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71.
72.
Incidental Exposure,Selective Exposure,and Political Information Sharing: Integrating Online Exposure Patterns and Expression on Social Media 下载免费PDF全文
Brian E. Weeks Daniel S. Lane Dam Hee Kim Slgi S. Lee Nojin Kwak 《Journal of Computer-Mediated Communication》2017,22(6):363-379
Political information sharing in social media offers citizens opportunities to engage with news and express their political views, but how do different patterns of online political information exposure, including both incidental and selective exposure, affect sharing? Using two‐wave panel survey data collected in the United States, we examine the relationship between incidental and selective exposure and their consequent links to political information sharing, across different levels of strength of political party affiliation. Our results demonstrate that incidental exposure to counter‐attitudinal information drives stronger partisans to more actively seek out like‐minded political content, which subsequently encourages political information sharing on social media. The results highlight the need to consider both types of political information exposure when modeling citizens' political behavior online. 相似文献
73.
Barry Brian Werger Maja J. Matarić 《Annals of Mathematics and Artificial Intelligence》2001,31(1-4):173-197
Ant-like systems take advantage of agents' situatedness to reduce or eliminate the need for centralized control or global knowledge. This reduces the need for complexity of individuals
and leads to robust, scalable systems. Such insect-inspired situated approaches have proven effective both for task performance
and task allocation. The desire for general, principled techniques for situated interaction has led us to study the exploitation
of abstract situatedness – situatedness in non-physical environments. The port-arbitrated behavior-based control approach provides a well-structured abstract behavior space in which agents can participate in situated interaction. We focus on the problem of role assumption, distributed task allocation in which each agent selects its own task-performing role. This paper details our general, principled
Broadcast of Local Eligibility (BLE) technique for role-assumption in such behavior-space-situated systems, and provides experimental
results from the CMOMMT target-tracking task.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献
74.
智能体在自然界建模中的应用研究 总被引:5,自引:0,他引:5
给出了动物模型的智能体设计和解决方案,扩展了智能体系统的概念。应用Swarm智能体系统和Kohonen网络,给出了一个将许多地貌、植物和动物结合起来Swarm解决方案。 相似文献
75.
76.
Effects of chemical protective equipment on team process performance in small unit rescue operations
In the event of a nuclear, biological, or chemical terrorist attack against civilians, both military and civilian emergency response teams must be able to respond and operate efficiently while wearing protective equipment. Chemical protective equipment protects the user by providing a barrier between the individual and hazardous environment. Unfortunately, the same equipment that is designed to support the user can potentially cause heat stress, reduced task efficiency, and reduced range-of-motion. Targeted Acceptable Responses to Generated Events of Tasks (TARGETS), an event-based team performance measurement methodology was used to investigate the effects of Mission Oriented Protective Posture (MOPP) on the behavioral processes underlying team performance during simulated rescue tasks. In addition, this study determined which team processes were related to team performance outcomes. Results of six primary analyses indicated that team process performance was not degraded by MOPP 4 on any rescue task and that the team processes critical for successful task performance are task-dependent. This article discusses the implications of these results with respect to the study design and the limitations of using an event-based team performance measurement methodology. 相似文献
77.
For service-oriented architectures that span multiple businesses, organizations must transfer information back-and-forth about
their available services. Because of the potential large volume, it is unreasonable and impractical to expect human practitioners
to handle the scale of interactions desired and/or required on a continual basis. Intelligent agents offer the adaptability
and flexibility to handle the knowledge transfer that must occur in order to share service offerings. Effectively transferring
service-oriented information in this domain requires autonomous systems that adapt to heterogeneous environments. This work
introduces an architecture and specialized communication procedures designed for this sort of knowledge sharing environment.
We show that these procedures perform reasonably when evaluated with current agent communication technologies.
相似文献
M. Brian Blake (Corresponding author)Email: |
78.
Tailoring of methods is commonplace in the vast majority of software development projects and organisations. However, there is not much known about the tailoring and engineering of agile methods, or about how these methods can be used to complement each other. This study investigated tailoring of the agile methods, eXtreme programming (XP) and Scrum, at Intel Shannon, and involved experienced software engineers who continuously monitored and reflected on these methods over a 3-year period. The study shows that agile methods may individually be incomplete in supporting the overall development process, but XP and Scrum complement each other well, with XP providing support for technical aspects and Scrum providing support for project planning and tracking. The principles of XP and Scrum were carefully selected (only six of the 12 XP key practices were implemented, for example) and tailored to suit the needs of the development environment at Intel Shannon. Thus, the study refutes the suggestion that agile methods are not divisible or individually selectable but achieve their benefits through the synergistic combination of individual agile practices; rather, this study shows that an a la carte selection and tailoring of practices can work very well. In the case of Scrum, some local tailoring has led to a very committed usage by developers, in contrast to many development methods whose usage is limited despite being decreed mandatory by management. The agile practices that were applied did lead to significant benefits, including reductions in code defect density by a factor of 7. Projects of 6-month and 1-year duration have been delivered ahead of schedule, which bodes well for future ability to accurately plan development projects. 相似文献
79.
80.
It has recently been proposed that classical music has a fractal nature. A reanalysis of this proposal reveals some logical flaws in the argument. Chaos, fractals, time series and Schenkerian analysis are contrasted and inter-related. Further consideration of Bach's Invention No 1 (BWV772) leads to the conclusion that there is no inherent fractal nature in classical music; although the converse is not true. In other words, it is feasible to use fractal ideas to compose musical pieces — an area of much interest in recent years.
Brian Henderson-Sellers is Associate Professor in the School of Information Systems at the University of New South Wales. His research interests span object-oriented information systems and environmental simulation modelling. Over the last three years, he has begun to integrate his software and musical interests in a collaboration, supported by the Australia Council for the Arts, with Greg White in the compositional use of object technology and strange attractors. Their first composition together was premiered in October 1992. He has, amongst other books, published A Book of Object-oriented Knowledge,Prentice Hall.
David Cooper is a lecturer and director of the electronic studio in the Music Department of the University of Leeds. He is a composer with a special interest in the music of Bela Bartok. He has recently been appointed technical director of the English University Funding Council Teaching and Learning Technology project in music which is producing multi-media computer-based learning packages. Publications include A Pascal MIDI Library for the Atari ST, Musicus,1, 2 (1989), and A Computationally Non-intensive Algorithm for Pitch Recognition, Array,12, 2 (1992). 相似文献