Abstract

There commonly exists the problem of unsatisfactory recommendations given by book recommendation systems. Aiming at the developing characteristic of library user group in university which reflects the consistency between the book borrowing sequence and the accumulation of knowledge, the paper introduces the book lists borrowed by similar users in user group with different development stage to the application of collaborative filtering algorithm in order to increase effective information contained by the whole recommendation process. Consequently, the consistency of the recommendation results and the actual needs of users is improved while the performance of recommendation system rises. The effectiveness of the introduction of user development stage is shown and proved by experiments.

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