... opinion isassigned to the target objects, therefore, we have tofocus on the relationship among words in a sentence,not only on the frequent words appeared in a docu-ment. For this reason, ... have the same word fre-quency in themselves, tend to be estimated as theyhave the same topic probablistic distribution withoutconsidering the dependency relation among words.However, there ... and then examine whether or not the esti-mated topic distribution can represent the latent se-mantics of each document based on the accuracy ofretrieval results. Henceforth, we call the conven-tional...