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Analysis on Evaluating Comprehensive Efficiency of Enterprise Leaders' Performance Based on Scientific Development Outlook
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作者 WANG Wei 《Chinese Business Review》 2007年第2期47-53,共7页
In former researches there are primary theoretical studies and qualitative analyses on enterprise leaders' effectiveness and performance, and there are a few studies on quantitative analyses which mostly relies on th... In former researches there are primary theoretical studies and qualitative analyses on enterprise leaders' effectiveness and performance, and there are a few studies on quantitative analyses which mostly relies on the method of comparing differences and ratio of divergence to evaluate leaders' performance by stage statistics. This paper illustrates how to evaluate Comprehensive Efficiency (CE) based on Scientific Development Outlook, which reflects overall development of enterprise leaders' performance, depends on measuring Output Efficiency Index (OEI) and Cost Efficiency Index (CEI) of enterprise leaders' performance, and adopts the C^2R model in Data Envelopment Analysis (DEA). 展开更多
关键词 enterprise leaders' performance Scientific Development Outlook Comprehensive Efficiency Output Efficiency Index Cost Efficiency Index
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How Group Leaders Build Stable Community Buying Groups:A Perspective Based on the Differential Mode of Association
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作者 SI Xiang 《Psychology Research》 2024年第1期30-35,共6页
Since 2016,community group buying has grown significantly in China,largely driven by its efficient logistics,supply chains,low prices,and convenience.This model has been further popularized during the COVID-19 pandemi... Since 2016,community group buying has grown significantly in China,largely driven by its efficient logistics,supply chains,low prices,and convenience.This model has been further popularized during the COVID-19 pandemic due to its effectiveness in meeting daily needs while minimizing human-to-human contact.A key component of this business model is the“group leaders”-influential individuals within a community responsible for managing group buying activities,which include order collection,supplier liaison,and goods distribution.Their primary task is to form and sustain a reliable community group buying consortium,a task that demands excellent organizational and interpersonal skills.This paper examines this phenomenon using the lens of the differential mode of association,a theoretical model explaining interpersonal relationships in traditional Chinese society.The research indicates that group leaders,through regular interaction with consumers,are able to alter their social network position,increase their influence,understand consumer needs,provide satisfying services,and enhance trust,thereby transforming consumers into loyal group buying participants.This transformation not only brings stability to group buying activities but also reinforces the community influence of group leaders,thus fostering the growth of community group buying. 展开更多
关键词 Community group buying China Group leaders The differential mode of association
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China’s Change through Future Leaders’Eyes
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作者 ZHOU LIN 《China Today》 2024年第3期41-41,共1页
Together for a Shared Future Compiled by Global Young Leaders Dialogue Price:RMB 118 Paperback,250 pages Published by Foreign Languages Press Together for a Shared Future is co-authored by 35 young people from 26 coun... Together for a Shared Future Compiled by Global Young Leaders Dialogue Price:RMB 118 Paperback,250 pages Published by Foreign Languages Press Together for a Shared Future is co-authored by 35 young people from 26 countries who participated in the project China Tour of the Global Young Leaders Dialogue(GYLD),an institutional platform for idea-sharing among young people from different countries. 展开更多
关键词 TOGETHER leader FUTURE
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The Critical Role of Middle Leaders in Schools:Cultivating a Culture of Trust and Supporting Educational Reform
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作者 Xingyun Fang Jianli Wang 《Journal of Educational Theory and Management》 2024年第1期1-6,共6页
This research delves into the often-underappreciated role of middle leaders in educational organizations,highlighting their significance as the linchpins between senior leadership and classroom teachers.Utilizing qual... This research delves into the often-underappreciated role of middle leaders in educational organizations,highlighting their significance as the linchpins between senior leadership and classroom teachers.Utilizing qualitative research methods,the study investigates the multifaceted responsibilities,challenges,and contributions of middle leaders in schools.Findings indicate that middle leaders foster a culture of trust within the institution by providing mentorship and guidance to new teachers.They undertake substantial tasks,such as team coordination,grade direction,and student supervision,in addition to their teaching duties.Despite their pivotal role,middle leaders often face mounting pressures and heavy workloads.This research underscores the need to recognize and support middle leaders in educational settings,acknowledging their vital role in fostering cohesion and facilitating the implementation of educational reforms. 展开更多
