检索结果-南通市图书馆

A COUPLED DYNAMIC MODEL OF BRAND ACCEPTANCE AND PROMOTIVE INFORMATION SPREADING

Journal of Systems Science and Systems Engineering 2018年第5期27卷 677-689页

作者： Qian Pan haoxiang xia Shuangling Luo Institute of Systems Engineering Dalian University of Technology 116024 China College of Shipping Economics andManagement & Collaborative Innovation Center for Transport Studies

When people try to decide to buy or not to, they are often influenced by both their inherentopinions and the social marketing activities e.g. advertising, social news with strong point of *** people will make their final choice, or even convince other people to buy. After all, this is thebrand acceptance formation process. Factually, the dynamics of brand acceptance is essentially aninterwoven dynamics of endogenous opinion dynamics disturbed by an information diffusion *** have a better understanding of the dynamics of brand acceptance, we propose and analyze a coupledagent-based dynamic model that combines the Majority-Rule-based Voter model in opinion dynamicswith the SI Model for information spreading to analyze the dynamics of brand acceptance in socialmedia. We focus on two important parameters in diffusion dynamics： the decayed transmission rate （fl）and the diffusion frequency （f）. When the system is stable, the order parameter of the system is theduration time （r）. In the absence of opinion interaction, the simulation results indicate that, when abrand tries to occupy a larger market share through social marketing approaches, it is always effectiveto let the opponent to be the propaganda target. While with the Majority-Rule-based Voter Modelincluded, we observe that the opinion interaction could have a dual function, which shows that a brandholding a small market share in the first place needs to adopt diverse marketing approaches accordingto different marketing environment types.

关键词： Coupled dynamics social marketing dynamics of brand acceptance opinion dynamics diffusion dynamics

来源：

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

SOCIAL TAGGING DYNAMICS UNDER SYSTEM RECOMMENDATION AND RESOURCE MULTIDIMENSIONALITY

引用

Journal of Systems Science and Systems Engineering 2016年第3期25卷 271-286页

作者： haoxiang xia xiaowei Zhao Huiyu Liu Institute of Systems Engineering Dalian University of Technology Dalian 116024 China School of Software Technology Dalian University of Technology Dalian 116620 China Dalian Branch of China Unicorn Ltd. Dalian 116001 China

Social tagging systems have attracted plenty of research endeavors recently. The dynamic models of tag generation or tag usage are one of the key subjects of inquiry. However, the existing models do not well explain the ＂staged＂ power-law distribution of tag usage frequencies as observed in various social tagging systems. To cope with this, a new tag-generation model is proposed in this paper, which is based on a preferential selection mechanism influenced by the combinatorial effects of system recommendation and resource multidimensionality. Furthermore, to validate the model, the simulative results under different parameter combinations are compared with the distributions of tag usage frequencies in datasets from three famous social tagging systems, namely ***, *** and Flickr. For different categories of resources of the three systems, three tag usage patterns can be identified, namely the power-law distribution with two plateaus, the power-law distribution with one plateau, and the standard power-law distribution. All the three patterns can be well fitted and explained by the proposed model.

关键词： Social tagging systems tag usage patterns dynamic model

来源：

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

TOWARD COLLECTIVE INTELLIGENCE OF ONLINE COMMUNITIES:A PRIMITIVE CONCEPTUAL MODEL

引用

Journal of Systems Science and Systems Engineering 2009年第2期18卷 203-221页

作者： Shuangling LUO haoxiang xia Taketoshi YOSHIDA Zhongtuo WANG School of Knowledge Science Japan Advanced Institute of Science and Technology lshikawa 923-1292 Japan Institute of Systems Engineering Dalian University of Technology Dalian 116024 China

Inspired by the ideas of Swarm Intelligence and the ＂global brain＂, a concept of ＂community intelligence＂ is suggested in the present paper, reflecting that some ＂intelligent＂ features may emerge in a Web-mediated online community from interactions and knowledge-transmissions between the community members. This possible research field of community intelligence is then examined under the backgrounds of ＂community＂ and ＂intelligence＂ researches. Furthermore, a conceptual model of community intelligence is developed from two views. From the structural view, the community intelligent system is modeled as a knowledge supernetwork that is comprised of triple interwoven networks of the media network, the human network, and the knowledge network. Furthermore, based on a dyad of knowledge in two forms of ＂knowing＂ and ＂knoware＂, the dynamic view describes the basic mechanics of the formation and evolution of ＂community intelligence＂. A few relevant research issues are shortly discussed on the basis of the proposed conceptual model.

