基于方差的最优组合赋权模型在网络信息资源评价中的应用

发布时间：2018-01-21 14:50

本文关键词： 网站评价评价指标体系最优组合赋权方差分配系数熵权层次分析法　出处：《计算机应用》2014年01期 　论文类型：期刊论文

【摘要】：针对网络信息资源自由开放、广泛存取、分布共享的特点,对网络空间中处于关键地位的信息节点——网站进行评价,不仅有助于改善网站自身的建设,而且更可促进整个网络信息资源的良性发展。依据最小方差原理,将运用熵权模糊综合评判法求得的客观权重与运用层次分析法求得的主观权重通过最优化组合计算出组合权重,对单一模型只确定出单纯的主观或客观权重进行了修正;再通过专家调查采集指标得分,进而构建出基于方差的最优组合赋权网站评价模型,使评判结果更具科学、合理。最后应用该模型对南京大学数学系网站进行实证评析,并获得日后网站重构或建设方面的一些启示。
[Abstract]:In view of the characteristics of free and open access, wide access and distributed sharing of network information resources, the evaluation of the key information node-website in cyberspace is not only helpful to improve the construction of the website itself. Moreover, it can promote the benign development of the whole network information resources, according to the principle of minimum variance. The objective weight obtained by the entropy weight fuzzy comprehensive evaluation method and the subjective weight obtained by the analytic hierarchy process (AHP) are calculated through the optimization combination. The simple subjective or objective weight of the single model is modified. Then through the expert investigation collection index score, then constructs the optimal combination weight website evaluation model based on variance, makes the judgment result more scientific. Finally, the model is applied to analyze the website of Department of Mathematics of Nanjing University, and some enlightenments on website reconstruction or construction in the future are obtained.
【作者单位】：南京大学数学系;
【分类号】：TP393.092;O236
【正文快照】： 0引言互联网信息资源以急剧增长、广泛存取、开放共享、动态变化为其主要特征。中国互联网络信息中心(China InternetNetwork Information Center,CNNIC)数据[1]显示,作为网络空间中主要信息载体的网页网站发展强劲,截至2012年底,中国网站数量增长率为16.8%,网页数增速更是高

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