国防科技大学学报2012，Vol.34Issue(1)：150-154,5.
网络舆情中一种基于OLDA的在线话题演化方法
OLDA-based method for online topic evolution in network public opinion analysis
摘要
Abstract
The topic evolution was investigated for network public opinion analysis. The properties of network public opinion information were analyzed firstly. Based on the properties, the latent semantics of textual data for network public opinion was described by using the topic model, and the text streams are modeled with a consideration of time for online analysis. Furthermore, a topic evolution method based on OLDA was proposed by incorporating the correlation of topics among time slices. The proposed method was experimentally verified to be efficient for detecting topic evolution of network public opinion.关键词
网络舆情/话题模型/话题演化/Gibbs抽样Key words
network public opinion/ topic model/ topic evolution/ Gibbs Sampling分类
信息技术与安全科学引用本文复制引用
胡艳丽,白亮,张维明..网络舆情中一种基于OLDA的在线话题演化方法[J].国防科技大学学报,2012,34(1):150-154,5.基金项目
国家自然科学基金资助项目(60902094). （60902094）
