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VII

Recurrent Neural Network

15 Recurrent neural network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

15.1 Recurrent Neural Network là gì? 199

15.1.1 Dữ liệu dạng sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

15.1.2 Phân loại bài toán RNN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

15.1.3 Ứng dụng bài toán RNN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

15.2 Mô hình bài toán RNN 201

15.2.1 Mô hình RNN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

15.2.2 Loss function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

15.2.3 Backpropagation Through Time (BPTT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203

15.3 Bài tập 204

16 Long short term memory (LSTM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205

16.1 Giới thiệu về LSTM 205

16.2 Mô hình LSTM 206

16.3 LSTM chống vanishing gradient 207

16.4 Bài tập 208

17 Ứng dụng thêm mô tả cho ảnh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

17.1 Ứng dụng 209

17.2 Dataset 210

17.3 Ứng dụng 211

17.4 Phân tích bài toán 211

17.5 Các bước chi tiết 212

17.5.1 Image embedding với Inception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

17.5.2 Text preprocessing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

17.5.3 Word embedding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

17.5.4 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

17.5.5 Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

17.6 Python code 214

Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225

Articles 225

online 225

Books 227

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