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Customer Loyalty: An Empirical Study on Italian E-commerce Websites
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作者 Adinolfi Raffaele Troisi Orlando 《Chinese Business Review》 2014年第6期388-398,共11页
In contemporary entrepreneurial environment based on customer retention, the growth of the internet has pushed the most dynamic businesses to compete in the electronic market. In literature, there are many studies sho... In contemporary entrepreneurial environment based on customer retention, the growth of the internet has pushed the most dynamic businesses to compete in the electronic market. In literature, there are many studies showing how a company's brand affects customer loyalty. Less attention has been paid to the relationship between e-commerce website loyalty and e-customer loyalty. This paper can be included in a stream of research that applies the construct of loyalty to e-commerce. Thus, this study aims to analyze, within the electronic market, the elements influencing and determining the trust and loyalty of the e-customers. This research consists of a descriptive study carried out utilizing the survey method. The population in this study includes 421 e-customers of Italian online multi-brand portals. The instrument of data gathering was a web-questionnaire and the data analysis was based on regression. Findings show a positive relationship between three factors (website technological level, e-service quality, and brand) and e-customer trust. Furthermore, the correlation, among the three variables, trust as mediating variable, and e-customer's loyalty, has been revealed. Therefore, it can be basically assumed that trust builds e-customer loyalty. 展开更多
关键词 customer loyalty e-commerce BRAND TRUST
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Quality Criteria for B2C E-Commerce Websites in Brazil
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作者 Thair M. Hamtini Ana Alice Vilas Boas +1 位作者 Luciana Pussi Santos Tania Regina Vasconcellos Dias 《Journal of Software Engineering and Applications》 2013年第11期589-596,共8页
The objective of this study is to compare the ranking of the quality of e-commerce B2C portals in Brazil according to explicit criteria described in the article with the ranking according to the INFO 100 ranking. Theo... The objective of this study is to compare the ranking of the quality of e-commerce B2C portals in Brazil according to explicit criteria described in the article with the ranking according to the INFO 100 ranking. Theoretical research is first described, followed by the construction of eight self-established criteria of B2C portal quality measures and identification and compilation of requirements used by the I-Best, Opinia, E-bit and other institutes. After that, a portal quality evaluation is made by the web site content analysis;finally, a comparison of the rankings is presented. The obtained results showed that in spite of the lack of knowledge of the criteria adopted by INFO100 [1], there could be agreement with the criteria adopted in this study, because there was agreement with the results for the Ponto Frio portal. Therefore, it was concluded that the eight criteria used in this study can be useful in a quality analysis of B2C electronic portals. 展开更多
关键词 B2C PORTALS CRITERIA QUALITY e-commerce
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Evaluation and Comparison Research on the Support of Websites to Enterprise's E-Commerce
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作者 SHAO Peiji, HUANG Yixiao, WAN Jie, YANG Jing ( School of Management, University of Electronic Science and Techonology of China Chengdu 610054 China Johnson & Johnson, Philadelphia PA 19104 USA) 《Journal of Electronic Science and Technology of China》 2004年第3期162-166,193,共6页
This paper comparatively analyzes the existing evaluation index of websites, and puts forward the evaluation index and method about the support of a website to enterprise's e-commerce. Through researching on 56 su... This paper comparatively analyzes the existing evaluation index of websites, and puts forward the evaluation index and method about the support of a website to enterprise's e-commerce. Through researching on 56 super enterprises of information industry in Sichuan province, throughout China and the world, analyzing and comparatively studying the support ability of a website to an enterprise's e-commerce, this paper brings forward using five levels to categorize the support ability of a website to enterprise's e-commerce. In the end, the flaw of enterprise's e-commerce practice in Sichuan province and corresponding countermeasure will be illustrated. 展开更多
关键词 e-commerce websiteS EVALUATION
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Image Recognition Model of Fraudulent Websites Based on Image Leader Decision and Inception-V3 Transfer Learning
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作者 Shengli Zhou Cheng Xu +3 位作者 Rui Xu Weijie Ding Chao Chen Xiaoyang Xu 《China Communications》 SCIE CSCD 2024年第1期215-227,共13页
