papering - 博客园

2016年12月6日

摘要： 1 w-WAITING--- 2 3 4 7 8 阅读全文

posted @ 2016-12-06 18:29 papering 阅读(140) 评论(0) 推荐(0) 编辑

摘要： https://en.wikipedia.org/wiki/Least_squares 動差估計法( MM, The Method of Moment ) 最小平方法( LSQ, The Method of Least Square ) 最大概似估計法( ML, The Method of Maxi 阅读全文

posted @ 2016-12-06 15:32 papering 阅读(302) 评论(0) 推荐(0) 编辑

Thwarting Buffer Overflow Attacks Stack Randomization

摘要： Computer Systems A Programmer's Perspective Second Edition address-space layout randomization 阅读全文

posted @ 2016-12-06 13:18 papering 阅读(152) 评论(0) 推荐(0) 编辑

buffer overflow

摘要： Computer Systems A Programmer's Perspective Second Edition We have seen that C does not perform any bounds checking for array references, and that loc 阅读全文

posted @ 2016-12-06 13:07 papering 阅读(191) 评论(0) 推荐(0) 编辑

simplify the design of the hardware forming the interface between the processor and thememory system

摘要： Computer Systems A Programmer's Perspective Second Edition Many computer systems place restrictions on the allowable addresses for the primitive data 阅读全文

posted @ 2016-12-06 12:34 papering 阅读(148) 评论(0) 推荐(0) 编辑

Operand forms

摘要： Operand forms Computer Systems A Programmer's Perspective Second Edition 阅读全文

posted @ 2016-12-06 08:57 papering 阅读(120) 评论(0) 推荐(0) 编辑

2016年12月5日

256 terabytes random-access memory

摘要： Computer Systems A Programmer's Perspective Second Edition As we will discuss, the extension of IA32 to 64 bits, termed x86-64, was origi- nally devel 阅读全文

posted @ 2016-12-05 13:04 papering 阅读(191) 评论(0) 推荐(0) 编辑

2016年12月3日

Two's complement

摘要： https://en.wikipedia.org/wiki/Two's_complement The two's-complement system has the advantage that the fundamental arithmetic operations of addition, s 阅读全文

posted @ 2016-12-03 22:30 papering 阅读(190) 评论(0) 推荐(0) 编辑

word size

摘要： Computer Systems A Programmer's Perspective Second Edition Running throughout the system is a collection of electrical conduits called buses that carr 阅读全文

posted @ 2016-12-03 01:03 papering 阅读(288) 评论(0) 推荐(0) 编辑

2016年12月2日

21335592 ROWS

摘要： CREATE TABLE w_big SELECT * FROM ( SEELCT * FROM w_tab UNION ALL SELECT * FROM w_tab_copy_modify ) AS w_tmp 阅读全文

posted @ 2016-12-02 20:13 papering 阅读(133) 评论(0) 推荐(0) 编辑

2016年12月1日

blockchain

摘要： blockchain 阅读全文

posted @ 2016-12-01 18:05 papering 阅读(138) 评论(0) 推荐(0) 编辑

4 bytes (32 bits) or 8 bytes (64 bits)

摘要： Computer Systems A Programmer's Perspective Second Edition BusesRunning throughout the system is a collection of electrical conduits called busesthat 阅读全文

posted @ 2016-12-01 13:35 papering 阅读(356) 评论(0) 推荐(0) 编辑

buffer overflow vulnerabilitie

摘要： Computer Systems A Programmer's Perspective Second Edition Avoiding security holes.For many years,buffer overflow vulnerabilitieshave accounted for th 阅读全文

posted @ 2016-12-01 00:58 papering 阅读(262) 评论(0) 推荐(0) 编辑

2016年11月30日

wdate-year-month-week-gategory-amount-coin

摘要： 2016-12-02 19:46:39 the whole table DISTINCT field SUM(field) COUNT(field) 888983 rows OK 阅读全文

posted @ 2016-11-30 19:48 papering 阅读(173) 评论(0) 推荐(0) 编辑

heapsort

摘要： Introduction to Algorithms Third Edition The (binary) heap data structure is an array object that we can view as anearly complete binary tree (see Sec 阅读全文

