scholarly journals Node and Network Entropy—A Novel Mathematical Model for Pattern Analysis of Team Sports Behavior

Mathematics ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1543
Author(s):  
Fernando Martins ◽  
Ricardo Gomes ◽  
Vasco Lopes ◽  
Frutuoso Silva ◽  
Rui Mendes
Keyword(s):  
Mathematical Models ◽  
Pattern Analysis ◽  
Team Sports ◽  
Sports Performance ◽  
Winning Team ◽  
Relative Transition ◽  
Network Transition ◽  
Network Entropy ◽  
Transition Entropy

Pattern analysis is a well-established topic in team sports performance analysis, and is usually centered on the analysis of passing sequences. Taking a Bayesian approach to the study of these interactions, this work presents novel entropy mathematical models for Markov chain-based pattern analysis in team sports networks, with Relative Transition Entropy and Network Transition Entropy applied to both passing and reception patterns. To demonstrate their applicability, these mathematical models were used in a case study in football—the 2016/2017 Champions League Final, where both teams were analyzed. The results show that the winning team, Real Madrid, presented greater values for both individual and team transition entropies, which indicate that greater levels of unpredictability may bring teams closer to victory. In conclusion, these metrics may provide information to game analysts, allowing them to provide coaches with accurate and timely information about the key players of the game.

scholarly journals Mathematical Models to Measure the Variability of Nodes and Networks in Team Sports

Entropy ◽  
2021 ◽  
Vol 23 (8) ◽  
pp. 1072
Author(s):  
Fernando Martins ◽  
Ricardo Gomes ◽  
Vasco Lopes ◽  
Frutuoso Silva ◽  
Rui Mendes
Keyword(s):  
Probability Theory ◽  
Bayesian Methods ◽  
Pattern Analysis ◽  
Team Sports ◽  
Research Field ◽  
Sports Performance ◽  
Transition Matrices ◽  
Mathematical Concepts ◽  
Robust Analysis ◽  
Total Variability

Pattern analysis is a widely researched topic in team sports performance analysis, using information theory as a conceptual framework. Bayesian methods are also used in this research field, but the association between these two is being developed. The aim of this paper is to present new mathematical concepts that are based on information and probability theory and can be applied to network analysis in Team Sports. These results are based on the transition matrices of the Markov chain, associated with the adjacency matrices of a network with n nodes and allowing for a more robust analysis of the variability of interactions in team sports. The proposed models refer to individual and collective rates and indexes of total variability between players and teams as well as the overall passing capacity of a network, all of which are demonstrated in the UEFA 2020/2021 Champions League Final.

Eco-Dynamics Approach to the study of Team Sports Performance~!2009-07-05~!2009-11-01~!2010-04-29~!

2010 ◽  
Vol 3 (1) ◽  
pp. 56-57 ◽  
Author(s):  
B. Travassos ◽  
D. Araujo ◽  
V. Correia ◽  
P. Esteves
Keyword(s):  
Team Sports ◽  
Sports Performance

Do We Share the Same View? Validating the Shared Mental Models in Team Sports Questionnaire

2021 ◽  
Vol 128 (2) ◽  
pp. 831-850
Author(s):  
Charlotte Raue ◽  
Dennis Dreiskaemper ◽  
Bernd Strauss
Keyword(s):  
Mental Models ◽  
Team Sports ◽  
Positive Influence ◽  
Shared Mental Models ◽  
Model Fit ◽  
Sports Performance ◽  
Measurement Instruments ◽  
Team Members ◽  
Confirmatory Factor ◽  
Good Internal Consistency

Shared mental models (SMMs) can exert a positive influence on team sports performance because team members with SMMs share similar tasks and team-related knowledge. There is currently insufficient sports research on SMMs because the underlying theory has not been adapted adequately to the sports context, and different SMMs measurement instruments have been used in past studies. In the present study we aimed to externally validate and determine the construct validity of the “Shared Mental Models in Team Sports Questionnaire” (SMMTSQ). Moreover, we critically examined the theoretical foundation for this instrument. Participants were 476 active team athletes from various sports. While confirmatory factor analysis did not support the SMMTSQ’s hierarchical model, its 13 subfactors showed a good model fit in an explorative correlative approach, and the model showed good internal consistency and item–total correlations. Thus, the instrument’s subfactors can be applied individually, even while there are remaining questions as to whether other questionnaires of this kind are an appropriate means of measuring SMMs in sport.

