A personalized recommendation book model(PRBM) is proposed based on readers' reading interest.The PRBM uses decision tree algorithm in Data mining to analyse book borrowing data in a library.Experiments show that the PRBM can recommend new books for old and new readers according to their interest,and can offer personalized and novel service for libraries.
The work deals with the existence and uniqueness of pseudo almost periodic solution of Logistic equation(where 、k(t) are pseudo almost periodic functions and >0、 k(t)>0).
本文就利用数学教材,培养计算机专业计算机专业学生的思维品质给出了几种途径。
Talked about the problem of two kinds of midges’classification. Using the maximize margin thought ,transform classification problem into a quadraticprogramming and its dual problem, namely supportvector machine algorithm. A linear classificationfunction can be obtained by solving the mathprogramming. Built up the above-mentioned model bythe given midges’ sample set based on thealgorithm, and got a linear classification function.It provided a reliable method for midges’ correctclassification.
Objective:To study the dual of Banach frame,P-frame and Xd frame. Methods; we consider Xd a BK space that have the canonical unit vectors as a basis and define a Banach space with norm Xd=Zd⊕Yd by dividing the indices N into two sets. Results:There exists an Xd Bessel sequence {fi}∈X such that ∑cifi is conjective and ∑gi(f)fi, besides we can get a better results when {gi}X* is a p-frame.. Conclution:The dual theory of frame in a Hilbert can be generalized to a Banach space,and we can get the construction of an elements in a Banach space and its dual space.
