Machine and deep learning for sport-specific movement recognition: a systematic review of model development and performance

Objective assessment of an athlete’s performance is of importance in elite sports to facilitate detailed analysis. The implementation of automated detection and recognition of sport-specific movements overcomes the limitations associated with manual performance analysis methods. The object of this study was to systematically review the literature on machine and deep learning for sport-specific movement recognition using inertial measurement unit (IMU) and, or computer vision data inputs. A search of multiple databases was undertaken. Included studies must have investigated a sport-specific movement and analysed via machine or deep learning methods for model development. A total of 52 studies met the inclusion and exclusion criteria. Data pre-processing, processing, model development and evaluation methods varied across the studies. Model development for movement recognition were predominantly undertaken using supervised classification approaches. A kernel form of the Support Vector Machine algorithm was used in 53% of IMU and 50% of vision-based studies. Twelve studies used a deep learning method as a form of Convolutional Neural Network algorithm and one study also adopted a Long Short Term Memory architecture in their model. The adaptation of experimental set-up, data pre-processing, and model development methods are best considered in relation to the characteristics of the targeted sports movement(s).     

Football friends: adolescent boys’ friendships inside an English professional football (soccer) academy

This qualitative research draws on data from semi-structured, in-depth interviews to examine the friendships of 12 adolescent (14- and 15-year-old) boys within a professional football club Academy: a setting marked by competition for places. Findings highlight how boys fail to develop ‘deep’ friendships with other boys inside the club; their peer-relationships, even when described as ‘friendships’, are devoid of trust and emotional intimacy. Instead, ‘being mates’ is experienced within parameters of instrumentalism and individualism leading to superficial and inauthentic friendships. There is some indication that boys developed closer friendships with boys outside of the Academy, suggesting that competition is implicated negatively in friendship-building and hinders the capabilities of these boys to develop close friendships with teammates. Concluding this paper, we acknowledge limitations of our data, discuss implications and challenges for football academies, and highlight directions for future research.     

Relationship between perceived acculturation expectations and Muslim minority youth's acculturation and adaptation

Acculturation strategies have frequently been used to describe how members of ethnic minorities reconcile their heritage culture with the culture of their society of residence. Recently, studies have started to pay increased attention to the fact that the choice of acculturation strategy does not take place in a social vacuum. In the present study, we test whether the perception of assimilation expectations held by the societal majority (PSAE) as well as separation expectations held by ethnic peers (PESE) may be related to individuals’ own acculturation strategy. Furthermore, we investigate whether these perceived expectations are directly related to stress and indirectly to adaptation, mediated by acculturation strategies. All relationships were investigated using multi-group structural equation modeling with members from three Muslim minority groups: 301 German-Turks, 302 French-Maghrebis and 262 British-Pakistanis. Across the samples, PSAE was associated with higher degrees of stress. PESE was negatively related to integration, while it was positively related to separation. In addition, PESE was indirectly and negatively related with self-esteem and/or socio-cultural adaptation in all samples. The impact of societal assimilation expectation appears to be limited in this regard. In all, the present study suggests that perceived acculturation expectations may influence ethnic minorities’ acculturation strategy. The results also suggest that perceived expectations that contrast with individuals’ personal acculturation preference could result in higher levels of stress and lower levels of psychological and socio-cultural adaptation, mediated by acculturation strategies.     

高等教育的多样化与跨国模式——马来西亚私立高等教育的发展和变革

马来西亚的私立高等教育在1990年代开始迅速扩展,并且所办的课程也趋向多样化、国际化。本文主要是着重在阐述马来西亚私立高等教育从1980年代到21世纪初的发展,以及在这段时期所做出的变革和创新。     

Socialization experiences and coping strategies of adults raised using spoken language

This investigation concerned the socialization experiences and coping strategies of a group of 28 deaf adults who were raised using spoken language. Most respondents reported some level of social isolation because of (1) limitations in communication with hearing peers; (2) missing information in social, academic, and work settings; and (3) a sense of being "different." Most participants also reported strategies used to reduce isolation and mitigate the social difficulties associated with their hearing loss.     

An exploratory study on collaborative modes of professional development and learning for teachers of students with autism spectrum disorder (ASD)

This study aims to deliver a school‐based mode of training for in‐service teachers of students with ASD in Hong Kong. The training is delivered following the phases of implementation science, namely, exploration, installation, and implementation. The project team used the theory of mind approach, which enables teachers to engage with students with ASD and to focus on recognizing and reacting to emotions. Participants in this study included four educators from a teacher education institution, three expert teachers, and 19 in‐service teacher trainees. The most salient responses came from trainees who were provided with the opportunity to apply learned skills in their own classrooms immediately and to share the knowledge and skills in dealing with students with ASD in the post‐conference meetings.     

Physical Space and the Resource-Based View of the College

Space serves as a key resource for colleges and universities, and institutions exchange information about it with each other and with prospective students. Using content analysis to examine several widely circulated publications, this study looked for differences in the value attributed to space when institutional leaders present it to students and to other institutions. More broadly, I hope to suggest how differences in the presentation of space could indicate divergent priorities that can damage institutional trustworthiness.