Due to the tag semantic ambiguity and unsatisfactory tag retrieval from folksonomy system,this paper applies the improved latent semantic indexing to improve tag retrieval efficiency. Firstly,the authors design the tag semantic retrieval model of bibliography system based on the improved LSI,define a new weight algorithm of tag-book matrix,describe in detail key technologies,and finally implement a prototype system. Experimental results based on douban reading data show that the system achieves a good effec...
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