{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# MNIST 手寫數字辨識資料集介紹 & 多層感知器模型(MLP)\n", "\n", "![MLP](http://cntk.ai/jup/cntk103c_MNIST_MLP.png)\n", "\n", "圖片出處:[CNTK_103C_MNIST_MultiLayerPerceptron](https://cntk.ai/pythondocs/CNTK_103C_MNIST_MultiLayerPerceptron.html)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP1. 匯入 Keras 及相關模組 \n", "\n", "首先匯入 Keras 及相關模組: " ] }, { "cell_type": "code", "execution_count": 1, "metadata": {}, "outputs": [ { "name": "stderr", "output_type": "stream", "text": [ "Using TensorFlow backend.\n" ] } ], "source": [ "import numpy as np\n", "import pandas as pd\n", "from keras.utils import np_utils # 用來後續將 label 標籤轉為 one-hot-encoding\n", "\n", "np.random.seed(10)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP2. 下載 mnist 資料\n", "\n", "下載 Mnist 資料 \n", "我們將建立以下 Keras 程式, 下載並讀取 mnist 資料. \n", "\n", "Mnist 資料的下載路徑在 ~/.keras/datasets/mnist.npz (npz is a simple zip archive, which contains numpy files.) " ] }, { "cell_type": "code", "execution_count": 2, "metadata": { "collapsed": true }, "outputs": [], "source": [ "from keras.datasets import mnist" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP3. 讀取與查看 mnist 資料" ] }, { "cell_type": "code", "execution_count": 3, "metadata": {}, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "\t[Info] train data= 60,000\n", "\t[Info] test data= 10,000\n" ] } ], "source": [ "(X_train_image, y_train_label), (X_test_image, y_test_label) = mnist.load_data()\n", "\n", "print(\"\\t[Info] train data={:7,}\".format(len(X_train_image))) \n", "print(\"\\t[Info] test data={:7,}\".format(len(X_test_image))) " ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "由上可以知道 training data 共有 60,000 筆; testing data 共有 10,000 筆。" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## 查看訓練資料\n", "\n", "接著我們來看載入資料的長相與格式." ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP1. 訓練資料是由 images 與 labels 所組成" ] }, { "cell_type": "code", "execution_count": 4, "metadata": {}, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "\t[Info] Shape of train data=(60000, 28, 28)\n", "\t[Info] Shape of train label=(60000,)\n" ] } ], "source": [ "print(\"\\t[Info] Shape of train data=%s\" % (str(X_train_image.shape)))\n", "print(\"\\t[Info] Shape of train label=%s\" % (str(y_train_label.shape)))" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "訓練資料是由 images 與 labels 所組成共有 60,000 筆, 每一筆代表某個數字的影像為 28x28 pixels." ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP2. 定應 plot_image 函數顯示數字影像" ] }, { "cell_type": "code", "execution_count": 5, "metadata": { "collapsed": true }, "outputs": [], "source": [ "import matplotlib.pyplot as plt\n", "def plot_image(image):\n", " fig = plt.gcf()\n", " fig.set_size_inches(2, 2)\n", " plt.imshow(image, cmap='binary') # cmap='binary' 參數設定以黑白灰階顯示\n", " plt.show()" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP3. 