Improved web linkages topic distillation algorithm
Kefei Liu · Jisuanji gongcheng yu sheji · 2007
HITS(hypertext-induced topic search) algorithm is one of the most important algorithms for linkage analysis,however a disadvantage of it is topic drift.The problem of topic drift due to the web pages projecting to wrong latent semantic basis is found.A new WAHTD(weighted adjustments based hyperlinks topic distillation) algorithm is presented,which constructs personalized root set and base set using weighted adjustments and then computes authority and hub value of web pages by HITS to distill topic.The experi-mental results show that WAHTD perform better than HITS in topic distillation quality and improve the topic drift problem,so it is more appropriate to Web query.