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This paper constructs an architectural model of database gateway, which can monitor and record the data flow between users and databases of digital library. Then it introduces cosine Similarity Algorithm, and proposes COSDCSU, (DCSU, databases choice stickiness of user) to present the similarity of choice tendency in user pairs. Furthermore, it discusses the Interval Probability distribution of COSDCSU values (IPDCV), and explores the application of IPDCV distribution characteristic while librarians making decisions.
Date of Conference: 12-14 Dec. 2008