執行 plot_image 函數查看第 0 筆數字影像與 label 資料 \n", "\n", "以下程式呼叫 plot_image 函數, 傳入 X_train_image[0], 也就是順練資料集的第 0 筆資料, 顯示結果可以看到這是一個數字 5 的圖形: " ] }, { "cell_type": "code", "execution_count": 6, "metadata": {}, "outputs": [ { "data": { "image/png": "iVBORw0KGgoAAAANSUhEUgAAAJIAAACPCAYAAAARM4LLAAAABHNCSVQICAgIfAhkiAAAAAlwSFlz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\njM9gOIVbmEoAAAAASUVORK5CYII=\n", "text/plain": [ "" ] }, "metadata": {}, "output_type": "display_data" } ], "source": [ "plot_image(X_train_image[0])" ] }, { "cell_type": "code", "execution_count": 7, "metadata": {}, "outputs": [ { "data": { "text/plain": [ "5" ] }, "execution_count": 7, "metadata": {}, "output_type": "execute_result" } ], "source": [ "y_train_label[0]" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## 查看多筆訓練資料 images 與 labels\n", "\n", "接下來我們將建立 plot_images_labels_predict 函數, 可以顯示多筆資料的影像與 label. " ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP1. 建立 plot_images_labels_predict() 函數\n", "\n", "因為後續我們希望能很方便查看數字圖形, 真實的數字與預測結果, 所以我們建立了以下函數:" ] }, { "cell_type": "code", "execution_count": 8, "metadata": { "collapsed": true }, "outputs": [], "source": [ "def plot_images_labels_predict(images, labels, prediction, idx, num=10): \n", " fig = plt.gcf() \n", " fig.set_size_inches(12, 14) \n", " if num > 25: num = 25 \n", " for i in range(0, num): \n", " ax=plt.subplot(5,5, 1+i) \n", " ax.imshow(images[idx], cmap='binary') \n", " title = \"l=\" + str(labels[idx]) \n", " if len(prediction) > 0: \n", " title = \"l={},p={}\".format(str(labels[idx]), str(prediction[idx])) \n", " else: \n", " title = \"l={}\".format(str(labels[idx])) \n", " ax.set_title(title, fontsize=10) \n", " ax.set_xticks([]); ax.set_yticks([]) \n", " idx+=1 \n", " plt.show()" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP2. 查看訓練資料的前 10 筆資料" ] }, { "cell_type": "code", "execution_count": 9, "metadata": {}, "outputs": [ { "data": { "image/png": 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"text/plain": [ "" ] }, "metadata": {}, "output_type": "display_data" } ], "source": [ "plot_images_labels_predict(X_train_image, y_train_label, [], 0, 10)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## 多層感知器模型資料前處理\n", "\n", "接下來我們建立 多層感知器模型 (MLP), 我們必須先將 images 與 labels 的內容進行前處理, 才能餵進去 Keras 預期的資料結構。" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP1. features (數字影像的特徵值) 資料前處理\n", "\n", "首先將 image 以 reshape 轉換為二維 ndarray 並進行 normalization (Feature scaling): " ] }, { "cell_type": "code", "execution_count": 10, "metadata": {}, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "\t[Info] xTrain: (60000, 784)\n", "\t[Info] xTest: (10000, 784)\n" ] } ], "source": [ "x_Train = X_train_image.reshape(60000, 28*28).astype('float32')\n", "x_Test = X_test_image.reshape(10000, 28*28).astype('float32')\n", "print(\"\\t[Info] xTrain: %s\" % (str(x_Train.shape)))\n", "print(\"\\t[Info] xTest: %s\" % (str(x_Test.shape)))\n", " \n", "# Normalization\n", "x_Train_norm = x_Train/255\n", "x_Test_norm = x_Test/255" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP2. labels (影像數字真實的值) 資料前處理\n", "\n", "label 標籤欄位原本是 0-9 數字, 而為了配合 Keras 的資料格式, 我們必須進行 One-hot-encoding 將之轉換為 10 個 0 或 1 的組合, 例如數字 7 經過 One-hot encoding 轉換後是 0000001000, 正好對應到輸出層的 10 個神經元. 