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Mathematical Problems in Engineering
Volume 2014 (2014), Article ID 418605, 6 pages
http://dx.doi.org/10.1155/2014/418605
Research Article

A Model Based on Cocitation for Web Information Retrieval

School of Mathematical Sciences, University of Electronic Science and Technology of China, Sichuan, Chengdu 611731, China

Received 16 August 2013; Revised 13 January 2014; Accepted 13 January 2014; Published 27 February 2014

Academic Editor: Masoud Hajarian

Copyright © 2014 Yue Xie and Ting-Zhu Huang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

According to the relationship between authority and cocitation in HITS, we propose a new hyperlink weighting scheme to describe the strength of the relevancy between any two webpages. Then we combine hyperlink weight normalization and random surfing schemes as used in PageRank to justify the new model. In the new model based on cocitation (MBCC), the pages with stronger relevancy are assigned higher values, not just depending on the outlinks. This model combines both features of HITS and PageRank. Finally, we present the results of some numerical experiments, showing that the MBCC ranking agrees with the HITS ranking, especially in top 10. Meanwhile, MBCC keeps the superiority of PageRank, that is, existence and uniqueness of ranking vectors.