Previous Previous Previous Previous researches researches researches researches for for for for emotional emotional emotional emotional analysis analysis analysis analysis of of of of texts texts texts texts have have have have included included included included a a a a variety variety variety variety of of of of text text text text contents: a a a a Chinese Chinese Chinese Chinese emotion emotion emotion emotion corpus corpus corpus corpus (Ren-(Ren-(Ren-(Ren-CECps), CECps), CECps), CECps), in in in inthis this this this study, study, study, study, we we we we make make make make an an an an analysis analysis analysis analysis on on on on emotion emotion emotion emotion expressions expressions expressions expressions in in in in blogs blogs blogs blogs at at at at sentence sentence sentence sentence level. level. level. level. Firstly, Firstly, Firstly, Firstly, we we we we separate separate separate separate the the the the sentences sentences sentences sentences into into into into two two two two classes: classes: classes: classes: simple simple simple simple sentences sentences sentences sentences (sentences (sentences (sentences (sentences without without without without negative negative negative negative words, words, words, words, conjunctions, conjunctions, conjunctions, conjunctions, or or or or question question question question mark) mark) mark) mark) and and and and complex complex complex complex sentences sentences sentences sentences (sentences (sentences (sentences (sentences with with with with negative negative negative negative words, words, words, words, conjunctions, conjunctions, conjunctions, conjunctions, or or or or question question question question mark). mark). mark). mark). Then Then Then Then we we we we compare compare compare compare the the the the two two two two classes classes classes classes of of of of sentence sentence sentence sentence on on on on sentence sentence sentence sentence emotion emotion emotion emotion recognition recognition recognition recognition based based based based on on on on emotional emotional emotional emotional words. words. words. words. Furthermore Furthermore Furthermore Furthermore we we we we analysis analysis analysis analysis the the the the following following following following factors factors factors factors for for for for emotion emotion emotion emotion change change change change at at at at sentence sentence sentence sentence level: level: level: level: negative negative negative negative , and and and and contextual contextual contextual contextual emotions. emotions. emotions. emotions. At At At At last, last, last, last, we we we we make make make make an an an an hypothesis hypothesis hypothesis hypothesis that that that that the the the the emotional emotional emotional emotional focus focus focus focus of of of of a a a a sentence sentence sentence sentence could could could could be be be be expressed expressed expressed expressed by by by by a a a a certain certain certain certain clause clause clause clause in in in in t...