The fraudulent website image is a vital information carrier for telecom fraud.The efficient and precise recognition of fraudulent website images is critical to combating and dealing with fraudulent websites.Current re... The fraudulent website image is a vital information carrier for telecom fraud.The efficient and precise recognition of fraudulent website images is critical to combating and dealing with fraudulent websites.Current research on image recognition of fraudulent websites is mainly carried out at the level of image feature extraction and similarity study,which have such disadvantages as difficulty in obtaining image data,insufficient image analysis,and single identification types.This study develops a model based on the entropy method for image leader decision and Inception-v3 transfer learning to address these disadvantages.The data processing part of the model uses a breadth search crawler to capture the image data.Then,the information in the images is evaluated with the entropy method,image weights are assigned,and the image leader is selected.In model training and prediction,the transfer learning of the Inception-v3 model is introduced into image recognition of fraudulent websites.Using selected image leaders to train the model,multiple types of fraudulent websites are identified with high accuracy.The experiment proves that this model has a superior accuracy in recognizing images on fraudulent websites compared to other current models. 展开更多
关键词 fraudulent website image leaders telecom fraud transfer learning
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CMAES-WFD:Adversarial Website Fingerprinting Defense Based on Covariance Matrix Adaptation Evolution Strategy
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作者 Di Wang Yuefei Zhu +1 位作者 Jinlong Fei Maohua Guo 《Computers, Materials & Continua》 SCIE EI 2024年第5期2253-2276,共24页
Website fingerprinting,also known asWF,is a traffic analysis attack that enables local eavesdroppers to infer a user’s browsing destination,even when using the Tor anonymity network.While advanced attacks based on de... Website fingerprinting,also known asWF,is a traffic analysis attack that enables local eavesdroppers to infer a user’s browsing destination,even when using the Tor anonymity network.While advanced attacks based on deep neural network(DNN)can performfeature engineering and attain accuracy rates of over 98%,research has demonstrated thatDNNis vulnerable to adversarial samples.As a result,many researchers have explored using adversarial samples as a defense mechanism against DNN-based WF attacks and have achieved considerable success.However,these methods suffer from high bandwidth overhead or require access to the target model,which is unrealistic.This paper proposes CMAES-WFD,a black-box WF defense based on adversarial samples.The process of generating adversarial examples is transformed into a constrained optimization problem solved by utilizing the Covariance Matrix Adaptation Evolution Strategy(CMAES)optimization algorithm.Perturbations are injected into the local parts of the original traffic to control bandwidth overhead.According to the experiment results,CMAES-WFD was able to significantly decrease the accuracy of Deep Fingerprinting(DF)and VarCnn to below 8.3%and the bandwidth overhead to a maximum of only 14.6%and 20.5%,respectively.Specially,for Automated Website Fingerprinting(AWF)with simple structure,CMAES-WFD reduced the classification accuracy to only 6.7%and the bandwidth overhead to less than 7.4%.Moreover,it was demonstrated that CMAES-WFD was robust against adversarial training to a certain extent. 展开更多
关键词 Traffic analysis deep neural network adversarial sample TOR website fingerprinting
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Impacts of agri-food e-commerce on traditional wholesale industry:Evidence from China
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作者 Ruyi Yang Jifang Liu +2 位作者 Shanshan Cao Wei Sun Fantao Kong 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第4期1409-1428,共20页
Rapidly expanding studies investigate the effects of e-commerce on company operations in the retail market.However,the interaction between agri-food e-commerce(AEC)and the traditional agri-food wholesale industry(AWI)... Rapidly expanding studies investigate the effects of e-commerce on company operations in the retail market.However,the interaction between agri-food e-commerce(AEC)and the traditional agri-food wholesale industry(AWI)has not received enough attention in the existing literature.Based on the provincial panel data from 2013 to 2020 in China,this paper examines the effect of AEC on AWI,comprising three dimensions:digitalization(DIGITAL),agrifood e-commerce infrastructure and supporting services(AECI),and agri-food e-commerce economy(AECE).First,AWI and AEC are measured using an entropy-based combination of indicators.The results indicate that for China as a whole,AWI has remained practically unchanged,whereas AEC exhibits a significant rising trend.Second,the findings of the fixed-effect regression reveal that DIGITAL and AECE tend to raise AWI,whereas AECI negatively affects AWI.Third,threshold regression results indicate that AECI tends to diminish AWI with three-stage inhibitory intensity,which manifests as a first increase and then a drop in the inhibition degree.These results suggest that with the introduction of e-commerce for agricultural product circulation,digital development will have catfish effects that tend to stimulate the vitality of the conventional wholesale industry and promote technical progress.Furthermore,the traditional wholesale industry benefits financially from e-commerce even while it diverts part of the traditional wholesale circulation for agricultural products. 展开更多
