# 專題演講: 大 AI 時代的起點 ###### tags: `20200704` `openning` ## Neural Network Neuron => Perceptron Forward: Inference/Backward 模擬人腦的神經連結方式 x1 X w11 + x2 X w21 + x3 X w31 + b1 -> Activate function ## Deep Neural Network(Deep Learning) 有一個大神用了CNN,贏得視覺設計競賽第一名 所以就紅起來了 ## Why DL is hotter than ML In more compute, DL's accuracy is more than ML. ## Reasons Behind the Boom 如果大家有學過大一微積分 >DNN: Gradient Descent and Backpropagation >CNN: Convolution and NN-ized 計算複雜度下降VS計算力提升=>人工智慧的黃金交叉 Big Data: ImageNet and ILSVRC Software Tools/Communities: github and kaggle ## Growing Use of Deep Learning at Google 越來越多服務使用ai技術 ### 時間到