Embedding表示map f: X(高维) -> Y(低维),减小数据维度,方便计算+提高准确率. 参看Kaggle Learn:https://www.kaggle.com/learn/embeddings 官方DNN示例: user_id_input = keras.Input(shape=(1,), name='user_id') movie_id_input = keras.Input(shape=(1,), name='movie_id') user_embedded = kera…