What is sns?

1.SNS, the full name of which is Social Networking Services, namely social network site Service, specifically refers to the Internet application service aimed at helping people to establish social network site. It also refers to the existing mature and popular information carriers in society, such as SMS service. Another common explanation of SNS: the full name of Social Network Site, that is, "social website" or "social network". Social network site refers to the relationship network between individuals, and this website based on the idea of social network relationship system is social network site website (SNS website). SNS also refers to Social Network Software, which is a next-generation personal-based network basic software built by using distributed technology, popularly speaking P2P technology.

schematic diagram of SNS network

In p>1967, Stanley Milgram (1934 ~ 1984), a psychology professor at Harvard University, founded the theory of six-degree division, which simply said: "There will be no more than six people between you and any stranger, that is to say, you can know any stranger through six people at most." According to the six-degree segmentation theory, each individual's social circle is constantly enlarged and finally becomes a large network. This is Social Networking site's early understanding. Later, according to this theory, some people established social network site-oriented Internet services, and expanded their social network through "acquaintances of acquaintances", such as ArtComb,Friendster, Wallop,adoreme, etc. But "acquaintances of acquaintances" is only a way of social expansion, not the whole of social expansion. Therefore, now the so-called SNS, its meaning is far less than the level of "acquaintances of acquaintances". For example, cohesion based on the same topic (such as posting), cohesion based on hobbies (such as Fexion), cohesion based on learning experience (such as Facebook), and cohesion based on the same place for weekend trips are all included in the category of "SNS".

2. Social networking sites: Strictly speaking, domestic SNS is not Social Networking Services (social network site service), but Social Network Sites (social networking sites). Taking Renren.com, Kaixin.com, and the SNS platform of Baishui as representatives, combined with some relatively reliable data, it is not difficult to sum up the * * * characteristics of mainstream SNS users. Facebook's success stems from the progress of SNS real name, and now, SNS is forming a new fission. On December 4, 27, Li Ka-shing, the richest man in Hong Kong, spent $6 million on the SNS social networking site Facebook. Not long ago, Facebook just received a $24 million investment from Microsoft, which made Facebook really envied by many Internet practitioners. The success of Facebook has enabled more entrepreneurs to join the field of SNS(Social Network Service). These SNS websites all over the country are linked by interpersonal relationships, forming many networking platforms. Today, with the increasing homogenization, websites such as Viadeo and Skynet have begun to form fission in SNS applications. At the beginning, SNS websites represented by Myspace and Saiwo. com enriched the ways of making friends, such as using blogs, personalized desktop tools, and opening up communities according to interests. These SNS are more like the Web 2. version of the portal dating network in the past. After that, the introduction of real-name registration system made the originally cold and unreliable interpersonal relationship have more trust, and this mechanism reduced the long-standing false information on the Internet. Therefore, users are more active and have a sense of attachment to the network platform itself. Typical representatives are real-name websites such as Facebook and intranet. In the future, personal portals based on web3., such as Broad Network, which integrates interactive communities, personal portals, instant messaging and component platforms, will become mainstream SNS websites. If the websites represented by Myspace and Saiwo.com are regarded as the initial stage of SNS practical application, then campus real-name websites such as Facebook and intranet can be regarded as the intermediate stage of SNS development, while web3. is the development trend of SNS. Although the communication website under this mechanism makes it easier for users to stabilize their network, it still highlights some problems. For example, although it uses the Internet to simulate the communication needs in reality, if it is limited to the general popular mode of making friends, it fails to realize the real-name registration system and its valuable connection except for the formal differences. Today, the Internet has become an indispensable tool, and people hope that the Internet can provide more convenient and efficient support and help for their work and personal development. Therefore, on the credit platform that SNS has established, its business value is gradually revealed. Many people are familiar with the "six-dimensional space": the theory on which SNS can develop. Some people even find out the problem of the coefficient between nodes in this theory, but people often overlook that trust is transmitted between nodes in SNS, and the interest relationship often comes from trust. At present, the commercial real-name registration system platform represented by Viadeo and Skynet can be regarded as another promotion stage in SNS application. They not only adhere to the real-name mechanism, but also have very high requirements for the authenticity of users' learning background and work background. After several years of precipitation, the overall level of users is generally high. Different from the open mode of Facebook, for example, Skynet, under the open platform of social networking sites, opens the application programming interfaces to each other, so that all websites participating in the Open Social can use resources, and realize a greater degree of resource utilization from the whole interconnected platform. In this SNS platform, those users who really want to expand their contacts, develop business and have the same career pursuit can meet their needs of expanding their contacts through the trusted interpersonal hosting service provided by this platform. Different from the previous SNS, the user's stickiness has changed from a beautiful photo, from a wonderful introduction to a real experience background and knowledge background. SNS entered China in 23, but because most websites excessively pursue the number of users and ignore the value of SNS trust circle, many websites become ordinary dating sites. At this time, SNS website must be more focused and constantly use its own characteristics to become a practical tool different from ordinary dating websites.

3. network software

SNS: social network software, based on the six-degree theory [1], expands one's contacts based on knowing friends. And unlimited expansion of their own contacts, when needed, you can always get a little, get the help of the contacts. SNS is a next-generation personal-based network basic software which adopts distributed technology, popularly speaking, P2P technology. Through distributed software programming, SNS arranges the CPU, hard disk and bandwidth scattered on everyone's devices as a whole, and gives these devices, which are relatively small to servers, more powerful capabilities. These abilities include: computing speed, communication speed and storage space. In the Internet, PCs and smart phones have no powerful computing and bandwidth resources, and they rely on website servers to browse and publish information. If the computing and bandwidth resources of each device are redistributed and shared, these devices may have more powerful capabilities than those of those servers. This is the root of the birth of distributed computing theory and the theoretical basis of the birth of SNS technology.

4. Sympathetic nervous system: SNS (sympathetic nervous system) is a part of autonomic nerve. Composition: It consists of central part, sympathetic trunk, ganglion, nerve and nerve plexus. The central part is the lower center of sympathetic nerve, which is located in the whole length of thoracic spinal cord and the lateral angle of gray matter of 1 ~ 3 segments of lumbar spinal cord. Paired sympathetic trunk is located on both sides of the spine, which is chained, and is formed by connecting sympathetic trunk ganglion and internode branches. Each side has 22-25 ganglia called paraspinal ganglion, which can be divided into five parts: neck, chest, waist, sacrum and tail, and each part sends out branches to certain organs. Regulate the activities of the heart and other internal organs. In the abdominal cavity, paravertebral segments are also distributed in front of the spine, which are located near the root of the artery with the same name.

5. flexible net system: SNS sns is the abbreviation of soft net system, that is, flexible net system, which is widely used in construction, especially in highway and railway construction, to protect the slope from tiny collapse. According to different protection methods, it can be divided into active protection and passive protection. Active protection is that the protective net system encloses the rock mass with collapse tendency so that it does not displace; Passive protection is to set up a steel mesh under the rock mass with collapse tendency to intercept the collapsed stones.

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