Presents the application and the problems in application about the LSI techniques. Then give the solution about the problems. LSI technique projects queries and documents make into a high dimensions space with latent semantic, Co-occurring terms are projected onto the same dimensions, non - co- occurring terms are projected onto different dimensions, SVD method was employed to decompose the original “term - document”matrix reduce its dimensions and get the representation of queries, terms and documents in the reduced dimension space for Chinese information retri...