关键词 agri-food e-commerce traditional wholesale industry panel threshold model dual-channel circulation
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Impact of BRICS Trade Facilitation on China's Exports Using Cross-Border E-Commerce
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作者 Longling LI Kaimei CHEN Zijian LONG 《Asian Agricultural Research》 2024年第5期1-7,共7页
With the rapid growth of the global digital economy, cross-border e-commerce, as an emerging form of trade, has gradually become a powerful engine to promote the development of global trade. BRICS is an important forc... With the rapid growth of the global digital economy, cross-border e-commerce, as an emerging form of trade, has gradually become a powerful engine to promote the development of global trade. BRICS is an important force in the global economy, and the progress of the BRICS countries' trade facilitation level has an important impact on the global trade environment. This paper conducts an in-depth study of the dynamic changes in BRICS trade facilitation from 2013 to 2022, and uses an extended gravity model to analyze the specific impact of this change on China's exports using cross-border e-commerce. The results show that although the BRICS countries have made some progress in trade facilitation, the overall level still needs to be improved, and there are obvious differences among member countries. However, the improvement of trade facilitation among BRICS countries has undoubtedly brought significant positive effects to China's exports using cross-border e-commerce. 展开更多
关键词 Trade facilitation BRICS Cross-border e-commerce Export trade
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Predicting Purchasing Behavior on E-Commerce Platforms: A Regression Model Approach for Understanding User Features that Lead to Purchasing
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作者 Abraham Jallah Balyemah Sonkarlay J. Y. Weamie +2 位作者 Jiang Bin Karmue Vasco Jarnda Felix Jwakdak Joshua 《International Journal of Communications, Network and System Sciences》 2024年第6期81-103,共23页
This research introduces a novel approach to improve and optimize the predictive capacity of consumer purchase behaviors on e-commerce platforms. This study presented an introduction to the fundamental concepts of the... This research introduces a novel approach to improve and optimize the predictive capacity of consumer purchase behaviors on e-commerce platforms. This study presented an introduction to the fundamental concepts of the logistic regression algorithm. In addition, it analyzed user data obtained from an e-commerce platform. The original data were preprocessed, and a consumer purchase prediction model was developed for the e-commerce platform using the logistic regression method. The comparison study used the classic random forest approach, further enhanced by including the K-fold cross-validation method. Evaluation of the accuracy of the model’s classification was conducted using performance indicators that included the accuracy rate, the precision rate, the recall rate, and the F1 score. A visual examination determined the significance of the findings. The findings suggest that employing the logistic regression algorithm to forecast customer purchase behaviors on e-commerce platforms can improve the efficacy of the approach and yield more accurate predictions. This study serves as a valuable resource for improving the precision of forecasting customers’ purchase behaviors on e-commerce platforms. It has significant practical implications for optimizing the operational efficiency of e-commerce platforms. 展开更多
关键词 e-commerce Platform Purchasing Behavior Prediction Logistic Regression Algorithm
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Research on Current Situation and Legal Regulation of Cosmetics Live Streaming E-commerce in China
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作者 Jiang Ying 《China Detergent & Cosmetics》 CAS 2024年第1期63-70,共8页
Analyze the compatibility between cosmetics and live streaming e-commerce from its own nature,marketing means and supply chain characteristics.According to the prominent problems,sort out the relationship between all ... Analyze the compatibility between cosmetics and live streaming e-commerce from its own nature,marketing means and supply chain characteristics.According to the prominent problems,sort out the relationship between all parties in the cosmetics live e-commerce industry chain.Combined with the latest regulatory policies of live streaming e-commerce and cosmetics,the responsibilities of different subjects in cosmetics live streaming e-commerce are summarized,and relevant suggestions and countermeasures are put forward for the standardization and development of live streaming e-commerce.Cosmetics brand owners are the first responsible persons for product quality.Anchors,as a mixed identity between intermediary,advertising spokesperson and operator,should bear stricter joint and several liability when recommending products related to consumers’health.If anchors fail to clearly identify themselves in the recommendation process,thus causing consumers to mistake them for the operator of the cosmetics,they should assume the obligations of the operator. 展开更多