关键词： Community intelligence online community knowledge supernetwork knowing knoware

来源：

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

A MODIFIED ANT-BASED TEXT CLUSTERING ALGORITHM WITH SEMANTIC SIMILARITY MEASURE

引用

Journal of Systems Science and Systems Engineering 2006年第4期15卷 474-492页

作者： haoxiang xia Shuguang WANG Taketoshi YOSHIDA Institute of Systems Engineering Dalian University of Technology Dalian 116024 China BHR-Frontline Technologies (Dalian) Corporation Ltd Dalian 116023 China School of Knowledge Science Japan Advanced Institute of Science and Technology lshikawa 923-1292 Japan

Ant-based text clustering is a promising technique that has attracted great research attention. This paper attempts to improve the standard ant-based text-clustering algorithm in two dimensions. On one hand, the ontology-based semantic similarity measure is used in conjunction with the traditional vector-space-model-based measure to provide more accurate assessment of the similarity between documents. On the other, the ant behavior model is modified to pursue better algorithmic performance. Especially, the ant movement rule is adjusted so as to direct a laden ant toward a dense area of the same type of items as the ant＇s carrying item, and to direct an unladen ant toward an area that contains an item dissimilar with the surrounding items within its Moore neighborhood. Using WordNet as the base ontology for assessing the semantic similarity between documents, the proposed algorithm is tested with a sample set of documents excerpted from the Reuters-21578 corpus and the experiment results partly indicate that the proposed algorithm perform better than the standard ant-based text-clustering algorithm and the k-means algorithm.

关键词： Ant-based clustering text clustering ant movement rule semantic similarity measure

来源：

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

Influence of Strategy Continuity on Cooperation in Spatial Prisoner’s Dilemma Games with Migrating Players

引用

Wuhan University Journal of Natural Sciences 2018年第1期23卷 1-8页

作者： ZHAO xiaowei xia haoxiang Institute of Systems Engineering Dalian University of Technology Dalian 116024 Liaoning China School of Software Technology Dalian University of Technology Dalian 116620 Liaoning China

The phenomenon of cooperation is prevalent in both nature and human society. In this paper a simulative model is developed to examine how the strategy continuity influences cooperation in the spatial prisoner＇s games in which the players migrate through the success-driven migration mechanism. Numerical simulations illustrate that the strategy continuity promotes cooperation at a low rate of migration, while impeding cooperation when the migration rate is higher. The influence of strategy continuity is also dependent on the game types. Through a more dynamic analysis, the different effects of the strategy continuity at low and high rates of migration are explained by the formation, expansion, and extinction of the self-assembled clusters of ＂partial-cooperators＂ within the gaming population.

关键词： evolution of cooperation continuous strategies spatial prisoner's dilemma game migration

来源：

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

Mobility Pattern of Taxi Passengers at Intra-Urban Scale:Empirical Study of Three Cities

引用

Journal of Systems Science and Information 2017年第6期8卷 537-555页

作者： Mengqiao XU Ling ZHANG Wen LI haoxiang xia Faculty of Management and Economics Dalian University of TechnologyDalian 116024China

The study of human mobility patterns is of both theoretical and practical values in many aspects. For long-distance travel, a few research endeavors have shown that the displacements of human travels follow a power-law distribution. However, controversies remain regarding the issue of the scaling laws of human mobility in intra-urban areas. In this work, we focus on the mobility pattern of taxi passengers by examining five datasets of three metropolitans. Through statistical analysis, we find that the lognormal distribution with a power-law tail can best approximate both the displacement and the duration time of taxi trips in all the examined cities. The universality of the scaling laws of human mobility is subsequently discussed, in view of the analysis of the data. The consistency of the statistical properties of the selected datasets that cover different cities and study periods suggests that, the identified pattern of taxi-based intra-urban travels seems to be ubiquitous over cities and time periods.

关键词： human mobility pattern taxi travel displacements duration time

来源：

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

OpenStack开源软件开发者协作网络分析

引用

系统工程理论与实践 2017年第5期37卷 1373-1382页

作者：夏昊翔张潇张醒洲大连理工大学系统工程研究所大连116024

以著名的开源云计算平台OpenStack项目为例研究大型开源软件的开发.以该项目Git提交数据中父子哈希码关系为基础构筑代码协作修订网络,分析其结构与演化.并在此基础上探究OpenStack项目的内在的自发组织模式和人员集体工作模式.研究结... 详细信息

以著名的开源云计算平台OpenStack项目为例研究大型开源软件的开发.以该项目Git提交数据中父子哈希码关系为基础构筑代码协作修订网络,分析其结构与演化.并在此基础上探究OpenStack项目的内在的自发组织模式和人员集体工作模式.研究结果表明,OpenStack的开发可以看作一个具有稳定的中央节点群的网络型系统的集体知识创造活动.核心开发人员在其中起主导作用,但一般开发人员从开发总工作量上是整个项目的主体.OpenStack的子项目与社区演化具有显著关联性.开发人员的工作领域呈现高度的集中性和持续稳定性.研究结果对于理解大型开源软件项目的自组织型开发人员协作结构的形成和演化,及大规模群体的社会化创新活动模式具有参考意义.

