ABSTRACT The recruitment of athletes with limited resources is a global problem in professional sports. In US Major League Baseball, the experience of the Oakland Athletics’ general manager in the last decade turned his “Moneyball” model into a synonym of quantitative analysis in the transfer market of baseball players. His strategy focused on hiring players with outstanding technical skills but relatively low market value. This study adapted this model to the framework of a multiple criteria decision aid (MCDA), by selecting undervalued players who have complementary abilities. The novelty here refers to the joint use of four algorithms explored by the composition of probabilistic preferences (CPP) (i.e., ranking, classification, dynamic evaluation and regularity analysis) and their application to soccer player performance evaluation. The new model analysed the recent transfer of a left-back soccer player to Europe. The results indicated 12 opportunities for better investment, among 32 left and right-back players considered. Two years later, the value of the same player was considerably lower. He played only five matches in the 2018–2019 season, without scoring or providing any assists. On the other hand, the players better classified by the CPP-MB model presented higher performances and market values. 相似文献
ABSTRACTVideogames often confront players with frustratingly difficult challenges, fearsome enemies, and tragic stories. As such, they can evoke feelings of failure, sadness, anger, and fear. Although these feelings are usually regarded as undesirable, many players seem to enjoy videogames which cause them. In this paper, I argue that player misery often originates from a fictional or lusory attitude which brackets game events from real-life, making the player’s emotions solely relevant within the game context. As they are part of the game themselves, these negative emotions can be enjoyed and easily relativized, since players can acknowledge that their cause is ‘only a game’. However, there are feelings of misery associated with the playing of videogames which are not caused by either the game’s fiction or challenge. In the last part of this paper, I describe a qualitatively different kind of player misery: one that is caused by elements that are not perceived as part of the game by the player, and is not bracketed from real life by a lusory or fictional attitude. 相似文献
BACKGROUND: Because of the expense of updating practice guidelines, recent attention has focused on approaches that can reliably assess any updating required. Shekelle et al. (Journal of the American Medical Association 2001, 286, 1461-7) proposed using limited literature searches with expert involvement to reduce resources used in assessing whether a guideline needs updating. OBJECTIVES: This study compared Shekelle's method and the traditional systematic review method regarding comprehensiveness and effort. METHODS: Two research teams translated critical key questions on screening test treatments and outcomes to Medical Subjects Headings (MeSH) and search strategies. They refined Shekelle's method over three iterations, seeking greater efficiency. Using both methods independently, teams assessed the need to update six topics from the 1996 Guide to Clinical Preventive Services (US Preventive Services Task Force). Outcomes included completeness of study identification, importance of missed studies and effort involved. RESULTS: The revised review approach produced fewer citations than the traditional approach and saved time, identifying fewer eligible studies than the traditional approach. None of the studies missed was rated important by the experts consulted. CONCLUSIONS: The revised review approach provides an acceptable method for judging whether a guideline requires updating. Librarians were an integral part of the research process that streamlined the searches. 相似文献
Given the importance of survey measures of online media use for communication research, it is crucial to assess and improve their quality, in particular because the increasingly fragmented and ubiquitous usage of internet complicates the accuracy of self-reported measures. This study contributes to the discussion regarding the accuracy of self-reported internet use by presenting relevant factors potentially affecting biases of self-reports and testing survey design strategies to improve accuracy. Combining automatic tracking data and survey data from the same participants (N = 690) confirmed low levels of accuracy and tendencies of over-reporting. The analysis revealed biases due to a range of factors associated with the intensity of (actual) internet usage, propensity to multitask, day of reference, and the usage of mobile devices. An anchoring technique could not be proved to reduce inaccuracies of reporting behavior. Several recommendations for research practice follow from these findings. 相似文献
In order to find new ways of growing the market, the Dutch General Publishers Association developed an innovation-competition for startups worldwide to bring innovative thinking and ideas into the Dutch Publishing Industry. The competition is the first and only program dedicated to startups leveraging new and creative business ideas around all the elements of book publishing and has its second edition this year. The competition is for startups, who are active in areas such as publishing automation, book retail, data analytics, authoring, book content development, and audience engagement. 相似文献
Governing boards have a long tradition and prominent role in U.S. higher education. The diversity of institutional types, and thus governing boards, represents a multifaceted tapestry of functions, roles, and responsibilities. This paper will attempt to define the parameters of public higher education governing boards in the USA and offer critical insights into their degree of effectiveness. It is the author’s position that both positive and negative lessons can be learned through an examination of these public governing boards in the USA. The recent emergence of university boards in Europe is examined and their characteristics are compared against the characteristics of public and private boards in the USA.
This quantitative study aims to ascertain the significant relationship existing between parents’ profile, and their school
choice and school loyalty. Data were gathered using the researcher’s two-part made instrument. Respondents were first asked
to fill in a robotfoto for purpose of profiling their baseline characteristics and were later asked to rate listed indicators, using a modified
8-point Likert scale. Using statistical tools such as the ANOVA, factor analysis, correlation, mean, and standard deviation,
data were treated indepth. It is interesting to note that although parents are loyal to their alma mater, this does not have
a much impact on their choice of school for their children. On the whole, parents’ choice of school is based on its indispensable
qualities. Among the three interval-scale profiles of the parent respondents such as age, income, tuition fee payment and
number of children, none of these relate to school choice, but age, income, and tuition fee payment negatively relate to school
loyalty. From their nominal-scale profiles, significant differences were noted in their school choice when grouped according
to civil status, place of work, and terms of payment. With respect to school loyalty, significant differences occurred in
their responses when classified according to gender, terms of payment and their active participation in the Parent-Teacher
Association (PTA). 相似文献
Caring, as a universal human phenomenon, should permeate elementary, secondary and tertiary level instruction. The practice
of teaching, especially at the tertiary level, is not only substantial and procedural but relational as well. To teach with
a heart is the essence that makes teaching a form of caring. When teaching is viewed as a form of caring, teachers become
relational geniuses in their own right. This study is an attempt to segment Filipino college students’ views (n=1000) of their
teachers’ caring behavior and their orientations as cared-for individuals. The identified clusters of teacher roles that indicate
caring behavior imply that acts of teaching become acts of caring depending on how the teachers, theefficient cause of education, perform their ordinary tasks in the context ofextraordinariness. Such extraordinariness spells out a big difference in the way teachers practice the so-calledsingle loop caring or caring visibility anddouble- loop caring or caring presence. The former refers to teaching from the heart while the latter pertains to teaching with a heart. Interestingly, the extent
to which teachers’ caring behavior is felt and experienced by the students positively shapes their orientations as cared-for
individuals. 相似文献