关键词 Middle leaders Educational leadership Trust culture
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Image Recognition Model of Fraudulent Websites Based on Image Leader Decision and Inception-V3 Transfer Learning
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作者 Shengli Zhou Cheng Xu +3 位作者 Rui Xu Weijie Ding Chao Chen Xiaoyang Xu 《China Communications》 SCIE CSCD 2024年第1期215-227,共13页
The fraudulent website image is a vital information carrier for telecom fraud.The efficient and precise recognition of fraudulent website images is critical to combating and dealing with fraudulent websites.Current re... The fraudulent website image is a vital information carrier for telecom fraud.The efficient and precise recognition of fraudulent website images is critical to combating and dealing with fraudulent websites.Current research on image recognition of fraudulent websites is mainly carried out at the level of image feature extraction and similarity study,which have such disadvantages as difficulty in obtaining image data,insufficient image analysis,and single identification types.This study develops a model based on the entropy method for image leader decision and Inception-v3 transfer learning to address these disadvantages.The data processing part of the model uses a breadth search crawler to capture the image data.Then,the information in the images is evaluated with the entropy method,image weights are assigned,and the image leader is selected.In model training and prediction,the transfer learning of the Inception-v3 model is introduced into image recognition of fraudulent websites.Using selected image leaders to train the model,multiple types of fraudulent websites are identified with high accuracy.The experiment proves that this model has a superior accuracy in recognizing images on fraudulent websites compared to other current models. 展开更多
关键词 fraudulent website image leaders telecom fraud transfer learning
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Observation and analysis of positive leader re-illumination in a 10 m ultra-high voltage transmission line gap under switching impulse voltages
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作者 Biao HUANG Xuan ZHOU +3 位作者 She WANG Chijie ZHUANG Rong ZENG Le DENG 《Plasma Science and Technology》 SCIE EI CAS CSCD 2024年第10期93-100,共8页
The leader propagation is one of the most important stages in long air gap discharge.The mechanism behind leader re-illumination remains unclear.In high humidity conditions(20.0–30.1 g/m^(3)),we have conducted experi... The leader propagation is one of the most important stages in long air gap discharge.The mechanism behind leader re-illumination remains unclear.In high humidity conditions(20.0–30.1 g/m^(3)),we have conducted experiments of long sparks in a 10 m ultra-high voltage(UHV)transmission line gap under switching impulse voltages.The positive leaders predominantly propagate discontinuously,with almost no significantly continuous propagation occurring.The leader channels are intensely luminous and each elongation segment is straight,with streamers resembling the“branch type”which differs from the“diffuse type”streamers at the front of continuous propagation leaders.The distribution of the propagation velocities is highly random(3.7–18.4 cm/μs),and the average velocity(9.2 cm/μs)significantly exceeds that of continuous propagation(1.5–2.0 cm/μs).Analysis suggests that the current-velocity models suitable for continuous leader propagation do not align well with the experimental data in re-illumination mode.Based on the discharge current waveforms and optical images,it is speculated that the newly elongated leader in re-illumination mode does not evolve gradually from the stem(about 1 cm)but rather evolves overall from a thermal channel much longer than stem. 展开更多
关键词 long air gap discharge positive leader re-illumination discontinuous leader propagation
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振动信号小波leaders多重分形特征提取及性能分析 被引量:5
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作者 李彦明 杜文辽 +1 位作者 叶鹏飞 刘成良 《机械工程学报》 EI CAS CSCD 北大核心 2013年第6期60-65,共6页
机械振动信号一般具有非线性、非平稳特性,多重分形特征是表示振动信号几何结构特征的一种重要手段。传统的多重分形特征计算方法计算量大,限制了多重分形特征的应用。小波leaders多重分形分析方法具有坚实的数学基础,且计算简便。针对... 机械振动信号一般具有非线性、非平稳特性,多重分形特征是表示振动信号几何结构特征的一种重要手段。传统的多重分形特征计算方法计算量大,限制了多重分形特征的应用。小波leaders多重分形分析方法具有坚实的数学基础,且计算简便。针对齿轮正常状态和点蚀故障状态,提出基于小波leaders的多重分形振动信号特征提取及表示方法,提出基于bootstrap技术的最优块长求解算法,并建立振动信号小波leaders多重分形特征的统计性能分析方法。研究结果表明,小波leaders多重分形特征能够很好反映振动信号的几何结构特征,基于块bootstrap方法能有效分析多重分形特征统计性能,为机械设备状态监控和故障诊断提供了一种有效的选择。 展开更多
关键词 小波leaders 多重分形 块bootstrap 性能分析 故障诊断
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Are Leaders Born or Made?
