Identifying playing talent in professional football using artificial neural networks     

Donald Barron  Graham Ball  Matthew Robins  Caroline Sunderland 《Journal of sports sciences》2020,38(11-12):1211-1220

ABSTRACT

The aim of the current study was to objectively identify position-specific key performance indicators in professional football that predict out-field players league status. The sample consisted of 966 out-field players who completed the full 90 minutes in a match during the 2008/09 or 2009/10 season in the Football League Championship. Players were assigned to one of three categories (0, 1 and 2) based on where they completed most of their match time in the following season, and then split based on five playing positions. 340 performance, biographical and esteem variables were analysed using a Stepwise Artificial Neural Network approach. The models correctly predicted between 72.7% and 100% of test cases (Mean prediction of models = 85.9%), the test error ranged from 1.0% to 9.8% (Mean test error of models = 6.3%). Variables related to passing, shooting, regaining possession and international appearances were key factors in the predictive models. This is highly significant as objective position-specific predictors of players league status have not previously been published. The method could be used to aid the identification and comparison of transfer targets as part of the due diligence process in professional football.  相似文献   

Placement in Foster Care Enhances Quality of Attachment Among Young Institutionalized Children   总被引：1，自引：0，他引：1  

Anna T. Smyke  Charles H. Zeanah  Nathan A. Fox  Charles A. Nelson  Donald Guthrie 《Child development》2010,81(1):212-223

This study examined classifications of attachment in 42-month-old Romanian children ( N  = 169). Institutionalized since birth, children were assessed comprehensively, randomly assigned to care as usual (CAU) or to foster care, and compared to family-reared children. Attachment classifications for children in foster care were markedly different from those in the CAU. Importantly, children placed in foster care before 24 months were more likely to have secure attachments and if placed earlier were less likely to have disorganized or insecure-other attachments. Cognitive status predicted greater likelihood of organized attachment in the CAU and greater likelihood of secure attachment in the foster care and never-institutionalized groups. Foster care is an important intervention to reduce the adverse effects following early deprivation.  相似文献   

Partners in progress: the 21st International Congress on Education of the Deaf and the repudiation of the 1880 Congress of Milan     

Moores DF 《American annals of the deaf》2010,155(3):309-310

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Predicting reading growth with event-related potentials: Thinking differently about indexing “Responsiveness”     

Christopher J. Lemons  Alexandra P.F. Key  Douglas Fuchs  Paul J. Yoder  Lynn S. Fuchs  Donald L. Compton  Susan M. Williams  Bobette Bouton 《Learning and individual differences》2010,20(3):158-166

The purpose of this study was to determine if event-related potential (ERP) data collected during three reading-related tasks (Letter Sound Matching, Nonword Rhyming, and Nonword Reading) could be used to predict short-term reading growth on a curriculum-based measure of word identification fluency over 19 weeks in a sample of 29 first-grade children. Results indicate that ERP responses to the Letter Sound Matching task were predictive of reading change and remained so after controlling for two previously validated behavioral predictors of reading, Rapid Letter Naming and Segmenting. ERP data for the other tasks were not correlated with reading change. The potential for cognitive neuroscience to enhance current methods of indexing responsiveness in a response-to-intervention (RTI) model is discussed.  相似文献   

Educational practice and research in education of deaf students science or art     

Moores DF 《American annals of the deaf》2006,151(3):297-298

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360‐degree feedback: Going around in circles?     

Donald T. Tosti  Roger M. Addison 《Performance Improvement》2009,48(3):36-39

Multisource feedback (often called 360‐degree feedback) is, in itself, an excellent idea. In practice, though, multisource feedback is often implemented in a way that can do more harm than good. Many commercially available 360‐degree feedback programs seem to be poorly designed. They may provide reasonably accurate assessments but are inadequate in their delivery of those assessments. The problem lies primarily in the way they deliver the feedback. In this article, we discuss the problems and offer some remedies.  相似文献   

New rationale for large metazoan embryo manipulations on chip-based devices     

Khoshmanesh K  Akagi J  Hall CJ  Crosier KE  Crosier PS  Cooper JM  Wlodkowic D 《Biomicrofluidics》2012,6(2):24102-2410214

The lack of technologies that combine automated manipulation, sorting, as well as immobilization of single metazoan embryos remains the key obstacle to high-throughput organism-based ecotoxicological analysis and drug screening routines. Noticeably, the major obstacle hampering the automated trapping and arraying of millimetre-sized embryos on chip-based devices is their substantial size and mass, which lead to rapid gravitational-induced sedimentation and strong inertial forces. In this work, we present a comprehensive mechanistic and design rationale for manipulation and passive trapping of individual zebrafish embryos using only hydrodynamic forces. We provide evidence that by employing innovative design features, highly efficient hydrodynamic positioning of large embryos on a chip can be achieved. We also show how computational fluid dynamics-guided design and the Lagrangian particle tracking modeling can be used to optimize the chip performance. Importantly, we show that rapid prototyping and medium scale fabrication of miniaturized devices can be greatly accelerated by combining high-speed laser prototyping with replica moulding in poly(dimethylsiloxane) instead of conventional photolithography techniques. Our work establishes a new paradigm for chip-based manipulation of large multicellular organisms with diameters well above 1 mm and masses often exceeding 1 mg. Passive docking of large embryos is an attractive alternative to provide high level of automation while alleviating potentially deleterious effects associated with the use of active chip actuation. This greatly expands the capabilities of bioanalyses performed on small model organisms and offers numerous and currently inaccessible laboratory automation advantages.  相似文献   

Challenges of applying a student-centered approach to learning in the context of education in Kyrgyzstan     

Roxane de la Sablonnire  Donald M. Taylor  Nazgul Sadykova 《International Journal of Educational Development》2009,29(6):628-634

The challenge of maximizing student learning has been paramount in many societies. This issue has become especially salient in the context of drastic social and political changes that have taken place in countries such as Kyrgyzstan. Since the collapse of the Soviet Union, teachers and students are confronted with new ways of thinking, which are challenging their understanding of how to promote efficient learning. In this paper, the challenges of applying and developing a new approach to learning, the student-centered approach, will be discussed within the framework of a Normative Theory of Social Change.  相似文献   

开发信息产品图     

Ballou  Donald  苏颖 《中国科技资源导刊》2009,41(2)

详细阐述了使用信息产品方法,或称IP(Information Product) ,提出将信息作为产品加以管理.文章对信息产品给出了正式严格的定义,提出将信息作为产品加以管理的一套原则和规定,并介绍了信息产品经理的作用.  相似文献   

Power to the Students     

Donald A. Downs 《Academic Questions》2017,30(1):113-117

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