一种基于模糊语言TOPSIS的应急决策方法     

李海明  虞钢  田崇鑫  尚国彬 《中国科学院大学学报》2020,37(6):814-819

在应急决策过程中，决策信息通常具有犹豫性、模糊性和非对称性，且决策者呈现出直观、快速的语言决策偏好。提出一种基于模糊语言TOPSIS的应急决策方法，使用犹豫模糊语言术语集和二元语义表达式对高度不确定环境下的语言进行处理，提高对犹豫模糊语言信息的提取能力，生成易于理解的语言评估结果，从而辅助决策者进行快速、准确的决策判断。案例证实该方法的可行性与有效性，为解决应急决策问题提供了一种新方法。  相似文献   

The effects of a calf pump device on second half performance of a simulated soccer match in competitive youth players     

S. Béliard  J. Cassirame  G. Ennequin  G. Coratella  N. Tordi 《Journal of sports sciences》2019,37(6):708-716

During soccer matches, performance decrements have been reported that relate to both physical abilities and technical skills. To investigate the effects of low-frequency electrical stimulation LFES (VeinoplusSport®, Ad Rem Technology, France) administered during half-time recovery on performance alterations during the second half. Twenty-two highly trained young players undertook a soccer-match simulation (SAFT⁹⁰). During half-time, they were randomly assigned to LFES group or Placebo group. Each half was split into 3 bouts of 12 minutes. Following each bout, maximal strike speed (MSS), sprint test (ST), maximal sprint accelerations (MA) and metabolic power (MP) were determined in both groups. Arterial (AF) and venous flows (VF) were measured at rest and at the end of half-time. LEFS group exhibited beneficial effects on performance compared to the Placebo group with a likely effect for MSS, ST, MA, and a possible effect for MP. AF and VF increased statistically more in LEFS group compared to Placebo group. The use of specific calf-pump LFES during half-time of a youth simulated soccer match attenuated the decrease in performance during the second half compared to Placebo group. This effect is most marked at the beginning of the second half with regards to explosive parameters.  相似文献   

网络招聘文本技能信息自动抽取研究   总被引：1，自引：1，他引：0  

俞琰  陈磊  姜金德  赵乃瑄 《图书情报工作》2019,63(13):105-113

[目的/意义]针对目前网络招聘文本手工抽取技能信息无法满足大数据量分析要求的问题，提出一种针对大量网络招聘文本的技能信息自动抽取方法。[方法/过程]根据网络招聘文本的特点，利用依存句法分析选取候选技能，然后提出领域相关性指标衡量候选技能，将其融入传统的术语抽取方法之中，形成一种网络招聘文本技能信息自动抽取方法。[结果/结论]实验表明，本文提出的方法能够从网络招聘文本中自动、快速、准确地抽取技能信息。  相似文献   

Do children spend too much time in schools? Evidence from a longer school year in Indonesia     

《Economics of Education Review》2014

I examine the effects of a longer school year in Indonesia on grade repetition, educational attainment, employability, and earnings. I exploit an arbitrary rule that assigned students to a longer school year in Indonesia in 1978–1979, which fits a fuzzy regression discontinuity design. I find the longer school year decreases the probability of grade repetition and increases educational attainment; it also increases the probability of working in formal sectors and wages later in life. These results suggest the length of school years in Indonesia is not too long.  相似文献   

科技期刊编辑出版的艺术性     

陈华平 《科技通报》2006,22(2):279-282

依据科学和艺术内在本质的关联,以及科学的艺术诉求与呈现;从科技期刊编辑的主体和客体出发,阐述了科技期刊编辑出版艺术性的内涵以及在相关环节的具体表现,即科技期刊编辑出版的艺术性既指编辑产物——客体(期刊内外形式)细节、局部和整体的艺术呈现与美学蕴涵,也指编辑主体为实现这种美的个性化创造而展开的具有独创性的思维运作过程。科技期刊编辑的艺术性,成就了寓含品牌特征的个性化期刊。  相似文献   

Optimization of some factors affecting the performance of query expansion     

Young Mee Chung  Jae Yun Lee 《Information processing & management》2004,40(6):29

This paper examines the factors affecting the performance of global query expansion based on term co-occurrence data and suggests a way to maximize the retrieval effectiveness. Major parameters to be optimized through experiments are term similarity measure and the weighting scheme of additional terms. The evaluation of four similarity measures tested in query expansion reveal that mutual information and Yule's Y, which emphasize low frequency terms, achieve better performance than cosine and Jaccard coefficients that have the reverse tendency. In the evaluation of three weighting schemes, similarity weight performs well only with short queries, whereas fixed weights of approximately 0.5 and similarity rank weights were effective with queries of any length. Furthermore, the optimal similarity rank weight achieving the best overall performance seems to be the least affected by test collections and the number of additional terms. For the efficiency of retrieval, the number of additional terms needs not exceed 70 in our test collections, but the optimal number may vary according to the characteristics of the similarity measure employed.  相似文献   

应该重视科技期刊论文中的"致谢"   总被引：5，自引：1，他引：4  

张嵘 《编辑学报》2006,18(1):29-30

国内外科技期刊对文后"致谢"的重视程度差异很大,统计表明,国内外40种科技期刊中的16437篇论文,其文后有致谢内容的比例,国外超过50%,而国内仅为2%～3%.通过对国内外科技期刊论文的致谢内容、表达方式等异同点进行分析,认为:致谢不仅能体现科技论文的严谨性、真实性和科学性,而且能体现论文本身的价值和可信程度,更重要的是对他人和知识产权的尊重;因此,应该重视科技期刊论文中的致谢.提出了致谢编排的一般规范和应采取的措施.  相似文献   

科技期刊"中国标准连续出版物号"标志亟待规范   总被引：2，自引：0，他引：2  

吴江洪 《编辑学报》2006,18(3):193-194

对2005年出版的516种科技期刊的中国标准连续出版物号标志情况进行了调查.结果表明,有94.57%的期刊,其标志称呼、印刷格式和印刷位置不符合国家标准要求.对存在的问题进行了分析,并提出了相应改进措施.  相似文献   

现代科技期刊的稿流   总被引：3，自引：2，他引：1  

张众 《编辑学报》2006,18(3):167-169

稿流是物流在知识创新和传播领域中的特殊形式,而现代稿流则是基于信息化网络平台,全面集纳稿件挖掘、编辑出版、发行推广等多目标的办刊思想、稿件处理体系及新型出版机制.针对科技期刊,阐述现代稿流所具备的开放性系统、个性化服务、标准化生产、信息共享等特点,以及稿源挖掘、文稿供应、稿件管理、审查与商修、整理加工、数字出版与推介、学习型组织平台等7大功能.现代稿流将办刊活动纳入整个社会科技传播的大范畴之中,将推动科技成果的生产与传播.  相似文献   

论科技报告编辑的全方位能力   总被引：2，自引：0，他引：2  

陈卫红 《编辑学报》2006,18(2):155-156

论述提高科技报告编辑全方位能力的必要性,探讨科技报告编辑应具有的能力和素质,以及提高科技报告编辑能力的途径.  相似文献