Title :
FCAN: A Structured P2P System Based on Content Query
Author :
Wang, Jing ; Yang, Shoubao ; Gao, Ying ; Guo, Leitao
Author_Institution :
Dept. of Comput. Sci., Univ. of Sci. & Technol. of China
Abstract :
The existing DHT-based file storage systems are suffering problems of being restricted to exact match and lacking semantic-based query. To solve these problems, a DHT-based file storage system named FCAN is proposed. Mapping a document vector from semantic space to P2P space by FastMap, FCAN can effectively reduce the dimensions of it to implement semantic-based query without affecting the semantic integrality of this document. By clustering the nearest neighbors based on centroid, FCAN is further improved to reduce the redundant messages and search time. Simulations show that FCAN has not only higher recall and precision, but also fewer search time and redundant messages
Keywords :
file organisation; peer-to-peer computing; query processing; FCAN; content query; file storage systems; nearest neighbor method; semantic-based query; structured P2P system; Clustering algorithms; Computer science; Costs; Floods; Grid computing; Nearest neighbor searches; Network servers; Real time systems; Scalability; Space technology;
Conference_Titel :
Grid and Cooperative Computing, 2006. GCC 2006. Fifth International Conference
Conference_Location :
Hunan
Print_ISBN :
0-7695-2694-2
DOI :
10.1109/GCC.2006.44
