在 javascript 中将训练数据保存在 json 文件中答案

【问题标题】：Saving training data in json file in javascript在 javascript 中将训练数据保存在 json 文件中
【发布时间】：2021-01-16 18:04:30
【问题描述】：

我正在使用 javascript 中的 Brain.js 库训练数据。

const brain = require('brain.js')
const network = new brain.NeuralNetwork()
network.train([
    {input: {Workst: 0.0000, Worken: 0.6666, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Fifth: 1} },
    {input: {Workst: 0.5555, Worken: 0.7777, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Fifth: 1} },
    {input: {Workst: 0.0000, Worken: 0.4444, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Fourth: 1} },
    {input: {Workst: 0.2222, Worken: 0.6666, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Fifth: 1}},
    {input: {Workst: 0.4444, Worken: 0.9444, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {First: 1} },
    {input: {Workst: 0.3333, Worken: 0.9444, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {First: 1} },
    {input: {Workst: 0.0555, Worken: 0.5000, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Fifth: 1} },
    {input: {Workst: 0.8333, Worken: 0.9444, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Third: 1} },
    {input: {Workst: 0.7777, Worken: 0.8333, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Second: 1} },
    {input: {Workst: 0.5555, Worken: 0.9444, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Second: 1} },
    {input: {Workst: 0.6111, Worken: 0.9444, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Third: 1} },
    {input: {Workst: 0.0005, Worken: 0.1666, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Third: 1} },
    {input: {Workst: 0.2222, Worken: 0.6111, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Fifth: 1} },
    {input: {Workst: 0.2222, Worken: 0.4444, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Fifth: 1 } },
    {input: {Workst: 0.5555, Worken: 0.6666, earlyMiss: 0, middleMiss: 0, lateMiss: 0}, output: {Fourth: 1} },
])
const result = network.run({Workst: 0.5675, Worken: 0.90, earlyMiss: 0, middleMiss: 0, lateMiss: 0});

//const result = brain.likely({Age: 0.5, Experience: 1, BFP: 1, Calories: 0}, network);
console.log(result);

我将不得不经常添加新数据点并再次训练数据，因此我想将训练数据保存在某个地方。我想将 Trianing 数据保存在 json 文件中，并使用类似的东西

network.train("data.json");

每次。可以这样做吗？

【问题讨论】：

标签： javascript json machine-learning artificial-intelligence brain.js

【解决方案1】：

这是一种适用于小规模的简单方法。假设您的数据位于 data.json 中，您可以这样做：

const fs = require("fs")
//...
network.train(JSON.parse(fs.readFileSync("data.json", "utf-8")));

延伸阅读：https://nodejs.dev/learn/reading-files-with-nodejs/

【讨论】：