社会网络联系与用户创新研究

传统社会网络理论认为,创新用户间的社会网络联系有利于提升用户创新绩效,但在考虑社会网络成本前提下,不同质量水平的社会网络联系对用户创新绩效具有不同影响。选取乐高开放式创新平台为典型案例,编写爬虫程序获取平台客观数据,通过构建创新用户社会网络,实证检验高质量和低质量社会网络联系对用户创新的异质性影响。结果发现,创新用户拥有的社会网络联系总数对用户创新绩效无显著影响,社会网络联系质量才是影响用户创新绩效的关键。其中,高质量联系能够显著提升用户创新产出价值,并显著减少创意项目淘汰概率;而低质量联系则会显著降低用户创新产出价值,且微弱提高创意项目淘汰概率。以此为基础,为创新用户和开放式创新平台方提出策略性建议。     

Optimal traffic calming: A mixed-integer bi-level programming model for locating sidewalks and crosswalks in a multimodal transportation network to maximize pedestrians’ safety and network usability

We study the effect that installing sidewalks and crosswalks, as traffic calming facilities, has on the safety and usability of a transportation network with automobile, public transit and walking as modes of transportation. A mathematical programming model is proposed for this problem whose objective is to minimize the safety hazard for pedestrians and the total transportation cost of the network. We utilize a customized greedy heuristic and a simulated annealing algorithm for solving the problem. The computational results indicate that installing sidewalks and crosswalks at proper locations can reduce the overall transportation cost and improve pedestrians’ safety.     

基于UML的用户培训管理系统设计与实现

UML是一种有力的面向对象的可视化建模工具,可用于描述和构造软件的体系结构。文章以建模步骤为线索,围绕用户培训管理系统的设计与实现,给出了系统需求模型和动态行为模型的详细UML描述。本系统采用ASP.NET实现,现已投入运行,效果良好。     

A reasoned action perspective of user innovation: Model and empirical test

Much research in the field of user innovation has followed two theoretical perspectives — the cost–benefit framework and the community perspective of user innovation. By adopting the theory of reasoned action (TRA) into the context of user innovation, this study establishes an integrative theoretical framework to accommodate both the cost–benefit perspective and the community perspective of user innovation. This TRA-extended framework embraces both the direct and the interactive influences of the cost–benefit factors (the perceived effort in innovation and the perceived benefit from innovation), the individual characteristics (personal innovativeness and experience) and the social interactions (the perceived social influence) in shaping user innovation at the individual level. The empirical results support the proposed theoretical model. The results also reveal that the moderating effect of experience (or perceived effort) on the intentional component of user innovation is different from the effect on the behavioral component of user innovation.     

协同创新视角下用户创新影响因素理论框架构建

随着“互联网+”以及“大众创业、万众创新”时代的到来,用户创新越来越受到产品生产企业和社会的重视,但用户创新转化为有竞争力的产品却存在种种障碍。基于协同创新系统视角,以用户为创新源头,分别从创新知识特性、用户本身、协同主体互动、协同界面管理效率等方面进行影响因素分析,构建了协同创新系统下用户创新绩效影响因素分析框架,为整体把握用户创新绩效影响因素提供了新思路。     

The housing bubble and a new approach to accounting for housing in a CPI

Over the course of the recent house price bubble in the United States, the price of homes rose rapidly from 1999 Q4 to 2005 Q4 (11.3% annually as measured by the Case-Shiller index, and 8.4% annually as measured by the Federal Housing Financing Agency) but slowly as measured by owner equivalent rents (3.4%), so measured core inflation remained relatively docile during this period, since only rents are used to measure inflation for housing services in the United States. Over the last several decades, the US Bureau of Labor Statistics (BLS) has experimented with both rental equivalence and user cost approaches for accounting for owner occupied housing (OOH) services in the CPI. We explain the basics of these approaches, and outline the BLS experiences with using them. This assessment leads us to conclude that the time has come to try a new approach: the opportunity cost approach. We argue this approach has advantages over both the conventional rental equivalence and user cost approaches, though it embeds components of the measures for both those approaches and builds solidly on the research of Verbrugge and others at the BLS. Also, we take up empirical issues that must be faced regardless of which of the approaches discussed is adopted. We explain how the repeat-sales and various hedonic regression methods can be placed in a common framework, thereby facilitating understanding of the properties of and the tradeoffs between the methods. We also consider measurement complications that arise because the land and structure components of properties depreciate at different rates.     

The effect of web interface features on consumer online purchase intentions

Corporations spend millions of dollars a year creating and maintaining corporate websites, yet many of these sites fail to reach the organization's goals [Freemantle D. The psychology of crm. Int J Cust Relatsh Manag 2002; http://www.superboss.co.uk/articles2main.htm]. Recent research suggests that these failures reflect poor website design, yet this research lacks the specificity necessary to provide practical recommendations for improving site performance [Rosen EE, Purinton E. Website design: viewing the web as a cognitive landscape. J Bus Res 2004; 57:787-94]. This study fills that gap by providing specific recommendations regarding website design elements that generate positive managerial outcomes. First, the study tests a wide range of design elements to determine those that provide human elements and computer elements. Next, these elements are linked through intermediaries using the uses and gratifications theory, technology acceptance model, and the concept of flow to explain purchase intentions and intentions to revisit the site.     

用户参与企业产品创新的系统管理机制

用户参与是技术创新理论中一个非常重要的研究领域,在新产品开发过程中,用户作为价值创造者的作用已经受到学者和企业家的重视.用户参与产品创新,可以拓展企业创新源、为企业赢得持续竞争优势和提高新产品开发效率.如何有效地获取用户资源,将这一资源充分整合在新产品的开发过程中,且能够成功将产品推向市场,这是用户参与产品创新的关键.本文研究了如何系统管理用户参与新产品开发的过程,认为企业需要进行相应的组织安排和制度设计;需要构建用户参与产品创新的支持系统;需要控制用户参与新产品开发的过程.     

用户交互对产品知识认知扩散的影响及社区激励研究

网络产品社区中以用户发帖、评论为代表的深度交互行为是快速认知新产品知识并传播扩散的动力源泉。基于社会资本理论,依托小米社区论坛手机产品板块,采用数据挖掘与社会网络分析方法,分别从具有典型交互行为特征用户的发帖数量与质量角度,研究用户交互对产品知识认知扩散的影响。结果表明,用户发帖作为响应社区活动的特殊评论形式,其发帖数量对扩散有显著正向影响;发帖题目长度对扩散有显著负向影响;过长或过短的发帖内容长度都会对扩散产生显著负向影响;新帖发布者的发帖内容平均长度与用户社交行为习惯相吻合,简要少量的信息能够有效激励用户的高频次交互。研究结果有助于指导社区针对典型交互行为特征用户提出相应的激励策略,促进社区新产品推广并使用户快速形成产品认知。     

面向用户创新社区的企业知识创新价值链模型研究

定义了用户创新社区,根据SECI模型,描述了用户创新社区中的知识创新过程。基于网络环境下知识创新和用户行为特征,构建了基于用户创新社区的企业知识创新价值链模型,分别研究了模型中提出的知识创新辅助活动和知识创新基本活动。以小米科技为例,指出了实施基于用户创新社区的企业知识创新模式的具体实施步骤和措施。