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Split-step spectral Galerkin method for the two-dimensional nonlinear space-fractional Schrödinger equation Scopus
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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How using of WeChat impacts individual loneliness and health? Scopus
会议论文 | 2018 , 10983 LNCS , 142-153
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Abstract :

© 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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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)
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Abstract :

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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Abstract :

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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社交商务情景下信任对购买决策的影响变化研究 CSSCI-C PKU
期刊论文 | 2017 , (2) , 113-116 | 软科学
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Abstract :

社交购物中,产品功利价值感知和基于社交平台的享乐价值感知是决定消费者购买与否的最主要因素.而卖家信任对消费者购买意愿的影响作用会随情况不同发生变化甚至消失:当消费者与卖家的关系亲密程度较低或消费者已有购买意愿较弱时,信任能显著提高购买意愿;但在买卖双方社会关系较好或消费者已经形成较强的购买意愿的情况下,信任的影响作用会消失,即信任会影响最初决策过程的购买意愿,但不会影响立即购买决策.

Keyword :

卖家信任 感知价值 社交购物意愿 人际关系

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GB/T 7714 阮燕雅 , 李琪 . 社交商务情景下信任对购买决策的影响变化研究 [J]. | 软科学 , 2017 , (2) : 113-116 .
MLA 阮燕雅 et al. "社交商务情景下信任对购买决策的影响变化研究" . | 软科学 2 (2017) : 113-116 .
APA 阮燕雅 , 李琪 . 社交商务情景下信任对购买决策的影响变化研究 . | 软科学 , 2017 , (2) , 113-116 .
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社交商务情景下信任对购买决策的影响变化研究 CSSCI-C PKU
期刊论文 | 2017 , (2) | 软科学
Abstract&Keyword Cite

Abstract :

社交购物中,产品功利价值感知和基于社交平台的享乐价值感知是决定消费者购买与否的最主要因素。而卖家信任对消费者购买意愿的影响作用会随情况不同发生变化甚至消失:当消费者与卖家的关系亲密程度较低或消费者已有购买意愿较弱时,信任能显著提高购买意愿;但在买卖双方社会关系较好或消费者已经形成较强的购买意愿的情况下,信任的影响作用会消失,即信任会影响最初决策过程的购买意愿,但不会影响立即购买决策。

Keyword :

卖家信任 感知价值 社交购物意愿 人际关系

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GB/T 7714 阮燕雅 , 李琪 . 社交商务情景下信任对购买决策的影响变化研究 [J]. | 软科学 , 2017 , (2) .
MLA 阮燕雅 et al. "社交商务情景下信任对购买决策的影响变化研究" . | 软科学 2 (2017) .
APA 阮燕雅 , 李琪 . 社交商务情景下信任对购买决策的影响变化研究 . | 软科学 , 2017 , (2) .
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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) | 大连理工大学学报:社会科学版
Abstract&Keyword Cite

Abstract :

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) .
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) .
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) .
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The stock market effect of air pollution: evidence from China SSCI Scopus
期刊论文 | 2016 , 48 (36) , 3442-3461 | APPLIED ECONOMICS | IF: 0.648
WoS CC Cited Count: 5
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Abstract :

In financial studies, environmental stimuli such as sunshine, temperature, and daylight are often used as proxies for people's collective mood swings to test their effects on the stock market. China has experienced serious air pollution problems in recent years, and Chinese public awareness of air pollution has soared. In this paper, we use China as a natural experiment to investigate the effect on stock returns of depressed moods induced by air pollution. Daily air-pollution data from 2005 to 2014 are analysed and the results obtained from the empirical research show that a contemporaneous negative and a two-day lagged positive relationship exists between air pollution levels and stock returns over this time period. The relationship is mediated by the influence of air pollution on investment decisions. The results also indicate that the effect is weakened for companies that protect air quality, but no stronger effect is detected for polluting companies. The findings imply that air pollution is a behavioural factor with some connection to stock returns in China.

