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Split-step spectral Galerkin method for the two-dimensional nonlinear space-fractional Schrödinger equation EI Scopus SCIE
期刊论文 | 2019 , 136 , 257-278 | Applied Numerical Mathematics
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Abstract :

© 2018 IMACS In this paper, we propose a highly accurate and conservative split-step spectral Galerkin (SSSG) scheme, which combines the standard second-order Strang split-step method for handling the nonlinear and the potential terms with the Legendre spectral Galerkin method for approximating the Riesz space-fractional derivatives, for the two-dimensional nonlinear space-fractional Schrödinger equation. The mass conservation property of the numerical solution is proved and the optimal error estimate with respect to spatial discretization is established by introducing an orthogonal projection operator. In addition, a matrix diagonalization technique is introduced to resolve the multi-dimensional difficulty and reduce the computational complexity in the implementation. Numerical experiments are presented to illustrate the accuracy and robustness of the SSSG method.

Keyword :

Mass conservation Matrix diagonalization method Spectral Galerkin method Split-step method Two-dimensional nonlinear space-fractional Schrödinger equation

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GB/T 7714 Wang, Ying , Mei, Liquan , Li, Qi et al. Split-step spectral Galerkin method for the two-dimensional nonlinear space-fractional Schrödinger equation [J]. | Applied Numerical Mathematics , 2019 , 136 : 257-278 .
MLA Wang, Ying et al. "Split-step spectral Galerkin method for the two-dimensional nonlinear space-fractional Schrödinger equation" . | Applied Numerical Mathematics 136 (2019) : 257-278 .
APA Wang, Ying , Mei, Liquan , Li, Qi , Bu, Linlin . Split-step spectral Galerkin method for the two-dimensional nonlinear space-fractional Schrödinger equation . | Applied Numerical Mathematics , 2019 , 136 , 257-278 .
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隐私计算与社会资本对移动社交用户自我披露意愿的影响研究——基于微信与微博的比较分析 CSSCI-C PKU
期刊论文 | 2018 , (5) , 169-175 | 情报杂志
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Abstract :

[目的/意义]移动社交平台的发展必须基于大量的用户信息与数据,随着用户对个人信息安全的不断关注,研究移动社交用户的自我披露意愿及其影响因素对移动社交平台的发展十分关键.[方法/过程]基于隐私计算理论和社会资本理论,构建了移动社交平台隐私披露意愿的影响因素模型.通过调查问卷收集了微信和新浪微博两个不同移动社交平台的数据,利用结构方程模型进行路径分析,比较不同因素对两类平台的影响差异.[结果/结论]研究发现:在微信和微博环境下,隐私计算和社会资本对用户自我披露意愿的影响路径存在差异;感知风险和收益对用户在社交平台中的信任、互惠感和社区认同感的影响路径存在差异;用户的信任正向影响互惠感和社区认同感,但在微信和微博环境下的路径系数有所差异.

Keyword :

移动社交平台 社会资本 微博 隐私计算 自我披露 微信

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GB/T 7714 李琪 , 王璐瑶 , 乔志林 . 隐私计算与社会资本对移动社交用户自我披露意愿的影响研究——基于微信与微博的比较分析 [J]. | 情报杂志 , 2018 , (5) : 169-175 .
MLA 李琪 et al. "隐私计算与社会资本对移动社交用户自我披露意愿的影响研究——基于微信与微博的比较分析" . | 情报杂志 5 (2018) : 169-175 .
APA 李琪 , 王璐瑶 , 乔志林 . 隐私计算与社会资本对移动社交用户自我披露意愿的影响研究——基于微信与微博的比较分析 . | 情报杂志 , 2018 , (5) , 169-175 .
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我国消费者支付宝钱包使用意向研究——基于TAM和IDT理论 CSSCI-C PKU
期刊论文 | 2018 , (1) , 23-29 | 大连理工大学学报(社会科学版)
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Abstract :

支付宝钱包是我国移动支付的主要工具之一.文章以技术接受理论和创新扩散理论为基础,结合感知信任和感知风险,构建支付宝钱包消费者使用意愿研究模型,并通过调查问卷收集数据,利用SPSS21.0和AMOS21.0进行数据处理和假设检验.研究结果表明:感知易用性、感知有用性、感知信任均显著影响消费者的使用态度;相容性和外部因素是感知有用性和感知易用性的主要影响因素;个人创新性正向影响消费者信任;感知风险负向影响消费者信任;消费者的使用态度能够显著正向影响消费者的使用意愿.

