Thursday, March 11, 2010

SNA


By the definition of social network, a telecom graph is actually a social network. So, we can apply the methods used in Social Network Analysis (SNA) to the massive telecom graph. Complex network, which have been intensively studied these years, its conception as well as its methods is used here to provide a better description for call graph.This paper discusses the above technologies. At first, a survey on link analysis will be done. A broad set of applications of link analysis in different fields will be presented. Then a typical application of link analysis to telecom call data will be introduced in detail, that's, the measurement of influence deduced from call graph for each telecom user. For this purpose, several famous algorithms and their improved versions will be applied. After that, the massive call graph in a whole will be examined, from the perspective of complex network. In the next chapter, a tool developed for call graph analysis is introduced, which combines most of the implementations of related algorithms in the research process. In chapter 6, the application of the whole research to telecom CRM system is discussed, and a couple of churn prediction models will be brought up and validated. Finally, conclusions for the whole research work are presented.

Wednesday, March 3, 2010

Paradoxically

We are born with many dreams and hopes, which, however, in some way are too heavy for chi hair straightener to continue our journey. We, therefor, have to abandon many, carry few. Nevertheless, even these few are not easy for us to realize. Some will succeed, but most will fail. Paradoxically, the joy brought by the success for which we are willing to sacrifice a lot is always chi hair straightener. We sacrifice a lot, but get a little. More often we will find the things we give up are more important than the goal we pursue. Is a meeting more important than the birthday of your wife, or a contract more emergent than your mother’s longing heart? To live a sober and full life, these things are worth our thinking. Thank God, once again I can sit down to write and, more importantly, to think. I guess what I am writing here is neither an academic essay nor a research paper which may be preferred by my chi straighteners. However, since I have to write, I want write something valuable, if not valuable, at least real. Maybe I do not know the world, but I do know my heart. I know if I can choose, I would rather be an eagle circling lonely in the sky than to be a sparrow flying aimlessly in the crowd.