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https://ah.lib.nccu.edu.tw/handle/140.119/69380
題名: | Identifying object isomerism in multidatabase systems | 作者: | 陳良弼 Chen,Arbee L. P.;Tsai, Pauray S. M.;Koh, Jia-Ling |
貢獻者: | 資科系 | 關鍵詞: | Database systems;Probability;Query languages;Interfaces (computer);Knowledge based systems | 日期: | Apr-1996 | 上傳時間: | 28-Aug-2014 | 摘要: | In a multidatabase system that consists of object databases, the same real-world entity can be stored as objects in different databases with incompatible object identifiers. How to identify and integrate these objects representing the same entities such that (a) object duplication in the query result can be avoided, (b) information for the entity can be gathered, and (c) the specialization of multiple classes can be built is an important issue to provide a well structured global object schema and a more informative query result. In this paper, we extend our results on probabilistic query processing and joining relations on incompatible keys to solve the problem. Various data and schema conflicts such as missing data, inconsistent data and domain mismatch which may exist in classes from different databases are considered in the process of identification. | 關聯: | DISTRIBUTED AND PARALLEL DATABASES,4(2),143-168 | 資料類型: | article |
Appears in Collections: | 期刊論文 |
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