Keyword :

使用意向 TAM IDT 移动支付 支付宝钱包

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GB/T 7714 李琪 , 殷猛 , 孙乔 . 我国消费者支付宝钱包使用意向研究——基于TAM和IDT理论 [J]. | 大连理工大学学报(社会科学版) , 2018 , (1) : 23-29 .
MLA 李琪 et al. "我国消费者支付宝钱包使用意向研究——基于TAM和IDT理论" . | 大连理工大学学报(社会科学版) 1 (2018) : 23-29 .
APA 李琪 , 殷猛 , 孙乔 . 我国消费者支付宝钱包使用意向研究——基于TAM和IDT理论 . | 大连理工大学学报(社会科学版) , 2018 , (1) , 23-29 .
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网络购物节氛围对消费者冲动购物行为的刺激作用 CSSCI-C PKU
期刊论文 | 2018 , (7) , 18-23 | 商业研究
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在网络交易环境下创造有感染力的消费购物氛围是重要的营销战略,本文以SOR理论为基础,将构成购物节氛围的外部刺激因素分为互动性、 个性化、 娱乐性和经济性四个维度,通过构建网络购物节氛围影响消费者冲动购物行为的研究模型分析网络购物节氛围下消费者的冲动购物行为.研究发现,购物节氛围的个性化、 娱乐性和经济性显著正向影响消费者唤醒情绪,互动性、 娱乐性和经济性显著正向影响消费者愉悦情绪;唤醒情绪显著影响消费者的愉悦感知,并与愉悦感知共同显著影响消费者的冲动购物行为.

Keyword :

SOR模型 购物节氛围 冲动购物行为 购物节

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GB/T 7714 刘洋 , 李琪 , 殷猛 . 网络购物节氛围对消费者冲动购物行为的刺激作用 [J]. | 商业研究 , 2018 , (7) : 18-23 .
MLA 刘洋 et al. "网络购物节氛围对消费者冲动购物行为的刺激作用" . | 商业研究 7 (2018) : 18-23 .
APA 刘洋 , 李琪 , 殷猛 . 网络购物节氛围对消费者冲动购物行为的刺激作用 . | 商业研究 , 2018 , (7) , 18-23 .
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移动团购的持续使用意愿研究——ECM与IS成功理论的比较与整合研究 CSSCI-C PKU
期刊论文 | 2018 , (2) , 53-61 | 现代情报
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移动团购发展迅速,用户的持续使用意愿是移动团购发展和竞争的关键,ECM、IS成功理论以及两者整合研究是持续使用意愿的主要方式,哪个模型对用户的持续使用意愿解释力度更强是本文研究的主要问题.本文以移动团购为研究对象,基于ECM和IS成功理论比较和整合研究用户的持续使用意愿,构建研究模型.通过调查问卷收集数据,使用SPSS和Smat PLS分析数据,进行假设检验.研究发现ECM、IS成功理论以及两者整合研究模型均适用于持续使用意愿研究,且ECM对于满意度和持续使用意愿的解释力度均大于IS成功理论,而整合理论的解释度最强,整合研究模型更适合于研究用户的持续使用行为.移动团购的满意度受到期望确认、感知有用性和系统质量、服务质量的影响,且期望确认以及感知有用性的影响作用更大,而信息质量的影响作用不显著.

