在tensorflow.js中加载经过训练的模型时出现节点获取错误

Question

在训练了我的tensorflow模型后，我将其转换为tensorflow.js所需的json格式。然而，当我尝试使用javascript加载此模型时，我遇到了node-fetch错误。

这是我的代码：

const tf = require("./tf.min.js");
(async function () {
const modelURL = "model_js/model.json";
const model = await tf.loadLayersModel(modelURL);
model.summary();
})();

完整的错误日志：

(node:35092) UnhandledPromiseRejectionWarning: Error: Cannot find module 'node-fetch'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:582:15)
at Function.Module._load (internal/modules/cjs/loader.js:508:25)
at Module.require (internal/modules/cjs/loader.js:637:17)
at require (internal/modules/cjs/helpers.js:22:18)
at pw (/Users/suraj/Desktop/fake-news/tf.min.js:17:225676)
at t.e.fetch (/Users/suraj/Desktop/fake-news/tf.min.js:17:225911)
at t.<anonymous> (/Users/suraj/Desktop/fake-news/tf.min.js:17:255546)
at u (/Users/suraj/Desktop/fake-news/tf.min.js:17:104674)
at Generator._invoke (/Users/suraj/Desktop/fake-news/tf.min.js:17:104427)
at Generator.forEach.t.(anonymous function) [as next] (/Users/suraj/Desktop/fake-news/tf.min.js:17:105031)
(node:35092) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 3)
(node:35092) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Answer 1

模块未正确导入。您很可能正在导入一个旨在在浏览器中运行的缩小脚本。这些文档介绍了如何开始使用tensorflow.js

安装软件包：

npm install @tensorflow/tfjs

使用

import * as tf from '@tensorflow/tfjs';