The Central Information Reference and Control On – Line (CIRCOL) System is a computer -based document reference retrieval system maintained by the Foreign Technology Division (FTD) in support of Scientific / Technical intelligence pro duction . CIRCOL System performance was analyzed by systematically studying the effects of twelve primary factors on search response time.

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Optimization of Retrieval Techniques and File Structures for the CIRCOL (Central Information Reference and Control Online System), February 1974 [157 Pages, 45.5MB]





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