Keyword :

持续使用意愿 ECM 移动团购 IS成功理论

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GB/T 7714 李琪 , 李欣 , 殷猛 . 移动团购的持续使用意愿研究——ECM与IS成功理论的比较与整合研究 [J]. | 现代情报 , 2018 , (2) : 53-61 .
MLA 李琪 et al. "移动团购的持续使用意愿研究——ECM与IS成功理论的比较与整合研究" . | 现代情报 2 (2018) : 53-61 .
APA 李琪 , 李欣 , 殷猛 . 移动团购的持续使用意愿研究——ECM与IS成功理论的比较与整合研究 . | 现代情报 , 2018 , (2) , 53-61 .
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乡村振兴背景下农民增收保障机制与政策研究 ——基于文献研究的分析
期刊论文 | 2018 , (4) , 69-74 | 淮阴工学院学报
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农民增收是实现乡村振兴战略的重要保证.通过对已有文献的梳理与分析,认为农民收入问题已经成为全面建成小康社会的瓶颈;农民收入增加及其增加幅度是检验改革成效的重要尺度,已成为农村发展研究的热点问题.研究分析表明:构建农村产业生态是农民增收的根本依托;发展农村金融是农村产业发展的显著支撑点;发展农村电商是农村产业的重要方向;同时,系统性的农民增收保障机制和政策支撑体系是加快推进乡村振兴战略的重要基础.

Keyword :

乡村振兴 农民增收 政策机制

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GB/T 7714 储新民 , 李琪 . 乡村振兴背景下农民增收保障机制与政策研究 ——基于文献研究的分析 [J]. | 淮阴工学院学报 , 2018 , (4) : 69-74 .
MLA 储新民 et al. "乡村振兴背景下农民增收保障机制与政策研究 ——基于文献研究的分析" . | 淮阴工学院学报 4 (2018) : 69-74 .
APA 储新民 , 李琪 . 乡村振兴背景下农民增收保障机制与政策研究 ——基于文献研究的分析 . | 淮阴工学院学报 , 2018 , (4) , 69-74 .
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How using of WeChat impacts individual loneliness and health? EI Scopus
会议论文 | 2018 , 10983 LNCS , 142-153
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© Springer Nature Switzerland AG 2018. WeChat has been developed as the popular social media in China, and enables people to break the limits of time and space, give and obtain variety of social supports. In order to research the influence of social support on individual health, this study constructed a research model based on social support theory and loneliness. Data were collected through questionnaire and analyzed by SPSS and Smart PLS. Research results showed that informational support and network support during the WeChat usage can significantly influence users’ perceived health. In addition, informational support, emotional support, and network support can significantly reduce the perceived loneliness. Network support exerts the strongest influence on perceived loneliness. Finally, the perceived loneliness significantly reduces the perceived health.

Keyword :

Loneliness Perceived health Social support WeChat

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GB/T 7714 Yin, Meng , Li, Qi , Xu, Xiaoyu . How using of WeChat impacts individual loneliness and health? [C] . 2018 : 142-153 .
MLA Yin, Meng et al. "How using of WeChat impacts individual loneliness and health?" . (2018) : 142-153 .
APA Yin, Meng , Li, Qi , Xu, Xiaoyu . How using of WeChat impacts individual loneliness and health? . (2018) : 142-153 .
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The impact of informational incentives and social influence on consumer behavior during Alibaba's online shopping carnival EI SSCI Scopus
期刊论文 | 2017 , 76 , 245-254 | COMPUTERS IN HUMAN BEHAVIOR | IF: 3.536
WoS CC Cited Count: 7 SCOPUS Cited Count: 6
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Alibaba's annual global online shopping carnival (OSC) held every November 11 (also known as Double 11 Day or Single's Day) is well known for being the most successful and largest online promotion campaign since its Chinese debut in 2009. We have witnessed the power of online herd behavior exhibited by a frenzy of consumers purchasing, sharing and interacting with each other during Alibaba's global OSC. This shopping carnival brought the entire Chinese electronic commerce industry an astonishing record volume of transactions worth 120.7 billion RMB and 1.04 billion transactions on Singles' Day in 2016. This study explores what facilitates consumer OSC behavior on Singles' Day. Drawing upon carnival theory and herd behavior, we develop an explanatory model to explain how informational incentives and social influence affect OSC consumer behavior. Data gathered from a large-scale online survey of consumers that participated during the Singles' Day period is used to test the model. The conceptual model was validated using the partial least squares (PLS) technique. The empirical results show that (1) participation, interaction and pleasure together define OSC consumer behavior; (2) informational incentives and social influence are two crucial preconditions for OSC consumer behavior. The results provide good support for the proposed research model and hypotheses and yield interesting insights about the important roles of informational incentives and social influence collectively facilitating OSC consumer behavior during the Singles' Day period in China. (C) 2017 Published by Elsevier Ltd.

