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   

Coupled matrix factorization and topic modeling for aspect mining     

Ding Xiao  Yugang Ji  Yitong Li  Fuzhen Zhuang  Chuan Shi 《Information processing & management》2018,54(6):861-873

Aspect mining, which aims to extract ad hoc aspects from online reviews and predict rating or opinion on each aspect, can satisfy the personalized needs for evaluation of specific aspect on product quality. Recently, with the increase of related research, how to effectively integrate rating and review information has become the key issue for addressing this problem. Considering that matrix factorization is an effective tool for rating prediction and topic modeling is widely used for review processing, it is a natural idea to combine matrix factorization and topic modeling for aspect mining (or called aspect rating prediction). However, this idea faces several challenges on how to address suitable sharing factors, scale mismatch, and dependency relation of rating and review information. In this paper, we propose a novel model to effectively integrate Matrix factorization and Topic modeling for Aspect rating prediction (MaToAsp). To overcome the above challenges and ensure the performance, MaToAsp employs items as the sharing factors to combine matrix factorization and topic modeling, and introduces an interpretive preference probability to eliminate scale mismatch. In the hybrid model, we establish a dependency relation from ratings to sentiment terms in phrases. The experiments on two real datasets including Chinese Dianping and English Tripadvisor prove that MaToAsp not only obtains reasonable aspect identification but also achieves the best aspect rating prediction performance, compared to recent representative baselines.  相似文献   

刘基《春秋明经》若干问题探究     

郑任钊 《浙江工贸职业技术学院学报》2011,11(3)

刘基《春秋明经》是为举业而作,有因循《春秋胡氏传》的思想内容,也有超越《胡传》的思想内容,研究《春秋明经》的思想需要与《胡传》进行对比甄别。《春秋明经》在夷夏问题上,坚持以夷夏之辨为礼义之辨,没有狭隘的民族观念。《春秋明经》的天人感应说承自《胡传》,与刘基自己的天人感应观念有区别。《春秋明经》的著作年代应当在青年时期。  相似文献   

科技期刊手机传播的发展设想     

罗丽庆 《青岛职业技术学院学报》2011,24(5):70-72

手机传播不仅是对科技期刊传统出版的简单延伸,更是在资源配置上的有效互动、取长补短。传统出版和手机传播的共赢模式可以增强期刊社的核心竞争力。科技期刊工作者应加大对科技期刊手机传播的研究,以提高我国科技期刊数字出版的技术水平和国际竞争力。中国科技期刊在实现手机传播的过程中,应做出相应的战略部署,并根据手机传播的技术需要调整和改进编辑出版规范,达到科技期刊纸质版、数字版与手机版(无线数字版)相互促进的良性互动。  相似文献   

新中国成立之初的外交形象塑造     

程珂 《徐特立研究(长沙师范专科学校学报)》2006,(1):84-87

面对驱除旧中国屈辱的外交形象和赢得国际社会理解与认同的要求，新中国提出了主动塑造外交新形象的思想，设计了新的外交形象的基本内涵，规定了塑造者的基本素质，确立了塑造的基本原则，对外交形象作了全新的塑造，使新中国获得了并不完全与国力相称的良好的外交形象。  相似文献   

大学生软技能自我评价的调查分析     

郭德侠  崔艳  李洁 《高等理科教育》2021,(2):45-52

大学生软技能水平对其职业发展有重要的影响。通过对大学生软技能自我评价的问卷调查,发现大学生在软技能的某些方面具有一定的优势,但也存在诸多问题和不足,如自信心不足、批判性思维能力、创新意识及能力、沟通交流能力和组织管理能力不强等。针对这些问题,文章从高校人才培养的视角,提出了相应的对策和建议。  相似文献   

Foreword to the Special Issue on Photocatalysis     

Zhang  Tierui  Wang  Feng 《天津大学学报(英文版)》2021,27(4):279-279

Transactions of Tianjin University -  相似文献   

BHP:孤独症患者观点采择训练新方法     

刘园芳  白晓宇  林凡裕  祝卓宏  李新影 《中国特殊教育》2021,(1)

观点采择是个体社交能力的基础。关系框架理论RFT认为观点采择是一种操作性行为,其核心是包含人际、空间及时间三个维度的直证关系反应。基于RFT的评估和训练方案BHP采用多范例的方式来训练直证关系反应,从而促进观点采择。采用BHP方案训练孤独症儿童观点采择的多项研究发现,该方案能有效提升被试的观点采择能力,并有较好的维持和泛化效果,为孤独症儿童的社交能力发展奠定基础。本文通过介绍和批判性分析BHP及相关研究,为我国孤独症儿童观点采择训练提供新思路和新选择。  相似文献   

我国农村学前教育政策的进展与成效     

刘晓楠 《大连教育学院学报》2021,(1):67-70

梳理我国近十年颁布的学前教育政策文本,发现农村学前教育政策从外部看具有数量多、发文层级高、互相支撑与呼应等特点,从内部看呈现目标清晰、重点突出、职责明确等特征。农村学前教育相关政策体系的整体性持续加强,未来发展的基调和方向逐渐明晰,进一步融入乡村振兴和扶贫攻坚发展战略中,并与政策研究相互支撑形成良性互动。有必要进一步明晰政策方向、优化内容体系、强化执行监督,为我国农村学前教育扩容提质、推进学前教育公平、实现"幼有所育"保驾护航。  相似文献   

CRISPR/Cas: a Nobel Prize award-winning precise genome editing technology for gene therapy and crop improvement     

Li  Chao  Brant  Eleanor  Budak  Hikmet  Zhang  Baohong 《Journal of Zhejiang University. Science. B》2021,22(4):253-284

Since it was first recognized in bacteria and archaea as a mechanism for innate viral immunity in the early 2010 s,clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated protein(Cas) has rapidly been developed into a robust, multifunctional genome editing tool with many uses. Following the discovery of the initial CRISPR/Cas-based system, the technology has been advanced to facilitate a multitude of different functions. These include development as a base editor, prime editor, epigenetic editor, and CRISPR interference(CRISPRi) and CRISPR activator(CRISPRa) gene regulators. It can also be used for chromatin and RNA targeting and imaging. Its applications have proved revolutionary across numerous biological fields, especially in biomedical and agricultural improvement. As a diagnostic tool, CRISPR has been developed to aid the detection and screening of both human and plant diseases, and has even been applied during the current coronavirus disease 2019(COVID-19) pandemic. CRISPR/Cas is also being trialed as a new form of gene therapy for treating various human diseases, including cancers, and has aided drug development. In terms of agricultural breeding, precise targeting of biological pathways via CRISPR/Cas has been key to regulating molecular biosynthesis and allowing modification of proteins, starch, oil, and other functional components for crop improvement. Adding to this, CRISPR/Cas has been shown capable of significantly enhancing both plant tolerance to environmental stresses and overall crop yield via the targeting of various agronomically important gene regulators. Looking to the future, increasing the efficiency and precision of CRISPR/Cas delivery systems and limiting off-target activity are two major challenges for wider application of the technology. This review provides an in-depth overview of current CRISPR development, including the advantages and disadvantages of the technology,recent applications, and future considerations.  相似文献