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Pool interface, Dense layer · attackgithub/TensorFlow.NET@df1ae35 · GitHub

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  2. TensorFlow.NET

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Commit df1ae35

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Oceania2018
committed
Pool interface, Dense layer
1 parent 0fac8e9 commit df1ae35

18 files changed

Lines changed: 297 additions & 17 deletions

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‎src/TensorFlowNET.Core/APIs/tf.array.cs‎

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@@ -30,5 +30,13 @@ public static Tensor expand_dims(Tensor input, int axis = -1, string name = null
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/// <returns></returns>
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public static Tensor transpose(Tensor a, int[] perm = null, string name = "transpose", bool conjugate = false)
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=> array_ops.transpose(a, perm, name, conjugate);
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public static Tensor squeeze(Tensor input, int[] axis = null, string name = null, int squeeze_dims = -1)
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=> gen_array_ops.squeeze(input, axis, name);
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public static Tensor one_hot(Tensor indices, int depth)
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{
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throw new NotImplementedException("one_hot");
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}
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}
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}

‎src/TensorFlowNET.Core/APIs/tf.init.cs‎

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@@ -27,5 +27,13 @@ public static variable_scope variable_scope(VariableScope scope,
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default_name,
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values,
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auxiliary_name_scope);
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31+
public static IInitializer truncated_normal_initializer(float mean = 0.0f,
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float stddev = 1.0f,
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int? seed = null,
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TF_DataType dtype = TF_DataType.DtInvalid) => new TruncatedNormal(mean: mean,
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stddev: stddev,
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seed: seed,
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dtype: dtype);
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}
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}

‎src/TensorFlowNET.Core/APIs/tf.layers.cs‎

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@@ -126,6 +126,26 @@ public static Tensor max_pooling2d(Tensor inputs,
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return layer.apply(inputs);
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}
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public static Tensor dense(Tensor inputs,
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int units,
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IActivation activation = null,
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bool use_bias = true,
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IInitializer kernel_initializer = null,
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IInitializer bias_initializer = null,
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bool trainable = true,
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string name = null,
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bool? reuse = null)
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{
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if (bias_initializer == null)
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bias_initializer = tf.zeros_initializer;
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var layer = new Dense(units, activation,
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use_bias: use_bias,
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kernel_initializer: kernel_initializer);
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return layer.apply(inputs);
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}
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}
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}
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}

‎src/TensorFlowNET.Core/APIs/tf.math.cs‎

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Original file line numberDiff line numberDiff line change
@@ -6,31 +6,40 @@ namespace Tensorflow
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{
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public static partial class tf
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{
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public static Tensor add(Tensor a, Tensor b) => gen_math_ops.add(a, b);
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public static Tensor add(Tensor a, Tensor b)
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=> gen_math_ops.add(a, b);
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public static Tensor sub(Tensor a, Tensor b) => gen_math_ops.sub(a, b);
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public static Tensor sub(Tensor a, Tensor b)
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=> gen_math_ops.sub(a, b);
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13-
public static Tensor sqrt(Tensor a, string name = null) => gen_math_ops.sqrt(a, name);
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public static Tensor sqrt(Tensor a, string name = null)
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=> gen_math_ops.sqrt(a, name);
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public static Tensor subtract<T>(Tensor x, T[] y, string name = null) where T : struct
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=> gen_math_ops.sub(x, ops.convert_to_tensor(y, dtype: x.dtype.as_base_dtype(), name: "y"), name);
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public static Tensor multiply(Tensor x, Tensor y) => gen_math_ops.mul(x, y);
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public static Tensor multiply(Tensor x, Tensor y)
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=> gen_math_ops.mul(x, y);
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public static Tensor divide<T>(Tensor x, T[] y, string name = null) where T : struct
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=> x / ops.convert_to_tensor(y, dtype: x.dtype.as_base_dtype(), name: "y");
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public static Tensor pow<T1, T2>(T1 x, T2 y) => gen_math_ops.pow(x, y);
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public static Tensor pow<T1, T2>(T1 x, T2 y)
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=> gen_math_ops.pow(x, y);
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/// <summary>
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/// Computes the sum of elements across dimensions of a tensor.
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/// </summary>
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/// <param name="input"></param>
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/// <param name="axis"></param>
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/// <returns></returns>
31-
public static Tensor reduce_sum(Tensor input, int[] axis = null) => math_ops.reduce_sum(input);
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public static Tensor reduce_sum(Tensor input, int[] axis = null)
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=> math_ops.reduce_sum(input);
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3339
public static Tensor cast(Tensor x, TF_DataType dtype = TF_DataType.DtInvalid, string name = null)
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=> math_ops.cast(x, dtype, name);
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public static Tensor argmax(Tensor input, int axis = -1, string name = null, int? dimension = null, TF_DataType output_type = TF_DataType.TF_INT64)
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=> gen_math_ops.arg_max(input, axis, name: name, output_type: output_type);
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}
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}

