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Maybe we can be put into a system,and be calculated to be a number。

This number describes what we shall do in next step。

So is there a rational number for a human?

In mathematics, irrational number means non-cycle limitless number.

Since a human is always of limit(his life is limited), he is always a rational number if it can be encoded a number.

(These are 2 different concepts, a human’s limited life and his encoded number’s length are different)

 

方向、偏差

均可用数字来描述

slope

R^2,这个参数的提出赞点在于是相对的,绝对的不好比较

    明明是个绝对参数,却能找到一个相对参数来衡量

    如何能提出一个指标,是必修的能力之一

预定义偏差范围,就能区分各种方向。

 

很显然,需要对它的技术做修改。

所谓深度学习技术,其实是一种自下而上的技术,通过输入大量的数据,结合神经网络,总结出规律(总结出1个函数?函数拟合?)。

对于1个天才来说,它本身不需要学习。

深度学习技术,不过是把天才的行为函数化(自动化?系统化?)罢了,或者说解密天才的行为。

有意思的是,alphago团队本身并无1个围棋的职业选手,只有黄士杰是个业余n段兼围棋开发者;而且当5翻棋第4局出现bug之后,alphago的创造者回答提问也很有意思,“他们也不晓得alphago是如何学习的?”

alphago创造者虽然创造了alphago,但alphago的执行能力强于创造者,而且alphago的具体执行过程甚至创造者都未必能100%掌控。

 

tim cook & FBI

http://www.apple.com/customer-letter/

 

老美的科技公司和FBI差不多是一个量级的?

FBI居然会提出这么不合理的要求? 它是打算给apple经费嘛?做一个全新的OS,那不是小事,那是需要人和银子的。

估计与人银子无关,苹果不差这些。一定是别的什么原因。保护用户隐私,应该不是主要原因。

科技公司(APPLE)和美国政府(FBI)完全不是一个圈子的,说不到一起。

这是美式民主的一个体现?美国从来就不是政府说了算的世界。

 

trap of bash

trap is a command which is rarely used for most linux shell developers. But sometimes it is very useful, especially when u have some background jobs running and would like to cleanup such jobs if the scripts exits abnormally.

http://mywiki.wooledge.org/SignalTrap

This page has an excellent explanation for trap command.

Besides it gives the difference between what “kill –SIGINT pid” does and CTRL+C, it is

  • the first applys to a process pid
  • the second applys to the forground job, all processes which belong to that job will receive SIGINT

Another tip is of using “& wait” make bash script asynchrous, so that  trap Command List can be executed immediately instead of only being run after the script’s  foreground process is complete.

 

ref

继国际象棋被ai攻克后,围棋也将被ai击败,不过这次ai代表是google,而不是ibm

alphago 2016年3月对决李世乭,在此之前它已经5:0完成欧洲冠军职业2段樊麾

alphago的杀手是deep mind,由policy network和value network组成,不断做supervised learning(研究专业棋手棋局,向专业棋手学习)和reinforecemnt learning(和自己下棋,同时学习),这是和深蓝完全不同的一个特点,深蓝行棋的规则是事先定义好的,而alphago部分是从棋谱中学习来的

有意思的是,这两个network是训练(喂棋谱)出来的,这是怎么做到的?

ref:

http://www.deepmind.com/alpha-go.html

https://googleblog.blogspot.com/2016/01/alphago-machine-learning-game-go.html

http://www.nature.com/nature/journal/v529/n7587/full/nature16961.html

 

model 2

AsPsPbAb

model1

1008px-Binomial_Distribution.svg

remove 2345.com

This is an ugly spyware when u install something from untrusted source.

One key sympton is that when u open default browser, a default url is opened  http://www.hao601.com/?tn5_9_30=27711

Even if u set default home URL to about:blank, that URL is still opened.

In fact, it is implemented by appending that URL to ur browser’s quick start URL. So right click ur browser icon, property, remove “http://www.hao601.com/?tn5_9_30=27711” from target.