2014年10月16日星期四

Social network analysis

Social network analysis was introduced to us in the 6th lecture. This analysis method becomes more and more popular and valuable with the rapid development of social network. Moreover, it involves multiple disciplines and research areas, such as data mining, knowledge management, statistical analysis, social capital, dissemination of information and so on. I remembered that one aphorism told that: “The successful of a person, it does not depend on what you know, but who you know.” I think this maxim explains that how important the relationship among people and why we do social network analysis. 

Social network analysis mainly focuses on research the relationship among a group of actors. The actors may be people, communities, organizations and even countries.  In order to analyze the social network, we learnt that how to draw graphs. In my opinion, drawing graphs is a direct way for us to find out the factors and their relationships in the network. We can intuitive see that who is the centre of the relationship network and the potential links between factors. Furthermore, we can finally build the complete relationship network which could reflect part of the social structure. We may also find out the deeper relationship between factors from the graphs. For instance:
1.       Kinship:  parent-child relationship;
2.       Emotion: like, hated, respect;
3.       Occupation: official, doctor, programmer;
4.       Common property: hobbies, organizations


Figure 1 Social network analysis graph

We can see that by analyzing the social network, we can know very detailed information of a person. I feel horrible when I realized this. We easily exposed our personal information when we enjoy using social networking services. Therefore, it is necessary to enhance our personal information protection awareness. To protect our personal information, we may do the following things: disable cookies, regularly clean the browser cache, set restricted sites, encrypt important messages and do not reveal too much personal information on internet.


Figure 2 Personal information protection

Social network analysis can help us to understand the relationship between people better. If you are also interested in this topic, please share your opinion with me.

3 条评论:

  1. Just as what you have said, personal information security is more and more important nowadays as the techniques centered on big data develop very fast. It's necessary for us all to learn more about Internet privacy.

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  2. In the class, we totally focus on how to mining data. We ignore the personal information. What you post on the internet can be crawled and what you have done can be found. We are under a big monitor. It reminds us of being careful of our behavior on the internet. It's so helpful. Thank you!

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  3. it's really glad that security is finally mentioned in your post. I'm really agree with you that with the develop of social network and more and more involved in social network, security is quite a main field we should pay attention to, it's not just protect ourselves, but also enable us to have a more relieved environment to get in touch with our friends.

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