数字图书馆中借阅信息资源快速获取仿真

发布时间：2018-03-22 20:30

本文选题：数字图书馆　切入点：图书借阅信息　出处：《计算机仿真》2017年06期 　论文类型：期刊论文

【摘要】：对数字图书馆中借阅信息资源的快速获取,可有效降低图书馆借阅图书过程出现信息错误的概率。信息资源获取过程,需要先确定存取代价最小的目标函数,可调整资源数据存放位置。传统方法引入调度因子来确定节点的状态,来获取相应信息资源,但忽略了对节点位置的调整,导致资源获取效率较低。提出基于K均值聚类的数字图书馆图书借阅信息资源获取方法。将信息资源数据获取问题抽象为网络节点聚类问题,建立信息资源获取能耗模型,计算不同类型节点采集、发送、接收和查询数据时消耗的能量,结合K均值聚类理论建立图书借阅信息资源数据获取模型,确定图书借阅信息资源数据存取代价最小的目标函数,依据目标函数的变化自适应地调整资源数据存放位置,由此完成数字图书馆图书借阅信息资源获取。实验结果表明,所提方法能够有效减少能量消耗,且获取效率较高。
[Abstract]:The rapid acquisition of borrowing information resources in digital libraries can effectively reduce the probability of information errors in the course of library borrowing. In the process of obtaining information resources, we must first determine the objective function with the lowest access cost. The traditional method introduces the scheduling factor to determine the state of the node to obtain the corresponding information resource, but neglects the adjustment of the node position. This paper presents a method of obtaining information resources of digital library based on K-means clustering. The problem of information resource data acquisition is abstracted as a cluster problem of network nodes, and the energy consumption model of information resource acquisition is established. The energy consumption of collecting, sending, receiving and querying data from different types of nodes is calculated, and the data acquisition model of library borrowing information resources is established based on K-means clustering theory. This paper determines the objective function with the lowest access cost of library information resources, adaptively adjusts the location of resource data storage according to the change of objective function, and accomplishes the acquisition of library library information resources. The experimental results show that, The proposed method can effectively reduce energy consumption and achieve high efficiency.
【作者单位】：聊城大学东昌学院;
【分类号】：G250.76;TP311.13

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