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1.
随着"互联网+"在各个领域的广泛应用,众包创新平台应运而生。众包创新作为协同创新的一种模式,基于互联网平台为企业提供创新服务,可以有效提升企业核心竞争力。基于风险感知理论与风险控制相关文献,从平台风险控制角度,以猪八戒众包创新平台为例,采用数据挖掘技术获取平台一手数据,利用层次回归模型研究风险控制机制对众包创新平台有效性的影响。研究发现:通过建立接包方服务绩效评价体系与平台功能风险控制(保证金及接包商信誉评级)可以降低发包方对众包创新的感知风险,从而增强众包创新平台有效性。在两种风险控制机制的交互作用下,平台的有效性会得到进一步提升。此结论有助于众包创新平台运营及服务监管,促进平台交易环境向正规化、有序化方向发展,提升平台竞争力。  相似文献   
2.
众包是近年来流行的一种分布式商业模式,采用众包方式获取标注是一种快速廉价获取海量数据标签的有效方式,由于众包平台中普遍存在不认真完成任务的作弊用户,众包标注质量难以保证.为有效提高众包标注准确性,通过学习标注者的可靠性,实现基于标注者的可靠性进行动态任务分配,采用贪婪的预测模型实现对多个标注者提交的标签进行聚集,获得高质量的众包标注结果.实验结果表明,该方法能获得比基准算法更高的标注准确性,有效实现众包标注质量控制.  相似文献   
3.
The use of socio-technical data to predict elections is a growing research area. We argue that election prediction research suffers from under-specified theoretical models that do not properly distinguish between ‘poll-like’ and ‘prediction market-like’ mechanisms understand findings. More specifically, we argue that, in systems with strong norms and reputational feedback mechanisms, individuals have market-like incentives to bias content creation toward candidates they expect will win. We provide evidence for the merits of this approach using the creation of Wikipedia pages for candidates in the 2010 US and UK national legislative elections. We find that Wikipedia editors are more likely to create Wikipedia pages for challengers who have a better chance of defeating their incumbent opponent and that the timing of these page creations coincides with periods when collective expectations for the candidate's success are relatively high.  相似文献   
4.
ABSTRACT

At the 2017 North Carolina Serials Conference, keynote speaker Regina Romano Reynolds—Director, U.S. ISSN Center and Head, ISSN Section at the Library of Congress—explored how bibliographic transformation can connect users to good-quality content. Offering examples of current and potential serials management projects, Reynolds shared her vision for breaking down information silos, experimenting in the resource management space, and the need for visionary leadership.  相似文献   
5.
Crowdsourcing platforms like Amazon’s Mechnical Turk and Crowdflower have been touted to be a cost-effective way to collect large amounts of behavioural data. Across four large-n studies, gambling-related behaviours, tendencies and traits among participants in these labour markets were examined. In Studies 1 and 2, both conducted on Crowdflower, problem gamblers (as measured by the benchmark Problem Gambling Severity Index) comprised 24.5% and 21.9% of participants, respectively. In Study 3, conducted on Mechanical Turk, problem gamblers comprised 9.0% of participants. In Study 4, a two-wave longitudinal study conducted on Crowdflower, problem gamblers comprised 13.5% of participants in wave one and 14.8% of participants in wave two. In Studies 2 and 3, strong convergent associations were demonstrated across various measures of problem gambling tendencies and general gambling involvement. Furthermore, it was demonstrated that gambling was associated with personality traits (impulsivity, sensation-seeking, self-control), risk attitudes, affect, and behavioural risk-taking consistent with previous research. In Study 4, it was demonstrated that measures of problem gambling have acceptable test-retest reliability. Online crowdsourcing platforms appear to offer access to samples with remarkably high proportions of problem gamblers. However, this characteristic means that such samples are not necessarily representative of gambling tendencies among more general populations.  相似文献   
6.
众包社区用户持续参与行为实证研究   总被引:1,自引:0,他引:1  
用户对众包社区的参与行为可以分为初始的采纳阶段与采纳后的持续参与阶段。众包社区成功的关键在于用户的持续参与行为,即第二个阶段的行为。文章对用户第二个阶段的行为进行了实证研究,认为众包社区用户的持续参与意向主要受到用户满意度以及沉浸等因素的影响,而感知有用性对满意度有正向的影响,享受乐趣、虚拟社区感、自我肯定等因素会促使沉浸的形成。  相似文献   
7.
