基于时间聚类的加权关联规则及其在企业中的应用

针对煤炭企业采用的基于关联规则的数据挖掘技术存在的不足,文章提出了一种基于时间聚类的加权关联规则挖掘算法,分析了关联规则的基本概念,简要介绍了传统Apriori算法原理,详细介绍了基于时间聚类的加权关联规则挖掘算法原理及实现．实际应用范例表明,与Apriori算法相比,基于时间聚类的加权关联规则挖掘算法具有较高的准确性．     

论依法治教与高校体育改革

分析认为,依法治教与高校体育改革相互依赖.一方面,高校体育改革需要相适应的立法,因而成为推动教育法治更快发展的强大动力;另一方面,依法治教对确认和巩固高校体育改革成果,指导改革深入进行,并使改革沿着健康方向发展,也有重要的保障作用.     

雅典奥运会我国皮划艇实现历史性突破的核心启迪

雅典奥运会我国皮划艇项目实现了历史性突破,反思、总结3年“备战”的精髓经验包括：超常规思维,不断深入对项目发展规律的认识,注重理论创新;优化人力资源结构,建立学习型、进取型和创新型的强势教练团队;统筹训练过程的各个要素、关系和矛盾,贯彻“三从一大”训练原则;勇于否定自己、否定传统,大胆进行训练实践创新,等等。这些经验对皮划艇项目的未来发展乃至对其他落后项目的迅速崛起,均具有重要的参考价值。     

Doping in sport: an analysis of sanctioned UK rugby union players between 2009 and 2015

To inform anti-doping policy and practice, it is important to understand the complexities of doping. The purpose of this study was to collate and systematically examine the reasoned decisions published by UK Anti-Doping for doping sanctions in rugby union in the UK since the introduction of the 2009 World Anti-Doping Code. Case files were content analysed to extract demographic information and details relating to the anti-doping rule violation (ADRV), including individuals’ explanations for how/why the ADRV occurred. Between 2009 and 2015, 49 rugby union players and one coach from across the UK were sanctioned. Over 50% of the cases involved players under the age of 25, competing at sub-elite levels. Reasons in defence of the ADRV focused on functional use and lifestyle factors rather than performance enhancement. An a priori assessment of the “need”, “risk” and “consequence” of using a substance was not commonplace; further strengthening calls for increasing the reach of anti-doping education. The findings also deconstruct the view that “doped” athletes are the same. Consequently, deepening understanding of the social and cultural conditions that encourage doping remains a priority.     

县级政府信息公开现状以及存在问题研究

文章通过对浙江省德清县、长兴县和绍兴市柯桥区三县区政府信息公开年报数据进行实证研究得知,目前我国县级政府信息公开存在着以下问题:第一,政府信息公开主动性不强;第二,公众对申请政府信息公开的积极性不高;第三,政府信息公开的完整性不大。同时,通过分析上述问题形成的原因,提出完善地方政府信息公开体制和引入绩效考核机制等措施,提高我国县级政府信息公开工作水平。     

新规则下中外优秀技巧啦啦操成套动作分析及发展趋势研究*

通过文献资料、数理统计、录像观察和专家访谈等方法,以中外优秀技巧啦啦操成套动作的编排发展现状及趋势作为研究对象,查阅2014年版国际啦啦操联合会啦啦操竞赛规则,旨在分析规则引导技巧啦啦操项目发展的方向,对世界技巧啦啦操编排发展态势、我国技巧啦啦操的发展现状以及与世界先进水平的差距进行了探讨,结论如下:1.当今世界技巧啦啦操主要朝着单底座托举和三层金字塔方向发展,动作的衔接串联难度由单一的空翻和转体向复合轴空翻发展;2.在“一校一球一操”的战略背景下,啦啦操普及得到了飞速的发展,但技巧啦啦操成套动作编排仍与世界先进水平存在一定的差距,且存在着托举动作稳定性和难度的不足、金字塔的动作编排较为单一、动作的衔接串联过于简单等问题;     

城市高新产业区的区位择优律研究

主要分析城市高新产业区对区位择优的需要,界定区位的概念,通过归纳影响城市高新产业区择位的因素,总结出城市高新产业区区位择优的规律。     

Systematic Comparison of Decision Accuracy of Complex Compensatory Decision Rules Combining Multiple Tests in a Higher Education Context

This real‐data‐guided simulation study systematically evaluated the decision accuracy of complex decision rules combining multiple tests within different realistic curricula. Specifically, complex decision rules combining conjunctive aspects and compensatory aspects were evaluated. A conjunctive aspect requires a minimum level of performance, whereas a compensatory aspect requires an average level of performance. Simulations were performed to obtain students' true and observed score distributions and to manipulate several factors relevant to a higher education curriculum in practice. The results showed that the decision accuracy depends on the conjunctive (required minimum grade) and compensatory (required grade point average) aspects and their combination. Overall, within a complex compensatory decision rule the false negative rate is lower and the false positive rate higher compared to a conjunctive decision rule. For a conjunctive decision rule the reverse is true. Which rule is more accurate also depends on the average test reliability, average test correlation, and the number of reexaminations. This comparison highlights the importance of evaluating decision accuracy in high‐stake decisions, considering both the specific rule as well as the selected measures.     

器材与规则的变革对乒乓球运动的发展的影响

通过查阅有关乒乓球运动的文献资料,了解有关乒乓球运动的知识,分析乒乓球运动的发展过程中的影响因素。乒乓球技、战术的不断改革创新,都离不开乒乓球器材的变革以及规则的改革。     

中外女子优秀拳击运动员比赛制胜因素表现差异的对比研究

运用对比分析法、录像观查法、数理统计法对国际拳联新规则实施后2016年世界女子拳击锦标赛与2016年全国女子拳击锦标赛的各10个级别决赛录像进行研究与分析,总结出中国与世界女子优秀拳击运动员比赛制胜因素表现的差异。研究结果表明：（1）国外运动员前后手直拳、摆拳使用次数、击中次数和击中率均高于我国运动员;（2）国外运动员的迎击战术运用次数、击中次数、击中率均高于我国运动员,间接迎击战术运用效果优于直接迎击战术;（3）国外运动员后仰防守反击的击中率较低、其它的防守反击战术的击中率较高;（4）国外运动员较多运用两拳、三拳主动进攻战术且击打效果较佳;（5）国外运动员的步法调整进攻时机、防守反击次数、击中对手次数远优于我国运动员;（6）我国运动员防守反击战术单拳击打效果较佳、国外运动员多拳击打效果较佳;（7）我国运动员在犯规种类和犯规次数上高于国外运动员。根据研究结果提出我国女子拳击运动员有针对性的训练措施与建议。