Tensorflow.js tf.TensorBuffer 类
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。
这个 TensorBuffer 类可变对象类似于tf.Tensor ,它允许用户在转换为不可变 tf.Tensor 之前在指定位置设置值。为了创建张量缓冲区,使用 tf.buffer()。
这个TensorBuffer 类具有三个内置函数,如下所示:
- tf.TensorBuffer 类 .set()函数
- tf.TensorBuffer 类 .get()函数
- tf.TensorBuffer 类 .toTensor()函数
tf.TensorBuffer 类 .set()函数用于在指定位置的缓冲区中设置给定值。
示例 1:
Javascript
// Importing the tensorflow.js library
import * as tf from "@tensorflow/tfjs"
// Creating a buffer of 2*2 dimensions
const buffer = tf.buffer([2, 2]);
// Setting values at particular indices.
buffer.set(5, 0, 0);
buffer.set(10, 1, 0);
// Converting the above buffer
// back to a tensor value to print
buffer.toTensor().print();
Javascript
// Importing the tensorflow.js library
import * as tf from "@tensorflow/tfjs"
// Creating a buffer of 2*2 dimensions
const buffer = tf.buffer([2, 2]);
// Setting values at particular indices.
buffer.set(5, 0, 0);
buffer.set(10, 1, 0);
// Getting the values for the
// specified indices with the
// help of .get() function
console.log(buffer.get(0, 0));
console.log(buffer.get(1, 0));
Javascript
// Importing the tensorflow.js library
import * as tf from "@tensorflow/tfjs"
// Creating a buffer of 2*2 dimensions
const buffer = tf.buffer([2, 2]);
// Setting values at particular indices.
buffer.set(5, 0, 0);
buffer.set(10, 1, 0);
// Converting the above buffer
// back to a tensor value to print
// with the help of .toTensor() function
buffer.toTensor().print();
输出:
Tensor
[[5 , 0],
[10, 0]]
tf.TensorBuffer 类 .get()函数用于返回给定位置的指定缓冲区中的值。
示例 2:
Javascript
// Importing the tensorflow.js library
import * as tf from "@tensorflow/tfjs"
// Creating a buffer of 2*2 dimensions
const buffer = tf.buffer([2, 2]);
// Setting values at particular indices.
buffer.set(5, 0, 0);
buffer.set(10, 1, 0);
// Getting the values for the
// specified indices with the
// help of .get() function
console.log(buffer.get(0, 0));
console.log(buffer.get(1, 0));
输出: tf.TensorBuffer 类 .toTensor()函数用于从指定的缓冲区及其值创建不可变的张量对象。
5
10
示例 3:
Javascript
// Importing the tensorflow.js library
import * as tf from "@tensorflow/tfjs"
// Creating a buffer of 2*2 dimensions
const buffer = tf.buffer([2, 2]);
// Setting values at particular indices.
buffer.set(5, 0, 0);
buffer.set(10, 1, 0);
// Converting the above buffer
// back to a tensor value to print
// with the help of .toTensor() function
buffer.toTensor().print();
输出:
Tensor
[[5 , 0],
参考: https://js.tensorflow.org/api/latest/#class:TensorBuffer