機(jī)器學(xué)習(xí)實(shí)戰(zhàn)營(yíng)：從理論到實(shí)戰(zhàn)的探索之旅

目錄
機(jī)器學(xué)習(xí)入門(mén)············································································1
機(jī)器學(xué)習(xí)簡(jiǎn)介 ···········································································1
1.1.1 什么是機(jī)器學(xué)習(xí)································································1
1.1.2 機(jī)器學(xué)習(xí)的前景································································2
機(jī)器學(xué)習(xí)的主要類(lèi)型 ··································································3
1.2.1 監(jiān)督學(xué)習(xí)·········································································4
1.2.2 無(wú)監(jiān)督學(xué)習(xí)······································································5
1.2.3 半監(jiān)督學(xué)習(xí)······································································7
1.2.4 強(qiáng)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(jī)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(yǔ)法 ····························································.19
2.1.3 Python 其他特性 ····························································.24
2.1.4 Python 簡(jiǎn)單實(shí)戰(zhàn)案例(猜字游戲) ····································.31
2.1.5 Python 高級(jí)實(shí)戰(zhàn)案例(網(wǎng)絡(luò)爬蟲(chóng)) ····································.35
數(shù)據(jù)科學(xué)庫(kù)···········································································.38
2.2.1 NumPy ········································································.38
2.2.2 Pandas ·········································································.45
2.2.3 數(shù)據(jù)科學(xué)庫(kù)案例(電商網(wǎng)站) ··········································.54
機(jī)器學(xué)習(xí)庫(kù)···········································································.55
2.3.1 Scikit-Learn···································································.55
2.3.2 TensorFlow ···································································.60
2.3.3 Keras···········································································.64
2.3.4 機(jī)器學(xué)習(xí)庫(kù)案例(預(yù)測(cè)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(cè)試集·········································································.79
3.4.3 驗(yàn)證集·········································································.80
案例分析:銀行客戶(hù)·························································.80
機(jī)器學(xué)習(xí)模型的構(gòu)建與評(píng)估························································84
監(jiān)督學(xué)習(xí)實(shí)戰(zhàn)········································································.84
4.1.1 線(xiàn)性回歸······································································.84
4.1.2 邏輯回歸······································································.86
4.1.3 決策樹(shù)·········································································.88
4.1.4 隨機(jī)森林······································································.90
無(wú)監(jiān)督學(xué)習(xí)實(shí)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(shí)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)··············