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作者 施小军 《英语通(高一版)》 2003年第1期38-38,共1页
关键词 ARE leaders BORN MADE 高中 英语 阅读
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Collective coordination of multi-agent systems guided by multiple leaders 被引量:11
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作者 胡江平 袁海文 《Chinese Physics B》 SCIE EI CAS CSCD 2009年第9期3777-3782,共6页
A neighbour-based coordination scheme is proposed for a multi-agent system with multiple leaders. Under assumptions of the connectivity of the interconnection topology and a simple first-order dynamics model for each ... A neighbour-based coordination scheme is proposed for a multi-agent system with multiple leaders. Under assumptions of the connectivity of the interconnection topology and a simple first-order dynamics model for each mobile agent, the results show that all the agents will flock to the polytope region formed by the leaders. 展开更多
关键词 multiple leaders neighbour-based rule ploytope
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Competition Mechanism of Lightning Upward Leaders Issued from UHVDC Transmission Lines 被引量:2
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作者 SHI Wei LI Qingmin +2 位作者 LU Xinchang ZOU Liang SUN Qiuqin 《高电压技术》 EI CAS CSCD 北大核心 2012年第12期3206-3214,共9页
关键词 UHVDC transmission line shielding failure numerical simulation leader progression model competitionof upward leaders lightning protection
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Propagation of positive, negative, and recoil leaders in upward lightning flashes 被引量:2
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作者 XiuShu Qie ShanFeng Yuan +9 位作者 HongBo Zhang RuBin Jiang ZhiJun Wu MingYuan Liu ZhuLing Sun YunJiao Pu JinLiang Li Abhay Srivastava ZiLong Ma GaoPeng Lu 《Earth and Planetary Physics》 CSCD 2019年第2期102-110,共9页
Leader propagation is a fundamental issue in lightning physics. The propagation characteristics of positive leaders and negative leaders are summarized and compared based on data from high-speed camera and electromagn... Leader propagation is a fundamental issue in lightning physics. The propagation characteristics of positive leaders and negative leaders are summarized and compared based on data from high-speed camera and electromagnetic field in rocket-triggered lightning and tower-initiated lightning discharges; available channel base current data recorded in rocket-triggered lightning are also used. The negative leaders propagate in a stepped fashion accompanied by many branches. The stems ahead of the negative leader tip determine the manner and direction of the leader propagation, and even the branching and winding of the lightning channel. The impulsive current, electromagnetic field, and related optical images suggest that the positive leader may develop in a step-like fashion at its initial stage of triggered lightning. However, the stepping processes of the positive leader are obviously different from those of the negative leader. Tower-initiated lightning revealed that the most conspicuous characteristics of the stepwise positive leader involve the intermittent brush-like corona zone in front of the leader tip and the luminosity enhancement of the channel behind the tip. In rockettriggered lightning flashes, the charge transferred during an individual step for the negative leader was nearly an order greater than for the positive counterpart. The successive streamers ahead of the leader tip are essential for both negative and positive leader propagation, and the stems could be formed from one or more streamers in the previous negative streamer zone with the main leader channel dim. High-resolution observation of tower lightning also revealed a new type of bidirectional recoil leader, with polarity contrary to the traditional one, traversing in negative channels associated with tower-initiated and rocket-triggered lightning. 展开更多
关键词 LIGHTNING PROPAGATION NEGATIVE leader POSITIVE leader RECOIL leader
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Evaluation of the effects of a leader-training program on public health nurse leadership for staff in Japan 被引量:1
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作者 Izumi Ueda Kazuko Saeki +3 位作者 Mariko Kawaharada Michiyo Hirano Miyuki Seki Hisako Izumi 《Open Journal of Nursing》 2012年第3期246-253,共8页
