基于交互意见和地位理论的符号网络链接预测模型

随着社会网络的普遍和流行,社会网络为符号网络(signed network)的深入研究提出了更多的全新问题,其中链接预测是符号网络研究的核心问题之一.交互意见和地位理论能够较好地解释符号网络中链接关系的构建和链接的符号属性,二者作为链接构建的诱因为提高链接预测的质量提供了理论基础.因此,通过研究交互意见和地位理论与链接关系的强相关性,构建符号网络链接预测模型.首先,利用交互意见增强待分解矩阵的可靠度,弥补由地位理论的对称性所带来的局限性;然后,在稀疏学习矩阵分解模型基础上,将交互意见建模为增强可靠度因子,同时将地位理论建模为稀疏学习模型的正则化项;最后,构建基于交互意见和地位理论的符号网络链接预测模型MF-SI.实验结果表明相比于其他基本方法,MF-SI模型获得了较好的预测质量,说明集成交互意见和地位理论能够较好地实现符号网络链接预测问题.     

第三次古建园林学术讨论会总结报告

第三次古建园林学术讨论会,交流了论文三十七篇,举行了四次学术讲座,大会取得圆满成功。学者、专家在大会和分组讨论会上,畅谈了继承、发展、弘扬中国传统建筑文化的重要性和必要性。大会提出要发挥专业学术团体的优势,在传统建筑风格继承、古建文物保护、建筑理论研究等方面集中力量啃下这几块“硬骨头。同时应加强古建维修工程管理水平和技术水平。     

Divisional structure: An identity crisis.

An investigation was undertaken of the opinion of C.P.A. members towards implementation of divisional structure for the Association. Findings showed agreement on the needs for divisional structure, especially as these relate to applied interests, but little consensus on a form of divisional structure. Alternative recommendations were made. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

An Opinion on Expressing Opinions to Influence Social Policy.

First, I would like to commend C. Hosticka, M. Hibbard, and N. Sundberg ("Improving psychologists' contributions to the policymaking process," in Professional Psychology: Research & Practice. Vol 14(3), June, 1983, pp. 374-385) on their presentation of the role of the psychologist as scientist to the policy-making process. They treated the subject in a thorough and professional manner. I do, however, have a minor clarification that I believe is important to consider when psychologists attempt to contribute to the formation of public policy. This clarification has to do with the tertiary nature of the professional psychologist--that is, the psychologist as scientist, as practitioner, and as human being. Hosticka et al. do an admirable job of delineating the many problems that confront the psychologist who attempts to influence public policy as a scientist/researcher. However, they neglect to mention the role of the psychologist as a practitioner/clinician or as a human being/citizen. Granted, these roles are probably less complex and perhaps require less attention. Nonetheless, they do warrant at least a cursory review. As scientists, psychologists conduct research in order to accumulate scientific evidence that can be given to policymakers in an effort to influence policy decisions. As practitioners, psychologists have taken a clinical pledge to help others through their potential emotional reactions to public policy. Finally, as human beings, psychologists are free to express opinions and spew out personal beliefs with respect to public policy. However, one note of caution is recommended, that is, we ought not confuse the three roles. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

浅析社会群体性事件网络舆论的成因

社会群体性事件网络舆论形成的原因是多方面的,它既与事件本身的社会影响力有着休戚与共的密切联系,也与社会公众的判断力和参与程度密不可分。利益相关、价值共振和情感共鸣,是网络舆论活动形成和产生的社会学和心理学原因。网络舆论对社会群体性事件的发展和处置既能发挥积极的正面作用．也会产生消极的负面影响。正确认识网络舆论影响群体性事件的方式及所产生的作用。对提高社会管理科学化水平及维护社会公平正义方面所发挥的整合民心、凝聚民意和民智的独特作用具有重要的理论和现实意义。     

The minimum cost consensus model considering the implicit trust of opinions similarities in social network group decision-making

The social network group decision-making is popular due to the advantages of social relationships in the consensus reaching process, especially the trust relationships. To explore the effects of trust on consensus, some minimum cost consensus models are proposed based on implicit trust between individuals and the moderator. The implicit trust is computed based on the similarity of opinions and it is implied into the traditional minimum cost consensus model to obtain a new quadratic programming problem and the related dual problem. The weights of individuals can be determined based on implicit trust and can be used to modify the possible deviations among individuals’ adjustment costs. A numerical example and the comparative analysis are given to analyze the effectiveness of the proposed models, which suggests that individuals are willing to give up some benefit to reach consensus due to their implicit trust to the moderator and make minor revisions to their adjustment costs due to their implicit trust to each other.     

Driver opinions and reported performance under various interchange marking and nighttime visibility conditions.

Which of 5 ways of marking and lighting a cloverleaf highway interchange works best? 1137 motorists, most of which were highly familiar with the interchange, were interviewed after using it during the experiment. "The over-all results of this study suggest that reflectorization as well as illumination can be regarded as an effective means of reducing driving problems related to nighttime visibility conditions." From Psyc Abstracts 36:04:4LN70D. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Fuzzy consensus measure on verbal opinions

In the group decision-making process, consensus is an important indication of group agreement or reliability. Traditional methods to measure consensus refer mostly to gauging variance among the participants’ opinions by transforming them into numbers in the interval scale. In this study we propose a new value-based measure, in which verbal opinions are transformed into values by means of fuzzy membership functions. To understand how the proposed method performs, we conduct two experiments to compare its performance with the variance-based methods and entropy measure. The results show that our method is more appropriate to account for participants’ consensus judgments based on verbal opinions.     

智能卡上椭圆曲线标量乘差分错误分析攻击研究

由于网络舆情态势理解模式中各属性之间具有一定的相关性,网络舆情态势理解可以看成一个关联的多属性决策问题。考虑到模糊测度和模糊积分处理关联的多属性决策问题的优势,文章提出一种基于模糊积分的网络舆情态势理解方法。该方法利用Choquet模糊积分融合网络舆情话题的倾向性、关注度、敏点及焦点4个属性,分析话题与公众之间联系的紧密程度,实例验证了方法的正确性和有效性。     

建设造纸林基地的探索

阐述了营林股份制林场的发展思路和运营经验，及进一步发展完善的意见和建议。