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2016年12月16日

摘要： Computer Systems A Programmer's Perspective Second Edition Of course, we are glossing over many difficult issues here. What if different net- works ha 阅读全文

posted @ 2016-12-16 23:27 papering 阅读(208) 评论(0) 推荐(0) 编辑

Checklist For Choosing The Right Database Engine

摘要： http://sqlite.org/whentouse.html Appropriate Uses For SQLite SQLite is not directly comparable to client/server SQL database engines such as MySQL, Or 阅读全文

posted @ 2016-12-16 19:08 papering 阅读(222) 评论(0) 推荐(0) 编辑

中文文本生成_实战

摘要： http://ltp.ai/demo.html 阅读全文

posted @ 2016-12-16 10:37 papering 阅读(567) 评论(0) 推荐(0) 编辑

writing concurrent programs

摘要： Computer Systems A Programmer's Perspective Second Edition To this point in our study of computer systems, we have assumed thatprograms run in isolati 阅读全文

posted @ 2016-12-16 09:39 papering 阅读(158) 评论(0) 推荐(0) 编辑

2016年12月15日

physical addressing virtual addressing 物理寻址虚拟寻址

摘要： Computer Systems A Programmer's Perspective Second Edition The main memory of a computer system is organized as an array of M contiguousbyte-sized cel 阅读全文

posted @ 2016-12-15 20:00 papering 阅读(432) 评论(0) 推荐(0) 编辑

General protection fault Exceptions in Linux/IA32 Systems

摘要： Computer Systems A Programmer's Perspective Second Edition Exception number Description Exception class0 Divide error Fault13 General protection fault 阅读全文

posted @ 2016-12-15 19:50 papering 阅读(392) 评论(0) 推荐(0) 编辑

access violation at address General protection fault

摘要： https://en.wikipedia.org/wiki/General_protection_fault In memory errors, the faulting program accesses memory that it should not access. Examples incl 阅读全文

posted @ 2016-12-15 19:38 papering 阅读(311) 评论(0) 推荐(0) 编辑

Bit-Value Type

摘要： https://dev.mysql.com/doc/refman/5.7/en/bit-type.html MySQL 5.7 Reference Manual / ... / Bit-Value Type - BIT 12.2.4 Bit-Value Type - BIT The BIT data 阅读全文

posted @ 2016-12-15 16:32 papering 阅读(205) 评论(0) 推荐(0) 编辑

Programs vs. processes

摘要： Computer Systems A Programmer's Perspective Second Edition This is a good place to pause and make sure you understand the distinction between a progra 阅读全文

posted @ 2016-12-15 13:39 papering 阅读(153) 评论(0) 推荐(0) 编辑

concurrency parallel 并发并行 parallelism

摘要：在传统的多道程序环境下，要使作业运行，必须为它创建一个或几个进程，并为之分配必要的资源。当进程运行结束时，立即撤销该进程，以便能及时回收该进程所占用的各类资源。进程控制的主要功能是为作业创建进程，撤销已经结束的进程，以及控制进程在运行过程中的状态转换。在现代os中，进程控制还具有为为一个进程创建若干阅读全文

posted @ 2016-12-15 13:11 papering 阅读(388) 评论(0) 推荐(0) 编辑

2016年12月14日

Regression analysis

摘要： https://en.wikipedia.org/wiki/Regression_analysis Regression analysis is widely used for prediction and forecasting, where its use has substantial ove 阅读全文

posted @ 2016-12-14 19:35 papering 阅读(253) 评论(0) 推荐(0) 编辑

Support vector machine

摘要： https://en.wikipedia.org/wiki/Support_vector_machine In machine learning, support vector machines (SVMs, also support vector networks[1]) are supervis 阅读全文

posted @ 2016-12-14 19:33 papering 阅读(259) 评论(0) 推荐(0) 编辑

Cluster analysis

摘要： https://en.wikipedia.org/wiki/Cluster_analysis Cluster analysis or clustering is the task of grouping a set of objects in such a way that objects in t 阅读全文

posted @ 2016-12-14 19:21 papering 阅读(379) 评论(0) 推荐(0) 编辑

cluster analysis in data mining

摘要： https://en.wikipedia.org/wiki/K-means_clustering k-means clustering is a method of vector quantization, originally from signal processing, that is pop 阅读全文

