P2P Search Mechanism Based on Cosine Similarity Grouping
Jian Wan · Jisuanji gongcheng · 2009
Aiming at the deficit of the existing grouping search mechanism,an improved search mechanism is proposed,which establishes a logical group reasonably based on the cosine similarity of term weight vector,integrating with considering the distance between the nodes.A task-sharing strategy is presented in the inter-group search,letting different members act as the managers of the links.Experimental result shows that the mechanism has strong expansibility,efficient search capability and higher recall rate.