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1.
This paper deals with the development of scientific policy advice by providing a methodology to foster a social learning process. The methodology, called participatory Sustainability Impact Assessment (pSIA), aims to structure complex problem situations, to clarify interests and basic assumptions, to interpret scientific studies, to develop impact assessment, and to explore sensitivity of uncertainty and lack of information. In pSIA workshops the participants are supposed to build conceptual models with different modelling methods, like System Dynamics, Value Chain Analysis, and Morphological Analysis. A case study is presented that describes a workshop series with political as well as academic actors, applying the pSIA approach to an impact assessment of Economic Partnership Agreements between the European Union and the Eastern and Southern Africa Region.
Manuel GottschickEmail: URL: www.agchange.de
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2.
从历史起源、近代发展、当前状态等方面简要地讨论了社会物理学的意义和作用,并从物理学、社会学和哲学的角度进行了阐述.重点是根据 Popper关于现实的三个世界模型,特别是作为世界3的人工世界,对社会物理学进行重新认识,试图理清三个世界与社会物理、社会心理、社会计算和人工社会、计算实验、平行系统之间的内在联系.还探讨了力学和控制中的一点概念和方法在社会物理学中的应用问题.  相似文献   

3.
基于案例学习和目标驱动学习的观点生成框架   总被引:3,自引:0,他引:3  
群体观点生成是观点评价和群体一致性意见达成的基础.本文提出基于案例学习和目标驱动学习的观点生成框架,将人工智能技术集成入群体决策支持系统中,通过动态问题分解过程、多案例经验学习过程、主动的目标驱动学习过程的协调运作,既支持初始观点生成,又支持观点的修改与扩充.本文采用描述性智能辅助技术,使得观点生成的智能辅助方法不仅易实现,而且具有高度的灵活性和适应性.  相似文献   

4.
5.
SWOT营销战略分析模型   总被引:27,自引:0,他引:27  
本文采用定性分析与定量分析相结合, 运用德尔菲法、矢量、梯度、极坐标及四半维坐标系等数学工具, 提出优势、劣势、机会、威胁力度以及战略强应、战略强度系数等概念, 构造一个SWOT营销战略分析的定量模型, 使营销战略分析科学化。  相似文献   

6.
Contrastive learning, a self-supervised learning method, is widely used in image representation learning. The core idea is to close the distance between positive sample pairs and increase the distance between negative sample pairs in the representation space. Siamese networks are the most common structure among various current contrastive learning models. However, contrastive learning using positive and negative sample pairs on large datasets is computationally expensive. In addition,there are c...  相似文献   

7.
With the development of the electronic commerce, the electronic word-of-mouth(e WOM)has become important reference information for consumer shopping. EWOM has attracted considerable interest from researchers in the past decade. In this paper, a research review is conducted and an integrated framework is proposed on the effect of e WOM. The effect of e WOM are influenced by its characteristics, communicators, and other factors. The characteristics of e WOM include the source,the volume and the valence. The communicators of e WOM refer to the sender, the receiver and the relationship between them. In addition, dispersion and consistency, persistence and observability,anonymity and deception, and community engagement are related factors for the effect of e WOM.  相似文献   

8.
加快神经网络学习的梯度幂次法   总被引:1,自引:0,他引:1  
分析了前向神经网络极值点附近的性态,指出基本BP算法用于分类问题时收敛缓慢的原因.我们利用梯度模的幂次去修改学习率,仿真结果表明,将此方法用于分类问题的训练时,收敛速度明显优于基本的BP算法.  相似文献   

9.
分析了一个多产品联合订货库存模型的绩效.该模型采用连续检查的QS库存策略.文中假设当出现缺货时,不能被立即满足的顾客将会流失,这是与以往研究的最大区别,也是本文的主要贡献.作者假设遇到缺货的顾客流失,对提前期内的在途订单作出一定假设,着重分析了在联合订单中,各种产品订货量的分布情况.随后将多产品联合订货问题分解成多个单产品的库存模型进行分析,给出了销售商总成本的解析表达式.最后,作者提出了进一步研究的方向.  相似文献   

10.
Critical systems thinking (CST) and community based participatory research (CBPR) are distinct approaches to inquiry which share a primary commitment to holism and human emancipation, as well as common grounding in critical theory and emancipatory and pragmatic philosophy. This paper explores their intersections and complements on a historical, philosophical, and theoretical level, and then proposes a hybrid approach achieved by applying CBPR’s principles and considerations for operationalizing emancipatory practice to traditional systems thinking frameworks and practices. This hybrid approach is illustrated in practice with examples drawn from of the implementation of the learning organization model in an action research setting with the Autistic community. Our experience of being able to actively attend to, and continuously equalize, power relations within an organizational framework that otherwise has great potential for reinforcing power inequity suggests CBPR’s principles and considerations for operationalizing emancipatory practice could be useful in CST settings, and CST’s vocabulary, methods, and clarity around systems thinking concepts could be valuable to CBPR practitioners.  相似文献   