Crowdsourcing has become a major tool for scholarly research since its introduction to the academic sphere in 2008. However, unlike in traditional laboratory settings, it is nearly impossible to control the conditions under which workers on crowdsourcing platforms complete tasks. In the study of communication disorders, crowdsourcing has provided a novel solution to the collection of perceptual ratings of human speech production. Such ratings allow researchers to gauge whether a treatment yields meaningful change in how human listeners' perceive disordered speech. This paper will explore some statistical considerations of crowdsourced data with specific focus on collecting perceptual ratings of human speech productions. Random effects models are applied to crowdsourced perceptual ratings collected in both a continuous and binary fashion. A simulation study is conducted to test the reliability of the proposed models under differing numbers of workers and tasks. Finally, this methodology is applied to a data set from the study of communication disorders.  相似文献   
8.
ABSTRACT

China, one of the world’s most clandestine states, is currently engaged in moves to make state secrecy a matter of public policy, even inaugurating a ‘National Security Education Day’ in 2016. This article explores some recent campaigns about spy-catching to show how the state is using crowdsourcing, content marketing, and prosumerist gambits to sell an emergent social space of civic duty that I term the cryptosphere. Inciting civic participation is a particularly deft tool for propaganda work of this kind, which pivots on performative ideology. The ostensible purpose of these campaigns is to enlist the Chinese people in the securitization of the state, but in practice this is a highly disingenuous move given that the realm of the classified in China is so vast that ‘keeping secrets’ can only be perfunctory for almost all of its citizens. So far, commentators outside China have either been amused by the state’s new forays into infographics and mash-up videos, or critical of their xenophobic messaging. But the state’s apparently light-hearted drive to remind the Chinese people of the need to track spies is only peripherally about foreigners. It is occurring at a time when the government is also trialling a vast algorithmic grab on its own citizens’ personal data via the social credit system; operating a CCTV surveillance regime of more than one million cameras; and conducting mandatory biometric profiling in Xinjiang using DNA, blood types, iris scans, and fingerprints. These policies, I argue, constitute the exoskeleton of the cryptosphere. But this new sphere also needs its soft padding. Propaganda campaigns which school subjects on how to perform the role of loyal ‘informants’ – at the very moment that their own information is increasingly being expropriated by the state – are providing just this kind of thought work cushion.  相似文献   
9.
根据网络众包竞赛运行的特点和众包绩效的相关研究,运用多元线性回归的方法,从网络众包竞赛参与者个体的参赛数量、任期和参赛间隔等行为方面着手,通过对大众参与网络众包竞赛的绩效影响因素开展分析,识别网络众包竞赛个体绩效的主要影响变量。结果表明:参赛者个体的任期和提交次数对比赛成绩有显著的正向作用;总排名和参赛间隔对比赛成绩有显著的负向作用;参赛数量在任期和比赛成绩之间起到了负向的调节作用;参赛数量在参赛间隔和比赛成绩之间起到了正向的调节作用;参赛间隔在任期和比赛成绩之间也起到了负向的调节作用。  相似文献   
10.
In many innovation settings, ideas are generated over time and managers face a decision about if and how to provide in‐process feedback to the idea generators about the quality of submissions. In this article, we use design contests allowing repeated entry to examine the effect of in‐process feedback on idea generation. We report on a set of field experiments using two online contest websites to compare the performance of three different feedback treatments—no feedback, random feedback, and directed feedback (i.e., in‐process feedback highly correlated with the final quality rating of the entry). We posted six logo design contests for consumer products and accepted submissions for 1 week. We provided daily feedback during the contest period using one of the three treatments. We then used a panel of target consumers to rate the quality of each idea. We find that directed feedback is associated positively with agent participation. For outcome, while directed feedback benefits the average quality of entries submitted, we don't find that relationship for the best entries—indeed, no feedback or random feedback may produce better top‐end entry quality. We also find that, under directed feedback, the variance in quality declines as the contest progresses.  相似文献   
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