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What is Enterprise Architecture (EA )?

The Analects of Confucius Zi Lu said: "The name is not regular words, but not words. " Although the term enterprise architecture (EA) originated in the West, its English expression is not so accurate. For example, the "What's XXX" we are used to has two different translation methods. One is "

What is supervised learning and unsupervised learning

of more learning methods, and it differs from supervised learning in that we do not have any training samples in advance and need to model the data directly. This may sound like a bit of a mystery, but there are many places in our own world that we use unsupervised learning. For example, we go to a painting exhibition, we are completely ignorant of the art, but after appreciating a lot of works, we can also divide them into different factions (such as which

Talking about what is the Java Development environment, test environment and production environment, and its process

difference is that it and the production system of the highest synchronization, almost the same, some tests, such as the need for large data volume, Using this environment test to see the performance of the program is more accurate than using a test environment (typically less data). (not required, not in our company)4. Production environment: the formal use of

What is rest?

computers should be/computers. This idea is more intuitive, and I once again verified the arguments that URL can help us design.Let me explain my thoughts:If each user's needs can be abstracted as resources, rest can be fully used.(My point is: can every user requirement be abstracted as a resource? Is it a little difficult?

What is good e-commerce site user Experience

e-commerce shopping. If a user buys counterfeit goods or prices that are significantly higher than the market price on an e-commerce site, the chances of a user visiting the site will be very small.Range Layer :To provide comprehensive online shopping functions. such as efficient and accurate product search, clear product classification, simple order process, a variety of payment methods, convenient orders and logistics inquiries, fast return and exc

What is the font of the Apple font new features

At the WWDC2015 conference, Apple released IOS9, watchOS 2, OS x El Capitan three system updates, mainly for Iphone/ipad, Apple Watches, Mac computer equipment, where everyone is aware of the iOS9 and OS x el The Capitan system has replaced new fonts, iOS9 the San Francisco (San Francisco) fonts previously supplied by Apple Watch, and the OS X El Capitan has a new "apple font" built into it. So, what

How does the Linux system administrator know what the user is doing?

Article Title: How does a Linux system administrator know what a user is doing. Linux is a technology channel of the IT lab in China. Including desktop applications, Linux system management, kernel research, embedded systems, open source, and other basic classification Linux systems are a multi-user operating system, each user logging on to the system can execute

What PS software is used to do in Div CSS development

What is Photoshop software for PS in the development of div CSS?In Div CSS Development, PS software is essential software, mainly used for div+css development to cut out the layout of the picture material, get the width value, get the height value, get the color value, get the padding value, get the margin value and so on.Developing PS in the entire CSS play a ro

What is Kai CHEN?

calligraphy more carefully to reach the perfect realm and set up the beautiful appreciation standard of Xiao Kai's Calligraphy in China. Generally speaking, writing small words is not the same as writing large words. In principle, writing large words must be close, and writing small words must be more than enough. That is to say: To write big words, you must be able to make small words as

[Translation] what is an owl ontology?

ArticleDirectory 1.1 owl-Lite 1.2 OWL-DL 1.3 owl-full 3.1 individuals (individual) 3.2 Property) Class) This article is a translation of chapter 3 of document a practical guide to building owl ontologies using the protege-owl plugin and CO-ODE tools edition 1.0, with pictures omitted. Proté Gé is an open source software entity editor developed by Stanford University. It has ex

What operating system does the computer on Shenzhou ship use, and why is it self-developed not Linux?

The main content of Chinese aerospace Spaceos is The imitation of VxWorks653 (653 is the product name, not the version number) of the American Wind River system company.First explain why this system is not used with Linux:The spacecraft's memory and CPU are very weak, weak to what extent: the heavenly number of the CPU

What is a closure? -Python tutorial

-disappearing private data) function (object); or a Closure is a memory function.The MDN is defined as follows: Closures are FunctionsThat refer to independent (free) variables. In other words, the function defined in the closure 'remembers 'the environment in which it was created. Closures-JavaScript First, it is clear that a closure

What is the difference between utf8 and utf8mb4 in mysql?

Unicode planes. For UTF encoding, read the article "Common coding Summary."UTF8 is a character set supported in earlier versions of Mysql, supporting only the UTF-8 characters with a maximum of three bytes, the basic multiple text plane in Unicode. This may be because at the beginning of the MySQL release, characters outside the base multilingual plane are really rarely used. After the MySQL5.5.3 version, you can use the UTF8MB4 character set to save

Explain to relatives and friends what the series is IP, port, and domain name

Explain to relatives and friends what the series is IP, port, and domain name IP addresses, ports, and domain names are no stranger to professional people, but they may not be familiar to non-professional people. The purpose of this article is: First, I want to install "brick house" (in fact I don't know much about it). I want to learn about computer science, Se

What is the best reading experience for mobile devices

the time that users waste by opening multiple pages to view updates, and reduces the download time of content by excluding spam that is irrelevant to the topic. Flipboard to aggregate social news, the information filtered by others is more accurate. If you subscribe to too many blogs in Google Reader, you will soon be flooded with 1000+ entries, not selective

What is the ftp mlsd command?

What is mlsd ftp commandWhat is the ftp mlsd command? (Note: The original document has been changed) [Traceback: http://www.ftprush.com/ftp-mlsd.html] Older servers supports LIST command only for directory listing, this way the FTP client gets a non-userfriendly raw format for parsing, and only FTP clients knows what

What is the use of custom things?

Note: For a long time, I am confused about what custom events and methods do in the class.What is the difference? Why do events need to be used to call functions implemented by methods? As a XX on csdn says, it's too much to fart with your pants off ~~ Well, I don't agree, since Microsoft can make this thingThere must be a certain degree of existence. It is stran

What is HTML5?

function, there is a small circle on Google map. Click it to tell GoogleMap your current geographic location. Currently, geolocation API is not widely used by many desktop browsers (only chrome and Firefox 3.6 +But the Google gears plug-in can help those old browsers implement this function. TwitterIn this way, the geolocation API is automatically used when the

{Definition} What is REST favorites

system structure through URL. In REST, all URLs correspond to resources. As long as the URL design is good, the presented system structure is also good. This is similar to Test Driven Development. It designs system interfaces through Test cases. Each Test case represents a series of user requirements. Developers do not need to write functions at the beginning, b

Improving program performance and what is cache -- Starting from memory structure and local Principle Analysis -- Basic Quality of good code

high-speed cache memory between the CPU register and the primary memory called the L1 cache, it can be accessed within 2-4 clock periods. Later, it was found that there was a large gap between the L1 high-speed cache and the primary storage, and a faster L2 cache was inserted between the L1 high-speed cache and the primary storage, it can be accessed within 10 clock cycles. Therefore, in this mode, the current storage system has been formed in the constant evolution. Now we can know that the

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