posted @ 2016-12-14 19:17 papering 阅读(282) 评论(0) 推荐(0) 编辑

Write Cache-friendly Code

摘要： Computer Systems A Programmer's Perspective Second Edition In Section 6.2, we introduced the idea of locality and talked in qualitative terms about wh 阅读全文

posted @ 2016-12-14 08:56 papering 阅读(276) 评论(0) 推荐(0) 编辑

2016年12月13日

a compromise between lock overhead and data safety

摘要： High Performance My SQL THIRD EDITION A locking strategy is a compromise between lock overhead and data safety, and thatcompromise affects performance 阅读全文

posted @ 2016-12-13 16:28 papering 阅读(139) 评论(0) 推荐(0) 编辑

Connection Management and Security

摘要： High Performance My SQL THIRD EDITION Each client connection gets its own thread within the server process. The connection’squeries execute within tha 阅读全文

posted @ 2016-12-13 16:26 papering 阅读(144) 评论(0) 推荐(0) 编辑

locality

摘要： Computer Systems A Programmer's Perspective Second Edition Well-written computer programs tend to exhibit good locality . That is, they tend to refere 阅读全文

posted @ 2016-12-13 13:29 papering 阅读(477) 评论(0) 推荐(0) 编辑

Universal Serial Bus USB 3.0

摘要： Computer Systems A Programmer's Perspective Second Edition A Universal Serial Bus (USB) controller is a conduit for devices attached to a USB bus, whi 阅读全文

posted @ 2016-12-13 13:06 papering 阅读(225) 评论(0) 推荐(0) 编辑

2016年12月12日

Shared libraries

摘要： Computer Systems A Programmer's Perspective Second Edition Shared libraries are modern innovations that address the disadvantages of static libraries. 阅读全文

posted @ 2016-12-12 23:12 papering 阅读(143) 评论(0) 推荐(0) 编辑

2016年12月11日

泌尿系统 Excretory system

摘要： https://zh.wikipedia.org/wiki/泌尿系统泌尿系統，有時也歸類於排泄系統（Excretory system）的一部分，負責尿液的產生、運送、儲存與排泄。人類的泌尿系統包括左右兩顆腎臟、左右兩條輸尿管、膀胱、內外兩道括約肌，以及尿道。泌尿系統的主要功能為排泄。排泄是指機體代阅读全文

posted @ 2016-12-11 22:16 papering 阅读(229) 评论(0) 推荐(0) 编辑

2016年12月10日

dynamic-link library shared library of functions and resources

摘要： https://msdn.microsoft.com/en-us/library/1ez7dh12.aspx A dynamic-link library (DLL) is an executable file that acts as a shared library of functions a 阅读全文

posted @ 2016-12-10 21:38 papering 阅读(141) 评论(0) 推荐(0) 编辑

2016年12月9日

xpath

摘要： $x("//ul[@id='s-results-list-atf']//li[@data-asin]/@data-asin") https://www.amazon.com/s/ref=nb_sb_noss?url=node%3D13896617011&field-keywords=huawei < 阅读全文

posted @ 2016-12-09 16:23 papering 阅读(287) 评论(0) 推荐(0) 编辑

Static Random-Access Memory Dynamic Random-Access Memory

摘要： COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE NINTH EDITION RAM technology is divided into two technologies: dynamic and static. A 阅读全文

posted @ 2016-12-09 13:27 papering 阅读(307) 评论(0) 推荐(0) 编辑

zero cycles - 1 to 30 cycles - tens of millions of cycles

摘要： Computer Systems A Programmer's Perspective Second Edition To this point in our study of systems, we have relied on a simple model of a computer syste 阅读全文

posted @ 2016-12-09 13:12 papering 阅读(215) 评论(0) 推荐(0) 编辑

regardless of how many processors are devoted to a parallelized execution of this program

摘要： https://en.wikipedia.org/wiki/Amdah's_law Amdahl's law is often used in parallel computing to predict the theoretical speedup when using multiple proc 阅读全文

posted @ 2016-12-09 12:48 papering 阅读(218) 评论(0) 推荐(0) 编辑

2016年12月8日

Maximum Likelihood

摘要： https://en.wikipedia.org/wiki/Maximum_likelihood_estimation http://mathworld.wolfram.com/MaximumLikelihood.html 阅读全文

posted @ 2016-12-08 23:12 papering 阅读(142) 评论(0) 推荐(0) 编辑

Distinctive Image Features from Scale-Invariant

摘要： http://nichol.as/papers/Lowe/Distinctive Image Features from Scale-Invariant.pdf Abstract This paper presents a method for extracting distinctive inva 阅读全文