关键词 COSMETICS live streaming e-commerce legal relationship responsibilities of parties
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How Does E-Commerce Policy Affect Consumption Disparities of Rural Households?-Evidence from China
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作者 Zhang Cheng Weng Xiyan 《China Economist》 2024年第4期107-128,共22页
In the context of China’s ongoing efforts to promote countryside revitalization and facilitate domestic economic circulation,it is of great significance to reduce the consumption disparity among rural households and ... In the context of China’s ongoing efforts to promote countryside revitalization and facilitate domestic economic circulation,it is of great significance to reduce the consumption disparity among rural households and unleash the consumption potential in the countryside.Based on data from China Family Panel Studies,this paper adopts a staggered difference-in-differences method to assess the impact of the e-commerce to enter rural areas on the consumption disparity among rural households.Findings:the comprehensive demonstration work of promoting e-commerce to enter rural areas has reduced the consumption disparity among rural households through the following mechanisms.Firstly,this policy initiative has mitigated the consumption-inhibiting effect on rural household consumption due to the local market size and external market accessibility by promoting the distribution of consumer goods to villages.Secondly,this policy initiative has also increased the agricultural income of rural households and reduced their consumption disparity by distributing farm produce to cities and enhancing the agricultural income of rural households.Moreover,the work is characterized by inclusive growth and is not susceptible to the“elite capture”phenomenon. 展开更多
关键词 e-commerce to enter rural areas consumption disparity among rural household market accessibility market size income of rural households
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ML and DL-based Phishing Website Detection:The Effects of Varied Size Datasets and Informative Feature Selection Techniques
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作者 Kibreab Adane Berhanu Beyene Mohammed Abebe 《Journal of Artificial Intelligence and Technology》 2024年第1期18-30,共13页
Onemust interact with a specific webpage or website in order to use the Internet for communication,teamwork,and other productive activities.However,because phishing websites look benign and not all website visitors ha... Onemust interact with a specific webpage or website in order to use the Internet for communication,teamwork,and other productive activities.However,because phishing websites look benign and not all website visitors have the same knowledge and skills to inspect the trustworthiness of visited websites,they are tricked into disclosing sensitive information and making them vulnerable to malicious software attacks like ransomware.It is impossible to stop attackers fromcreating phishingwebsites,which is one of the core challenges in combating them.However,this threat can be alleviated by detecting a specific website as phishing and alerting online users to take the necessary precautions before handing over sensitive information.In this study,five machine learning(ML)and DL algorithms—cat-boost(CATB),gradient boost(GB),random forest(RF),multilayer perceptron(MLP),and deep neural network(DNN)—were tested with three different reputable datasets and two useful feature selection techniques,to assess the scalability and consistency of each classifier’s performance on varied dataset sizes.The experimental findings reveal that the CATB classifier achieved the best accuracy across all datasets(DS-1,DS-2,and DS-3)with respective values of 97.9%,95.73%,and 98.83%.The GB classifier achieved the second-best accuracy across all datasets(DS-1,DS-2,and DS-3)with respective values of 97.16%,95.18%,and 98.58%.MLP achieved the best computational time across all datasets(DS-1,DS-2,and DS-3)with respective values of 2,7,and 3 seconds despite scoring the lowest accuracy across all datasets. 展开更多
关键词 ANOVA-F-test deep learning feature selection technique machine learning mutual information phishing website datasets phishing website detection
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The Impact of E-Commerce Live Broadcasts on Consumers’Purchase Intention
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作者 Xingchao Bian Thanakon Ratchatakulpat Rattanavalee Maisak 《Proceedings of Business and Economic Studies》 2024年第4期263-268,共6页
