The min-p robust optimization approach for facility location problem under uncertainty

Improper value of the parameter p in robust constraints will result in no feasible solutions while applying stochastic p-robustness optimization approach (p-SRO) to solving facility location problems under uncertainty. Aiming at finding the lowest critical p-value of parameter p and corresponding robust optimal solution, we developed a novel robust optimization approach named as min-p robust optimization approach (min-pRO) for P-median problem (PMP) and fixed cost P-median problem (FPMP). Combined with the nearest allocation strategy, the vertex substitution heuristic algorithm is improved and the influencing factors of the lowest critical p-value are analyzed. The effectiveness and performance of the proposed approach are verified by numerical examples. The results show that the fluctuation range of data is positively correlated with the lowest critical p-value with given number of new facilities. However, the number of new facilities has a different impact on lowest critical p-value with the given fluctuation range of data. As the number of new facilities increases, the lowest critical p-value for PMP and FPMP increases and decreases, respectively.

     

宋代理学话语的形成

陈来认为,宋明理学之所以成为理学,全在于它形成了一套相对稳定的话语体系。深入细致地研究这一话语体系的形成过程,有利于总结和提炼中国学术思想话语体系的构型特性。杨国荣认为,对心性和体性的关注,构成了理学的重要特点。心性之学分别从人自身的存在和人与对象关系的维度展开了对意义的追寻。向世陵认为,宋代理学所创造的"成性"说奠定了理学的本体范畴,是儒学复兴的最重要理论标志;宋代理学本体论的创立使儒学在理论上真正获得了新生。孔令宏认为,宋明理学对道家、道教的吸收,丰富了儒学的体用合一论和功夫境界论,提升了儒学的哲理思辨水平,充实了儒家的思想体系,促进了儒学的新发展。     

Putting the individual and context back into national human resource development research: A systematic review and research agenda

Conceptualization of national human resource development (NHRD) emphasizes that it is an ongoing development process of the individual that is shaped by context. However, the extant literature has focused primarily on describing and evaluating NHRD policies and interventions in different countries with limited consideration of NHRD across the lifespan and the interaction of life stage with context. Using ecological systems theory (EST) and a lifespan development perspective (LDP), we present a systematic review of the NHRD literature based on 310 sources. We identify key themes and gaps in research across the lifespan and at distinct levels of the ecological system. We build on this review to suggest future research informed by both EST and an LDP. We propose a future research agenda focused on several key areas, including: the developing individual as the primary focus of NHRD; the dynamic relationship between NHRD microsystems and how this evolves over time; the exosystem and macrosystem, which provide the context of the NHRD development experience for the individual over their lifespan; and the imperatives of directing research attention to top-down and bottom-up influences within the ecological system. We also propose three methodological innovations to address many of the questions raised by our review, drawing on national archive databases, the use of historical methods and a focus on longitudinal data analysis. Finally, we highlight the practical implications of our analysis for ecosystem and microsystem NHRD actors.     

OnML: an ontology-based approach for interpretable machine learning

Journal of Combinatorial Optimization - In this paper, we introduce a novel interpreting framework that learns an interpretable model based on an ontology-based sampling technique to explain...     

流媒体及其在远程教育中的应用

流媒体文件是连续的数据流并以数据包的形式传输 ,用户不需等待下载完毕 ,便可一边下载一边播放所要点播的节目。远程教育要实现异地远程的同、异步教学 ,网络课件点播 ,网上课堂直播等都可以采用流媒体格式 ,从而能够简单有效地实现以生动的多媒体教学为主的现代远程教育