SDM 2016

SDM 2016 @ Florida,新朋友初见,老朋友叙旧。

AAAI 2016

时隔4年再次和老板一起开会。

记一则面试

有趣的面试应当被记录。

围棋,围棋

围棋,是小时候的印迹。也许被覆盖,但是擦去风尘,它就静静的在那里,即便斑驳。

Signed Number Representation and Bitwise Operation

It has been 8 years since the first and last time I learned signed number representation. Almost forgot everything. Might be a good time to pick it up!

Strong Convexity and Their Four Equivalent Conditions

Strong convexity, and their three equivalent conditions.

Lipschitz Gradients and Their Three Equivalent Conditions

Lipschitz continuity, Lipschitz gradients, and their three equivalent conditions.

First-Order Optimality Condition

What is "First-Order Optimality Condition"

最近的生活

最近的生活基本是这样的。

Proof of "For convex optimization problems, local minima are global minima."

I would like to show how to prove "For convex optimization problems, local minima are global minima."

我是一个坚强的人,但我不会翻转二叉树

我是一个坚强的人,但我不会翻转二叉树。

Leetcode Mode Starts

准备开始找工作了,从刷题先开始吧。sigh。。。