Keyword :

investor mood stock returns behavioural finance China stock market Air pollution

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GB/T 7714 Li, Q. , Peng, C. H. . The stock market effect of air pollution: evidence from China [J]. | APPLIED ECONOMICS , 2016 , 48 (36) : 3442-3461 .
MLA Li, Q. et al. "The stock market effect of air pollution: evidence from China" . | APPLIED ECONOMICS 48 . 36 (2016) : 3442-3461 .
APA Li, Q. , Peng, C. H. . The stock market effect of air pollution: evidence from China . | APPLIED ECONOMICS , 2016 , 48 (36) , 3442-3461 .
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Falling in Love with Online Shopping Carnival on Singles' Day in China CPCI-S
会议论文 | 2016 , 457-462 | 15th IEEE/ACIS International Conference on Computer and Information Science (ICIS)
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Based upon the theoretical perspective from Uses and Gratifications (U&G) theory, this study develops a nomological model to explain how incentivized gamification, hedonic presence, individual needs and platform synergy affect consumer active participation in the phenomena of online shopping carnival on singles' day in China. Data gathered from online shopping consumers in China through a large-scale online survey is used to test the proposed hypotheses. The research model was validated using the PLS technique. The empirical results show that (1) the consumers' active participation in online shopping carnival (OSC) facilitated by their engagement in online shopping are contributed collectively by incentivized gamification, hedonic presence, individual needs and platform synergy; (2) individual needs and platform synergy enhances consumer active participation in OSC; (3) incentivized gamification and hedonic presence have salient causal effects on consumers' individual needs and their perceptions on platform synergy. Our findings highlight the important roles of consumers' individual needs and their perceptions on platform synergy in mediating the effects of incentivized gamification and hedonic presence on online consumers' active participation.

Keyword :

hedonic presence Singles' day platform synergy incentivized gamification active participation

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GB/T 7714 Wu, Jen-Her , Li, Qi , Peng, Lifang et al. Falling in Love with Online Shopping Carnival on Singles' Day in China [C] . 2016 : 457-462 .
MLA Wu, Jen-Her et al. "Falling in Love with Online Shopping Carnival on Singles' Day in China" . (2016) : 457-462 .
APA Wu, Jen-Her , Li, Qi , Peng, Lifang , Chen, Yi-Cheng . Falling in Love with Online Shopping Carnival on Singles' Day in China . (2016) : 457-462 .
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Alibaba's IT platform and electronic commerce synergy in driving "Singles' Day" SCIE Scopus
期刊论文 | 2016 , 26 (3) , 193-202 | JOURNAL OF ORGANIZATIONAL COMPUTING AND ELECTRONIC COMMERCE | IF: 0.579
WoS CC Cited Count: 4
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Abstract :

Global electronic commerce (ecommerce) development is growing exponentially, especially in the business-to-consumer (B2C) field. Consumers in the Asia-Pacific region have spent more on ecommerce purchases in 2014 than consumers in North America, making them the largest regional ecommerce market in the world. Singles' Day on November 11 (also known as Double 11 Day or Chinese National Ecommerce Day) is the most successful online shopping day in China. What drives the success of Singles' Day? We conducted in-depth interviews with Alibaba senior managers, observed the progress of Singles' Day, and investigated this issue. We find that over the past six years, Alibaba has successfully implemented five critical strategies associated with value activities from identifying merchants and pricing, marketing and sales, payments, and outbound logistics. Along with these strategies, Alibaba has created a synergistic IT platform to connect consumers, merchants, and service providers through identifying merchants and pricing, marketing and sales, payments, and outbound logistics to facilitate value creation by increasing efficiency in their value activities and expanding the market base. These successes have driven the interest of Chinese consumers to its annual shopping carnival on Singles' Day, changing consumer shopping from traditional stores to online sites and creating the miracle of the Chinese National Ecommerce Day.

Keyword :

Singles' Day electronic commerce synergistic IT platform business-to-consumer Alibaba social networks incentivized gamification

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GB/T 7714 Wu, Jen-Her , Li, Qi , Wei, Kwok Kee . Alibaba's IT platform and electronic commerce synergy in driving "Singles' Day" [J]. | JOURNAL OF ORGANIZATIONAL COMPUTING AND ELECTRONIC COMMERCE , 2016 , 26 (3) : 193-202 .
MLA Wu, Jen-Her et al. "Alibaba's IT platform and electronic commerce synergy in driving "Singles' Day"" . | JOURNAL OF ORGANIZATIONAL COMPUTING AND ELECTRONIC COMMERCE 26 . 3 (2016) : 193-202 .
APA Wu, Jen-Her , Li, Qi , Wei, Kwok Kee . Alibaba's IT platform and electronic commerce synergy in driving "Singles' Day" . | JOURNAL OF ORGANIZATIONAL COMPUTING AND ELECTRONIC COMMERCE , 2016 , 26 (3) , 193-202 .
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