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Modelagem estratégico-tática em esportes coletivos de invasão: aplicação ao basquetebol / Strategic and tactic modelling in invasion team sports: application to basketballLeonardo Lamas Leandro Ribeiro 05 June 2012 (has links)
O objetivo do presente trabalho foi elaborar um modelo formal de descrição do jogo em esportes coletivos de invasão e instanciar o modelo a um esporte particular, o basquetebol, com a formalização de suas classes de comportamento ofensivos e defensivos. A estratégia foi modelada como um sistema dinâmico discreto. Este modelo tem como elemento lógico fundamental a regra de ação, que descreve as decisões de um jogador. As regras de ação também são usadas para a especificação da transformação de um estado e, consequentemente, da sequência de transformações de estados em um grafo representativo de uma estratégia. As propriedades estruturais, que são requisitos para uma estratégia eficiente, foram introduzidas na modelagem estratégica através de um conjunto de delimitadores (i.e., fases do jogo, tipos de conexões entre os nós por fase, regras de conexão, e regiões estratégicas), que especializam a definição da estratégia excluindo aquelas que não atendem aos requisitos dos delimitadores. O conjunto restante é denominado modelo da estratégia (ESTM). A formalização do ESTM apresentada neste trabalho estabelece uma metodologia para descrever, desenhar e avaliar a estratégia de uma equipe de um ECI. De maneira integrada à formalização da estratégia, a dinâmica do jogo foi modelada e a relação entre as estratégias desenhadas para duas equipes oponentes e a dinâmica do jogo foi apresentada. As estratégias atuam como bases de dados acessadas para subsidiar as decisões dos jogadores de uma equipe e permitir que eles atuem coletivamente durante as diferentes circunstâncias da oposição. A relação entre as estratégias desenhadas para duas equipes e a oposição no jogo entre estas equipes pode ser formalizada como um caso particular de sistema dinâmico, no qual dois sistemas dinâmicos discretos, representados pelas estratégias das equipes, e um sistema dinâmico contínuo, representado pelo jogo, são integrados por fluxos de controle e dados. Após formalizado o sistema dinâmico que representa a relação entre estratégia e oposição, no contexto do jogo, os elementos desse sistema foram decompostos, de forma hierárquica, levando em conta os principais módulos funcionais que compõem o fenômeno. Por fim, é apresentado o processo de validação das classes de comportamentos ofensivos e defensivos do jogo, constituídas por um conjunto limitado de dinâmicas individuais, grupais e coletivas, das quais a comissão técnica pode se valer para elaborar a estratégia da equipe, definir os conteúdos de treinamento, assim como selecionar aqules, dentre eles, cujo desempenho deverá ser avaliado no jogo. O modelo proposto constitui uma contribuição original à pedagogia dos esportes coletivos de invasão, tanto pelos avanços imediatos no entendimento das características estruturais desses esportes quanto pelos possíveis desdobramentos tecnológicos, que podem igualmente contribuir no processo de ensino-aprendizado nos mais diversos níveis competitivos / The aim of this study were: a) to develop a formal model to describe the game in invasion team sports (ITS) and instanciate the model to a particular sporte, the basketball; b) to validate classes of offensive and defensive behaviors in basketball. The strategy of ITS was modeled as a discrite dynamics system. This model has as a logical fundamental element named action rules, which describes the decisions of a player. The action rules are used to specify the transformations within a state and, consequently, the sequence of transformations of the states in a graph that representes the strategy of a team. The structural properties, pre-requisetes of an efficient strategy, were introduced in the model through a set of delimeters (i.e. game phases, types of connections between nodes per phase, rules of connections, and strategic regions) that specialize the the definition of strategy excluding those that do not posses the pre-requesites of the delimeters. The remaining set is defined as the strategy model. The strategy model formalized herein stablishes a metodology to describe, draw and evaluate the strategy of an IST team. Furthermore, match dynamics were modeled and integrated to the strategy model. The strategy constitute a data base which is assessed to support the team pleayers decisions and allow a collective behavior. The relationship between the strategy and the opposition in a match may be formalized as a particular familty of dynamic systems in which two discrete dynamical systems represented by the two strategies of the opposing teams, and a continuous dynamical system, represented by the match, are integrated by control and data fluxes. Once the model was constituted, its elements were hierarchicaly decomposed, considering the main functional models of the phenomenon. Finally, it is preseted the validation process of the possible offensive and defensive behaviors in a match, which are delimeted by a limited set of individual, group, and team dynamics. This set of behaviors may be used by the coaching staff to elaborate the team strategy, to define the training contentes, to determine how performance is going to be evaluated. The proposed model is an original contribution to the pedagogy of ITSs due to the increased understanding of the structural characteristics of these sports and the possible technological improvements that may be implemented in the teaching process at different competitive levels
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Labour market integration of highly educated refugees in Sweden : Why are they mismatched?Flemark, Sofia January 2021 (has links)
This paper investigates occupational mismatch of highly educated refugees in Sweden and aims to study what factors are impacting their labour market integration process. In contrast to the extensive number of quantitative reports based on registered data in the field, this research applies a qualitative approach by conducting interviews with the target group and incorporating a temporal aspect of the process. The results confirm existing theories such as human capital deficit, lack of social capital and signalling issues, but also indicates that contextual factors, being family demands and financial pressure, affect the process. An openness towards a change of field and lack of guidance from authorities emerged as factors for mismatch too. Lastly, feelings of stress and frustration seems to influence the process to a big extent which leads us to the conclusion that the labour market integration process of educated refugees is highly influenced by the aspect of time - and more specifically the lack of it.
