武陵人走后怎样

“走在古北水镇的马路上，手里端着一杯冷萃，果然咖啡豆里过度烘培的焦糊味被冷萃完美过滤掉了。青石板路歪歪斜斜，导航带我走上一条一人宽的阶梯，两边的墙上路灯亮着，好像放学的孩子走在回家的路上，心满意足无忧无虑。”

Posted May 20, 2018

计算矩阵函数的导数（以 Word2vec 为例）

Posted Mar 8, 2018

理解张量点乘 numpy.tensordot

Posted Mar 7, 2018

Calculate gradients for a neural network with one hidden layer

I have always been struggling with calculating gradients in Back Propagation, especially when there are matrices involved. Here I will talk about how I solved the question below as an exercise. It is question 2(c) in Assignment 1 of CS224n, Winter 2017 from Stanford.

Posted Feb 9, 2018

《乡土中国》读书笔记

Reading From the Soil by Fei Xiaotong

Posted Oct 20, 2017

Using NASM on macOS and Windows

NASM is the only cross-platform assembler. And it works with Xcode!

Posted Dec 27, 2016

How we are humans

Posted Dec 17, 2016

好好准备了？

Posted Jul 22, 2016

如何看美区 iTunes 电影

Posted Jun 24, 2016

Posted Apr 20, 2016

Posted Feb 28, 2015