【Title】 Study of multi-media information system and challenges it faces

【author】 WANG Xiao Xia （IT Center; Institute of Ethnology and Anthropology; Chinese Academy of Social Sciences; Beijing 100081; China）;

【key word】 multi-media information system; searches; MPEG;

【Abstract】 This paper gives a brief introduction using of multi-media information system,The paper also discusses text-based retrieval,content-based retrieval and the challenges it face,and the possible measures may be taken to deal with them.