This paper is a report of a study of the effects of a leader-training program, focusing on how public health nurse (PHN) leaders manage staff. In Japan, a system of training after graduation or training after acquisit... This paper is a report of a study of the effects of a leader-training program, focusing on how public health nurse (PHN) leaders manage staff. In Japan, a system of training after graduation or training after acquisition of the PHN license has not been established. At present, PHN leaders are unable to devote as much time as they previously could to in-service education, and this has made it difficult to establish a suitable full-fledged in-service education system. Therefore, it is paramount for PHN leaders to acquire the necessary competence to train staff efficiently and, ultimately, play a more prominent role in the in-service education of novice PHNs. The effecttiveness of this program was evaluated before and after conducting the program over a 1-year period. A total of 145 leaders working for local government agencies in Japan participated in the program, and data from 87 participants were analyzed. Before the training program, Plan-Do-Check-Act cycle activities were less frequent than after the program. Intervention using a leader-training program that combines group and on-the-job training is effective for PHN leaders. 展开更多
关键词 PHN leaders leader-Training Program IN-SERVICE Education Management Practice JAPAN
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Determining Leaders and Communities on Networks Using Neighborhood Similarity 被引量:1
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作者 Benjamin Valyou Brian Dickinson Wei Hu 《Social Networking》 2014年第1期50-57,共8页
Networks are used to represent interactions in a wide variety of fields, like biology, sociology, chemistry, and more. They have a great deal of salient information contained in their structures, which have a variety ... Networks are used to represent interactions in a wide variety of fields, like biology, sociology, chemistry, and more. They have a great deal of salient information contained in their structures, which have a variety of applications. One of the important topics of network analysis is finding influential nodes. These nodes are of two kinds —leader nodes and bridge nodes. In this study, we propose an algorithm to find strong leaders in a network based on a revision of neighborhood similarity. This leadership detection is combined with a neighborhood intersection clustering algorithm to produce high quality communities for various networks. We also delve into the structure of a new network, the Houghton College Twitter network, and examine the discovered leaders and their respective followers in more depth than which is frequently attempted for a network of its size. The results of the observations on this and other networks demonstrate that the community partitions found by this algorithm are very similar to those of ground truth communities. 展开更多
关键词 COMMUNITY Detection COMMUNITY leaders Node Importance CENTRALITY NEIGHBORHOOD SIMILARITY MODULARITY
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Children's World Summit for the Environment: Children Challenge World Leaders on the Environment
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《Chinese Journal of Population,Resources and Environment》 北大核心 2005年第4期66-,共1页
关键词 World Children Challenge World leaders on the Environment
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Opinion Leaders and Lead Users in Marketing and Management Accounting and Impact on Small Business Performance
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作者 Katharina Simbeck 《Social Networking》 2013年第1期9-18,共10页
This paper empirically investigates into the business performance benefit that lead users or opinion leaders among small business owners draw from their higher involvement in management accounting or marketing topics.... This paper empirically investigates into the business performance benefit that lead users or opinion leaders among small business owners draw from their higher involvement in management accounting or marketing topics. This work also contributes to a better identification of network members’ roles solely through their ties between each other. Indeed, lead users and opinion leaders can be differentiated by a higher degree centrality in comparison to their peers. However, being an opinion leader or a lead user does not yield a measurable business benefit to the small businesses studied in this sample. 展开更多
关键词 Social NETWORK Analysis Opinion leaders Lead Users Small BUSINESSES NETWORK CENTRALITY
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Xi Meets European Leaders on Advancing Ties, Global Governance
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《China Today》 2019年第5期6-6,共1页
