信息集成若干方法的比较（国外英文资料）.docVIP

信息集成若干方法的比较（国外英文资料） The first 22 volume first Stage 3 Jinan university journal (natural science edition ) Vol. 22 No. 32001 June Journal of Science Jun. 2001 Comparison of several methods of information integration What wins , Holly Guo-xiang yao, (jinan university network center Guangzhou, guangdong 510632). [the Introduction and comparison Methods adopted by systems such as TSIMMIS, IM, and SIMS ; It also introduces knowledge in information integration Said method Finally, an improved method was proposed . [key words Information integration ; Information sources ; Knowledge representation ; logic [middle image classification] ] TP391 [document identification code ] A [article number 1000-9965 (2001) : 03-0052-05 In recent years Especially with the The development of Internet technology and applications How do you access, relate, and merge those separate, separate points The data of the cloth are getting more and more attention And there has been a lot of success People want to be able to visit Data from different places Whether it is structured or unstructured Information integration is a distributed database, collaborative information system A core issue of the system and data warehouse . The early integration was done in the database design environment The focus is on so-called pattern integration Q (model integration) The topic And thats the beginning of the submodel To design a global, consistent pattern for database applications Each pattern is independent of each other . The most Recent research focuses on information integration The integration of inductive patterns is summarized by considering real data in the integration process . In a few According to the integration of The data set in the information source is the input The goal is to provide an integrated, consistent view of the data contained in the information source Figure. Data is generally integrated in two ways : virtual (virtual) and concrete Materialized. In the virtual case , set The system AC