下面簡單測試過程:" ] }, { "cell_type": "code", "execution_count": 11, "metadata": {}, "outputs": [ { "data": { "text/plain": [ "array([[ 0., 0., 0., 0., 0., 1., 0., 0., 0., 0.]])" ] }, "execution_count": 11, "metadata": {}, "output_type": "execute_result" } ], "source": [ "y_TrainOneHot = np_utils.to_categorical(y_train_label) # 將 training 的 label 進行 one-hot encoding\n", "y_TestOneHot = np_utils.to_categorical(y_test_label) # 將測試的 labels 進行 one-hot encoding\n", "\n", "y_train_label[0] # 檢視 training labels 第一個 label 的值\n", "y_TrainOneHot[:1] # 檢視第一個 label 在 one-hot encoding 後的結果, 會在第六個位置上為 1, 其他位置上為 0" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## 建立模型\n", "\n", "我們將建立以下多層感知器 Multilayer Perceptron 模型, 輸入層 (x) 共有 28x28=784 個神經元, Hidden layers (h) 共有 256 層; 輸出層 (y) 共有 10 個 神經元:" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "![mlp](https://3.bp.blogspot.com/-TpTfcbPRWWY/WVW-EUCKVLI/AAAAAAAAWuE/sn9sX6qMc38UePENvSmmgLH3bA7za-3ogCLcBGAs/s1600/3946_3.PNG)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "對應代碼:" ] }, { "cell_type": "code", "execution_count": 12, "metadata": {}, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "\t[Info] Model summary:\n", "_________________________________________________________________\n", "Layer (type) Output Shape Param # \n", "=================================================================\n", "dense_1 (Dense) (None, 256) 200960 \n", "_________________________________________________________________\n", "dense_2 (Dense) (None, 10) 2570 \n", "=================================================================\n", "Total params: 203,530\n", "Trainable params: 203,530\n", "Non-trainable params: 0\n", "_________________________________________________________________\n", "\n" ] } ], "source": [ "from keras.models import Sequential \n", "from keras.layers import Dense \n", " \n", "model = Sequential() # Build Linear Model \n", " \n", "model.add(Dense(units=256, input_dim=784, kernel_initializer='normal', activation='relu')) # Add Input/hidden layer \n", "model.add(Dense(units=10, kernel_initializer='normal', activation='softmax')) # Add Hidden/output layer \n", "print(\"\\t[Info] Model summary:\") \n", "model.summary() \n", "print(\"\")" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "Summary 的相關說明:" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "![mlp](https://1.bp.blogspot.com/-XYUDaErijCI/WVW-IliFkOI/AAAAAAAAWuI/g4zOWWWMfpIwIEYWLq2zd0qVJHlRanTHACLcBGAs/s1600/3946_4.PNG)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## 進行訓練\n", "\n", "當我們建立深度學習模型後, 就可以使用 Backpropagation 進行訓練。" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP1. 定義訓練方式\n", "\n", "在訓練模型之前, 我們必須先使用 compile 方法, 對訓練模型進行設定, 代碼如下:" ] }, { "cell_type": "code", "execution_count": 13, "metadata": { "collapsed": true }, "outputs": [], "source": [ "model.compile(loss='categorical_crossentropy', optimizer='adam', metrics=['accuracy'])" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "參數說明如下:\n", "* **loss** : 設定 loss function, 在深度學習通常使用 cross_entropy (Cross entropy) 交叉摘順練效果較好.\n", "* **optimizer** : 設定訓練時的優化方法, 在深度學習使用 adam 可以讓訓練更快收斂, 並提高準確率.\n", "* **metrics** : 設定評估模型的方式是 accuracy (準確率)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP2. 