E-commerce live broadcast has an important influence on consumers’purchase intention.The three dimensions of live broadcast content in the broadcast room are the number of comments,product quality,and live content as... E-commerce live broadcast has an important influence on consumers’purchase intention.The three dimensions of live broadcast content in the broadcast room are the number of comments,product quality,and live content as independent variables.A theoretical model is constructed with perceived value and risk as intermediaries and the consumers’purchase intention as the dependent variable,and corresponding hypotheses are put forward.We designed the scale,collected relevant data,and tested the model hypothesis using Statistical Package for Social Sciences(SPSS)and Analysis of Moment Structure(AMOS)software.The study found that the number of comments and product quality had a significant impact on perceived value,perceived risk,and consumers’purchase intention.From this conclusion,it is suggested that businesses should control the number of comments,strengthen the product quality of comments,and distinguish the repetition degree of the content of live broadcasts. 展开更多
关键词 Livestreaming e-commerce Perceived value Perceived risk Purchase intention
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Research on Professional Teaching Reform of the E-Commerce Major in Vocational Colleges Under the Internet Era
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作者 Yong Liang 《Journal of Contemporary Educational Research》 2024年第5期21-26,共6页
With the rapid development of science and technology,the face of human society has undergone great changes;with the emergence of the Internet era,all kinds of educational technology,equipment,and software in vocationa... With the rapid development of science and technology,the face of human society has undergone great changes;with the emergence of the Internet era,all kinds of educational technology,equipment,and software in vocational colleges have been widely used to carry out education and teaching,and has achieved remarkable results.Based on this,colleges and universities’electronic commerce(e-commerce)professional teachers should try to rely on the Internet to build information teaching classrooms,introduce advanced methods to build efficient classrooms by integrating teaching resources,and optimize the top-level design,so as to activate the classroom atmosphere,mobilize students’emotions,make them immersed in the teaching of electronic commerce courses.In view of this,this paper combines the existing theory and experience,first analyzes the dilemma faced by the current teaching of e-commerce in vocational colleges,then discusses the practical significance of teaching reform based on the Internet era,and lastly puts forward the specific practice path. 展开更多
关键词 INTERNET Vocational colleges e-commerce major Teaching reform
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Analysis of the Current Situation, Influential Factors, and Countermeasures of Rural E-commerce Development
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作者 Yi Wei Guizhen He 《Journal of Electronic Research and Application》 2024年第2期140-145,共6页
The development of rural e-commerce is becoming an important driver for the transformation of China’s rural economy,and with the rapid development of information technology and the upgrading of the agricultural indus... The development of rural e-commerce is becoming an important driver for the transformation of China’s rural economy,and with the rapid development of information technology and the upgrading of the agricultural industry,rural e-commerce is showing a vigorous momentum of development.Traditionally,agricultural products are mainly sold through traditional farmers’markets,which are subjected to geography and channel limitations,resulting in inefficient circulation of agricultural products.This paper analyzes the definition,the status quo,as well as the influencing factors of rural e-commerce development.On this basis,countermeasures for the advancement of rural e-commerce development are put forward. 展开更多
关键词 Rural e-commerce Influencing factors Industrial clusters RESPONSE
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Application of Emotional Design in the Instinctual Layer of Baby Brand Official Websites
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作者 Kaili Ma Albert Young Choi 《Psychology Research》 2024年第3期89-99,共11页
In an era dominated by high technology,there is an increasing need for environments rich in emotional design.The emotive design of websites has become a highlight in modern web development,where an aesthetically pleas... In an era dominated by high technology,there is an increasing need for environments rich in emotional design.The emotive design of websites has become a highlight in modern web development,where an aesthetically pleasing appearance can significantly enhance the usability of a website.This paper delves into the innovative practices at the instinctual layer of baby brand official websites.A multitude of visual elements come together to form the overall appearance of these web pages,with each element’s appearance being determined by its color,shape,and arrangement.Through a literature-based theoretical analysis,this study captures the fundamental principles of emotive design concerning these visual elements,focusing on color,shape,and composition.It also consolidates relevant theories to suggest innovative enhancements based on existing designs,presenting new trends in baby brand website design that create a highly emotive online environment for users. 展开更多
