中文摘要：

伴随着社交媒体的发展,为了更实时有效地访问和集成这些跨语言的数据,语义标注发挥了越来越重要的作用,受到越来越多的重视.为了更加全面深入了解社交媒体的语义标注现状,文章首先介绍社交媒体的语义标注方式,然后详细介绍了社交媒体语义标注的主要方法,从关键词短语抽取、基于本体的实体识别、情感分析与观点挖掘和跨媒体联接等角度进行了阐述与分析,另外探讨了改进语义标注效果的两个途径,最后在此基础上对未来发展进行展望.

英文摘要：

With the development of social media, in order to more effectively access and integrate these cross-language data, semantic annotation plays more important role and gets more attention. In order to understand comprehensively and profoundly the present situation of the field, the paper first introduces the mode of semantic annotation of social media, then elaborates and analyzes the main methods of semantic annotation of social media from aspects of key phrase extraction, ontology-based entity identification, sentiment detection and opinion mining ,and cross-media linking. Moreover the paper discusses two ways to improve semantic annotation of social media. Finally, based on the above, it looks to the future development of the technologies.