開始訓練\n", "執行訓練的程式碼如下:" ] }, { "cell_type": "code", "execution_count": 14, "metadata": {}, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "Train on 48000 samples, validate on 12000 samples\n", "Epoch 1/10\n", "3s - loss: 0.4385 - acc: 0.8829 - val_loss: 0.2181 - val_acc: 0.9408\n", "Epoch 2/10\n", "3s - loss: 0.1907 - acc: 0.9455 - val_loss: 0.1554 - val_acc: 0.9559\n", "Epoch 3/10\n", "3s - loss: 0.1354 - acc: 0.9618 - val_loss: 0.1259 - val_acc: 0.9648\n", "Epoch 4/10\n", "3s - loss: 0.1027 - acc: 0.9704 - val_loss: 0.1121 - val_acc: 0.9678\n", "Epoch 5/10\n", "3s - loss: 0.0810 - acc: 0.9774 - val_loss: 0.0982 - val_acc: 0.9716\n", "Epoch 6/10\n", "3s - loss: 0.0659 - acc: 0.9818 - val_loss: 0.0931 - val_acc: 0.9723\n", "Epoch 7/10\n", "3s - loss: 0.0544 - acc: 0.9851 - val_loss: 0.0912 - val_acc: 0.9739\n", "Epoch 8/10\n", "3s - loss: 0.0459 - acc: 0.9876 - val_loss: 0.0822 - val_acc: 0.9760\n", "Epoch 9/10\n", "3s - loss: 0.0381 - acc: 0.9902 - val_loss: 0.0820 - val_acc: 0.9761\n", "Epoch 10/10\n", "3s - loss: 0.0317 - acc: 0.9918 - val_loss: 0.0809 - val_acc: 0.9760\n" ] } ], "source": [ "train_history = model.fit(x=x_Train_norm, \n", " y=y_TrainOneHot, \n", " validation_split=0.2, \n", " epochs=10, \n", " batch_size=200, \n", " verbose=2)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "上面訓練過程會儲存於 train_history 變數中, 參數說明如下: \n", "\n", "* **x = x_Train_norm** : features 數字的影像特徵值 (60,000 x 784 的陣列)\n", "* **y = y_Train_OneHot** : label 數字的 One-hot encoding 陣列 (60,000 x 10 的陣列)\n", "* **validation_split = 0.2** : 設定訓練資料與 cross validation 的資料比率. 也就是說會有 0.8 * 60,000 = 48,000 作為訓練資料; 0.2 * 60,000 = 12,000 作為驗證資料.\n", "* **epochs** = 10 : 執行 10 次的訓練週期.\n", "* **batch_size = 200** : 每一批次的訓練筆數為 200\n", "* **verbose = 2** : 顯示訓練過程. 共執行 10 次 epoch (訓練週期), 每批 200 筆, 也就是每次會有 240 round (48,000 / 200 = 240). 每一次的 epoch 會計算 accuracy 並記錄在 train_history 中." ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP3. 建立 show_train_history 顯示訓練過程\n", "\n", "之前訓練步驟會將每一個訓練週期的 accuracy 與 loss 記錄在 train_history 變數. 我們可以使用下面程式碼讀取 train_history 以圖表顯示訓練過程:" ] }, { "cell_type": "code", "execution_count": 15, "metadata": { "collapsed": true }, "outputs": [], "source": [ "import matplotlib.pyplot as plt \n", "def show_train_history(train_history, train, validation): \n", " plt.plot(train_history.history[train]) \n", " plt.plot(train_history.history[validation]) \n", " plt.title('Train History') \n", " plt.ylabel(train) \n", " plt.xlabel('Epoch') \n", " plt.legend(['train', 'validation'], loc='upper left') \n", " plt.show()" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "執行結果如下:" ] }, { "cell_type": "code", "execution_count": 16, "metadata": {}, "outputs": [ { "data": { "image/png": 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PzU++x659Tfz4CzO5eMrwiOxXRKQjBUa0ucObD8Oi78CwKXD9szAkMqPqvr9t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\nXFJBYXYqp+alx7oUEZFeQ4H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"text/plain": [ "" ] }, "metadata": {}, "output_type": "display_data" } ], "source": [ "show_train_history(train_history, 'acc', 'val_acc')" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "如果 \"acc 訓練的準確率\" 一直提升, 但是 \"val_acc 的準確率\" 卻一直沒有增加, 就有可能是 Overfitting 的現象 (更多說明請參考 Bias, Variance, and Overfitting). 在完成所有 (epoch) 訓練週期後, 在後面還會使用測試資料來評估模型準確率, 這是另外一組獨立的資料, 所以計算準確率會更客觀. 