CAJ | 학술논문

针对舆情话题演化的时序特性、衍生特性和话题漂移现象，在分析话题演化特性的基础上构建了基于时间片的话题动态演化模型，并设计了话题追踪算法，将网页内容与链接关系归一化来计算话题相关度。实验表明，该算法能够有效应对话题漂移和话题衍生效应，显著提高了话题的追踪效果。
침대여정화제연화적시서특성、연생특성화화제표이현상，재분석화제연화특성적기출상구건료기우시간편적화제동태연화모형，병설계료화제추종산법，장망혈내용여련접관계귀일화래계산화제상관도。실험표명，해산법능구유효응대화제표이화화제연생효응，현저제고료화제적추종효과。
The timing characteristics , derivative features and topic drift in evolution of public opinion topic were analyzed . The dynamic evolution model was established based on the analysis .The topic tracking algorithm was designed .The relevance between topics was computed when web content was combined with links analysis .The experimental results show that the algo-rithm can effectively deal with topics drift and derivative effects and significantly improves the effectiveness of integrated indicators of topic tracking .