| R. Giladi and P. Shoval. An architecture of an intelligent system for routing user requests in a network of heterogeneous databases. Journal of Intelligent Information Systems, 3:205--219, 1994. |
....potential bottlenecks, is prone to failures, violates the autonomy of the database systems, and does not guarantee privacy and confidentiality of the shared data. In an effort to avoid centralised structures and to help educate the users about the information space, other approaches were proposed [1, 5, 11]. In FINDIT [1] each participating database has an object oriented Work supported by Brazilian foundation CNPq, grant no. 200209 94 9. co database storing information about coalition and services in which it is involved. The search mechanism proposed in [5] supports location of relevant databases ....
....other approaches were proposed [1, 5, 11] In FINDIT [1] each participating database has an object oriented Work supported by Brazilian foundation CNPq, grant no. 200209 94 9. co database storing information about coalition and services in which it is involved. The search mechanism proposed in [5] supports location of relevant databases with the help of a meta knowledge base (MKB) Milliner et al. 11] proposed the use of a high level context abstraction that defines objects using Global Concepts (GCs) to allow inter node relationship discovery. However, these approaches do not specify ....
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R. Giladi and P. Shoval. An architecture of an intelligent system for routing user requests in a network of heterogeneous databases. Journal of Intelligent Information Systems, 3:205--219, 1994.
....important and complex issue that will be a topic of future work is related to the access of requested data that is partitioned among several databases. 7 Related Work Some approaches have been proposed in the literature to address the information discovery problem for a large number of databases [2, 3, 6, 10, 11, 12, 14]. These approaches present a way of identifying the content of the different databases, but do not specify how to access the data after locating the database. In our approach we specify the complete execution of a query (data request, database location and data access) The requested data is ....
....defining objects using Global Concepts. The terms used in the hierarchical structures of our approach share some similarities with these Global Concepts. The approach entails high interaction with the user to build the co databases and execute a search. The search mechanism proposed in [6, 14] performs the location of relevant databases with the help of a meta knowledge base (MKB) The approach uses natural language to execute the discovery of related databases. This provides a user friendly interface to the users, but requires some additional structures such as: context and part of ....
R. Giladi and P. Shoval. An architecture of an intelligent system for routing user requests in a network of heterogeneous databases. Journal of Intelligent Information Systems, 3:205--219, 1994.
....potential bottlenecks, is prone to failures, violates the autonomy of the database systems, and does not guarantee privacy and confidentiality of the shared data. In an effort to avoid centralised structures and to help educate the users about the information space, other approaches were proposed [4, 5, 6]. However, these approaches do not specify how to perform sharing and data access after location. We have proposed an alternative to the problem of building an integrated global schema when dealing with a large number of databases [7, 8, 9] The approach permits distributed information discovery ....
R. Giladi and P. Shoval. An architecture of an intelligent system for routing user requests in a network of heterogeneous databases. Journal of Intelligent Information Systems, 3:205--219, 1994.
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