4.4 Output Interface

當FV結束後的output `result.json` 內容為一個json obejct，此object包含了2個json object，分別是metadata和results。其中metadata為FV的基本資訊，而results為FV的驗證結果圖表。

metadata目前僅一項基本資訊即datasetSize，代表驗證用的資料集其大小。
而results則可以附帶多種以下圖表

tables：一維表格

 * title: string
* labels: string array
* values: number array

bars：長條圖

* title: string
* labels: string array
* values: number array
* y-axis: string

heatmaps：熱力圖

* title: string
* x-labels: string array
* y-labels: string array
* values: number 2d array
* x-axis: string
* y-axis: string

plots：折線圖

* title: string
* labels: string array
* x-values: number 2d array
* y-values: number 2d array
* x-axis: string
* y-axis: string

images：圖片

* title: string
* filename: string

範本如下

  {
    metadata:{
      datasetSize: 1000
    },
    results:{
      tables: [
        {
          title: "Overall Table",
          labels: ["FV accuracy"],
          values: [0.8182]
        },
      ],
      bars: [
        {
          title: "Class 1 Bar Chart",
          labels: ["F1 class 1 precsion"],
          values: [0.8564],
          y-axis: "performance",
        },
      ],
      heatmaps: [
        {
          title: "FV Confusion Matrix",
          x-labels: ["FV class0","FV class1"],
          y-labels: ["FV class0","FV class1"],
          values: [[10,5],[2,16]],
          x-axis: "Predition",
          y-axis: "Ground truth",
        },
      ],
      plots: [
        {
          title: "FV Confusion Matrix",
          labels: ["ROC curve"]
          x-values: [[0,0.2,0,4,0,8]],
          y-values: [[0,0.25,0.43,0.83]],
          x-axis: "True Positive rate",
          y-axis: "Faise Positive rate",
        }
      ],
      images: [
        {
          title: "FV image"
          filename: "fv-image.png"
        }
      ]
    }
  }