Derived from on-demand, the subject has studied the theory of the special hint system research about the system of suggestion for the existing library to build the library hint system (LibRES) apply to intermediate school. Transaction data of readers extract from library management system of current economic secondary school CA Mau techniques used to build the system suggests books. LibRES system is built based on the method of user-based collaborative filtering (using similar Pearson) and method suggestions based on the content (using Hamming index) to support the process of finding the book, view the information on the book's readers when interacting with the system.
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