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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
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posted @ 2016-12-15 16:32
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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
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posted @ 2016-12-15 13:39
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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
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posted @ 2016-12-15 13:11
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https://en.wikipedia.org/wiki/Regression_analysis Regression analysis is widely used for prediction and forecasting, where its use has substantial ove
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posted @ 2016-12-14 19:35
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https://en.wikipedia.org/wiki/Support_vector_machine In machine learning, support vector machines (SVMs, also support vector networks[1]) are supervis
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posted @ 2016-12-14 19:33
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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
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posted @ 2016-12-14 19:21
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https://en.wikipedia.org/wiki/K-means_clustering k-means clustering is a method of vector quantization, originally from signal processing, that is pop
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posted @ 2016-12-14 19:17
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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
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posted @ 2016-12-14 08:56
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High Performance My SQL THIRD EDITION A locking strategy is a compromise between lock overhead and data safety, and thatcompromise affects performance
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posted @ 2016-12-13 16:28
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High Performance My SQL THIRD EDITION Each client connection gets its own thread within the server process. The connection’squeries execute within tha
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posted @ 2016-12-13 16:26
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Computer Systems A Programmer's Perspective Second Edition Well-written computer programs tend to exhibit good locality . That is, they tend to refere
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posted @ 2016-12-13 13:29
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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
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posted @ 2016-12-13 13:06
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Computer Systems A Programmer's Perspective Second Edition Shared libraries are modern innovations that address the disadvantages of static libraries.
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posted @ 2016-12-12 23:12
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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
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posted @ 2016-12-11 22:16
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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
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posted @ 2016-12-10 21:38
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$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 <
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posted @ 2016-12-09 16:23
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COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE NINTH EDITION RAM technology is divided into two technologies: dynamic and static. A
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posted @ 2016-12-09 13:27
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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
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posted @ 2016-12-09 13:12
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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
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posted @ 2016-12-09 12:48
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https://en.wikipedia.org/wiki/Maximum_likelihood_estimation http://mathworld.wolfram.com/MaximumLikelihood.html
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posted @ 2016-12-08 23:12
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http://nichol.as/papers/Lowe/Distinctive Image Features from Scale-Invariant.pdf Abstract This paper presents a method for extracting distinctive inva
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posted @ 2016-12-08 20:08
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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
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posted @ 2016-12-08 20:05
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Computer Systems A Programmer's Perspective Second Edition Modern compilers employ sophisticated algorithms to determine what values are computed in a
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posted @ 2016-12-08 19:59
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Computational Linguistics http://matplotlib.org/ https://github.com/matplotlib/matplotlib/blob/master/INSTALL#L59 http://www.nltk.org/book/ch01.html#i
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posted @ 2016-12-08 16:21
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http://www.nltk.org/ >>> import nltk >>> nltk.download()
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posted @ 2016-12-08 13:10
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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
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posted @ 2016-12-08 12:43
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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
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posted @ 2016-12-07 20:01
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http://www.hackerfactor.com/GenderGuesser.php#Analyze
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posted @ 2016-12-07 16:04
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Computer Systems A Programmer's Perspective Second Edition We then provide some background on digital hardware design. We describe the basic building
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posted @ 2016-12-07 13:06
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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
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posted @ 2016-12-07 13:04
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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
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posted @ 2016-12-07 12:53
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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,
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posted @ 2016-12-07 12:27
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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
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posted @ 2016-12-06 20:01
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1 w-WAITING--- 2 3 4 7 8
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posted @ 2016-12-06 18:29
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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
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posted @ 2016-12-06 15:32
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Computer Systems A Programmer's Perspective Second Edition address-space layout randomization
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posted @ 2016-12-06 13:18
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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
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posted @ 2016-12-06 13:07
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Computer Systems A Programmer's Perspective Second Edition Many computer systems place restrictions on the allowable addresses for the primitive data
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posted @ 2016-12-06 12:34
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Operand forms Computer Systems A Programmer's Perspective Second Edition
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posted @ 2016-12-06 08:57
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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
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posted @ 2016-12-05 13:04
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