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71.
Abstract The Pareto distribution plays a central role in many areas of econometrics. So, we first consider sequential point estimation problems for the scale parameter of a Pareto distribution. Under a very general loss structure, we derive several asymptotic results regarding the associated “risk” and “regret” functions. Then, we consider the problem of constructing a fixed-ratio confidence interval for the scale parameter, and we propose various sampling techniques to achieve the intended goal. Most of our theoretical findings are asymptotic in nature for either problem, and thus we have presented extensive simulation studies to examine moderate sample performances of all the procedures. The findings in the point estimation problem are also supposed to fill many important gaps left in the paper of Wang (1973). 相似文献
72.
We present an advanced multimedia infrastructure that integrates continuous real-time media streams within the WWW. This new
service architecture focuses on advanced facilities for dealing with multimedia contents. A mediation server is at the heart
of the infrastructure. It organizes and structures the multimedia information space. In addition to simple services for accessing
and delivering multimedia data, it provides new functionalities for filtering and querying multimedia content. Content servers
and on-line sources deliver media streams integrated within synchronized multimedia presentations. We think that the infrastructure
will offer new opportunities for WWW-based information systems and electronic commerce.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
73.
文章概述了燃气泄漏报警器的研制原理以及开发应用情况,对燃气报警器在商业用户中的安装现状进行分析,并提出问题及建议。 相似文献
74.
郑明 《中小企业管理与科技》2021,(9)
在当前时代背景下,自动化技术快速发展并日渐成熟,在机械加工制造的过程当中发挥了重要作用。尤其是在现代化技术的推动下,自动化技术的类别不断丰富,这在很大程度上提高了企业的生产质量和生产效率。企业应当结合实际情况,对自动化技术展开进一步的研究和应用。论文主要对机械加工制造当中自动化技术的应用进行研究,以供相关专业人士参考和借鉴。 相似文献
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创新是一个国家兴旺发达的不竭动力。文章研究了创造学与管理学之间在学科结构上的关系,着重对创造学在管理学中的创新应用进行探讨。 相似文献
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建筑活动是人类对自然资源、环境影响最大的活动之一。建筑的整个生命周期,从建造、使用直至最后被拆除都需要消耗大量能源和材料,产生很多对环境有害的废弃物,对环境的影响巨大。因此要想实现人类可持续发展的目标,建筑行业必须改变目前高能耗、高物耗、高污染的现状。 相似文献
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80.
Syed K. Tanbeer Juan J. Cameron 《Journal of Organizational Computing & Electronic Commerce》2014,24(2-3):157-173
Social networks are generally made of individuals who are linked by some types of interdependencies such as friendship. Most individuals in social networks have many linkages in terms of friends, connections, and/or followers. Among these linkages, some of them are stronger than others. For instance, some friends may be acquaintances of an individual, whereas others may be friends who care about him or her (e.g., who frequently post on his or her wall). In this study, we integrate data mining with social computing to form a social network mining algorithm, which helps the individual distinguish these strong friends from a large number of friends in a specific portion of the social networks in which he or she is interested. Moreover, our mining algorithm allows the individual to interactively change his or her mining parameters. Furthermore, we discuss applications of our social mining algorithm to organizational computing and e-commerce 相似文献