posted @ 2016-11-30 13:25 papering 阅读(189) 评论(0) 推荐(0) 编辑

从一个表复制信息到另一个表

摘要： SQL INSERT INTO SELECT 语句 | 菜鸟教程 https://www.runoob.com/sql/sql-insert-into-select.html 我们可以从一个表中复制所有的列插入到另一个已存在的表中： INSERT INTO table2SELECT * FROM t 阅读全文

posted @ 2016-11-30 12:32 papering 阅读(222) 评论(0) 推荐(0) 编辑

2016年11月29日

Euler's totient function

摘要： https://en.wikipedia.org/wiki/Euler's_totient_function counts the positive integers up to a given integer n that are relatively prime to n. if two num 阅读全文

posted @ 2016-11-29 23:38 papering 阅读(380) 评论(0) 推荐(0) 编辑

逻辑bug 测试用例

摘要： 1、 179. 最大数 - 力扣（LeetCode） https://leetcode-cn.com/problems/largest-number/ 给定一组非负整数 nums，重新排列它们每个数字的顺序（每个数字不可拆分）使之组成一个最大的整数。注意：输出结果可能非常大，所以你需要返回一个字符阅读全文

posted @ 2016-11-29 22:45 papering 阅读(152) 评论(0) 推荐(0) 编辑

Law of total probability

摘要： https://en.wikipedia.org/wiki/Law_of_total_probability the total probability of an outcome which can be realized via several distinct events - hence t 阅读全文

posted @ 2016-11-29 15:21 papering 阅读(300) 评论(0) 推荐(0) 编辑

127 2016 int

摘要： http://dev.mysql.com/doc/refman/5.7/en/integer-types.html 阅读全文

posted @ 2016-11-29 14:43 papering 阅读(137) 评论(0) 推荐(0) 编辑

How to Write a Spelling Corrector

摘要： http://norvig.com/spell-correct.html Feb 2007to August 2016 How to Write a Spelling Corrector One week in 2007, two friends (Dean and Bill) independen 阅读全文

posted @ 2016-11-29 13:32 papering 阅读(421) 评论(0) 推荐(0) 编辑

prior knowledge

摘要： https://en.wikipedia.org/wiki/Bayes'_theorem For example, if cancer is related to age, then, using Bayes’ theorem, a person’s age (prior knowledge) ca 阅读全文

posted @ 2016-11-29 12:25 papering 阅读(334) 评论(0) 推荐(0) 编辑

2016年11月28日

拼写纠正 Artificial Intelligence: A Modern Approach

摘要： Artificial Intelligence: A Modern Approach http://mindhacks.cn/2008/09/21/the-magical-bayesian-method/ 阅读全文

posted @ 2016-11-28 13:37 papering 阅读(165) 评论(0) 推荐(0) 编辑

Subset sum problem

摘要： https://en.wikipedia.org/wiki/Subset_sum_problem In computer science, the subset sum problem is an important problem in complexity theory and cryptogr 阅读全文

posted @ 2016-11-28 08:54 papering 阅读(243) 评论(0) 推荐(0) 编辑

2016年11月27日

routing decisions based on paths, network policies, or rule-sets configured by a network administrator

摘要： https://en.wikipedia.org/wiki/Border_Gateway_Protocol Border Gateway Protocol (BGP) is a standardized exterior gateway protocol designed to exchange r 阅读全文

posted @ 2016-11-27 10:18 papering 阅读(177) 评论(0) 推荐(0) 编辑

communicate with other processes, regardless of where they are running

摘要： Advanced Programming in the UNIX Environment Third Edition Advanced Programming in the UNIX Environment Third Edition In the previous chapter, we look 阅读全文

posted @ 2016-11-27 01:07 papering 阅读(207) 评论(0) 推荐(0) 编辑

2016年11月26日

谓词

摘要：汉语的体词包括名词,数词,量词；汉语的谓词包括动词和形容词。阅读全文

posted @ 2016-11-26 20:25 papering 阅读(348) 评论(0) 推荐(0) 编辑

1763 An Essay towards solving a Problem in the Doctrine of Chances

摘要： https://en.wikipedia.org/wiki/An_Essay_towards_solving_a_Problem_in_the_Doctrine_of_Chances 阅读全文

posted @ 2016-11-26 10:51 papering 阅读(240) 评论(0) 推荐(0) 编辑

2016年11月25日

enhance convenience rather than contribute to the fundamental power of the language