关键词 brand official website visual elements emotional design
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Research on Cross-border E-commerce Empowering the Transformation and Upgrading of Dongguan’s Manufacturing Industry
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作者 Shoufei Su Juan Zhang 《Proceedings of Business and Economic Studies》 2024年第6期207-212,共6页
With the rise of the global digital economy and the deep integration of digital technology into traditional manufacturing operations,cross-border e-commerce provides a new commercial model and pathways for transformin... With the rise of the global digital economy and the deep integration of digital technology into traditional manufacturing operations,cross-border e-commerce provides a new commercial model and pathways for transforming and upgrading Dongguan’s traditional manufacturing industry.It also offers perspectives for enhancing the integration of online and offline operations while advancing the industrial Internet process.This study examines the impact of cross-border e-commerce on Dongguan manufacturing,highlighting its role in improving production efficiency,expanding international markets,and driving industrial upgrading through product enhancement,supply chain optimization,and innovative business models.By incorporating practical cases and data analysis from Dongguan enterprises,this study investigates the benefits and challenges of cross-border e-commerce in the transformation of the manufacturing industry,aiming to offer a reference for enterprise digital transformation and global competitive strategies. 展开更多
关键词 Cross-border e-commerce Dongguan manufacturing Transformation and upgrading Case study
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Optimization and Innovation of the Operation Model of Mobile Social E-commerce under AI Empowerment:Taking the Female Community Platform“Little Red Book”as an Example
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作者 Mi Liu Jia Yu +1 位作者 Yan Li Jun Zheng 《Proceedings of Business and Economic Studies》 2024年第4期269-274,共6页
This article takes the female community platform“Little Red Book”as an example to explore the optimization and innovation of mobile community e-commerce operation mode under Artificial Intelligence(AI)empowerment.Fi... This article takes the female community platform“Little Red Book”as an example to explore the optimization and innovation of mobile community e-commerce operation mode under Artificial Intelligence(AI)empowerment.Firstly,the relevant concepts were defined,and then the unique attributes of mobile community e-commerce were analyzed.As a typical representative of mobile community e-commerce,Little Red Book introduces the background and characteristics of its platform,analyzes its mobile community operation mode,and focuses on exploring how to establish a mobile community e-commerce platform and effective operation mode under the empowerment of AI technology,to provide some reference and inspiration for the development and operation of Little Red Book and other e-commerce platform enterprises. 展开更多
关键词 Mobile social e-commerce Little Red Book Female community platform AI User experience UGC
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基于Website信息发布平台上的二次开发 被引量:1
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作者 武彤 温炜 《贵州工业大学学报(自然科学版)》 CAS 2002年第3期52-55,71,共5页
介绍Website信息发布平台的基本功能 ,并且将利用该平台建立Web站点与传统方法建立Web站点相比较 ;
关键词 website 信息发布平台 二次开发 WEB站点 软件开发 政府上网工程
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基于Website的旅行社电子商务运营绩效影响因素研究——以四川省为例 被引量:11
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作者 赖斌 杨丽娟 《旅游学刊》 CSSCI 北大核心 2007年第6期86-90,共5页
此文在文献研究的基础上,归纳了旅行社网站绩效的评价因子,并提出若干影响旅行社电子商务运营绩效的因素,经相关性检验证实了各项影响因素设计的合理性及其对旅行社网站绩效的影响强度,最后,通过聚类分析获得影响因素的分类特征。相关... 此文在文献研究的基础上,归纳了旅行社网站绩效的评价因子,并提出若干影响旅行社电子商务运营绩效的因素,经相关性检验证实了各项影响因素设计的合理性及其对旅行社网站绩效的影响强度,最后,通过聚类分析获得影响因素的分类特征。相关成果将为促进我国旅行社电子商务的理论研究和实践运作提供有益参考。 展开更多
关键词 旅行社电子商务 网站 运营绩效 影响因素
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一种上下文感知的E-commerce评级大数据赋权方法
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作者 齐连永 窦万春 周毓明 《上海大学学报(自然科学版)》 CAS CSCD 北大核心 2016年第1期36-44,共9页
电子商务(E-commerce)的飞速发展,产生了大量针对商品的在线评级数据,通过分析评级数据,用户可以对商品的质量进行评估.然而,评级数据的海量性和差异性使得用户难以快速而准确地评估商品的质量.鉴于此,提出一种基于E-commerce评级的上... 电子商务(E-commerce)的飞速发展,产生了大量针对商品的在线评级数据,通过分析评级数据,用户可以对商品的质量进行评估.然而,评级数据的海量性和差异性使得用户难以快速而准确地评估商品的质量.鉴于此,提出一种基于E-commerce评级的上下文感知赋权方法(context-aware weighting approach,CWA),以选出少数"重要"的评级数据并抛弃大多数"不重要"的评级数据,从而确保商品质量评估的快速性和准确性.最后,通过一组实验验证了CWA的有效性. 展开更多
关键词 e-commerce 用户评级 大数据 赋权 上下文
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