接著我們來看 loss 誤差的執行結果: " ] }, { "cell_type": "code", "execution_count": 17, "metadata": {}, "outputs": [ { "data": { "image/png": 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4kDsefZe6JvfuP26MCW8WGENt4Vfg2t/5BvgtG9QAP4CEmEjuvX4+/7J8Oi9s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\nannsna4tEm9SDPmZTnh0tky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"text/plain": [ "" ] }, "metadata": {}, "output_type": "display_data" } ], "source": [ "show_train_history(train_history, 'loss', 'val_loss')" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "總共執行 10 個 Epoch 訓練週期, 可以發現: \n", "* 不論訓練與驗證, 誤差越來越低.\n", "* 在 Epoch 訓練後期, \"loss 訓練的誤差\" 比 \"val_loss 驗證的誤差\" 小." ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## 以測試資料評估模型準確率與預測 \n", "\n", "我們已經完成訓練模型, 現在要使用 test 測試資料來評估模型準確率。" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP1. 評估模型準確率\n", "\n", "使用下面代碼評估模型準確率:" ] }, { "cell_type": "code", "execution_count": 18, "metadata": {}, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ " 9760/10000 [============================>.] - ETA: 0s\n", "\t[Info] Accuracy of testing data = 97.5%\n" ] } ], "source": [ "scores = model.evaluate(x_Test_norm, y_TestOneHot) \n", "print() \n", "print(\"\\t[Info] Accuracy of testing data = {:2.1f}%\".format(scores[1]*100.0))" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "### STEP2. 進行預測\n", "前面我們建立模型並於訓練後達成可以接受的 97% 準確率, 接著我們將使用此模型進行預測。" ] }, { "cell_type": "code", "execution_count": 19, "metadata": {}, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "\t[Info] Making prediction to x_Test_norm\n", " 9792/10000 [============================>.] - ETA: 0s\n", "\t[Info] Show 10 prediction result (From 240):\n", "[5 9 8 7 2 3 0 2 4 2]\n", "\n" ] }, { "data": { "image/png": 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PLiLSp08flVu3bq3y9u3bAz3n7NmzVf7oo4+ijvn2229VHjt2rMplypQJ9JyI75prrlF5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\nE//9738P/TmQfm6f/WOPPab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"text/plain": [ "" ] }, "metadata": {}, "output_type": "display_data" } ], "source": [ "print(\"\\t[Info] Making prediction to x_Test_norm\") \n", "prediction = model.predict_classes(x_Test_norm) # Making prediction and save result to prediction \n", "print() \n", "print(\"\\t[Info] Show 10 prediction result (From 240):\") \n", "print(\"%s\\n\" % (prediction[240:250])) \n", " \n", "plot_images_labels_predict(X_test_image, y_test_label, prediction, idx=240)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "上面可以發現有個預測結果為 6, 但實際 label 為 4. " ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## 總結 (Conclusion)\n", "\n", "在這篇文章中有一些個人學習到的一些有趣的重點:\n", "\n", "* Mnist的手寫資料集雖然很簡單, 但對很多不熟悉把圖像處理的人來說, Mnist絕對是一個合適用來做練習與講解的好資料集\n", "* 需要了解網絡的結構與不同網絡層輸入輸出的張量的結構才能夠清楚地構建一個對的模型" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "參考:\n", "* [程式扎記 - MNIST 手寫數字辨識資料集介紹](http://puremonkey2010.blogspot.tw/2017/07/toolkit-keras-mnist-cnn.html)\n", "* [林大貴 - TensorFlow+Keras深度學習人工智慧實務應用](http://tensorflowkeras.blogspot.com)" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": true }, "outputs": [], "source": [] } ], "metadata": { "kernelspec": { "display_name": "Python 3", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.5.3" } }, "nbformat": 4, "nbformat_minor": 2 }