摘要： Computer Science An Overview _J. Glenn Brookshear _11th Edition Universal Programming Languages In Chapter 6 we studied a variety of features found in 阅读全文

posted @ 2016-11-25 12:32 papering 阅读(158) 评论(0) 推荐(0) 编辑

2016年11月24日

Behavior-Based Intelligence

摘要： Computer Science An Overview _J. Glenn Brookshear _11th Edition Early work in artificial intelligence approached the subject in the context of explici 阅读全文

posted @ 2016-11-24 22:23 papering 阅读(218) 评论(0) 推荐(0) 编辑

phone number is not known @w@ have no phone, and thus no phone number

摘要： http://dev.mysql.com/doc/refman/5.7/en/problems-with-null.html B.5.4.3 Problems with NULL Values The concept of the NULL value is a common source of c 阅读全文

posted @ 2016-11-24 16:58 papering 阅读(202) 评论(0) 推荐(0) 编辑

breadth-first depth-first best-first

摘要： Computer Science An Overview _J. Glenn Brookshear _11th Edition For our example in Figure 11.7, we chose a starting configuration that produces amanag 阅读全文

posted @ 2016-11-24 13:26 papering 阅读(358) 评论(0) 推荐(0) 编辑

software glue Middleware

摘要： https://en.wikipedia.org/wiki/Middleware https://zh.wikipedia.org/wiki/中间件 Middleware is computer software that provides services to software applicat 阅读全文

posted @ 2016-11-24 13:03 papering 阅读(345) 评论(0) 推荐(0) 编辑

hot code replace

摘要： http://wiki.eclipse.org/FAQ_What_is_hot_code_replace%3F https://social.msdn.microsoft.com/Forums/vstudio/en-US/71474178-f29e-481e-a8c5-af9d7051ccc9/ho 阅读全文

posted @ 2016-11-24 12:51 papering 阅读(172) 评论(0) 推荐(0) 编辑

2016年11月23日

Networking with PHP

摘要： PHP Advanced and Object-Oriented Programming 3rd Edition 阅读全文

posted @ 2016-11-23 23:28 papering 阅读(131) 评论(0) 推荐(0) 编辑

php concurrence

摘要：阅读全文

posted @ 2016-11-23 12:33 papering 阅读(127) 评论(0) 推荐(0) 编辑

2016年11月22日

php thread

摘要： 1-include('w_fun.php');页面已经在执行，则修改include中的函数，倒置旧页面不受影响；新页面生效；2-time 轮流阅读全文

posted @ 2016-11-22 20:34 papering 阅读(248) 评论(0) 推荐(0) 编辑

2016年11月21日

socket 中午吃的啥 socket 并发服务器 fork

摘要： http://www.cnblogs.com/thinksasa/archive/2013/02/26/2934206.html zh.wikipedia.org/wiki/網路插座在作業系統中，通常會為應用程式提供一組應用程式介面（API），稱為插座介面（英语：socket API）。應用程式可阅读全文

posted @ 2016-11-21 13:46 papering 阅读(272) 评论(0) 推荐(0) 编辑

2016年11月19日

Base64原理 bits 3->4 8bits/byte-->6bits/byte

摘要：实践: window.btoa('a')a YQ==abcdef YWJjZGVmabc YWJjab YWI= https://en.wikipedia.org/wiki/Base64 The Base64 index table: ValueChar ValueChar ValueChar Va 阅读全文

posted @ 2016-11-19 19:56 papering 阅读(1528) 评论(0) 推荐(0) 编辑

Strong AI Versus Weak AI

摘要： Computer Science An Overview _J. Glenn Brookshear _11th Edition The conjecture that machines can be programmed to exhibit intelligent behavior isknown 阅读全文

posted @ 2016-11-19 19:25 papering 阅读(441) 评论(0) 推荐(0) 编辑