2014年9月21日星期日

Why Analyze Social Media

Hello everyone, very glad to share my thoughts here!

After three courses taken, I get two essential points about Social Media Analytics and want to share my opinions with you.

Social circle exists in many websites, such as Facebook, Twitter, Google+, Renren, Weibo, Qzone, Wechat, and even Baidu Post Bar which can also be identified as a kind of social network.


fig.1 major social media

Based on the complex relationship in these social circles, a website can form a social graph and use it as a reference to recommend new friends to a certain person so as to maintain or expand the volume of its users. This is the first aspect and the other one is as what I have mentioned in class, big data.

Analyzing deeply into the specific messages one posts or sends to another person, a website can use the technique of NLP to get learned about what a certain person or a circle of friends mostly concerned about. Using the data, ads can be pushed, resulting in boosting consumption. In this way, business value can be realized.


fig.2 using the cosine of two item of news to identify similarity


I ever read a book by Dr. Jun Wu. The book “The Beauty of Mathematics” mentioned the basic techniques used by Google, including NLP and its effect on search and ads in several chapters. The book introduced the use of cosine theorem and Bayesian network in the classification of news and key words. My knowledge about these aspects are enlightened by this interesting book, so I recommend it to you here.