基于模糊综合评价的油菜网络信息可信度研究

Study of Rapeseed Information Website Trusted Measurement Based on Fuzzy Comprehensive Evaluation

为了给用户提供可信的信息服务,需要对网络信息进行可信度评估,而评价网站可信度的方法是网络信息可信度评估的基础和重要组成部分,旨在探索农业综合型和专业型网站可信度评估的方法。应用模糊综合评价法对提出的网站可信度评估指标体系中的重要指标数据进行了融合,再以涉及油菜信息的网站为试验对象,进行试验数据采集与分析,对43个包含油菜信息的综合型和专业型网站可信度进行了计算和综合排序。试验Ⅰ选取了网站PR值、反向链接数、Alexa排名、页面收录数等4个指标,试验Ⅱ选取了网站PR值、反向链接数、Alexa排名、页面收录数、专业性等5个指标,分别进行模糊综合评价。试验结果表明:从网站综合实力判断网站可信度,农博网、中国农业信息网、一亩田油菜网、中华人民共和国农业部、中国农业科学院网对评评价指标体系Ⅰ反应较好;整体上国家级网站可信度高于地方级网站;网站可信度与当地的信息化和农业水平有一定关系;专业型网站与综合型网站差距较大。从网站综合实力和专业需求两方面判断网站可信度,较好的有农博网、中国农业信息网、中华人民共和国农业部。试验Ⅰ的评测指标适合于综合型网站可信度量,试验Ⅱ的评测指标适合于专业型网站可信度量。该文提出的网站可信度评价模型可为其他网站可信度评估提供参考,其中的指标可根据实际情况来选取以及确定其权重。

To provide reliable information for users needs to evaluate network information credibility, acomprehensive evaluation method of website＇s credibility is an important part of foundation and a majormethod of network information credibility evaluation. This paper aimed at exploring evaluation methods of thewebsite＇s credibility of comprehensive type and professional type in agriculture. This paper presented a webcredibility evaluation index system and all indexes were integrated in fuzzy comprehensive evaluation. Withsome rape information websites being the experimental objects, a collection and analysis of experimental datawas made. Methods to evaluate the website＇s credibility were obtained through calculation and sorting of thecredibilities of 43 agricultural comprehensive and professional websites including rape information. Inexperiment Ⅰ, 4 indicators were selected, such as＂PR value of website＂,＂reverse link number＂,＂Alexa ranking＂and＂page index number＂. In experiment Ⅱ, 5 indicators were selected, such as＂PR value ofwebsite＂, ＂reverse link number＂, ＂Alexa ranking＂, ＂page index number＂ and ＂professional relation＂.Respectively, a fuzzy comprehensive evaluation was made. The experimental results showed that when thewebsite credibility was ordered by website comprehensive strength, the better ones were＂www.aweb.com.cn＂,＂www.agri.gov.cn＂, ＂www.ymt360.com＂, ＂www.moa.gov.cn＂ and www.caas.net.cn＂. The national websitecredibility was generally higher than the local website＇s. The website credibility was related to the localinformational and agricultural level. There was a gap between a professional website and a comprehensivewebsite. When the website credibility was ordered by website comprehensive strength and professional needs,better ones were listed as the following：＂www.aweb.com.cn＂,＂www.agri.gov.cn＂,＂www.moa.gov.cn＂. Theindexes in experiment Ⅰ proved to be most suitable for measuring the comprehensive website credibility, andthose in experiment Ⅱ measuring the professional website credibility. Web credibility evaluation modelproposed in this paper could provide reference for all others of this type with indexes and their percentagesdetermined respectively in different actual situations.