tensorflow-解決3個問題
阿新 • • 發佈:2018-02-24
n) 準確率 markdown 調整 body flow poc div ray
問題一:對特征歸一化
Min-Max Scaling:
X′=a+(X?Xmin)(b?a)/(Xmax?Xmin)
# Problem 1 - Implement Min-Max scaling for grayscale image data def normalize_grayscale(image_data): """ Normalize the image data with Min-Max scaling to a range of [0.1, 0.9] :param image_data: The image data to be normalized :return: Normalized image data """ # TODO: Implement Min-Max scaling for grayscale image data a = 0.1 b = 0.9 grayscal_min=0 grayscal_max=255 return a + (((image_data-grayscal_min)*(b-a))/(grayscal_max-grayscal_min))
問題二:用 TensorFlow 創建特征、目標、權重和偏置項 tensor。
問題三:調整學習率,epochs 和 batch size 來獲取最高準確率
tensorflow-解決3個問題