Golang: AI イノベーションを推進する力

package main

import (
    "fmt"
    "github.com/sjwhitworth/golearn/feature"
    "github.com/sjwhitworth/golearn/linear_models"
    "github.com/sjwhitworth/golearn/evaluation"
    "github.com/sjwhitworth/golearn/svm"
)

func main() {
    // 加载数据
    rawData, err := feature.ParseCSVToInstances("data.csv", true)
    if err != nil {
        fmt.Println("数据加载失败：", err)
        return
    }
    // 数据切分
    trainData, testData := evaluation.GenerateTrainTestSplit(rawData, 0.7)

    // 构建分类器
    classifier := linear_models.NewLogisticRegression()
    // 模型训练
    classifier.Fit(trainData)

    // 模型预测
    predictions := classifier.Predict(testData)

    // 结果评估
    confusionMatrix, err := evaluation.GetConfusionMatrix(testData, predictions)
    if err != nil {
        fmt.Println("评估失败：", err)
        return
    }
    accuracy := evaluation.GetAccuracy(confusionMatrix)
    fmt.Printf("模型准确率：%.2f%%
", accuracy*100)
}

package main

import (
    "fmt"
    "gorgonia.org/gorgonia"
    "gorgonia.org/tensor"
)

func main() {
    g := gorgonia.NewGraph()
    w := gorgonia.NewMatrix(g, tensor.Float64, gorgonia.WithShape(3, 3), gorgonia.WithInit(gorgonia.Gaussian(0, 1)))
    x := gorgonia.NewMatrix(g, tensor.Float64, gorgonia.WithShape(3, 1), gorgonia.WithInit(gorgonia.Gaussian(0, 1)))

    // 定义模型
    model := gorgonia.Must(gorgonia.Mul(w, x))

    // 定义目标
    target := gorgonia.NewScalar(g, tensor.Float64)

    // 定义损失函数
    loss := gorgonia.Must(gorgonia.Square(g).Apply(model, target))

    // 执行自动微分
    grads, err := gorgonia.Gradient(loss, w)
    if err != nil {
        fmt.Println("梯度计算失败：", err)
        return
    }

    // 创建虚拟机并运行训练
    vm := gorgonia.NewTapeMachine(g, gorgonia.BindDualValues(w, x), gorgonia.BindDualValues(loss))
    defer vm.Close()
    err = vm.RunAll()
    if err != nil {
        fmt.Println("训练失败：", err)
        return
    }

    // 输出结果
    result, err := w.Value()
    if err != nil {
        fmt.Println("获取参数失败：", err)
        return
    }
    fmt.Println("训练结果：", result)
}