A Monte Carlo comparison of alternative methods of maximum likelihood ranking in racing sports

Applications of maximum likelihood techniques to rank competitors in sports are commonly based on the assumption that each competitor's performance is a function of a deterministic component that represents inherent ability and a stochastic component that the competitor has limited control over. Perhaps based on an appeal to the central limit theorem, the stochastic component of performance has often been assumed to be a normal random variable. However, in the context of a racing sport, this assumption is problematic because the resulting model is the computationally difficult rank-ordered probit. Although a rank-ordered logit is a viable alternative, a Thurstonian paired-comparison model could also be applied. The purpose of this analysis was to compare the performance of the rank-ordered logit and Thurstonian paired-comparison models given the objective of ranking competitors based on ability. Monte Carlo simulations were used to generate race results based on a known ranking of competitors, assign rankings from the results of the two models, and judge performance based on Spearman's rank correlation coefficient. Results suggest that in many applications, a Thurstonian model can outperform a rank-ordered logit if each competitor's performance is normally distributed.     

浅议体育与小城镇经济发展

我国农村体育的发展是以城镇为重点的,体育的发展对小城镇的经济发展有着不可忽视的促进作用。然而体育资金不足,观念及体制的落后严重影响着小城镇的发展,因此,应加大力度促进体育与小城镇经济协调发展。     

赫哲族传统体育项群分类研究

通过文献资料、考察挖掘、田野实证等方法,对赫哲族传统体育进行了调查。研究结果显示。赫哲族统文化孕育出了以跑跳投、体操、舞蹈、角力、攀爬、游戏、武艺七大类体赫哲族育项群,构成了一种寓意深刻的本民族传统文化艺术,创造了形式灵活多样、内容博大精深的少数民族传统体育,使赫哲族传统体育在本土得到发扬和光大,整体提升其地位,使畲族传统体育项目在现代社会中得以继承和发展。     

“以人为本”视阈下普通高校体育舞蹈课程模式研究——以厦门理工学院体育舞蹈选项课为例

基于“以人为本”的哲学思想,分析普通高校体育舞蹈课程现状与问题,认为其教学与校内外、课内外“一体化”教学模式的结合具有重要意义和可行性。对体育舞蹈课程体系构建进行研究,创新其教学内容体系,完善其评价体系,揭示体育舞蹈教学规律,以期为高校体育舞蹈课程建设与改革提供参考。     

唐代边塞乐舞诗综论

在唐代姹紫嫣红的诗坛中 ,边塞诗历来备受推崇 ,而边塞特有的地域文化形成的边塞乐舞诗更具有特殊的韵味和魅力。这与唐代昂扬向上的时代风貌 ,无拘无束的自由精神和宽容博大的审美意识息息相关。     

Why we should think some more. A response to ‘When you’re boxing you don’t think so much’: pugilism,transitional masculinities and criminal desistance among young Danish gang members

This paper forms part of a discussion with scholars working in the field of criminology and youth crime, in particular those who are interested in sport, gender, and desistance from violence. Furthermore, this paper challenges previous work into the sport of boxing and desistance from violence, and therefore argues for a more nuanced approach, by incorporating more feminist epistemologies, and inclusive masculinities into this complex phenomenon. Drawing upon contemporary research, this paper discusses prior literature on sport and desistance from violence, and further develops the concept of sport as a tool for reduction in violent youth crime.     

Elite players’ perceptions of football playing surfaces: a mixed effects ordinal logistic regression model of players’ perceptions

The aim of this study was to determine potential explanatory factors that may be associated with different attitudes amongst the global population of elite footballers to the use of different surfaces for football. A questionnaire was used to capture elite football players’ perceptions of playing surfaces and a mixed effects ordinal logistic regression model was used to explore potential explanatory factors of players’ perceptions. In total, responses from 1129 players from 44 different countries were analysed. The majority of players expressed a strong preference for the use of Natural Turf pitches over alternatives such as Artificial Turf. The regression model, with a players’ country as a random effect, indicated that players were less favourable towards either Natural Turf or Artificial Turf where there was perceived to be greater variability in surface qualities or the surface was perceived to have less desirable properties. Player’s surface experience was also linked to their overall attitudes, with a suggestion that the quality of the Natural Turf surface players experienced dictated players’ support for Artificial Turf.     

试论古代球类文化——从文化功能的角度

本文从文化功能视角出发,探讨了古代球类的产生及其功能与价值。古代球类的萌芽与发展是一个不断满足人的需求与生活实践的过程。在原始社会,人对球类的需求出于狩猎需要,具有人类求生存的价值。中西方球类游戏均起源于原始时代,且都与儿童游戏有关。就竞技性球类运动而言,西方要早于我国,但在功用性上中国却要丰富得多。到古代社会中后期,西方球类运动偏向竞技性方向发展,而我国则朝着游戏化方向进步,中西方球类运动出现了明显的分化。     

新的历史时期民族传统体育文化发展断想

从文化演进的角度描述了民族传统体育曾经的尴尬境遇,认为建设和谐社会和＂十七大＂报告所提出弘扬优秀民族传统文化大背景下,民族传统体育的腾飞出现了历史的发展契机。大力弘扬民族传统体育是建设和谐社会构建和谐体育文化的需要;是重塑文化自尊,提升民族凝聚力和民族自豪感、提升中华民族体育的软实力的需要;是新的历史时期的文化觉醒。弘扬民族传统体育理应成为新时期体育文化建设中的文化自觉,发挥她独具的教化功能和＂和合＂的人文精神是必须把握的精神实质,是新的历史时期弘扬民族传统体育必须把握的基点。     

体育新闻采访权刍议

采访权是体育新闻领域经常引发争议的问题,也是人们长期关注的热点之一。现实中存在行政因素和经济因素限制采访权和媒体滥用采访权两方面问题。产生问题的根本原因就是实践中缺乏对体育新闻采访权的认识。本文尝试从概念、来源、界限等方面分析体育新闻采访权,并提供一些解决问题的思路。