Sparse Matrix Storage Format Summary + storage efficiency comparison: COO,CSR,DIA,ELL,HYBOriginal: Http://www.cnblogs.com/xbinworld/p/4273506.html?utm_source=tuicoolutm_medium=referralSparse matrix refers to the matrix elements are mostly 0 of the matrix, in fact, the actual problem of large-scale matrices are basically sparse matrices, a lot of sparsity in 90% or even more than 99%. So we need to have an efficient sparse matrix storage format. This a
Http://www.cnblogs.com/xbinworld/p/4273506.htmlSparse matrix refers to the matrix elements are mostly 0 of the matrix, in fact, the actual problem of large-scale matrices are basically sparse matrices, a lot of sparsity in 90% or even more than 99%. So we need to have an efficient sparse matrix storage format. This article summarizes several typical formats: Coo,csr,dia,ell,hyb.(1) Coordinate (COO)This is t
What does CEO, COO, CFO, CTO mean?
Various positions in the website:
CEO (Chief Executive Officer) CEO similar to General manager, President, is the corporate representative.
COO (Chief operating officer) chief operating officer similar to managing Director
CFO (Chief Financial Officer) Chief financial officer similar to finance general manager
CTO (Chief Technology Officer) chief technical officer similar
In the afternoon, I listened to Dr. Yan Jinming's lecture and got a certain understanding of coo.
1. A coo must have the following capabilities: marketing, financial management, and technical grasp.
2. Finance is not equal to account Accounting.
3. A company does not pay much attention to sales, which is so horrible.
4. It is necessary to clearly write the company's Oo and so business opportunity owner'
What does the CEO, CFO, CTO, COO mean?
CXO is the product of the modern company system, is a kind of system manifestation which separates the ownership and the management right, the "X" in the CxO is a kind of proxy, represents a particular position in the company. where c means Chief (Chief), O means official (officer), the middle letter indicates specific categories of division of labor, such as administration, finance, marketing and so on.
CEO (C
Game Arsenal news report:Recently, "Legend of the Turret" research and development company Lilith COO Zhang Hao at the Chengdu GMGDC Conference to share the story from A game from the timeline is divided into four stages, each with a different focus, presumably as follows:First: Enter the first 10 minutes of the game, the focus is "fine art";Second: The first day of the game, the focus is "fighting";Third: The first month of the game, the focus is "gr
chief executive of an American-led company and a group of CIOs had a conversation about the role of CIOs in modern companies. Halfway through the conversation, he said bluntly: "The CIO may be my most important manager." Without them, I don't know what my company would be like. "This shows CIO's important role in the enterprise.One of the basic qualities of CIO's success is to be proficient in the knowledge of the enterprise and related industries. To engage in informatization, a CIO should at
CSS Abbreviation and how to optimize the skills, CSS abbreviation optimization skills
CSS abbreviationIt refers to simplifying the CSS attribute of multiple rows into one row, also knownCSS code optimizationOrCSS abbreviation. The biggest benefit of CSS abbreviation is that it can significantly reduce the size of CSS f
Css attribute abbreviation set, css abbreviation set
As a front-end attacker, CSS is definitely the foundation, but it is also difficult to grasp the foundation. Today, we will summarize the simplified CSS attributes that are easy to write incorrectly.
1,Background
Background color: background-color basic syntax: background-color: transparent | color
Background image: background-image basic syntax: backgrou
English abbreviation (iv) English abbreviation (iv)1: English date abbreviation 1st=first,2nd=second,3rd=third,4-10 all end with th 4th,5th,6th,7th,8th,9th,10th.11,12,13 because their English is eleven,twelve,thirteen, so the abbreviation is 11th=eleven,12th=twelve,13th=thirteen,14th,15th,16th,17th,18th, 19th,20th.21,2
An abbreviation of a word follows the form A) It --it (no abbreviation) 1b) d|o|g- d1g 1 1 1 1---5----0----5--8c) i| Nternationalizatio|n-- i18n 1 1---5----0d) l|ocalizatio|n-- l10nAssume you has a dictionary and given a word, find whether its abbreviation are unique in the dictionary. A wor
What does it mean? It refers to information technology, which is the abbreviation of English information Technology.
What does BT mean? BT is a peer-to-peer shareware, full name "BitTorrent", Chinese full name: "Bit Stream" also known as "abnormal download", the forum said that a BT, is "abnormal" meaning.
What do you mean by DIY? DIY is a familiar term for every computer enthusiast, is English do It yourself initials, do-it-yourself production mean
Ask a php expert to help determine whether the last character of the host name is "National abbreviation". the Last Post is edited by kwdpx from 2013-07-0519: 05: 08 $ host nbsp ;= nbsp; "www.abc.com"; $ splitresult = preg_split ("Ask the php experts to help you determine that the last character of the host name is the country abbreviation.
This post was last edited by kwdpx at 19:05:08 on
$ Host = "www.ab
English abbreviation (c) English abbreviation (c)1.u=ya=you you, ye, so see-you, can be written as seen ya =c ya=c U.2.I O u=i owe you, IOUs, IOUs, do nouns. Can I give u an IOU for Yuan? Could I write you a IOU loan for 1000 dollars?If u wanna borrow money, u must write a IOU first. If you want to borrow money, you must write a IOU first. Everyone notice that IOU because of the vowel opening, so Yong an.3.
Ask a php expert to help determine whether the last character of the host name is "National abbreviation". the Last Post is edited by kwdpx from 2013-07-0519: 05: 08 $ host nbsp; www.abc.com; $ splitresultpreg_split (., $ host); nbsp. split the host name to determine whether the last character of the host name is the country.
This post was last edited by kwdpx at 19:05:08 on
$ Host = "www.abc.com ";$ Splitresult = preg_split ("/\./", $ host); // U
command abbreviation: ls:list (list directory contents) Cd:change directory (change directory) su:switch user Switch User rpm:redhat package manager Red Hat Pack manager pwd: Print work directory The current directory shows the absolute path to the current working directory ps:process status (process status, Windows-like Task Manager) Common parameters:-AUXFPS-AUXF Show process status Df:disk free its function is to display the amount of disk free s
Unique Word abbreviationAn abbreviation of a word follows the form A) It --it (no abbreviation) 1b) d|o|g- d1g 1 1 1 1---5----0----5--8c) i| Nternationalizatio|n-- i18n 1 1---5----0d) l|ocalizatio|n-- l10nAssume you has a dictionary and given a word, find whether its abbreviation are unique
A string such as "word"contains the following abbreviations:["word", "1ord", "W1rd", "wo1d", "Wor1", "2rd", "w2d", "WO2", "1o1d", "1or1", "W1r1", "1o2", "2r1", "3d", "W3", "4"]given a target string and a set of strings in a dictionary, find a abbreviation of Thistarget string with the smallest possible length such this it does not conflict with abbreviations of the strings in T He dictionary. each number or letter in the
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