首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   14篇
  免费   0篇
管理学   4篇
民族学   2篇
理论方法论   2篇
综合类   2篇
社会学   3篇
统计学   1篇
  2019年   1篇
  2016年   1篇
  2013年   3篇
  2008年   1篇
  2006年   1篇
  2002年   1篇
  2001年   1篇
  1999年   1篇
  1986年   1篇
  1985年   1篇
  1984年   1篇
  1980年   1篇
排序方式: 共有14条查询结果,搜索用时 319 毫秒
1.
This article measures the degree to which academic economists have engaged in unethical behavior and the degree to which academic economists believe the profession as a whole engages in unethical behavior. Three main types of unethical behavior are examined: (1) falsification of research; (2) expropriation of graduate student research or including an undeserving co-author on a research paper; and (3) exchange of grades for gifts, money, or sex. Using a unique data set gathered at the 1998 American Economic Association (AEA) meetings, we find that there is a significant amount of misconduct, particularly in the second category.  相似文献   
2.
We present APproximated Exhaustive Search (APES), which enables fast and approximated exhaustive variable selection in Generalised Linear Models (GLMs). While exhaustive variable selection remains as the gold standard in many model selection contexts, traditional exhaustive variable selection suffers from computational feasibility issues. More precisely, there is often a high cost associated with computing maximum likelihood estimates (MLE) for all subsets of GLMs. Efficient algorithms for exhaustive searches exist for linear models, most notably the leaps‐and‐bound algorithm and, more recently, the mixed integer optimisation (MIO) algorithm. The APES method learns from observational weights in a generalised linear regression super‐model and reformulates the GLM problem as a linear regression problem. In this way, APES can approximate a true exhaustive search in the original GLM space. Where exhaustive variable selection is not computationally feasible, we propose a best‐subset search, which also closely approximates a true exhaustive search. APES is made available in both as a standalone R package as well as part of the already existing mplot package.  相似文献   
3.
The authors set out their view of the peculiar problems facing corporate planners in local government as compared with the private sector and their view of the nature of corporate planning in this special environment. By way of illustration as to how one local authority has attempted to introduce corporate planning, the article includes a case study of the City of Bradford Metropolitan Council.  相似文献   
4.
The Alvey Report has resulted in a growing interest in the UK in ‘expert systems’. It is fairly generally accepted, at least in the UK, that such systems function in a particular type of way, i.e. they arrive at decisions through a process of rule based inference. It is suggested that it may be more fruitful to regard rule based inference as one approach to the construction of expert systems, and that proven techniques of operational research may well be more useful in constructing other types of expert system. Alternative applications of expert systems are derived on the basis of a broader definition of an expert system in terms of what it does rather than how it does it. A parallel is drawn between these applications and some typical concerns of business research. It is suggested that a useful aid in identifying promising business applications of expert systems is to set up four ‘dimensions’ along which different types of system differ. Examples are given of where other techniques might conceivably be useful in applications of expert systems.  相似文献   
5.
Elissen AMJ, Van Raak AJA, Derckx EWCC, Vrijhoef HJM. Improving homeless persons' utilisation of primary care: lessons to be learned from an outreach programme in The Netherlands Faced with rising homelessness, countries around the world are in need of innovative approaches to caring for those without shelter, who, more often than not, suffer from severe health problems. We conducted a case study of an innovative Dutch Primary Care for the Homeless (PCH) programme to gain insight into clients' demographic characteristics, health problems and service use, and to develop an explanation for its success in increasing the latter. Our analyses are based on a combination of quantitative and qualitative data. The results of the study suggest that the success of the PCH programme can be explained by the providers' pragmatism and will to adapt their mode of care provision to the behavioural patterns and needs of their homeless clients.  相似文献   
6.
This paper describes the GRASP computer aided design system for modelling and evaluating industrial robot workplaces. GRASP satisfies a range of simulation needs within the context of designing, implementing and operating industrial robotic systems. The GRASP software may be used to investigate robots operating by themselves or, more likely, as part of an integrated cell. Facilities within GRASP assist workplace layout, position and velocity evaluations, clash detection and co-ordination between items. A robot library exists and is being extended, and an embryo off-line programming facility has been used under restricted conditions. GRASP has been used to help solve a wide range of practical industrial robot problems and has proved itself technically, and also as an educational tool, by showing how a proposed system would operate. The paper describes the facilities within GRASP.  相似文献   
7.
语篇翻译中的英汉衔接手段对比——布什9.11演讲分析   总被引:1,自引:0,他引:1  
衔接是为了实现语篇的连贯,是语篇重要的组成部分。英汉两种语言有着不同的衔接手段,文章通过布什9. 11演讲与其中译本的对比研究,揭示出衔接手段在英汉语篇中不同的运用和侧重,明确翻译时应根据语言各自的特点以及语篇体裁的要求,灵活变通或转换衔接手段,从而忠实再现原文。  相似文献   
8.
本文对内蒙古西部重要寺院阿拉善南寺的创建者和六世达赖喇嘛 《仓央嘉措(tshangs dbyangs rgya mtsho)传》的作者阿旺多尔济(ngag dbang rdo rje)的生平事迹作了较为系统的叙述。作者从比较多的蒙、藏、汉文献中找出有关阿旺多尔济的零散记载,把它们按年代顺序整理汇编,从而比较完整地描述了 他一生中的重要活动。这对研究六世达赖喇嘛和《仓央嘉措传》一书及其作者,有 一定的参考价值。  相似文献   
9.
10.
党内关怀的内涵、机制及其优化   总被引:6,自引:0,他引:6  
党内关怀思想的内容主要包括:政治关怀、思想关怀、精神关怀、生活关怀、心理关怀等.当前落实党内关怀思想就是要建立健全党内关怀机制.即要建立组织部门牵头抓总的领导协调机制、高效率的执行机制、强有力的经费保障机制、效果反馈评价机制以及党群互动关怀机制.党内关怀机制的优化.实际上就是不断健全完善、创新发展、提高党员参与意识和参与能力的过程.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号