機器學(xué)習(xí)實戰(zhàn)營：從理論到實戰(zhàn)的探索之旅

目錄
機器學(xué)習(xí)入門············································································1
機器學(xué)習(xí)簡介 ···········································································1
1.1.1 什么是機器學(xué)習(xí)································································1
1.1.2 機器學(xué)習(xí)的前景································································2
機器學(xué)習(xí)的主要類型 ··································································3
1.2.1 監(jiān)督學(xué)習(xí)·········································································4
1.2.2 無監(jiān)督學(xué)習(xí)······································································5
1.2.3 半監(jiān)督學(xué)習(xí)······································································7
1.2.4 強化學(xué)習(xí)·········································································8
1.2.5 監(jiān)督學(xué)習(xí)案例································································.10
選擇正確的算法·····································································.12
機器學(xué)習(xí)工具和環(huán)境·································································14
Python 介紹···········································································.14
2.1.1 Python 的安裝 ·······························································.14
2.1.2 Python 基礎(chǔ)語法 ····························································.19
2.1.3 Python 其他特性 ····························································.24
2.1.4 Python 簡單實戰(zhàn)案例(猜字游戲) ····································.31
2.1.5 Python 高級實戰(zhàn)案例(網(wǎng)絡(luò)爬蟲) ····································.35
數(shù)據(jù)科學(xué)庫···········································································.38
2.2.1 NumPy ········································································.38
2.2.2 Pandas ·········································································.45
2.2.3 數(shù)據(jù)科學(xué)庫案例(電商網(wǎng)站) ··········································.54
機器學(xué)習(xí)庫···········································································.55
2.3.1 Scikit-Learn···································································.55
2.3.2 TensorFlow ···································································.60
2.3.3 Keras···········································································.64
2.3.4 機器學(xué)習(xí)庫案例(預(yù)測糖尿病) ·······································.67
數(shù)據(jù)預(yù)處理·············································································70
數(shù)據(jù)導(dǎo)入 ··············································································.70
數(shù)據(jù)清洗 ··············································································.71
特征工程 ··············································································.73
3.3.1 特征選擇······································································.73
3.3.2 特征轉(zhuǎn)換······································································.75
3.3.3 特征縮放······································································.77
數(shù)據(jù)分割 ··············································································.78
3.4.1 訓(xùn)練集·········································································.78
3.4.2 測試集·········································································.79
3.4.3 驗證集·········································································.80
案例分析:銀行客戶·························································.80
機器學(xué)習(xí)模型的構(gòu)建與評估························································84
監(jiān)督學(xué)習(xí)實戰(zhàn)········································································.84
4.1.1 線性回歸······································································.84
4.1.2 邏輯回歸······································································.86
4.1.3 決策樹·········································································.88
4.1.4 隨機森林······································································.90
無監(jiān)督學(xué)習(xí)實戰(zhàn)·····································································.91
4.2.1 K-means ·······································································.92
4.2.2 主成分分析···································································.93
深度學(xué)習(xí)實戰(zhàn)········································································.95
4.3.1 神經(jīng)網(wǎng)絡(luò)······································································.95
4.3.2 卷積神經(jīng)網(wǎng)絡(luò)··············