检索结果-南通市图书馆

Comparative study on mode split discrete choice models

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Modern Transportation 2013年第4期21卷 266-272页

作者： Xianlong Chen Xiaoqian Liu Fazhi Li Guangzhou Transport Planning and Research Institute Transportation Planning and Design Division Architectural Design&Research Institute of Tongji University(Group) Co.Ltd.

discrete choice model acts as one of the most important tools for studies involving mode split in the context of transport demand forecast. As different types of discrete choice models display their merits and restrictions diversely, how to properly select the specific type among discrete choice models for realistic application still remains to be a tough problem. In this article, five typical discrete choice models for transport mode split are, respectively, discussed, which includes multinomial logit model, nested logit model （NL）, heteroscedastic extreme value model, multinominal probit model and mixed multinomial logit model （MMNL）. The theoretical basis and application attributes of these five models are especially analysed with great attention, and they are also applied to a realistic intercity case of mode split forecast, which results indi- cating that NL model does well in accommodating similarity and heterogeneity across alternatives, while MMNL model serves as the most effective method for mode choice prediction since it shows the highest reliability with the least significant prediction errors and even outperforms the other four models in solving the heterogeneity and similarity problems. This study indicates that conclusions derived from a single discrete choice model are not reliable, and it is better to choose the proper model based on its characteristics.

关键词： discrete choice model Mode split NL MMNL HEV MNP

User Decision-based Analysis of Urban Electric Vehicle Loads

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

CSEE Journal of Power and Energy Systems 2021年第1期7卷 190-200页

作者： Lei Dong Chunfei Wang Mengting Li Ke Sun Tianyi Chen Yingyun Sun the State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources(North China Electric Power University) Changping DistrictBeijing 102206China the State Grid Economic and Technological Research Institute Co. Ltd.

The grid load attributable to electric vehicles (EVs)is affected by the choice behaviors of EV users. To analyze theeffects of factors such as travel demand and electricity priceson user behavior, a logit discrete choice model is introducedto simulate the users decisions to charge/travel. Based on aquasi-steady-state traffic network, a model for cluster electricvehicles considering the user’s behavior is designed to obtain theprobability distribution of the user’s behavior and the chargeand discharge curves of cluster EVs under various scenarios. Thevalidity of the proposed model is verified using an IEEE 9-nodetraffic network case and an urban traffic network case. Furthermore,the impact of the electricity price, traffic conditions, andother factors on the load curves of urban EVs is analyzed.

关键词： Cluster electric vehicles discrete choice model quasi-steady traffic network model vehicle-to-grid(V2G)

Clicking through the Clickstream: A Novel Statistical modeling Approach to Improve Information Usage of Clickstream Data by E-Commerce Entities

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Intelligent Information Management 2023年第3期15卷 180-215页

作者： Corban Allenbrand Analytics Information and Operations Management University of Kansas Lawrence USA

Success or failure of an E-commerce platform is often reduced to its ability to maximize the conversion rate of its visitors. This is commonly regarded as the capacity to induce a purchase from a visitor. Visitors possess individual characteristics, histories, and objectives which complicate the choice of what platform features that maximize the conversion rate. Modern web technology has made clickstream data accessible allowing a complete record of a visitor’s actions on a website to be analyzed. What remains poorly constrained is what parts of the clickstream data are meaningful information and what parts are accidental for the problem of platform design. In this research, clickstream data from an online retailer was examined to demonstrate how statistical modeling can improve clickstream information usage. A conceptual model was developed that conjectured relationships between visitor and platform variables, visitors’ platform exit rate, boune rate, and decision to purchase. Several hypotheses on the nature of the clickstream relationships were posited and tested with the models. A discrete choice logit model showed that the content of a website, the history of website use, and the exit rate of pages visited had marginal effects on derived utility for the visitor. Exit rate and bounce rate were modeled as beta distributed random variables. It was found that exit rate and its variability for pages visited were associated with site content, site quality, prior visitor history on the site, and technological preferences of the visitor. Bounce rate was also found to be influenced by the same factors but was in a direction opposite to the registered hypotheses. Most findings supported that clickstream data is amenable to statistical modeling with interpretable and comprehensible models.

关键词： Business Intelligence Intelligent Information Management Web Analytics Web Technology Management Exit Rate Bounce Rate Online Consumer model discrete choice model

Factors influencing information inequality in suburban Shanghai

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Library and Information Science 2013年第4期6卷 66-78页

作者： Jun CHEN Nong LI The Institute of Information Shanghai Academy of Social Sciences

Purpose:This paper aims to analyze the factors that influence information inequality in the suburban areas of Shanghai in an effort to better understand information inequality and find ways to reduce the ***/methodology/approach:A survey was conducted to gather data from the rural people who received the Shanghai information and communication technology(ICT)training courses and data analysis was based on the 1,200 valid questionnaires *** using the discrete choice model,we studied the impacts of individual attributes such as gender,age,educational level and occupation and the factors of information inequality such as information skill and the purpose of using information technology(IT)on information inequality in suburban ***:The most critical factors affecting information inequality of Shanghai suburban residents are educational level and information skill,followed by age and the purpose of using *** results show that the purpose of using IT and information skill are the two main aspects of information inequality of Shanghai suburban *** between individuals,especially in educational level and age,are identified as the underlying causes of the information *** limitations:Subjects in the sample were limited to those who received training in the Shanghai rural ICT training *** a sample limits the generality of the study *** implications:The study will help enhance our understanding of information inequality and find ways to reduce the ***/value:Most previous studies on information inequality were focused on theoretical *** study adds to the limited empirical research done on information inequality and also provides some insights into the ways to reduce the inequality.

