我肯定是在brain.js关于培训的说明里误解了什么
我玩过这个repl.it代码
const brain = require('brain.js');
const network = new brain.NeuralNetwork();
network.train([
{ input: { doseA: 0 }, output: { indicatorA: 0 } },
{ input: { doseA: 0.1 }, output: { indicatorA: 0.02 } },
{ input: { doseA: 0.2 }, output: { indicatorA: 0.04 } },
{ input: { doseA: 0.3 }, output: { indicatorA: 0.06 } },
{ input: { doseA: 0.4 }, output: { indicatorA: 0.08 } },
{ input: { doseA: 0.5 }, output: { indicatorA: 0.10 } },
{ input: { doseA: 0.6 }, output: { indicatorA: 0.12 } },
{ input: { doseA: 0.7 }, output: { indicatorA: 0.14 } },
]);
const result = network.run({ doseA: 0.35 });
console.log(result);
>> { indicatorA: 0.12165333330631256 }
=> undefined希望结果是{ indicatorA: 0.07 }
我做错了什么?
发布于 2018-06-17 07:04:16
增加迭代次数和降低错误阈值对我有效:
const brain = require('brain.js');
const network = new brain.NeuralNetwork();
network.train([
{ input: { doseA: 0 }, output: { indicatorA: 0 } },
{ input: { doseA: 0.1 }, output: { indicatorA: 0.02 } },
{ input: { doseA: 0.2 }, output: { indicatorA: 0.04 } },
{ input: { doseA: 0.3 }, output: { indicatorA: 0.06 } },
{ input: { doseA: 0.4 }, output: { indicatorA: 0.08 } },
{ input: { doseA: 0.5 }, output: { indicatorA: 0.10 } },
{ input: { doseA: 0.6 }, output: { indicatorA: 0.12 } },
{ input: { doseA: 0.7 }, output: { indicatorA: 0.14 } },
], {
log: true,
iterations: 1e6,
errorThresh: 0.00001
});
const result = network.run({ doseA: 0.35 });
console.log(result);
// 结果:{ indicatorA: 0.0693388432264328 }
https://stackoverflow.com/questions/50894323
复制相似问题