全文获取类型
收费全文 | 178篇 |
免费 | 5篇 |
国内免费 | 4篇 |
专业分类
财政金融 | 9篇 |
工业经济 | 22篇 |
计划管理 | 51篇 |
经济学 | 13篇 |
综合类 | 28篇 |
运输经济 | 5篇 |
旅游经济 | 13篇 |
贸易经济 | 19篇 |
农业经济 | 6篇 |
经济概况 | 21篇 |
出版年
2024年 | 1篇 |
2023年 | 4篇 |
2022年 | 2篇 |
2021年 | 5篇 |
2020年 | 5篇 |
2019年 | 2篇 |
2018年 | 5篇 |
2016年 | 5篇 |
2015年 | 3篇 |
2014年 | 12篇 |
2013年 | 18篇 |
2012年 | 17篇 |
2011年 | 21篇 |
2010年 | 16篇 |
2009年 | 8篇 |
2008年 | 7篇 |
2007年 | 5篇 |
2006年 | 18篇 |
2005年 | 7篇 |
2004年 | 6篇 |
2003年 | 8篇 |
2002年 | 2篇 |
2001年 | 1篇 |
1999年 | 2篇 |
1997年 | 3篇 |
1995年 | 2篇 |
1993年 | 1篇 |
1991年 | 1篇 |
排序方式: 共有187条查询结果,搜索用时 31 毫秒
21.
从应用的角度,以电脑话务员为主线,讨论了语音合成技术的理论依据和实现情况,并对不同时期和不同种类电脑话务员语音技术的解决方法进行了评述。 相似文献
22.
探讨了C“中单位球面S上Berezin变换和Toeplitz算子的性质,证明了由{Tφ,φ∈L^n(S)|所生成的C^n-代数(L^∞(S))中算子T的符号恰好为单位球B上函数T(称为T的Berezin变换)的非切向边界值。 相似文献
23.
受当下企业产业链扩展的影响,制造业正处于转型升级的关键时期,服务型制造业已成为制造企业获取市场竞争优势的主要手段,主要为客户提供产品服务方案来满足客户个性化需求,产品模块与服务模块如何组成已成为决定服务型制造企业能否转型成功的关键所在。本文以产品服务系统方案的形成过程为基础,刻画了产品模块与服务模块的选取过程,基于Choquet积分算子构建了在产品服务属性相关联下的产品模块与服务模块的决策模型,并给出了相应求解方法,最后通过算例验证了该理论的实践性。研究结果表明:产品模块与服务模块属性的关联性有助于实施产品服务方案,解决客户问题。 相似文献
24.
有序加权几何平均(OWGA)算子是一种能有效地集结数据信息的方法。在多人决策中有时需要不同专家对决策方案进行两两比较给出互反判断矩阵的偏好信息,为了反映群体的共同偏好,可以利用OWGA算子对互反判断矩阵进行集结处理得到组合判断矩阵。文章利用这一算子建立村民评委对村干部年终业绩优劣评价排序的数学模型,最后进行了实例分析。 相似文献
25.
Shark-diving tourism provides important economic benefits to the Maldives. We examine the link between shark conservation actions and economic returns from diving tourism. A combined travel cost and contingent behaviour approach is used to estimate the dive trip demand under different management scenarios. Our results show that increasing shark populations could increase dive-trip demand by 15%, raising dive tourists’ welfare by US$58 million annually. This could result in annual economic benefits for the dive-tourism industry of >US$6 million. Conversely, in scenarios where shark populations decline, where dive tourists observe illegal fishing, or if dive operators lack engagement in shark conservation, dive trip demand could decrease by up to 56%. This decline causes economic losses of more than US$24 million annually to the dive tourism industry. These results highlight the dependence of the shark-diving industry on the creation and enforcement of appropriate management regimes for shark conservation. 相似文献
26.