Keyword :

Electronic commerce Herd behavior Online shopping carnival Singles' day

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GB/T 7714 Xu, Xiaoyu , Li, Qi , Peng, Lifang et al. The impact of informational incentives and social influence on consumer behavior during Alibaba's online shopping carnival [J]. | COMPUTERS IN HUMAN BEHAVIOR , 2017 , 76 : 245-254 .
MLA Xu, Xiaoyu et al. "The impact of informational incentives and social influence on consumer behavior during Alibaba's online shopping carnival" . | COMPUTERS IN HUMAN BEHAVIOR 76 (2017) : 245-254 .
APA Xu, Xiaoyu , Li, Qi , Peng, Lifang , Hsia, Tzyh-Lih , Huang, Chih-Jung , Wu, Jen-Her . The impact of informational incentives and social influence on consumer behavior during Alibaba's online shopping carnival . | COMPUTERS IN HUMAN BEHAVIOR , 2017 , 76 , 245-254 .
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Correlating Stressor Events for Social Network Based Adolescent Stress Prediction EI CPCI-S Scopus
会议论文 | 2017 , 10177 , 642-658 | 22nd International Conference on Database Systems for Advanced Applications (DASFAA)
SCOPUS Cited Count: 1
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The increasingly severe psychological stress damages our mental health in this highly competitive society, especially for immature teenagers who cannot settle stress well. It is of great significance to predict teenagers' psychological stress in advance and prepare targeting help in time. Due to the fact that stressor events are the source of stress and impact the stress progression, in this paper, we give a novel insight into the correlation between stressor events and stress series (stressor-stress correlation, denotes as SSC) and propose a SSC-based stress prediction model upon microblog platform. Considering both linguistic and temporal correlations between stressor series and stress series, we first quantify the stressor-stress correlation with KNN method. Afterward, a dynamic NARX recurrent neural network is constructed to integrate such impact of stressor events for teens' stress prediction in future episode. Experiment results on the real data set of 124 high school students verify that our prediction framework achieves promising performance and outperforms baseline methods. Integrating the correlation of stressor events is proved to be effective in stress prediction, significantly improving the average prediction accuracy.

Keyword :

Microblog Stress Prediction Stressor events Correlation

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GB/T 7714 Li, Qi , Zhao, Liang , Xue, Yuanyuan et al. Correlating Stressor Events for Social Network Based Adolescent Stress Prediction [C] . 2017 : 642-658 .
MLA Li, Qi et al. "Correlating Stressor Events for Social Network Based Adolescent Stress Prediction" . (2017) : 642-658 .
APA Li, Qi , Zhao, Liang , Xue, Yuanyuan , Jin, Li , Alli, Mostafa , Feng, Ling . Correlating Stressor Events for Social Network Based Adolescent Stress Prediction . (2017) : 642-658 .
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基于调节定向理论的在线评论感知有用性差异研究 CSSCI-C PKU
期刊论文 | 2017 , (3) , 61-66 | 大连理工大学学报(社会科学版)
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基于调节定向理论,引入调节定向变量,运用实验情境设计的方法,验证了评论效价和评论质量对消费者感知有用性的影响受到调节定向类型的作用.结果显示,对于促进定向消费者,正面或低质量的在线评论信息感知有用性更高;相反,对于预防定向消费者,负面或高质量的在线评论信息感知有用性更高,且正面高质量和负面低质量评论信息对不同调节定向类型消费者的感知有用性差异不显著.

Keyword :

感知有用性 评论质量 评论效价 调节定向理论

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GB/T 7714 李琪 , 任小静 . 基于调节定向理论的在线评论感知有用性差异研究 [J]. | 大连理工大学学报(社会科学版) , 2017 , (3) : 61-66 .
MLA 李琪 et al. "基于调节定向理论的在线评论感知有用性差异研究" . | 大连理工大学学报(社会科学版) 3 (2017) : 61-66 .
APA 李琪 , 任小静 . 基于调节定向理论的在线评论感知有用性差异研究 . | 大连理工大学学报(社会科学版) , 2017 , (3) , 61-66 .
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