11.
This paper presents a conceptual framework for the systemic study of community organizations (COs) in contemporary societies. This framework is made up of two ideal-type models of COs. These models are structured around the notions of rights, social interaction, and the State. The first ideal-type model is based on a liberal conception of society, and the second model is grounded on communicative ethics as developed by Habermas for contemporary deliberative democracy. The relevance and limitations of such interpretive framework are discussed when a brief exploration on the social meaning of COs in Venezuela unveils grounds for further questioning about the role of COs in contemporary society.  相似文献   

12.
李锋  魏莹 《系统仿真学报》2022,34(2):234-246
消费者从用户评价中获得更准确的产品质量水平被称为社会学习行为。当学习得到的产品质量高于自己的心理预期,多数消费者会更倾向购买产品,即参照点效应。为了研究社会学习行为中的参照点效应对企业产品决策的影响,构建研究问题的多智能体模型,通过仿真实现问题求解。结果表明,参照点效应对企业产生负面影响,企业被迫提高产品质量和价格,并获得更少的利润。然而,如果考量产品的销售量,企业能够通过相对较低的产品质量和价格,以少量的利润损失获得销售量的大幅增加。  相似文献   

13.
Community-based service learning helps students link subject matter to everyday life and developing sense of responsibility to their community. Corporate social responsibility (CSR) is a form of corporate self-regulation integrated into a business model. Both promote civic engagement but the two hardly come across each other. We explore the process that enriched service learning with its diversity by combining CSR practices of a multinational software company. It begins by exploring different forms of action research with a focus on action engagement to improve students’ involvement in marginalized communities. The article provides field-based reflections of the sustained engagement and suggests ways in which service learning experiences may create rooms for innovation and growth in the non-profit sector, local communities, businesses, and students themselves.  相似文献   

14.
研究混沌系统广义同步问题的一种解析方法   总被引:3,自引:1,他引:3  
提出了采用解析方法研究非线性单向耦合下连续混沌系统的广义同步问题 ,采用适当的耦合方式使两个处于混沌状态的系统的线性组合满足另一个具有稳定平衡点的系统 ,由于新的组合系统趋于稳定平衡点 ,从而实现了混沌的广义同步。将这种方法应用于Lorenz系统的广义同步 ,结果表明该方法有较好的同步效果 ,且对系统参数的变化具有鲁棒性  相似文献   

15.
区间数排序方法研究综述   总被引:53,自引:1,他引:53  
研究区间数排序方法问题。有关区间数的研究近年来受到了人们的关注,其理论方法应用的研究已获得了一些成果。介绍区间数的定义和二元运算关系,简要评述区间数排序方法。  相似文献   

16.
Systemic Practice and Action Research - There has been strong research interest in designing and testing learning approaches for enhancing and sustaining the capacity of communities to manage...  相似文献   

17.
This paper investigates why and how systems approaches can help in evaluating the design of new Information and Communication Technologies (ICTs) as social learning platforms. It focuses on the prototypes created by the research project Virtualis, whose objective is to promote social learning on environmental concepts and practices amongst a variety of stakeholders. The paper presents the principles of systems thinking and practice that did help in formulating such evaluation processes. It illustrates how both a peer systemic evaluation process (within the research team) and a participatory evaluation process (involving potential future users of the ICTs) were carried out.  相似文献   

18.
针对当前复杂仿真系统评估的滞后性问题,提出了基于可接受性标准(Acceptability Criteria,AC)的仿真在线评估方法。通过定性和定量AC到指标的映射模型来建立评估指标体系;引入指标集和评估函数,提出了仿真评估流程有限自动机七元组模型,给出仿真流程到评估自动机的映射关系和基于数据驱动的状态转移机制,实现评估过程自动化执行过程;基于上述成果设计了在线评估工具,通过案例验证了在线评估方法的有效性,表明该方法能够有效解决仿真系统评估滞后性问题。  相似文献   

19.
城市外围停车换乘设施换乘效率公众评价的结构方程模型   总被引:3,自引:0,他引:3  
在停车换乘设施评价中引入公众参与,增强评价的客观性,最大程度地体现社会公平,从而使得决策更为有效。本文从公众评价的角度,在城市外围小汽车出行者停车换乘出行特点和换乘设施服务水平分析的基础上,建立了小汽车出行者对城市外围停车换乘设施换乘效率评价的结构方程模型,并对模型的识别、拟合、修正和应用进行了阐述。  相似文献   

20.
模糊判断矩阵排序方法研究的综述   总被引:47,自引:2,他引:47  
有关模糊判断矩阵的研究近年来受到人们的关注,其理论与方法的研究已获得一些成果。首先对模糊判断矩阵及其安全一致性等概念进行了介绍,然后简要地概括和评述了模糊判断矩阵的排序方法,最后给出了计算实例说明。  相似文献   

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