基于知识图谱的组织承诺理论演变与研究趋势分析

以Web of Science的SCI、SSCI数据库中1997-2012年的组织承诺相关文章为研究对象,从文献计量学角度,运用信息可视化方法,绘制科学知识图谱,展示了组织承诺理论的研究自2005年之后,越来越受到人们的关注。通过引文的共引分析,研究该领域的知识演进过程,通过主题词共现分析和突现词探测分析,发现组织承诺研究的热点主要集中在工作满意度、人员流动意向、员工满意度方面,研究前沿主要集中在专业人才等特殊群体的组织承诺研究,以及新型管理手段和人性化管理对组织承诺的影响等。作为一种重要的态度变量,组织承诺可以预测员工的工作绩效、工作满意度和工作退出行为,对企业核心员工的保留以及绩效管理具有重要的现实意义。     

房屋共有建筑面积分摊模型研究

本文由房屋共有建筑面积的分摊原则入手,通过分析房屋的分摊关系及共有建筑面积的分摊类型,提出了一种通用的、符合《规范》及程序运算要求的共有建筑面积分摊模型,实际应用证明了该模型的实用性和有效性。     

Linkage Disequilibrium Mapping of Disease Susceptibility Genes in Human Populations

The paper reviews recent work on statistical methods for using linkage disequilibrium to locate disease susceptibility genes, given a set of marker genes at known positions in the genome. The paper starts by considering a simple deterministic model for linkage disequilibrium and discusses recent attempts to elaborate it to include the effects of stochastic influences, of drift, by the use of either Writht-Fisher models or by approaches based on the coalescence of the genealogy of the sample of disease chromosomes. Most of this first part of the paper concerns a series of diallelic markers and, in this case, the models so far proposed are hierarchical probability models for multivariate binary data. Likelihoods are intractable and most approaches to linkage disequilibrium mapping amount to marginal models for pairwise associations between individual markers and the disease susceptibility locus. Approaches to evalutation of a full likelihood require Monte Carlo methods in order to integrate over the large number of unknowns. The fact that the initial state of the stochastic process which has led to present-day allele frequencies is unknown is noted and its implications for the hierarchical probability model is discussed. Difficulties and opportunities arising as a result of more polymorphic markers and extended marker haplotypes are indicated. Connections between the hierarchical modelling approach and methods based upon identity by descent and haplotype sharing by seemingly unrelated case are explored. Finally problems resulting from unknown modes of inheritance, incomplete penetrance, and phenocopies are briefly reviewed.     

IOMAP实用程序设计

为了满足仿真系统具有对软硬件可重配置管理的性能需求,开发了IOMAP实用程序,对程序的功能、结构和工作流程进行了详细设计。设计完成的实用程序实现了可伸缩性和可维护性的设计要求,较好的满足了仿真系统的工作需要。     

思维导图在智能控制课程教学中的应用

针对智能控制课程特点和教学现状，将思维导图引入智能控制课程教学中，对帮助学生梳理思维，衔接整体知识体系、激发学习兴趣、促进教学效果的提高等方面具有重要的作用。     

Unravelling the complexity of collective mental models: A method for developing and analysing scenarios in multi-organisational contexts

In multi-organisational contexts, scenario building has been used to engage stakeholders in a critical discussion on issues of mutual importance, and to gain their support with regards to possible future responses. A review of existing literature suggests that much has been written regarding the process of scenario development and the benefits of the process, but the detailed analysis of scenario building outcomes, which encompass a large number of issues and their complex interconnections, has not been made explicit for studying and enhancing understanding of a complex societal problem. This paper presents a systematic method for analysing such complex outcomes in order to facilitate reflective thinking on important issues within the wider context for policy development. The method was employed in a series of participative scenario development workshops, which yielded several causal maps around the theme of construction industry skills. A collective map merging the individual subject-specific causal maps was created to help provide a more holistic overview of the pertinent issues surrounding the construction skills debate. The analysis of this collective map promotes a better understanding of the issue in the wider context, the consequence of possible future events and actions, and of the pre-requisition required for certain events/desired outcomes to take place. The main benefit that could be derived from the method is the opportunity to help facilitate and encourage debate and discussion amongst key stakeholders regarding scenario theme, in this case skills improvement within construction. Due to its flexibility and adaptability, the method could potentially be applied to other areas requiring longer range planning and which contain multiple stakeholder perspectives.     

数字化成图软件在公路线形设计上的应用研究

本文试图通过对地形、地籍数字化成图软件功能的改进,包括公路线形设计、纵横断面图的绘制和设计、土石方的计算与调配,以及各种数据表格的自动输出等,实现操作轻松快捷、简单准确,满足公路设计单位的需要,提高工作效率。     

《经济地理》创刊以来的知识溢出特征与变化

基于引证关系,利用知识图谱、社会网络分析等方法,对1981—2019年《经济地理》创刊以来知识溢出的特征与变化规律进行分析。经济地理学研究的专业综合性、学科交叉性特点,在《经济地理》期刊知识溢出的特征与变化中得以充分诠释。期刊知识溢出的作用与变化,不仅体现在促进作者合作网络形成与机构合作关系的深化上,也体现在对城市化、区域经济发展、区域旅游发展等研究领域的推动作用与变化上。期刊知识溢出的特征与变化在其主题构成、作者贡献、机构力量与前沿引领等的探讨中进一步得以明确。具体地,城市化研究的知识溢出作用,从城市化和城镇化、土地利用、生态环境等方面,逐渐转向新型城镇化、城市网络、生态环境、协调发展等主题;区域经济发展研究的知识溢出作用,经历了从经济联系转向产业集群、再转向空间相互作用关系的主题变化;区域旅游发展研究的知识溢出作用,则从旅游资源、旅游业、生态旅游等方面,逐步转向乡村旅游、旅游经济与协调发展等主题。以国家战略与发展政策为主要导向,促进国内经济地理学的研究与发展,是《经济地理》期刊知识溢出的核心内容与集中反映。     

人工智能辅助设计：基于深度学习的 风景园林平面识别与渲染

采用风景园林学与人工智能的跨学科研究方式,开发了一种将深度学习模型——生成对抗网络(Generative Adversarial Network,GAN)用于风景园林平面图用地识别与图像渲染的新应用场景。以325张细致标注的平面方案图建立用于深度学习的数据集,训练循环生成对抗网络(CycleGAN)实现平面图不同用地类型地块的提取任务,以及平面色块图到色彩肌理图的渲染生成。进一步从图片质量、正确规范性和色彩表达等方面评价模型的识别与渲染结果。该训练模型有潜力被应用于风景园林案例的用地类型分析及平面渲染,帮助设计师提升分析及制图效率。     

Modeling time series information into option prices: An empirical evaluation of statistical projection and GARCH option pricing model

This paper compares the empirical performances of statistical projection models with those of the Black–Scholes (adapted to account for skew) and the GARCH option pricing models. Empirical analysis on S&P500 index options shows that the out-of-sample pricing and projected trading performances of the semi-parametric and nonparametric projection models are substantially better than more traditional models. Results further indicate that econometric models based on nonlinear projections of observable inputs perform better than models based on OLS projections, consistent with the notion that the true unobservable option pricing model is inherently a nonlinear function of its inputs. The econometric option models presented in this paper should prove useful and complement mainstream mathematical modeling methods in both research and practice.