stride = 1
    poolv_stride = 1

    pool = pooling(r3_2, AVG_POOLING, (1, poolh, poolw),
                   (1, poolv_stride, poolh_stride))
    return linear_layer(pool, num_classes)
Ejemplo n.º 3
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def create_resnet_model(input, num_classes):
    bn_time_const = 4096

    c_map1 = 16
    
    feat_scale = 0.00390625

    input_norm = element_times(feat_scale, input)

    conv = conv_bn_relu_layer(input, c_map1, [3, 3], [1, 1], bn_time_const)
    r1_1 = resnet_basic_stack3(conv, c_map1, bn_time_const)

    c_map2 = 32

    r2_1 = resnet_basic_inc(r1_1, c_map2, [2, 2], bn_time_const)
    r2_2 = resnet_basic_stack2(r2_1, c_map2, bn_time_const)

    c_map3 = 64
    r3_1 = resnet_basic_inc(r2_2, c_map3, [2, 2], bn_time_const)
    r3_2 = resnet_basic_stack2(r3_1, c_map3, bn_time_const)

    # Global average pooling
    poolw = 8
    poolh = 8
    poolh_stride = 1
    poolv_stride = 1

    pool = pooling(r3_2, AVG_POOLING, (1, poolh, poolw), (1, poolv_stride, poolh_stride))
    return linear_layer(pool, num_classes)
Ejemplo n.º 4
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def resnet_classifer(input, num_classes):
    conv_w_scale = 7.07
    conv_b_value = 0

    fc1_w_scale = 0.4
    fc1_b_value = 0

    sc_value = 1
    bn_time_const = 4096

    kernel_width = 3
    kernel_height = 3

    conv1_w_scale = 0.26
    c_map1 = 16

    conv1 = conv_bn_relu_layer(input, c_map1, kernel_width, kernel_height, 1,
                               1, conv1_w_scale, conv_b_value, sc_value,
                               bn_time_const)
    rn1_1 = resnet_node2(conv1, c_map1, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)
    rn1_2 = resnet_node2(rn1_1, c_map1, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)
    rn1_3 = resnet_node2(rn1_2, c_map1, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)

    c_map2 = 32
    rn2_1_wProj = get_projection_map(c_map2, c_map1)
    rn2_1 = resnet_node2_inc(rn1_3, c_map2, kernel_width, kernel_height,
                             conv1_w_scale, conv_b_value, sc_value,
                             bn_time_const, rn2_1_wProj)
    rn2_2 = resnet_node2(rn2_1, c_map2, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)
    rn2_3 = resnet_node2(rn2_2, c_map2, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)

    c_map3 = 64
    rn3_1_wProj = get_projection_map(c_map3, c_map2)
    rn3_1 = resnet_node2_inc(rn2_3, c_map3, kernel_width, kernel_height,
                             conv1_w_scale, conv_b_value, sc_value,
                             bn_time_const, rn3_1_wProj)
    rn3_2 = resnet_node2(rn3_1, c_map3, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)
    rn3_3 = resnet_node2(rn3_2, c_map3, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)

    # Global average pooling
    poolw = 8
    poolh = 8
    poolh_stride = 1
    poolv_stride = 1

    pool = pooling(rn3_3, AVG_POOLING, (1, poolh, poolw),
                   (1, poolv_stride, poolh_stride))
    out_times_params = parameter(shape=(c_map3, 1, 1, num_classes),
                                 init=glorot_uniform())
    out_bias_params = parameter(shape=(num_classes), init=0)
    t = times(pool, out_times_params)
    return t + out_bias_params
Ejemplo n.º 5
0
def resnet_classifer(input, num_classes):
    conv_w_scale = 7.07
    conv_b_value = 0

    fc1_w_scale = 0.4
    fc1_b_value = 0

    sc_value = 1
    bn_time_const = 4096

    kernel_width = 3
    kernel_height = 3

    conv1_w_scale = 0.26
    c_map1 = 16

    conv1 = conv_bn_relu_layer(input, c_map1, kernel_width, kernel_height,
                               1, 1, conv1_w_scale, conv_b_value, sc_value, bn_time_const)
    rn1_1 = resnet_node2(conv1, c_map1, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)
    rn1_2 = resnet_node2(rn1_1, c_map1, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)
    rn1_3 = resnet_node2(rn1_2, c_map1, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)

    c_map2 = 32
    rn2_1_wProj = get_projection_map(c_map2, c_map1)
    rn2_1 = resnet_node2_inc(rn1_3, c_map2, kernel_width, kernel_height,
                             conv1_w_scale, conv_b_value, sc_value, bn_time_const, rn2_1_wProj)
    rn2_2 = resnet_node2(rn2_1, c_map2, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)
    rn2_3 = resnet_node2(rn2_2, c_map2, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)

    c_map3 = 64
    rn3_1_wProj = get_projection_map(c_map3, c_map2)
    rn3_1 = resnet_node2_inc(rn2_3, c_map3, kernel_width, kernel_height,
                             conv1_w_scale, conv_b_value, sc_value, bn_time_const, rn3_1_wProj)
    rn3_2 = resnet_node2(rn3_1, c_map3, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)
    rn3_3 = resnet_node2(rn3_2, c_map3, kernel_width, kernel_height,
                         conv1_w_scale, conv_b_value, sc_value, bn_time_const)

    # Global average pooling
    poolw = 8
    poolh = 8
    poolh_stride = 1
    poolv_stride = 1

    pool = pooling(rn3_3, AVG_POOLING, (1, poolh, poolw), (1, poolv_stride, poolh_stride))
    out_times_params = parameter(shape=(c_map3, 1, 1, num_classes), init=glorot_uniform())
    out_bias_params = parameter(shape=(num_classes), init=0)
    t = times(pool, out_times_params)
    return t + out_bias_params
Ejemplo n.º 6
0
def resnet_basic_inc(input, out_feature_map_count, strides, bn_time_const):
    c1 = conv_bn_relu_layer(input, out_feature_map_count, [3, 3], strides, bn_time_const)
    c2 = conv_bn_layer(c1, out_feature_map_count, [3, 3], [1, 1], bn_time_const)
    s  = conv_bn_layer(input, out_feature_map_count, [1, 1], strides, bn_time_const)
    p = c2 + s
    return relu(p)