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・ Cooplacurripa River
・ Cooplacurripa Station
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・ CoopNet content distribution system
・ Coopr
・ Coopracambra National Park
・ Cooperative breeding
・ Cooperative Business Bank Building (Ljubljana)
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Cooperative database
・ Cooperative Development Foundation
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・ Cooperative Dictionary of the Rhinelandic Colloquial Language
・ Cooperative distributed problem solving
・ Cooperative diversity
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・ Cooperative Engagement Capability
・ Cooperative Escapism in Familial Relations
・ Cooperative eye hypothesis
・ Cooperative Farm 1
・ Cooperative Farm 2
・ Cooperative federalism
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・ Cooperative Forestry Assistance Act of 1978


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Cooperative database : ウィキペディア英語版
Cooperative database

A cooperative database is a type of database that holds information on customers and their transactions. Many companies will contribute information to a database in return for aggregate information on the customers other companies have provided. Such databases are used for promotional mailings, credit card fraud detection and fighting E-mail spam.
Alternatively, the term "cooperative database" can be used to describe database systems that incorporate techniques to aid users beyond returning direct answers.〔Wesley W. Chu: Cooperative Database Systems. Wiley Encyclopedia of Computer Science and Engineering, 2008.〕 Such databases can, for example, give explanations as to why a query returns no or few results, detect and report some user misconception suggested by the query, provide justifications for returned answers, or relax query attributes to find "close" but non-precise answers. The fundamental goal is to extend databases towards reflecting the cooperative principle, and in particular, to avoid misleading users by omission of pertinent, contextual detail.
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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