Improved Transferability of Data‐Driven Damage Models Through Sample Selection Bias Correction

Damage models for natural hazards are used for decision making on reducing and transferring risk. The damage estimates from these models depend on many variables and their complex sometimes nonlinear relationships with the damage. In recent years, data‐driven modeling techniques have been used to capture those relationships. The available data to build such models are often limited. Therefore, in practice it is usually necessary to transfer models to a different context. In this article, we show that this implies the samples used to build the model are often not fully representative for the situation where they need to be applied on, which leads to a “sample selection bias.” In this article, we enhance data‐driven damage models by applying methods, not previously applied to damage modeling, to correct for this bias before the machine learning (ML) models are trained. We demonstrate this with case studies on flooding in Europe, and typhoon wind damage in the Philippines. Two sample selection bias correction methods from the ML literature are applied and one of these methods is also adjusted to our problem. These three methods are combined with stochastic generation of synthetic damage data. We demonstrate that for both case studies, the sample selection bias correction techniques reduce model errors, especially for the mean bias error this reduction can be larger than 30%. The novel combination with stochastic data generation seems to enhance these techniques. This shows that sample selection bias correction methods are beneficial for damage model transfer.     

集体行动视角下的制度逻辑演化机制研究

通过对我国专车服务市场制度变革过程的纵向案例研究，探讨了组织场域中的集体行动如何推动制度逻辑演化的内在机制问题。研究发现：制度逻辑的演化过程主要经历了分离、冲突和共存三种状态，不同的制度逻辑的演化是由行动主体能动性策略和资源利用所构建的集体行动模式差异性驱动的。制度变革机会的涌现促使场域中的行动主体采用协调性的集体行动模式，促成了新制度逻辑的生成，并导致了新、旧两种制度逻辑的分离；在制度变革机会变得模糊的场域中，行动主体非协调的集体行动促使新、旧两种制度逻辑之间的激烈冲突；而在制度变革机会沉没的情境下，行动主体再协调性的集体行动最终促成了新、旧两种制度逻辑的共存。研究结论对我国当前复杂制度环境下新兴业态的发展以及传统业态的协同治理提供了重要的借鉴和启示。     

突发重大疫情网络舆论的生成逻辑､演进特征与治理机制

新形势下突发重大疫情网络舆论不仅给疫情防控带来了严峻挑战，而且给维护国家意识形态安全带来了较大压力。厘清网络舆论的生成逻辑，把握网络舆论发展的演进特征，对做好网络舆论引导与谣言治理意义重大。在现代网络社会，随着交往实践的普遍进行，从现实逻辑、实践逻辑与理论逻辑来看，突发重大疫情网络舆论的生成，是网络议题、网络交往和网络传播相互作用的结果。受网络社会交往实践主体、客体、环体和介体等多种因素影响，突发重大疫情网络舆论又呈现为非线性的发展演进趋势，极易引发“蝴蝶效应”造成舆论秩序失范，甚至导致“塔西佗陷阱”的舆论信任危机，给疫情防控带来复杂变数。必须建立健全网络舆论治理机制，有效管控舆情，提高疫情防控治理水平。     

社会发展内涵探析

作为马克思主义哲学研究的社会发展，不是对具体的社会发展问题进行实证研究，而主要是运用逻辑手段，对复杂的社会发展现象进行抽象、概括，揭示出社会整体发展的普遍本质和一般规律。为了对社会发展有一个较为全面的理解，从社会、社会革命、社会变迁、社会转型与社会发展之间的关系入手进行了探讨。     

进化论思潮与唯物史观的传播——近代中国两大思想关系刍议

进化论思想与唯物史观同为近代中国影响广泛的思想。二者的传入时间接近，并且都经历了中国化的过程。随着进化论思想在现代遭到了越来越多的批判和质疑，唯物史观早期传播和发展的历程也经历了重新的审视。文章从近代思想史发展的事实出发，重新厘清两种思想的关系，并具体论证马克思的唯物史观能否从广义上归结为一种进化论的思想，以及进化论思想在中国是否经历了一个向唯物史观转变的历程。     

Sex Related Factors in the Perception of Threatening Facial Expressions

This study replicated and extended previously reported sex differences involving both viewer and target in the recognition of threatening facial expressions. Based on the assumption that the evolved cognitive mechanisms mediating anger recognition would have been designed by natural selection to operate quickly in the interests of survival, brief tachistoscopic presentation of stimulus photographs was used. Additionally, in contrast to prior published studies, the statistical methods of signal detection research were used to control for the confounding effects of non-random guessing. The main hypothesis, that anger posed by males would be more accurately perceived than anger posed by females, was supported. A secondary hypothesis, that female-posed anger would be more accurately perceived by women than by men, received partial support. Testosterone levels, measured inferentially in terms of diurnal cycles, failed to show the hypothesized positive relationship to accuracy of anger perception.     

在生物进化与人类进化之间

由于人类的进化已日益集中反映在文化的进化上 ,从而使得它与生物之间表现出不同的性质和方式。对于属人世界的生物进化来说 ,既存在自然选择式的客体中介 ,又存在社会选择式的主体中介 ,在当今世界所普遍存在的“生态危机”和各种“人类危机”面前 ,我们更需要确立和谐型的社会选择     

我国《合同法》应将损害赔偿规定为违约救济的首要方式

对于违约案件 ,法院在选择对受害人的救济方式时 ,应首先考虑损害赔偿 ,还是实际履行 ?西方国家多优先适用损害赔偿 ,因为市场主体的交易目的是赢利 ,而损害赔偿能以最快速度填补受害方的利益 ,且无需违约方配合 ,便于法院执行。但我国现行《合同法》却置实际履行于首位 ,损害赔偿于末位 ,这不符合事理、法理和国际惯例 ,应予修正。     

走向西方的日本近代文学的起点——进化论与坪内逍遥的小说改良

由于明治以来的日本文化始终处于东西方文化交融的前哨 ,研究日本近代文学也必须从东西文化交融这一点切入。明治文学的起点是坪内逍遥的小说改良 ,其小说改良的理论基础是进化论。但对于进化论如何影响日本近代文学的确立这一问题若明若暗 ,如今 ,在日本文学界成为反思的一个焦点 ;同样 ,对这一问题的探讨也有助于对我国现当代文学的理论研究     

教育技术的范式及其历史演变

教育技术的 4个范式包括媒体范式、传播与系统范式、行为科学范式、认知科学范式。许多教育技术学者开始探索并发展新的范式。库恩的科学范式的理论 ,讨论了教育技术领域的范式变迁 ,指出这实际上是一个范式持续在演变的过程。