中国古代旅店文化及其伦理蕴涵

中国古代旅店文化蕴含着十分丰富的伦理思想,作为中国古代职业伦理乃至中国传统文化的重要构成,其基本特征是:“宾至如归”、尊重客俗的服务规范;注意环境、讲究商招的经营理念;等级森严、唯利是图的伦理糟粕。     

A simple two-step procedure using the Fellegi–Sunter model for frequency-based record linkage

The widely used Fellegi–Sunter model for probabilistic record linkage does not leverage information contained in field values and consequently leads to identical classification of match status regardless of whether records agree on rare or common values. Since agreement on rare values is less likely to occur by chance than agreement on common values, records agreeing on rare values are more likely to be matches. Existing frequency-based methods typically rely on knowledge of error probabilities associated with field values and frequencies of agreed field values among matches, often derived using prior studies or training data. When such information is unavailable, applications of these methods are challenging. In this paper, we propose a simple two-step procedure for frequency-based matching using the Fellegi–Sunter framework to overcome these challenges. Matching weights are adjusted based on frequency distributions of the agreed field values among matches and non-matches, estimated by the Fellegi–Sunter model without relying on prior studies or training data. Through a real-world application and simulation, our method is found to produce comparable or better performance than the unadjusted method. Furthermore, frequency-based matching provides greater improvement in matching accuracy when using poorly discriminating fields with diminished benefit as the discriminating power of matching fields increases.     

论歌舞曲《激楚》在汉代的流布及其成因

《激楚》是春秋战国时期楚地流行的一支歌舞曲,与“郑卫之音”并称,具有急促交迫的音乐特点。到了汉代,新兴俗乐《激楚》仍然流布很广,对汉乐府相和歌的演唱方式、汉代乐舞文化精神等都产生了重要影响。魏晋以后,《激楚》在文人中获得认同,被视为汉人刚健慷慨文化精神的象征。这一文化现象的成因,与楚地巫舞文化的深层影响、汉代劲健磅礴的文化特质的汇入等密不可分。     

中国省际污染产业转移对环境效率的影响研究

污染产业的发展必须处理好增加产出和保护环境的双重任务.文章采用产业竞争力模型和DEA模型,运用我国10个污染产业与30个省份2007-2014年的数据,实证研究了污染产业发展现状以及污染产业转移与环境效率的关系.结果发现:(1)2014年我国沿海发达省份污染产业发展仍具有竞争力;(2)污染产业由经济较发达省份向经济欠发达省份转移;(3)污染产业转出省环境效率随污染产业转出下降,大多数承接污染产业省份环境效率随污染产业转入下降,我国省际污染产业转移没有达到经济与环境的双赢.     

基于组合赋权法的企业技术创新能力评价

为了应对工业4.0带来的挑战,新兴企业应当重点发展技术创新能力,因此采用综合方法对企业技术创新能力进行评价尤为重要.在复杂的技术创新能力评价中,需要考虑主观和客观两方面因素,文章首先从创新资源投入能力、创新实施能力和创新产出能力三个方面构建了评价指标体系;然后基于评价指标体系的构成,结合主客观赋权法评价的优点,采用组合赋权法对技术创新能力进行评价;最后通过算例说明了组合赋权评价法的有效性.     

金融发展与贸易依存度的实证研究——基于东部十省市面板数据的协整分析

本文利用东部十省市的面板数据,研究金融发展与贸易依存度的关系。运用面板单位根检验和面板协整检验,建立面板协整模型进行分析。结果显示：金融发展仅与进口依存度存在长期均衡关系,且不同省市金融发展对进口依存度的推动作用不同。最后分析其作用差异的潜在原因,并根据实证结果提出了政策建议。     

我国保险业统计中存在的问题及改进措施

保险统计为保险经济活动提供数量信息,对研究保险现状以及保险的发展有重要作用。但在应用保险统计年鉴进行深入的研究就会发现,我国保险统计仍存在不少问题。本文从保险统计年鉴出发,探讨了我国保险统计中存在的问题,并提出改进措施。     

Rate efficient estimation of realized Laplace transform of volatility with microstructure noise

In this paper, we consider the problem of estimating the Laplace transform of volatility within a fixed time interval [0,T] using high‐frequency sampling, where we assume that the discretized observations of the latent process are contaminated by microstructure noise. We use the pre‐averaging approach to deal with the effect of microstructure noise. Under the high‐frequency scenario, we obtain a consistent estimator whose convergence rate is , which is known as the optimal convergence rate of the estimation of integrated volatility functionals under the presence of microstructure noise. The related central limit theorem is established. The simulation studies justify the finite‐sample performance of the proposed estimator.     

雅静清馨风骨不凡——刘东元书法赏析

刘东元2003年作品入选全国第八届书法展,从八届国展的作品集上,可以领略他一幅十分精致典雅的小行草作品,细细品读东元的作品时,那秀蕴生动充满文气的作品会深深地打动你。艺术家的被人认可,凭的就是这样不知耗     

背越式跳高运动员训练过程中恐惧心理的产生原因与克服方法

从跳高运动员的主观状态、客观因素、教练员的焦虑问题三个方面对背越式跳高训练过程中运动员恐惧心理的产生原因进行了分析,并提出了相应的克服方法和建议,为背越式跳高理论和训练提供参考。