基于灰粗集属性知识简约算法的海运规则发现

海运市场运营规则能够帮助海运企业找到盈利增长点,针对海运市场营运规则难于被发现的问题,将灰色系统理论和粗糙集理论进行融合,针对知识约简中分辨函数范式转化过程中的逻辑推演难题,提出了一种基于灰色粗集融合属性的改进约简算法,选取2007年、2010年、2013年、2015年典型年份作为样本年份,应用灰色系统、粗糙集和基于灰粗集知识约简算法分别进行海运市场盈运规则发现实证分析,通过比较证明了该算法的时效性,同时发掘出了当前海运市场的船型、货品、航线、运价、运力间的营运管理规则。     

On the asymptotic normality of the R-estimators of the slope parameters of simple linear regression models with associated errors

ABSTRACT

The purpose of this paper is to prove, under mild conditions, the asymptotic normality of the rank estimator of the slope parameter of a simple linear regression model with stationary associated errors. This result follows from a uniform linearity property for linear rank statistics that we establish under general conditions on the dependence of the errors. We prove also a tightness criterion for weighted empirical process constructed from associated triangular arrays. This criterion is needed for the proofs which are based on that of Koul [Behavior of robust estimators in the regression model with dependent errors. Ann Stat. 1977;5(4):681–699] and of Louhichi [Louhichi S. Weak convergence for empirical processes of associated sequences. Ann Inst Henri Poincaré Probabilités Statist. 2000;36(5):547–567].     

The ILO and the right to strike

The author argues that the June 2012 challenge by the ILO Employers' group to the hitherto generally accepted view regarding the right to strike under the Freedom of Association Convention, No. 87, is at odds with the historical understanding of the framework in which the Convention is embedded. She demonstrates how the ILO constituents have consistently recognized that there is a positive right to strike, which is inextricably linked to – and an inevitable corollary of – the right to freedom of association. The article also analyses the relative roles of the ILO supervisory bodies in this regard.     

情境因素与象征之意义维度

象征是人类社会普遍存在的文化现象,它通过象征符号来表达文化意义,对于人类文化具有特殊价值和重要作用.象征不可能在孤立的条件下得到理解,只有结合它的相关文化背景,才能正确理解象征的主题.本文从思维活动、意义阐祥和时空条件等情境因素切入,简要分析了它们与象征的意义维度之间内在的关联性.     

铁华吟社及其文学创作

铁华吟社是清光绪年间活动于浙江杭州的一个重要的文人社团,晚于该地区较有影响的东轩吟社约半个世纪。不同于东轩吟社有专门的社集《清尊集》,铁华吟社没有自己的社集刊刻流布于世,故而关于该社的起讫时间、参与者及其文学创作的研究尚不深入。结合该吟社发起人吴兆麟的《铁花山馆诗稿》及其族侄吴庆坻的《蕉廊脞录》等作品进行探讨,不但可以考见该社团的一些基本情况,澄清许多事实,亦能对铁华吟社诗歌创作的思想倾向有所了解。     

政府公共决策的规则限制

政府公共决策是一次利益再分配过程,由于＂经济人＂假设和政府的有限理性,政府公共决策权力时常被滥用,造成政府公共决策失误。制定完善的规则,规范政府公共决策权力,可以有效防止政府公共决策失误,使之解决民生之苦、反映民生之需、实现民生之乐。     

行业协会对企业机会主义行为的治理模型及实证分析

目前,我国企业的各种机会主义行为普遍存在,如何从机制上约束企业的这种行为已经成为一个理论研究的热点和难点问题。文章在文献研究的基础上,运用结构方程模型,以企业为视角,通过建构行业协会功能与企业机会主义行为约束条件因子之间的相关关系,得出了可以通过行业协会的功能发挥来有效治理企业机会主义行为的结论,文章旨在为制约企业失信行为提供有意义的参考。     

论服装设计大赛与高校服装设计教育的关系

近年来,中国各类服装设计大赛迅猛发展,在为服装行业挖掘设计人才的同时,也为中国高校服装设计教育提供了一个良好的行业氛围。本文通过分析服装大赛与高校服装设计教育之间的关系,总结了各类服装设计大赛的规则设置、评判标准及组织形式,并针对大赛参与各方如何共同进入一个良性的发展空间提出了若干建议。     

业主团体法律地位之中外对比

我国物权法规定,业主可以设立业主大会,作为区分所有权人团体的最高意思机构。业主大会之下,设有业主委员会,作为意思执行机构,负责日常管理事务。对于业主团体的法律人格问题我国目前尚未定论,法国、德国、日本、我国台湾与香港的物业管理法律制度均确认业主团体的法律人格。笔者赞成肯定业主委员会的诉讼地位的说法,在理论与实践中都应当作为管理维护建筑物和区分主利益的表征,更多地体现为诉讼程序的功能,而非实体功能。     

Decomposing the predictive performance of the moving average trading rule of technical analysis: the contribution of linear and non-linear dependencies in stock returns

The main purpose of this work is to decompose the predictive performance of the moving average (MA) trading rule and find out the portion that could be attributed to the possible exploitation of linear and non-linear dependencies in stock returns. Data from the General Index of the Athens Stock Exchange, from the Standard and Poor-500 Index of the New York Stock Exchange and from the Austrian Traded Index of the Vienna Stock Exchange are filtered by linear filters so as the resulting simulated ‘returns’ exhibit no serial correlation. Applying MA trading rules to both the original and the simulated indices and using a new statistical testing procedure that takes into account the sensitivity of the performance of the trading rule as a function of the length of the MA it is found that the predictive performance of the trading rule is clearly weakened when applied to the simulated indices indicating that a substantial part of the rule's predictive performance is due to the exploitation of linear dependencies in stock returns. This weakening is uneven; in general the shorter the MA length the more pronounced the attenuation.