‎src/TensorFlowNET.Core/APIs/tf.nn.cs‎

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Original file line numberDiff line numberDiff line change
@@ -42,7 +42,10 @@ public static Tensor[] fused_batch_norm(Tensor x,
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is_training: is_training,
4343
name: name);
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45-
public static Tensor max_pool() => gen_nn_ops.max_pool();
45+
public static IPoolFunction max_pool => new MaxPoolFunction();
46+
47+
public static Tensor[] top_k(Tensor input, int k = 1, bool sorted = true, string name = null)
48+
=> gen_nn_ops.top_kv2(input, k: k, sorted: sorted, name: name);
4649
}
4750
}
4851
}

‎src/TensorFlowNET.Core/APIs/tf.reshape.cs‎

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@@ -10,5 +10,8 @@ public static Tensor reshape(Tensor tensor,
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Tensor shape,
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string name = null) => gen_array_ops.reshape(tensor, shape, name);
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13+
public static Tensor reshape(Tensor tensor,
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int[] shape,
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string name = null) => gen_array_ops.reshape(tensor, shape, name);
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}
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}

‎src/TensorFlowNET.Core/Keras/Engine/InputSpec.cs‎

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Original file line numberDiff line numberDiff line change
@@ -10,16 +10,19 @@ namespace Tensorflow.Keras.Engine
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public class InputSpec
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{
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public int ndim;
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public int? min_ndim;
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Dictionary<int, int> axes;
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15-
public InputSpec(TF_DataType dtype = TF_DataType.DtInvalid,
16+
public InputSpec(TF_DataType dtype = TF_DataType.DtInvalid,
1617
int? ndim = null,
18+
int? min_ndim = null,
1719
Dictionary<int, int> axes = null)
1820
{
1921
this.ndim = ndim.Value;
2022
if (axes == null)
2123
axes = new Dictionary<int, int>();
2224
this.axes = axes;
25+
this.min_ndim = min_ndim;
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}
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}
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}

‎src/TensorFlowNET.Core/Keras/Engine/Layer.cs‎

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@@ -122,7 +122,7 @@ protected void _maybe_build(Tensor inputs)
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123123
protected virtual void build(TensorShape input_shape)
124124
{
125-
throw new NotImplementedException("Layer.build");
125+
built = true;
126126
}
127127

128128
protected virtual RefVariable add_weight(string name,

‎src/TensorFlowNET.Core/Keras/Layers/Dense.cs‎

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,33 @@
1+
using System;
2+
using System.Collections.Generic;
3+
using System.Text;
4+
using Tensorflow.Keras.Engine;
5+
using Tensorflow.Operations.Activation;
6+
7+
namespace Tensorflow.Keras.Layers
8+
{
9+
public class Dense : Tensorflow.Layers.Layer
10+
{
11+
protected int uints;
12+
protected IActivation activation;
13+
protected bool use_bias;
14+
protected IInitializer kernel_initializer;
15+
protected IInitializer bias_initializer;
16+
17+
public Dense(int units,
18+
IActivation activation,
19+
bool use_bias = true,
20+
bool trainable = false,
21+
IInitializer kernel_initializer = null,
22+
IInitializer bias_initializer = null) : base(trainable: trainable)
23+
{
24+
this.uints = units;
25+
this.activation = activation;
26+
this.use_bias = use_bias;
27+
this.kernel_initializer = kernel_initializer;
28+
this.bias_initializer = bias_initializer;
29+
this.supports_masking = true;
30+
this.input_spec = new InputSpec(min_ndim: 2);
31+
}
32+
}
33+
}

‎src/TensorFlowNET.Core/Keras/Layers/IPoolFunction.cs‎

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@@ -0,0 +1,16 @@
1+
using System;
2+
using System.Collections.Generic;
3+
using System.Text;
4+
5+
namespace Tensorflow
6+
{
7+
public interface IPoolFunction
8+
{
9+
Tensor Apply(Tensor value,
10+
int[] ksize,
11+
int[] strides,
12+
string padding,
13+
string data_format = "NHWC",
14+
string name = null);
15+
}
16+
}

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