Tensorflow.js tf.initializers.leCunUniform()函数
Tensorflow.js是谷歌开发的一个开源库,用于在浏览器或节点环境中运行机器学习模型和深度学习神经网络。它还可以帮助开发人员用 JavaScript 语言开发 ML 模型,并且可以直接在浏览器或 Node.js 中使用 ML。
tf.initializers.leCunUniform()函数从区间 [-cap, cap] 的均匀分布中获取样本,其中 cap = sqrt(3 / fanIn)。请注意, fanIn是张量权重中的输入数量。
句法:
tf.initializers.leCunUniform(arguments).
参数:
- arguments:它是一个包含种子(一个数字)的对象,它是随机数生成器的种子/数字。
返回值:它返回tf.initializers.Initializer。
示例 1:
Javascript
// Importing the tensorflow.Js library
import * as tf from "@tensorflow/tfjs"
// Initialising the .initializers.leCunUniform() function
console.log(tf.initializers.leCunUniform(4));
// Printing individual values from the gain
console.log("\nIndividual Values\n");
console.log(tf.initializers.leCunUniform(4).scale);
console.log(tf.initializers.leCunUniform(4).mode);
console.log(tf.initializers.leCunUniform(4).distribution);
Javascript
// Importing the tensorflow.Js library
import * as tf from "@tensorflow/tfjs"
// Defining the input value
let inputValue = tf.input({ shape: [4] });
// Initializing tf.initializers.leCunUniform()
// function
let funcValue = tf.initializers.leCunUniform(6)
// Creating dense layer 1
let dense_layer_1 = tf.layers.dense({
units: 3,
activation: 'relu',
kernelInitialize: funcValue
});
// Creating dense layer 2
let dense_layer_2 = tf.layers.dense({
units: 6,
activation: 'softmax'
});
// Output Value
let outputValue = dense_layer_2.apply(
dense_layer_1.apply(inputValue)
);
// Creation the model
let model = tf.model({
inputs: inputValue,
outputs: outputValue
});
// Predicting the output
let finalOutput = model.predict(tf.ones([2, 4]));
finalOutput.print();
输出:
{
"scale": 1,
"mode": "fanIn",
"distribution": "uniform"
}
Individual Values
1
fanIn
uniform
示例 2:
Javascript
// Importing the tensorflow.Js library
import * as tf from "@tensorflow/tfjs"
// Defining the input value
let inputValue = tf.input({ shape: [4] });
// Initializing tf.initializers.leCunUniform()
// function
let funcValue = tf.initializers.leCunUniform(6)
// Creating dense layer 1
let dense_layer_1 = tf.layers.dense({
units: 3,
activation: 'relu',
kernelInitialize: funcValue
});
// Creating dense layer 2
let dense_layer_2 = tf.layers.dense({
units: 6,
activation: 'softmax'
});
// Output Value
let outputValue = dense_layer_2.apply(
dense_layer_1.apply(inputValue)
);
// Creation the model
let model = tf.model({
inputs: inputValue,
outputs: outputValue
});
// Predicting the output
let finalOutput = model.predict(tf.ones([2, 4]));
finalOutput.print();
输出:
Tensor
[[0.1853671, 0.1406064, 0.1505066, 0.1183221, 0.2430924, 0.1621054],
[0.1853671, 0.1406064, 0.1505066, 0.1183221, 0.2430924, 0.1621054]]
参考: https://js.tensorflow.org/api/latest/#initializers.leCunUniform