本碩士論文的主要目的是簡要回顧圖的信息居中度研究。在本文中我們對信息居中度的定義和文獻中的已知結果進行了綜述，並對其中一些文獻中的結果提供新的證明與看法。;The main goal of this thesis is to give a brief review on information centrality of a graph. Its definition and known results in the literature are reviewed, and some of them are presented with new proof
