跨境电商系统用户数据库智能访问方法优化  

Optimization of Smart Access to User Database for International Trading System

作　　者：刘彩霞 LIU Cai-xia(School of Information Engineering,Zhengzhou University of Industry Technology,Zhengzhou 451150,China)

机构地区：[1]郑州工业应用技术学院信息工程学院

出　　处：《科学技术与工程》2020年第1期265-270,共6页Science Technology and Engineering

基　　金：河南省高等学校青年骨干教师培养计划(2017GGJS195)

摘　　要：为了解决传统方法不适于大规模用户访问,访问准确性差的问题,通过语义指向性匹配和多维索引树编码结合的方法,对跨境电商系统用户数据库智能访问优化方法进行研究。建立跨境电商数据库模型,为数据库智能访问提供模型依据。依据模糊层次聚类提取语义指向性关联特征,在概念格中完成语义指向性相似度计算,依据提取特征,通过相似度匹配实现数据库智能访问,针对其在用户规模较大时影响访问准确性的问题,采用多维索引树编码的方式对其进行优化,实现对跨境电商系统用户数据库智能访问方法的优化。结果表明:采用所提方法对跨境电商系统时域数据与时频数据语义指向性特征进行提取,能够完成数据语义本体特征指向性聚类,冗余干扰信息被滤除,特征分布聚类性较强;对查全率水平较高情况下的查准率进行测试,发现所提方法在查全率升高时,可令查准率保持在较高的水平,未随查全率的升高有显著下降。可见所提方法访问准确性高。At present,traditional methods are not suitable for large-scale user access and poor access accuracy.a smart access optimization method to user database of international trading system was developed by semantic directivity matching and multi-dimensional index tree coding,and a cross-border e-trading database model for a good solution to the smart access was improved.According to fuzzy hierarchical clustering,semantic directivity association features were extracted,semantic directivity similarity calculation was completed in concept lattice,and the smart access was realized by similarity matching in terms of extracted features.Aiming at the problem that affects the accuracy of large-scale access,a multi-dimensional index tree coding system was established,with which access to user databases was optimized for cross-border trading.The results show that the proposed method could extract the semantic directivity features of time-domain data and time-frequency data of an e-commercial system,complete the directivity clustering of data semantic ontology features,remove redundant interference information,and enhance the clustering of feature distribution.In addition,the accuracy rate under the condition of high recall rate was tested.Therefore,when recall rate increased,the accuracy rate could remain at a high level without a big loss.

关 键 词：跨境电商系统 用户数据库 智能 访问 

分 类 号：TP392[自动化与计算机技术—计算机应用技术]