Course Code: funaiandml
Duration: 28 hours
Prerequisites:
  • 具有 Python 程式設計經驗
  • 對統計學和數學概念有基本的瞭解

觀眾

  • 開發人員
  • 數據科學家
Overview:

機器學習是人工智慧的一個分支,其中計算機具有無需明確程式設計即可學習的能力。

深度學習是機器學習的一個子領域,它使用基於學習數據表示和結構(如神經網路)的方法。

Python 是一種高級程式設計語言,以其清晰的語法和代碼可讀性而聞名。

在這個以講師為主導的現場培訓中,參與者將學習如何使用Python實施電信深度學習模型,同時逐步創建深度學習信用風險模型。

在培訓結束時,參與者將能夠:

  • 瞭解深度學習的基本概念。
  • 瞭解深度學習在電信中的應用和用途。
  • 使用 Python、Keras 和 TensorFlow 創建電信深度學習模型。
  • 使用 Python 構建自己的深度學習客戶流失預測模型。

課程形式

  • 互動講座和討論。
  • 大量的練習和練習。
  • 在現場實驗室環境中實際實施。

課程定製選項

  • 如需申請此課程的定製培訓,請聯繫我們進行安排。
Course Outline:

應用材料簡介 Machine Learning

  • 統計學習與機器學習
  • 反覆運算和評估
  • 偏差-方差權衡
  • 監督學習與無監督學習
  • 使用 Machine Learning 解決的問題
  • 訓練驗證測試 – ML 工作流,以避免過度擬合
  • Machine Learning的工作流程
  • 機器學習演算法
  • 為問題選擇適當的演算法

演演算法評估

  • 評估數值預測
    • 精度測量:ME、MSE、RMSE、MAPE
    • 參數和預測穩定性
  • 評估分類演算法
    • 準確性及其問題
    • 混淆矩陣
    • 班級不平衡問題
  • 可視化模型性能
    • 利潤曲線
    • ROC曲線
    • 提升曲線
  • 選型
  • 模型調優 – 網格搜索策略

建模的數據準備

  • 數據導入和存儲
  • 了解數據 – 基本探索
  • 使用 pandas 庫進行數據操作
  • 數據轉換 – 數據整理
  • 探索性分析
  • 缺失觀測值 – 檢測和解決方案
  • 異常值 – 檢測和策略
  • 標準化、歸一化、二值化
  • 定性數據重新編碼

用於異常值檢測的機器學習演算法

  • 監督演算法
    • KNN系列
    • 集成梯度提升
    • SVM公司
  • 無監督演算法
    • 基於距離
    • 基於密度的方法
    • 概率方法
    • 基於模型的方法

瞭解 Deep Learning

  • Deep Learning的基本概念概述
  • 區分 Machine Learning 和 Deep Learning
  • Deep Learning 的應用概述

Neural Networks概述

  • 什麼是 Neural Networks
  • Neural Networks 與回歸模型
  • 瞭解 Mathematical 基礎和學習機制
  • 構建人工神經網路
  • 了解神經節點和連接
  • 處理神經元、層以及輸入和輸出數據
  • 瞭解單層感知器
  • 監督學習和無監督學習之間的區別
  • 學習前饋和反饋 Neural Networks
  • 瞭解前向傳播和反向傳播

使用 Keras 構建簡單的 Deep Learning 模型

  • 創建 Keras 模型
  • 瞭解您的數據
  • 指定 Deep Learning 型號
  • 編譯模型
  • 擬合您的模型
  • 使用分類數據
  • 使用分類模型
  • 使用模型 

使用 TensorFlow 執行 Deep Learning

  • 準備數據
    • 下載數據
    • 準備訓練數據
    • 準備測試數據
    • 縮放輸入
    • 使用佔位元和變數
  • 指定網路架構
  • 使用成本函數
  • 使用優化器
  • 使用初始值設定項
  • 擬合神經網路
  • 構建圖表
    • 推理
    • 損失
    • 訓練
  • 訓練模型
    • 圖表
    • 會議
    • 火車環路
  • 評估模型
    • 構建評估圖
    • 使用 Eval Output 進行評估
  • 大規模訓練模型
  • 使用 TensorBoard 視覺化和評估模型

Deep Learning在異常檢測中的應用

  • 自動編碼器
    • 編碼器 - 解碼器架構
    • 重建損失
  • 變分自動編碼器
    • 變分推理
  • 生成對抗網路
    • 生成器 – 鑒別器架構
    • 使用 GAN 的 AN 方法

集成框架

  • 結合不同方法的結果
  • Bootstrap 聚合
  • 平均異常值分數
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