Shiou-Ling Rene Wang

some minor fix on mapquest and add environment variable to retrieve key

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I modified get_tweet_json.py: 1. to allow geocoding as false 2. to ensure the url sent to mapquest api is encoded. 3. use list for location dictionary for tweets with duplicate...

關於 Advanced deep-learning best practices #7 的 hyperas

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在 KDNuggets 上看到一篇關於 hyperas 的教學文（包括 colab），做分享。 https://www.kdnuggets.com/2018/12/keras-hyperparameter-tuning-google-colab-hyperas.html 另外在八月則有一篇為 autokeras 的教學文，若有人使用過這兩個 packages，可以分享一下心得。

為何要對圖形中 0-255 的灰階像素值做 normalization (將灰階值數值範圍縮減到 [0 - 1])?

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9/22 第二次讀書會（Chapter 2）現場提問 在 ["A First Look at a Neural Network"](https://github.com/fchollet/deep-learning-with-python-notebooks/blob/master/2.1-a-first-look-at-a-neural-network.ipynb) note book 中，為何要將所有的灰階像素除以 255？(code example 如下)？ ``` train_images = train_images.reshape((60000, 28 * 28)) train_images = train_images.astype('float32') / 255 test_images...