Chinese President Xi Jinping, French President Emmanuel Macron, German Chancellor Angela Merkel and European Commission President Jean- Claude Juncker met in Paris on March 26 and agreed to strengthen China-European U... Chinese President Xi Jinping, French President Emmanuel Macron, German Chancellor Angela Merkel and European Commission President Jean- Claude Juncker met in Paris on March 26 and agreed to strengthen China-European Union (EU) relations and global governance cooperation. 展开更多
关键词 XI Meets EUROPEAN leaders Advancing TIES
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Leaders or Managers to the Army
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作者 Milan Sopoci Zdzislawa Dacko Pikiewicz 《Management Studies》 2016年第4期176-182,共7页
In recent years, the status of leaders has been highlighted and their role has been often overstated. The aim of the contribution is to show that in conditions of the armed forces, the role and the competence of the m... In recent years, the status of leaders has been highlighted and their role has been often overstated. The aim of the contribution is to show that in conditions of the armed forces, the role and the competence of the manager are often more important than competence of a leader. On the basis of the experience of the authors and more experienced officers, and by means of methods of targeted interviews and discussions, the areas have been identified where management capabilities are more important than leadership capabilities. More than 30 experienced officers have contributed their views on the presented results. There are areas, such as strategy, environment, organizational culture, external and internal changes, efficiency, and results and performance. In conclusion, authors suggested solution for nomination of leaders and managers to command positions. 展开更多
关键词 leaders and managers skills competences targeted interview discussion experience commandpositions OFFICERS
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Culture-Based Leadership for School Principal in the Era of Millennial Generation in ASEAN
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作者 Agustinus Hermino 《Journal of Environmental Science and Engineering(B)》 2020年第3期114-126,共13页
The era of the AEC(ASEAN Economic Community)is an era of regional globalization,and this needs to be examined carefully in the world of education in Indonesia so that Indonesia’s HRs(Human Resources)are ready to face... The era of the AEC(ASEAN Economic Community)is an era of regional globalization,and this needs to be examined carefully in the world of education in Indonesia so that Indonesia’s HRs(Human Resources)are ready to face increasingly fierce competition with other countries.In this regard,it is necessary to lead a culture-based education leader at the school level to produce quality education that is able to produce students who have personality integrity,disciplined attitude,and are creative,innovative,and competitive.Education in ASEAN countries has now entered the era of globalization,where one of them is marked by the ease in which people get information from various parts of the world as a result of rapid technological developments.This has both positive and negative influences on those who receive it.The positive influence of globalization on changes in values and attitudes causes a shift in values and attitudes of all irrational people to be rational while the negative influence of globalization on society is that people feel facilitated with advanced technology that makes them feel they no longer need others in their activities,where sometimes they forget that they are social beings who need to interact with one another. 展开更多
关键词 Culture-based leaders globalization quality of education
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Leaders' Inscriptions for CAFST
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《China's Foreign Trade》 2003年第6期8-8,共1页
关键词 for Inscriptions for CAFST leaders
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基于改进Leaders算子的审计潜在疑点发现
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作者 邵锦炜 林俊 +1 位作者 刘雅婷 肖嘉丽 《计算机与现代化》 2018年第4期79-83,共5页
数据库查询方法审计疑点发现依赖于审计人员先验知识,当经验不足且审计数据量巨大时,难以发挥大数据优势并从海量数据中发现疑点。为解决这一问题,提出基于改进Leaders算子迭代聚类的审计大数据潜在疑点发现方法。该方法在无先验知识的... 数据库查询方法审计疑点发现依赖于审计人员先验知识,当经验不足且审计数据量巨大时,难以发挥大数据优势并从海量数据中发现疑点。为解决这一问题,提出基于改进Leaders算子迭代聚类的审计大数据潜在疑点发现方法。该方法在无先验知识的情形下,通过Leaders算法自动完成审计大数据的初始聚类,在此基础上通过随机抽样融合方法对初始聚类结果优化,最后通过多次迭代聚类的方法,对实例数较少或可疑程度易被掩盖的小簇进一步聚类,实现审计大数据的精确聚类,并将实例较少且行为明显异常的数据聚类识别为潜在疑点,配合审计人员审计经验快速精确定位审计疑点。实验结果验证了算法的有效性,表明算法有助于从海量数据中自主发现审计疑点,缩小疑点筛查范围,提高审计效率。 展开更多
关键词 计算机辅助审计 潜在审计疑点发现 改进leaders算子 抽样融合 迭代聚类
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