关键词： Information inequality Digital divide discrete choice model

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

品牌忠诚对参照价格形成的影响

市场营销（理论版） 2010年第11期 73-83页

作者：黄劲松王高

参照价格是消费者价格判断的重要依据，而品牌忠诚对消费者的购买行为也有着显著影响。那么这两个概念之间是否存在着一定的关系呢？研究结果表明品牌忠诚对参照价格的形成有着显著地影响。品牌忠诚与非品牌忠诚的消费者采用不同的价格... 详细信息

参照价格是消费者价格判断的重要依据，而品牌忠诚对消费者的购买行为也有着显著影响。那么这两个概念之间是否存在着一定的关系呢？研究结果表明品牌忠诚对参照价格的形成有着显著地影响。品牌忠诚与非品牌忠诚的消费者采用不同的价格作为参考价，品牌忠诚的消费者倾向于使用他们喜欢的品牌价格作为参照，而非品牌忠诚的消费者倾向于使用环境价格作为参照。

关键词：参照价格品牌忠诚离散选择模型 reference price brand loyalty discrete choice model

在线全文

人大复印报刊资料

学校读者我要写书评

暂无评论

中国农村医疗保障制度的补偿模式研究*

体制改革 2009年第7期 103-115页

作者：封进李珍珍

近年来政府通过建立新型农村合作医疗制度并补贴保险费为农民提供医疗保险。政府面临的问题之一是如何确定医疗保险的补偿模式：是补偿众多一般风险还是补偿小部分重大风险。本文采用中国健康和营养调查数据，运用离散选择模型估计了农... 详细信息

近年来政府通过建立新型农村合作医疗制度并补贴保险费为农民提供医疗保险。政府面临的问题之一是如何确定医疗保险的补偿模式：是补偿众多一般风险还是补偿小部分重大风险。本文采用中国健康和营养调查数据，运用离散选择模型估计了农民的医疗需求函数，评价了新型农村合作医疗中的各种补偿模式的效果。结果表明，治疗费用、疾病特征和治疗的机会成本等因素对治疗方式的选择有显著的影响。仅仅补偿住院费用对减轻医疗负担和灾难性医疗支出的作用十分有限，将补偿范围扩大到门诊费用才能有效地抵御健康风险。本研究还估计了补贴引起的医疗费用的上涨幅度和政府补贴的规模。

关键词：合作医疗补偿模式离散选择模型 Rural Cooperative Medical System Reimbursement model discrete choice model

在线全文

人大复印报刊资料

学校读者我要写书评

暂无评论

不同类型参照产品比较和选择的研究

市场营销（理论版） 2022年第9期

作者：汪平孙鲁平张丽君

消费者选择和偏好往往是参照依赖的，即受参照产品或对比产品的影响，但消费者采用哪些产品作为参照对象通常是不可观察的。在不同的情境下，消费者采用的参照产品也可能有所不同。本研究提出的离散选择模型分别考虑了不同类型的外部参... 详细信息

消费者选择和偏好往往是参照依赖的，即受参照产品或对比产品的影响，但消费者采用哪些产品作为参照对象通常是不可观察的。在不同的情境下，消费者采用的参照产品也可能有所不同。本研究提出的离散选择模型分别考虑了不同类型的外部参照产品（即当前选择集中最偏好的产品、最不偏好的产品和平均产品）以及内部参照产品对消费者选择的影响。通过基于选择的联合分析（choice-based conjoint analysis）收集了消费者对智能手机的选择数据，并采用极大似然估计法对不同离散选择模型的参数进行了估计。研究结果表明，消费者选择决策中确实存在着显著的参照效应或比较效应，并且消费者更多地采用选择集中最偏好的产品作为参照产品。当采用最偏好产品作为参照产品时，消费者在非价格属性上的参照效应更为显著，在价格属性上的参照效应不显著。

关键词：参照产品联合分析法离散选择模型参照效应智能手机 reference product conjoint analysis discrete choice model comparison effect smart phones

关系营销中客户回报计划对客户品牌选择行为的影响研究

在线全文

人大复印报刊资料

学校读者我要写书评

暂无评论

企业管理研究 2010年第1期

作者：马宝龙李飞李金林

本研究在考虑客户间异质偏好性的基础上，利用一组客户的纵贯交易数据建立消费者离散选择模型研究了回报计划对客户个体层面品牌选择行为的影响，并利用策略实验及潜分层模型对相关问题进行了系统深入的分析。结果表明，回报计划可以有... 详细信息

本研究在考虑客户间异质偏好性的基础上，利用一组客户的纵贯交易数据建立消费者离散选择模型研究了回报计划对客户个体层面品牌选择行为的影响，并利用策略实验及潜分层模型对相关问题进行了系统深入的分析。结果表明，回报计划可以有效提升客户的品牌选择购买概率，是一种有效的关系营销策略；策略实验分析得到，竞争的环境下，对零售超市而言其最优决策策略不仅是实施回报计划，而且要努力争取客户成为自己回报计划的会员；此外，通过潜分层模型评估发现客户回报计划仅会对一类特定客户具有明显的刺激作用。最后讨论了结论对企业营销管理实践的意义。

关键词：客户回报计划品牌选择离散选择模型 customer reward programs brand choice discrete choice model