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《中国对外贸易(英文版)》1995,(9)
China has built 22 optical cable trunks, 20 digital microwave trunks and 20 medium-to-large satellite earth stations during the eighth Five-year Plan, thus creating a favorable condition for the development of China's data telecommunications and value-added business. China's public data telecommunications, networks have become the main stream for the country's information transmission through several years of rapid development. China's public packet switching data network (China Pac), its network capacity increasing to over 60,000 terminals, now covers more than 600 cities, and is interconnected with 44 packet networks of 23 countries and regions. China's public 相似文献
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营销者说在中国,没有通用的模式可以适应不同层级的市场,而不断快速变化的环境则更是需要我们以Co-competition(竞合)的思路和态度来面对。营销人对数字媒介的投入在持续增长。过去一年中,数字媒介购买领域主要有两个变化:OTV(Online TV,在线视频)快速增长,品牌将预算从电视转向在线视频;另一个变化是门户的削弱,随着消费者获取内容的渠道越来越普遍,尤其是在便捷的移动终端,导致PC门户与移动端之间出现了此消彼长的情况。在多屏策划与整合购买中,以前往 相似文献
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Kevin B. Smyth Keely L. Croxton Rod Franklin A. Michael Knemeyer 《Journal of Business Logistics》2018,39(3):203-219
Increased volume, velocity, and variety of data provides new opportunities for businesses to take advantage of data science techniques, predictive analytics, and big data. However, firms are struggling to make use of their disjointed and unintegrated data streams. Despite this, academics with the analytic tools and training to pursue such research often face difficulty gaining access to corporate data. We explore the divergent goals of practitioners and academics and how the gap that exists between the communities can be overcome to derive mutual value from big data. We describe a practical roadmap for collaboration between academics and practitioners pursuing big data research. Then we detail a case example of how, by following this roadmap, researchers can provide insight to a firm on a specific supply chain problem while developing a replicable template for effective analysis of big data. In our case study, we demonstrate the value of effectively pairing management theory with big data exploration, describe unique challenges involved in big data research, and develop a novel and replicable hierarchical regression‐based process for analyzing big data. 相似文献
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基于Panel Data模型的上市公司动态综合评价 总被引:1,自引:0,他引:1
上市公司的经营业绩和发展前景是其各利益主体关心的主要问题,对上市公司做出客观公正的评价具有十分重要的意义。现有的一些对上市公司评价的方法存在着静态性等缺陷,不能较好地反映实际情况,而PanelData模型具有估计方法优良、估计精度高、参数含义明确等特点,将其应用于动态综合评价,能够准确地做出分析,克服现有方法的不足。 相似文献
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