建立物理知识体系,发展学生思维能力

全面培养学生思维能力,正确处理知识传授与能力培养的关系,在传授知识的同时,引导学生逐步建立知识体系,进而提高学生的思维能力。     

Perceptions of facilitators of a keypad‐based group support system

Organizations are using Group Support Systems (GSSs) to improve the quality of group meetings. Keypad‐based GSSs are a widely used form of this technology, yet there has been little research on their use and effects. This paper reports the findings of a survey of facilitators of a particular keypad GSS. Facilitators indicate that keypad technology improves the quality of meetings for a variety of tasks in a range of group settings and cultures. The findings are in general agreement with field studies of workstation‐based systems.     

国资国企改革典型经验研究与启示——央企和部分省市典型经验对上海“十二五”期间国资国企改革的启示

国有经济和国有企业伴随着中国30年的改革开放，有了重大的变化。中央企业和各省市探索出许多国资国企改革方面值得总结和借鉴的宝贵经验。这些经验也将给上海市“十二五”期间进一步深化国资国企改革带来有益的启示，促进新一轮国资国企的改革发展。     

创新思维创造中国奇迹——纪念中国共产党成立90周年

中国共产党的成立,改变了人类历史进程。尤其是改革开放后的33年,超越了发达国家发展需要上百年的时间,跻身于世界经济强国之列,令全球震惊不已。实践证明：中国共产党人的创新思维能力体现在每一个历史转折关头,因此创造出无数的中国奇迹,并引领着未来前进的方向。     

Economic corollaries of personalized recommendations

The impact of recommendation systems (RSs) on the diversity of consumption is not transparent or well understood. Available studies, whether experimental or theoretical, show inconsistent and even opposite results, which manifests as debate in the literature. In this paper, we investigate the impact of two main recommender systems, neural collaborative filtering and deep content filtering, on sales diversity via a randomized field experiment. Our results confirm the capability of recommender engines in increasing or decreasing aggregate sales diversity. Nonetheless, they amplify homogenization and reduce individual-level consumption diversity. In conclusion, our research reconciles seemingly contradict previous findings and illustrates that the design of the RS is the decisive factor in homogenizing or diversifying product sales.     

Search reduction in hierarchical distributed problem solving

Knoblock and Korf have determined that abstraction can reduce search at a single agent from exponential to linear complexity (Knoblock 1991; Korf 1987). We extend their results by showing how concurrent problem solving among multiple agents using abstraction can further reduce search to logarithmic complexity. We empirically validate our formal analysis by showing that it correctly predicts performance for the Towers of Hanoi problem (which meets all of the assumptions of the analysis). Furthermore, a powerful form of abstraction for large multiagent systems is to group agents into teams, and teams of agents into larger teams, to form an organizational pyramid. We apply our analysis to such an organization of agents and demonstrate the results in a delivery task domain. Our predictions about abstraction's benefits can also be met in this more realistic domain, even though assumptions made in our analysis are violated. Our analytical results thus hold the promise for explaining in general terms many experimental observations made in specific distributed AI systems, and we demonstrate this ability with examples from prior research.This research has been sponsored, in part, by the National Science Foundation under grants IRI-9015423 and IRI-9010645, by the University of Michigan Rackham Graduate School, and by a Bell Northern Research Postgraduate Award.     

我国低效资本市场的负面影响及应对策略

长期以来 ,以证券市场为代表的我国资本市场一直处于低效弱效状态 ,这一市场态势已成为当前提升我国金融体系国际竞争力、深化经济体制、社会保障改革与金融市场应对加入WTO的最大障碍。我们的社会各界特别是政府部门应在借鉴外国高效的资本市场监管基础上 ,从立法与政策上采取得力措施进一步完善市场参与主体约束机制 ,改进入市股权所有制成份结构 ,准许国有法人股入市流通 ,健全市场信息披露制度 ,充分发挥市场价值规律 ,形成内在的价格均衡机制 ,降低平均交易成本 ,增强投融资效率 ,从而提高我国的资本市场效率 ,为提高我国金融体系国际竞争力、深化经济体制、社会保障改革 ,为应对加入WTO后的金融环境扫清障碍。     

东北东部区域经济合作的战略构想

开通"东边道",整合东部区域经济,使东三省东部地区在山海关拥挤走廊和大连通道以外,开辟出另一条纵深贯通的进出大通道,将给东部地区经济资源重组、联合发展、共图振兴创造有利条件.     

大学生思想教育刍议

引导和教育大学生树立正确的世界观、人生观、价值观,必须在继承传统的基础上,增强思想政治工作的针对性和实效性,努力创新,才能开创高校思想政治工作的新局面,做到与时俱进.