My research now is about Probabilistic Graphical Model(PGM) and its application

Probabilistic Graphical Model is a graph which represents the conditional relation of random variables. It provides us an graphical way to draw the complex situation to solve. Factor graph is one type of PGM, it is hypergraph containing factor functions and random variable. It is new for computer scientist because it is initially used for electrical engineering only.

My task is to use PGM and factor graph to model the skill of players in game. The reason is that some classical ranking system such as Elo could be applied to single player game but with the development of online game, the need of ranking players in teams becomes necessary. We hope that we could create a new model to handle this case.