浅析英语双关语在广告中的运用及作用

广告,作为一种特殊的交际模式,是消费者了解商品的一个重要途径,与现代生活息息相关。而双关语因其语言上的机智和独具匠心、风趣幽默、新颖别致,能给人以回味和想象的余地,能突出广告的特点,从而在瞬间引起消费者注意,刺激其购买欲望,最终促成购买行为。因此,双关语在广告中被大量启用,通过对实例的分析探究双关语在广告中的运用艺术和寓意具有很强的现实意义。     

Detection of outliers in high-dimensional data using nu-support vector regression

Support Vector Regression (SVR) is gaining in popularity in the detection of outliers and classification problems in high-dimensional data (HDD) as this technique does not require the data to be of full rank. In real application, most of the data are of high dimensional. Classification of high-dimensional data is needed in applied sciences, in particular, as it is important to discriminate cancerous cells from non-cancerous cells. It is also imperative that outliers are identified before constructing a model on the relationship between the dependent and independent variables to avoid misleading interpretations about the fitting of a model. The standard SVR and the μ-ε-SVR are able to detect outliers; however, they are computationally expensive. The fixed parameters support vector regression (FP-ε-SVR) was put forward to remedy this issue. However, the FP-ε-SVR using ε-SVR is not very successful in identifying outliers. In this article, we propose an alternative method to detect outliers i.e. by employing nu-SVR. The merit of our proposed method is confirmed by three real examples and the Monte Carlo simulation. The results show that our proposed nu-SVR method is very successful in identifying outliers under a variety of situations, and with less computational running time.     

基于“硬件/软件”平台产品性能改进的定价策略与激励合同研究

构建了一个“硬件/软件”平台，平台一边是互补内容或服务的提供商，一边是购买平台产品和内容的最终消费者。在刻画平台产品和内容之间互补网络效应的基础上，考虑平台产品性能改进，运用博弈论方法，揭示了平台产品定价、内容定价、平台收费及平台产品性能水平决策的内在机理，并进一步探索了优化平台产品性能的激励合同设计。研究结果表明：(1)在一定条件下平台产品可以亏本销售，但内容必须具有盈利性。(2)互补性网络效应越强、平台产品性能改进效率越高或敏感系数越小将促使平台提高产品性能并制定更高的平台接入费，同时内容价格也会提高。但平台产品性能水平与其价格的变化并不总是保持一致。(3)数量折扣和固定转移支付合同的组合合同可以实现双边市场系统的协调并进一步优化平台产品性能水平，且当固定转移费用在一定范围内时，实现平台和内容提供商利润的帕累托改进。     

考虑确权可信能力的知识产权管理平台确权渠道策略研究

区块链技术能创造可信环境，其在知识产权管理中的应用受到业界关注。知识产权管理平台准确提供知识产权确权证据的能力(即确权可信能力)是非常重要的竞争指标，但在平台可选择多种确权渠道的情况下，其竞争的最佳策略问题尚未被研究。为解决此问题，本研究建立了三阶段博弈模型，分析传统渠道、区块链渠道、两种渠道同时开放下，两个寡头垄断型知识产权管理平台的最优竞争策略；并对模型进行扩展，研究新兴平台与现有平台竞争时的最佳策略。分析解析解和数值仿真结果得出以下结论：(1)双垄断平台竞争时，平台应根据高时效性要求的用户比例来选择竞争策略，比例低时，都同时开放传统渠道和区块链渠道，比例高时，一方仅提供传统渠道，另一方同时开放两种渠道。(2)新兴平台与现有平台竞争，在高时效性要求用户比例较低时，现有平台应当同步开放区块链渠道服务；比例较高时应当仅开放传统渠道。     

回流儿童教育融入的困境与出路——基于现象学案例分析的视角

返乡后的回流儿童如何更好地融入到乡村的教育环境之中是教育者需要关注的重要议题。通过典型的案例，呈现回流儿童“小龙”在教育融入过程中，由环境变化激活的“敏感自我”感悟、由学业退步引发的“消极自我”体认和由冷嘲热讽导致的“反抗自我”倾向，从而提出要关注回流儿童的生活世界，建立关怀式情感联接；重视回流儿童的自我体验，寻求师生主体性的交互空间；施以平等对话式的教育活动，促进师生意义世界的视域融合。     

SEIR Model to address the impact of face masks amid COVID-19 pandemic

Early in the pandemic of coronavirus disease 2019 (COVID-19), face masks were used extensively by the general public in several Asian countries. The lower transmission rate of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in Asian countries compared with Western countries suggested that the wider community use of face masks has the potential to decrease transmission of SARS-CoV-2. A risk assessment model named Susceptible, Exposed, Infectious, Recovered (SEIR) model is used to quantitatively evaluate the potential impact of community face masks on SARS-CoV-2 reproduction number (R₀) and peak number of infectious persons. For a simulated population of one million, the model showed a reduction in R₀ of 49% and 50% when 60% and 80% of the population wore masks, respectively. Moreover, we present a modified model that considers the effect of mask-wearing after community vaccination. Interestingly mask-wearing still provided a considerable benefit in lowering the number of infectious individuals. The results of this research are expected to help public health officials in making prompt decisions involving resource allocation and crafting legislation.