Health system characteristics of quality care delivery: A comparative case study examination of palliative care for cancer patients in four regions in Ontario, Canada

2011 ◽  
Vol 26 (4) ◽  
pp. 322-335 ◽  
Author(s):  
Jonathan Sussman ◽  
Lisa Barbera ◽  
Daryl Bainbridge ◽  
Doris Howell ◽  
Jinghao Yang ◽  
...  
Keyword(s):  
Palliative Care ◽  
Health System ◽  
Acute Care ◽  
Pattern Analysis ◽  
Care Delivery ◽  
Quality Care ◽  
Structural Features ◽  
Comparative Case Study ◽  
Care Utilization

Background: A number of palliative care delivery models have been proposed to address the structural and process gaps in this care. However, the specific elements required to form competent systems are often vaguely described. Aim: The purpose of this study was to explore whether a set of modifiable health system factors could be identified that are associated with population palliative care outcomes, including less acute care use and more home deaths. Design: A comparative case study evaluation was conducted of ‘palliative care’ in four health regions in Ontario, Canada. Regions were selected as exemplars of high and low acute care utilization patterns, representing both urban and rural settings. A theory-based approach to data collection was taken using the System Competency Model, comprised of structural features known to be essential indicators of palliative care system performance. Key informants in each region completed study instruments. Data were summarized using qualitative techniques and an exploratory factor pattern analysis was completed. Results: 43 participants (10+ from each region) were recruited, representing clinical and administrative perspectives. Pattern analysis revealed six factors that discriminated between regions: overall palliative care planning and needs assessment; a common chart; standardized patient assessments; 24/7 palliative care team access; advanced practice nursing presence; and designated roles for the provision of palliative care services. Conclusions: The four palliative care regional ‘systems’ examined using our model were found to be in different stages of development. This research further informs health system planners on important features to incorporate into evolving palliative care systems.

Pattern analysis of Scleropyll trees aggregated to different degrees

1970 ◽  
Vol 18 (2) ◽  
pp. 237
Author(s):  
WE Westman ◽  
DJ Anderson
Keyword(s):  
Mathematical Models ◽  
Tree Species ◽  
Pattern Analysis ◽  
New South ◽  
Analysis Data ◽  
Eucalypt Forest ◽  
South Wales ◽  
Sclerophyll Forest ◽  
The One ◽  
Block Sizes

Pattern analysis data are presented for a number of tree species populations sampled from two sites located in dry sclerophyll forest within the Ku-ring-gai Chase park of New South Wales. The distributions proved to be predominantly contagious or random, with regularity occurring only occasionally. Observed variations in the degree of aggregation exhibited by a species were taken into account in interpreting pattern analysis curves. The relation of pattern analysis data to sample quadrat data fitted to known mathematical models is extremely variable, and it is shown that pattern at block sizes other than the one under consideration may suppress the appearance of deviations from randomness at block sizes which do show contagion when sampled with randomly placed quadrats. The possible origins of contagious distributions in eucalypt forest are briefly discussed.

scholarly journals Komunikasi Politik Kiai Dalam Pemilihan Umum Tahun 2019

2020 ◽  
Vol 10 (1) ◽  
pp. 49-62
Author(s):  
Khoirul Mushthofa Misyuniarto
Keyword(s):  
Political Communication ◽  
Boarding School ◽  
General Election ◽  
Communication Strategy ◽  
The Political ◽  
Study Approach ◽  
Winning Team ◽  
Qualitative Descriptive ◽  
The Media

This study examines the political communication strategy carried out by Kiai as a boarding school caretaker in the General Election. The purpose of this study is to describe the political communication strategy carried out by Kiai Syafik Rofi'i, caretaker of the Salafiyah Syafi'iyah Islamic Boarding School in Bangkalan Regency, East Java Province in the 2019 General Election. This study uses a qualitative descriptive method with a case study approach. The results showed that the political communication strategy being implemented was political negotiation among kiai in Islamic boarding schools in Bangkalan Regency. In addition, political communication uses the strategy of a campaign winning team or success team, and also uses the media as a channel for delivering messages to provide understanding and influence public opinion.

