基于改进Transformer模型的文本摘要生成方法

传统的文本摘要方法，如基于循环神经网络和Encoder-Decoder框架构建的摘要生成模型等，在生成文本摘要时存在并行能力不足或长期依赖的性能缺陷，以及文本摘要生成的准确率和流畅度的问题。对此，提出了一种动态词嵌入摘要生成方法。该方法基于改进的Transformer模型，在文本预处理阶段引入先验知识，将ELMo(Embeddings from Language Models)动态词向量作为训练文本的词表征，结合此词对应当句的文本句向量拼接生成输入文本矩阵，将文本矩阵输入到Encoder生成固定长度的文本向量表达，然后通过Decoder将此向量表达解码生成目标文本摘要。实验采用Rouge值作为摘要的评测指标，与其他方法进行的对比实验结果表明，所提方法所生成的文本摘要的准确率和流畅度更高。     

军民融合协同创新驱动产业园区高质量发展研究

军民融合产业园区高质量发展对于推进军民深度融合、在全国形成可复制可推广经验具有重要意义。军民融合协同创新通过促进新知识涌现、推进新产业集聚发展，最终汇聚经济发展新动能，驱动园区高质量发展。在提出军民融合协同创新驱动园区高质量发展的机理与组织框架基础上，将发展模式归纳为以分享经济为背景的资源共享模式、以新型研发机构为核心的第三方模式、以产业联盟为核心的产业链拓展模式和以交易平台为核心的“PPP”模式，最后提出相关对策建议。     

Evaluating universal primary education in Uganda: School fee abolition and educational outcomes

This paper analyzes the effect of lifting primary school fees on educational attainment in Uganda. After the abolishment of school fees in 1997, the enrollment rate more than doubled. Two decades later, we know little about the effect of the policy on educational attainment. With recent data on eight cohorts exposed to free education, we analyze the impact of the policy on years of completed primary school, completion of primary school, and transitioning to secondary school. We use a straightforward regression analysis with cohort dummies and household fixed effects to control for unobserved heterogeneity. We find that lifting school fees had no effect on the years of primary school achievement and the likelihood of primary school completion. We find some weak evidence that the likelihood of those who completed primary education to start secondary school increased after Universal Primary Education.     

2020年河北省蔬菜监督抽检数据分析

目的:分析2020年河北省市场监督管理局发布的蔬菜监督抽检数据.方法:下载2020年河北省市场监督管理局发布的食品抽检相关通告,从蔬菜品种、蔬菜细类、不合格蔬菜检出详情及不合格项目等方面进行分析.结果:1199批次蔬菜10个蔬菜品种中,检出62批次不合格,平均不合格率为5.17％.鳞茎类蔬菜、芽菜类蔬菜等不合格率较高,不合格突出的蔬菜细类为韭菜、豆芽、芹菜等,不合格项目主要为农药残留,且禁用农药残留占总不合格项次的50％.结论:河北省蔬菜质量安全水平相对较好,但低于全国平均水平,超剂量使用农药、违规使用禁用农药仍是蔬菜质量安全的主要问题,仍需加强韭菜、豆芽、芹菜等高风险蔬菜的监管力度.     

Labor force participation of women left behind in Tajikistan

This paper examines the impact of male migration on the labor force participation of the women left behind in Tajikistan. Studies from many countries show that when men migrate, female labor force participation decreases and this is largely explained by the income effect from remittances. Our study challenges this finding. Using panel data from 2007, 2009 and 2011, we find that, in Tajikistan, migration has no significant effect on the number of hours that women work. We use panel data which allow us to control for unobservable heterogeneity, rather than the cross-sectional data used by others. We analyze several countervailing factors that may have neutralized the income effect, such as the need to substitute for the missing labor in the household. We also find that women work more when the household has a farm, regardless of the presence of a migrant in the household.     

浅谈企业标准化管理的创新

标准化管理是企业管理的重要基础工作,由于国内外市场竞争的压力,我国企业对标准化管理更加重视。但是如何开展标准化活动才能适应经济全球化的趋势,参与国际竞争,很多企业对此并不十分清楚。作为我国国民经济重要支柱的工业企业要提高核心竞争能力,实现可持续发展,必须对标准化管     

Entrepreneurship and Risk Aversion

Evans and Jovanovic (1989, Journal of Political Economy 97(4), 808–827) find that wealth is an important determinant of business startups due to liquidity constraints. However, Cressy (2000, Economic Letters 66, 235–240) argues that if risk aversion is a negative function of wealth, Evans and Jovanovic’s empirical results could be spurious and the positive effect of wealth could be due to the omission of risk aversion in the regression equation. In other words, according to Cressy, one’s wealth does not have any effect on business startups once the degree of risk aversion is accounted for. This paper attempts to investigate the validity of Cressy’s conjecture. We empirically examine the effect of wealth on the transition into self-employment, while allowing for the effect of risk aversion. Our empirical findings show that Evans and Jovanovic’s (1989) results are robust, i.e., wealth has a positive effect on business startups even allowing for the confounding effects of risk aversion.     

An Experimental Study on Dividing Gains through Politics

This article offers experimental evidence to examine an important case in politics where a monopolistic proposer seeks a majority's consent from competitive responders to split the gain. The unique subgame perfect equilibrium prediction is that the side of trade with a monopoly will exploit the side of trade with competition to reap almost all of the gain. Our experimental evidence reveals that while responders do compete with each other to race to the bottom (consistent with the prediction), the monopolistic proposer settles down to offer a ‘fair’ share of the pie to those from whom he or she seeks majority support (contrary to the prediction).     

技术性贸易壁垒对我国出口贸易的影响及对策

随着经济全球化和贸易自由化,传统贸易壁垒的作用日益削弱。同时西方发达国家通过制定各种标准,建立起技术性贸易壁垒逐步取代关税和非关税壁垒成为新的最主要的贸易障碍,已经成为我国出口贸易发展的最大障碍。本文在分析技术性贸易壁垒的内容、特点及其对我国对外贸易影响的基础上,提出了我国应对技术性贸易壁垒的对策。