The successful prediction of a stock’s future price could yield significant profit. However, many people believe that stock market is not predictable. Why? Because stock market is the everyday summation of human opinions and world events that investors observe and react to on a minute by minute basis. There are…

In the last article “Social Network Visualization in Field of Breast Cancer on Twitter”, we talked about how to generate social network from tweets extracted by applying Twitter API. At first we found out the nodes of Twitter users and edges among them, and then calculated PageRank for each node…

Social Network Analysis (SNA) has existed for decades, but until recent years companies and organizations are beginning to appreciate the meaningful insights. The rising popularity of SNA closely associated with the explosion of online social media. Using mathematical tools to systematically understand networks, SNA provides the most important influencers in…

It is very common to invest in stock on the basis of suggestions from professional stock traders online. Many of stock traders have several social media accounts to post their thoughts, conjecture and comments. As one of the biggest social media platforms, Twitter creates an online community for people to…