From war for talent to victory through organization

2015 ◽  
Vol 14 (1/2) ◽  
pp. 8-12 ◽  
Author(s):  
Dave Ulrich
Keyword(s):  
Design Methodology ◽  
Team Sports ◽  
Organization Culture ◽  
Line Managers ◽  
Content Type ◽  
The Past ◽  
Winning Team ◽  
The Right ◽  
War For Talent

Purpose – The purpose of this paper is to show that the human resource (HR) focus on “talent” has dominated the profession for the past 15 to 20 years. Much of this work draws on the research from the excellent study and book called The War for Talent. In this paper, the author proposes that victory (from any war) does not come from talent alone, but from the organization. Organization is defined as capabilities, or what an organization is known for and good at, and culture, which is a key capability. When HR professionals deliver both talent and organization, they build sustainable success that leads to victory. Design/methodology/approach – This paper offers a perspective on shifting HR focus from an exclusive emphasis on talent to one on talent and organization. The author gives many examples of where great individual talent does not lead to long-term success (e.g. in most team sports, the leading scorer is on the winning team about 20 per cent of the time). Findings – Once one identifies organization as a source of long-term success, it is critical to operationalize organization into a series of conscious choices. The paper defines culture as a key capability (along with other possible capabilities of speed [agility, flexibility, responsiveness and change], innovation, collaboration, efficiency and so forth). The author identifies specific wars that HR professionals and line managers can diagnose that create the right organization. Originality/value – Many have talked about parts of organization (culture, climate, systems, process, etc.). The author offers an original way to define organization capabilities and culture.

Accuracy, inter-unit reliability and comparison between GPS and UWB-based tracking systems for measuring centripetal force during curvilinear locomotion

2020 ◽  
pp. 175433712096160
Author(s):  
Paulino Granero-Gil ◽  
Alejandro Bastida-Castillo ◽  
Daniel Rojas-Valverde ◽  
Carlos D Gómez-Carmona ◽  
Ernesto de la Cruz Sánchez ◽  
...  
Keyword(s):  
Team Sports ◽  
Ultra Wideband ◽  
Centripetal Force ◽  
Sports Performance ◽  
Tracking Systems ◽  
Force Measurements ◽  
Global Positioning ◽  
Ethical Approval ◽  
Elite Level ◽  
Centripetal Forces

Curvilinear locomotion is important for team sports performance and requires data collection and monitoring of centripetal forces. Currently, the centripetal force can be measured by different sensors that compose inertial devices, but its accuracy needs to be assessed. Therefore, this research aimed to analyze the accuracy and inter-unit reliability of both global positioning (GPS)-based and ultra-wideband (UWB)-based systems for practical application in the field. Following institutional ethical approval and familiarization, 10 elite-level male soccer players performed six circuits on four tracks (6-m radius circle, 9.15-m radius circle, 12-m radius circle, and combined track locomotion) in both directions (three counter-clockwise and three clockwise) and were monitored by two tracking systems (GPS and UWB). The direct measurement was compared with the theoretical centripetal force calculated by photocells and spatial references. The UWB technology showed better accuracy (clockwise, bias =−1.34 N; counter-clockwise, bias = 1.09 N) than the GPS (clockwise, bias = −2.19 N; counter-clockwise, bias = 1.75 N) in centripetal force measurements. However, both tracking technologies obtained very large to nearly perfect reliability results (GPS: ICC = 0.76-0.96; UWB: ICC = 0.76–0.98). In conclusion, even though both technologies proved to be reliable and data could be compared between units, the UWB-based system demonstrated better accuracy than the GPS-based system to detect centripetal force during curvilinear locomotion.

scholarly journals The Role of Hypernetworks as a Multilevel Methodology for Modelling and Understanding Dynamics of Team Sports Performance

2019 ◽  
Vol 49 (9) ◽  
pp. 1337-1344 ◽  
Author(s):  
João Ribeiro ◽  
Keith Davids ◽  
Duarte Araújo ◽  
Pedro Silva ◽  
João Ramos ◽  
...  
Keyword(s):  
Team Sports ◽  
Sports Performance
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