一種基于本體的PageRank算法的改進策略:介紹Google 等搜索引擎應用的PageRank 算法的定義、特點及缺陷。針對PageRank 算法在基于Ontology 的海洋文檔檢索系統應
用中的問題對其加以改進，增加了文本文檔的判斷和主題相關性的判斷，提出IPageRank 算法。介紹海洋文檔檢索系統，并將改進的IPageRank 算法應用于該系統中進行驗證。
關鍵詞：PageRank 算法；IPageRank 算法；主題相關；本體

【Abstract】This paper introduces the definition, the characteristic and the limitation of PageRank algorithm used by Google and other search
engine. It develops a system, ocean search system, which is based on Ontology and PageRank algorithm. However, because of PageRank algorithm’s
insufficiencies in this system, a new algorithm is proposed and applied in the system’s consummation. It introduces the functions of the ocean search
system and takes an illustration and test to the new algorithm.
【Key words】PageRank algorithm; IPageRank algorithm; theme-relativity; Ontology