Bullet Subtitle Sentiment Classification Based on Affective Computing and Ensemble Learning

Algorithm 1

Input: bullet subtitle , the Chinese Bullet Subtitle Sentiment Lexicon

Output: the sentiment value of bullet subtitle under sentiment category

Step 1: extract all sentiment words belonging to sentiment category in ; initialize , ,

Step 2: find all the degree adverbs and the number of negatives between the sentiment word and the previous sentiment word

Step 3: find all the sentiment punctuation between the sentiment word and the next sentiment word

Step 4: use equation (6) to obtain the sentiment reversal variable

Step 5: use equation (5) to calculate the text sentiment value of the current sentiment word

Step 6: when is greater than or equal to , execute Step7; otherwise, execute Step2, ,

Step 7: calculate the gain intensity of using the corresponding dimensional features of and equation (2);

Step 8: output and the algorithm ends.