关键词： OpenStack 代码协作修订网络社区结构社区演化探索式数据分析

来源：

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

Reversible phase transition poly(benzyl methacrylate)/ionic liquid electrolytes for effective overheating protection in lithium batteries

引用

Journal of Energy Chemistry 2025年第2期101卷 76-86页

作者： Qian Yu Wei Sun Jialing Zhu haoxiang Li Shuai Wang Longqing Huang Qian Qiu Haoran Tian He Miao Fu Wang Chunfei Zhang Jinliang Yuan Lan xia Ningbo Innovation Team on New Energies and Marine Applications Faculty of Maritime and Transportation Ningbo University Technical University of Munich TUM School of Natural Sciences Department of Physics Chair for Functional Materials

Battery safety is influenced by various factors,with thermal runaway being one of the most significant *** most studies have concentrated on developing one-time,self-activating mechanism for thermal protection,such as temperature-responsive electrodes,and thermal-shutdown separators,these methods only provide irreversible ***,reversible temperature-sensitive electrolytes have emerged as promising alternatives,offering both thermo-reversibility and self-protective ***,further research is crucial to fully understand these thermal-shutdown *** this study,we propose lower critical solution temperature(LCST) phase behavior poly(benzyl methacrylate)/imidazolium-based ionic liquid mixtures to prepare temperature-sensitive electrolytes that provide reversible thermal shutdown protection of *** electrolyte features an appropriate protection temperature(～105℃) and responds quickly within a 1 min at 105℃,causing cells to hardly discharge as the voltage suddenly drops to 3.38 V,and providing efficient thermal shutdown protection within 30 *** cooling back to room temperature,the battery regains its original ***,the electrolyte exhibits excellent cycling stability with the capacity retention of the battery is 91.6% after 500 *** work provides a viable solution for preventing batteries from thermal runaway triggered by overheating.

关键词： Ionic liquid Lithium-ion battery Lower critical solution temperature Overheating Safety Thermal runaway

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

跨学科研究领域的合著网络演化分析——以“复杂网络”研究领域为例

引用

情报杂志 2015年第9期34卷 85-91页

作者：刘鹏夏昊翔大连理工大学系统工程研究所大连116024

已有研究对合著网络的结构与演化展开了广泛探讨,然而,针对跨学科研究领域合著网络的分析相对较少。对此,本文通过检索CSSCI(Chinese Social Sciences Citation Index)中与"复杂网络"相关文献数据,并采用社会网络分析方法对年份累积合... 详细信息

已有研究对合著网络的结构与演化展开了广泛探讨,然而,针对跨学科研究领域合著网络的分析相对较少。对此,本文通过检索CSSCI(Chinese Social Sciences Citation Index)中与"复杂网络"相关文献数据,并采用社会网络分析方法对年份累积合著网络结构及演化进行了分析。研究结果表明合著网络演化主要经历三个阶段:由最初的分散状态逐渐形成"链式"最大连通子图,随后最大连通子图演化形成多社区的"小世界"网络。此外,合著网络的演化伴随着研究主题由分散到汇聚的变化过程。本研究有助于进一步理解跨学科研究领域合著网络的结构及演化模式,并对已有的科研合作网络演化研究形成很好的补充。

关键词：合著网络最大连通子图结构演化小世界网络社会网络分析

来源：

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

科研合作网络中团队成员对创新团队演化的影响:以机器学习领域为例

引用

大连理工大学学报（社会科学版） 2022年第1期43卷 60-68页

作者：赵伟夏昊翔大连理工大学经济管理学院辽宁大连116024

以上海交通大学发布的学术知识图谱(AceKG)作为数据源,运用优化过关系衰退的派系过滤法(CPM)发现时分科研合作网络中的创新团队演化路径。提出团队在演化过程中的7种事件及团队中成员的3种分类,经过分析发现:短期参与者是影响团队规模... 详细信息

以上海交通大学发布的学术知识图谱(AceKG)作为数据源,运用优化过关系衰退的派系过滤法(CPM)发现时分科研合作网络中的创新团队演化路径。提出团队在演化过程中的7种事件及团队中成员的3种分类,经过分析发现:短期参与者是影响团队规模的重要因素,团队中的持续参与者与团队生存期相关。文章最后提出了一种利用移动平均法预测团队消亡的方法。根据以上发现,科研工作者为了更好地完成研究工作,可以根据工作的性质,有目的地选择成员,达到控制团队规模和团队的生存期趋势的目的。

关键词：派系过滤法关系衰退演化路径移动平均

来源：

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

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：