posted @ 2016-12-08 20:08 papering 阅读(180) 评论(0) 推荐(0) 编辑

Gender, Genre, and Writing Style in Formal Written Texts

摘要： http://u.cs.biu.ac.il/~koppel/papers/male-female-text-final.pdf Abstract. This paper explores differences between male and female writing in a large s 阅读全文

posted @ 2016-12-08 20:05 papering 阅读(260) 评论(0) 推荐(0) 编辑

Capabilities and Limitations of Optimizing Compilers

摘要： Computer Systems A Programmer's Perspective Second Edition Modern compilers employ sophisticated algorithms to determine what values are computed in a 阅读全文

posted @ 2016-12-08 19:59 papering 阅读(219) 评论(0) 推荐(0) 编辑

Linguistic corpora 种子语料库-待分析对象-分析与更新语料库

摘要： Computational Linguistics http://matplotlib.org/ https://github.com/matplotlib/matplotlib/blob/master/INSTALL#L59 http://www.nltk.org/book/ch01.html#i 阅读全文

posted @ 2016-12-08 16:21 papering 阅读(408) 评论(0) 推荐(0) 编辑

Natural Language Toolkit

摘要： http://www.nltk.org/ >>> import nltk >>> nltk.download() 阅读全文

posted @ 2016-12-08 13:10 papering 阅读(177) 评论(0) 推荐(0) 编辑

数组指针类型结构体联合体分配和访问按地址传递按值传递

摘要： Moving scalars to or from floating point registers movss moves a single 32 bit floating point value to or from an XMM register movsd moves a single 64 阅读全文

posted @ 2016-12-08 12:43 papering 阅读(220) 评论(0) 推荐(0) 编辑

2016年12月7日

保存现场通用寄存器过程调用的机器级表示栈栈帧参数传递逆向工程

摘要：计算机系统基础(一)：程序的表示、转换与链接-模块七第2讲选择和循环语句的机器级表示（2）-网易公开课 https://open.163.com/newview/movie/free?pid=WFVPGEQSL&mid=PFVPGFAAS leal (%eax,%eax), %edx 将eax乘阅读全文

posted @ 2016-12-07 20:01 papering 阅读(237) 评论(0) 推荐(0) 编辑

GenderGuesser

摘要： http://www.hackerfactor.com/GenderGuesser.php#Analyze 阅读全文

posted @ 2016-12-07 16:04 papering 阅读(203) 评论(0) 推荐(0) 编辑

hardware control language

摘要： Computer Systems A Programmer's Perspective Second Edition We then provide some background on digital hardware design. We describe the basic building 阅读全文

posted @ 2016-12-07 13:06 papering 阅读(474) 评论(0) 推荐(0) 编辑

improve performance whilemaintaining the functionality of a simpler and more abstract model design of processor hardware

摘要： Computer Systems A Programmer's Perspective Second Edition In this chapter, we take a brief look at the design of processor hardware. We study the way 阅读全文

posted @ 2016-12-07 13:04 papering 阅读(186) 评论(0) 推荐(0) 编辑

IA-32指令系统 x86-64 instruction-set architecture Processor Architecture 指令集结构 x87FPU MMX SSE SIMD

摘要： X86 Assemble指令--LEA - 简书 https://www.jianshu.com/p/01e8d5ef369f https://baike.baidu.com/item/lea/1139441 lea（微机8086/8088系列的一条指令）_百度百科 LEA reg16,mem LE 阅读全文

posted @ 2016-12-07 12:53 papering 阅读(823) 评论(0) 推荐(0) 编辑

x86-64 processor (aka amd64, x64) x86, IA-32 i386 Intel 386， AArch64 processor (aka arm64) ，AMD64

摘要：小结： 1、 The new 386 design, available at 12.5 MHz and 16 MHz clock speeds, allowed the chip to process information more than twice as fast as the 286, 阅读全文

posted @ 2016-12-07 12:27 papering 阅读(463) 评论(0) 推荐(0) 编辑

2016年12月6日

Natural Language Processing Computational Linguistics

摘要： http://www.nltk.org/book/ch00.html After this, the pace picks up, and we move on to a series of chapters covering fundamental topics in language proce 阅读全文

posted @ 2016-12-06 20:01 papering 阅读(179) 评论(0) 推荐(0) 编辑