《Socio》2020
Data envelopment analysis (DEA) has recently become relatively popular with road safety experts. Therefore, various decision-making units (DMUs), such as EU countries, have been assessed in terms of road safety performance (RSP). However, the DEA has been criticized because it evaluates DMUs based only on the concept of self-assessment, and, therefore does not provide a unique ranking for DMUs. Therefore, cross efficiency method (CEM) was developed to overcome this shortcoming. Peer-evaluations in addition to self-evaluation have made the CEM to be recognized as an effective method for ranking DMUs. The traditional CEM is based only on the standard CCR (Charnes, Cooper and Rhodes) model, and it evaluates DMUs according to their position relative to the best practice frontier while neglecting the worst practice frontier. However, the DMUs can also be assessed based on their position relative to the worst practice frontier. In this regard, the present study aims to provide a double-frontier CEM for assessing RSP by taking into account the best and worst frontiers simultaneously. For this purpose, the cross efficiency and cross anti-efficiency matrices are generated.Even though a weighted average method (WAM) is most frequently used for cross efficiency aggregation, the decision maker's (DM) preference structure may not be reflected. For this reason, the present study mainly focuses on the evidential reasoning approach (ERA), as a nonlinear aggregation method, rather than the linear WAM. Equal weights are often used for cross efficiency aggregation; consequently, the effect of the DM's subjective judgments in obtaining the overall efficiency is ignored. In this respect, the minimax entropy approach (MEA) and the maximum disparity approach (MMDA) are applied for determining the ordered weighted averaging (OWA) operator weights for cross efficiency aggregation. The weighted cross efficiencies and cross anti-efficiencies are then aggregated using the ERA. Finally, the proposed method, called DF-CEM-ERA, is used to evaluate the RSP of EU countries as well as Serbian police departments (PDs). 相似文献
27.
Ming Zhao 《Enterprise Information Systems》2020,14(2):196-220
ABSTRACTA compact cat swarm optimization scheme (cCSO) is proposed in this paper, which is designed to solve application domains plagued with limited memory and less-computation power, as a member of cat swarm optimization algorithms (CSO), it composes of two sub-modes, i.e., tracing and seeking modes, so it keeps the same search logic of CSO. On the other hand, cCSO inherits the main feature of compact algorithms, a normal probabilistic model is used to represent the population of solutions instead of processing an actual population, which ensures the cCSO to have the modest memory requirement. The updating vector for the probabilistic model provides a clear moving direction for cats in next step. A cat without historical position and velocity is applied in the algorithm. When the cat is in seeking mode, it employs a differential operator to update the cat’s position, which makes it possible for the cat to have multiple searching directions. Experimental results show that cCSO has pretty performance compared with respect to some population-based testing benchmarks. And it also shows superior performance in convergence rate to some compact optimization algorithms. The case study of gray image segmentation proves that it suits for solving the optimization problem by limited hardware. 相似文献
28.
互联网平台发展壮大的同时垄断问题也引起全世界反垄断执法机构的关注。尽管《反垄断法》的修订回应了公众对数字领域垄断问题的部分关切,但传统事先申报标准无法满足互联网平台反垄断执法需求,且实质性审查制度在新业态下陷入失灵,大量大型平台企业并购初创企业案件长期逃脱反垄断审查。为此,可以通过修正申报标准、完善相关市场界定、重塑反竞争评估、优先适用行为性限制条件以及构建长效监管机制来规制扼杀式并购行为。 相似文献
29.
徐阳 《安徽工业大学学报(社会科学版)》2010,27(3):45-47
内部控制与公司治理是密不可分的两个概念,两者是制度环境与内部管理监控系统的关系。良好的内部控制框架是公司法人主体正确处理各利益相关者关系、实现公司治理目标的重要保证。加强内部控制、完善公司治理,应建立健全组织机构、完善内控机制,确立董事会在内控框架构建中的核心地位,强化对经营者的激励和监督。 相似文献
30.
薪酬机制是国有企业改革中的难点问题,如何发挥薪酬作为国有企业经营者提升企业业绩的激励作用更是建立科学、公平的国有企业薪酬机制的焦点问题。文章通过对2005年~2006年国有上市公司的实证分析得到企业规模、净资产收益率、所在区域、国家股比例和经营者任期是国有企业经营者薪酬水平的决定因素,而独立董事和监事会并没有发挥应有作用。对薪酬激励效应实证的结果表明,国有企业经营者年薪和持股比例的激励效应较强,高管团队的薪酬差距也有助于企业业绩提升。 相似文献