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Vyhledávání nejdelšího shodného prefixu ve vysokorychlostních sítích / Longest Prefix Match in High-Speed NetworksSkačan, Martin January 2013 (has links)
This thesis deals with the Longest Prefix Matching (LPM), which is a time-critical operation in packet forwarding. To achieve 100Gbps throughput, this operation has to be implemented in hardware and a forwarding table has to fit into the on-chip memory, which is limited by its small size. Current LPM algorithms need large memory to store IPv6 forwarding tables or cannot be simply implemented in HW. Therefore we performed an analysis of available IPv6 forwarding tables and several LPM algorithms. Based on this analysis, we propose a new algorithm which is able to provide very low memory demands for IPv4/IPv6 lookups. To the best of our knowledge, the proposed algorithm has the lowest memory requirements in comparison to existing LPM algorithms. Moreover, the proposed algorithm is suitable for IP lookup in 100Gbps networks, which is shown on new pipelined hardware architecture with 140Gbps throughput.
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Analýza a predikce výsledků ligových utkání / Analysis and prediction of league games resultsŠimsa, Filip January 2015 (has links)
The thesis is devoted to an analysis of ice hockey matches results in the highest Czech league competition in seasons 1999/2000 to 2014/2015 and to prediction of the following matches. We describe and apply Kalman filter theory where forms of teams represent an unobservable state vector and results of matches serve as measurements. Goal differences are identified as a suitable transformation of a match result. They are used as a dependent variable in a linear regression to find significant predictors. For a prediction of a match result we construct an ordinal model with those predictors. By using generalized Gini coefficient, we compare a diversifica- tion power of this model with betting odds, which are offered by betting companies. At the end, we combine knowledge of odds before a match with other predictors to make a prediction model. This model is used to identify profitable bets. 1
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Hodnocení vybraných složek individuálního herního výkonu ve fotbale u starší přípravky / Assessment of selected components of game performance in soccer in the U10 categoryVáňa, Roman January 2020 (has links)
Title: Assessment of selected components of game performance in soccer in the U10 category Objectives: The main objective is to determine the relationship between selected indicators of fundamental motor skills, physical skills, specific football skills and the success of game indicators in a match for 9-year-old football players. At the same time, the aim of the work is to find out the current level of fitness and their comparison with the population norm. Methods: Quantitative research with empirical elements was used for the practical part of this thesis. The method of measurement and observation was chosen as the research method. The research group consisted of U10 players from the AC Sparta Prague (n = 16). The level of fundamental motor skills was determined by using the TGMD-2 test (Test of Gross Motor Development), the level of specific football skills was determined using slalom and LSPT (Loughborough Soccer Passing Test), the level of fitness was determined using the agility test and beep test. The success of the game skills in the match (passing and 1on1) was determined from the video recordings of selected matches. Results: No relationship was found between the evaluated performance based on the analysis of the success of selected game skills and the basic motor skills evaluated by the...
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Analýza herního zatížení ve sportovních hrách na přikladu volejbalu / Analysis of the sports game loading by help of volleyball exampleHank, Mikuláš January 2020 (has links)
The aim of this dissertation was to evaluate and statistically compare the data of the distance of movement and player load (PL) with respect to the player specializations and with respect to the result of rallies. The analysis used the method of 3D kinematic motion analysis of a video recording of the official play-off match in the elite women's category. 3D reconstruction accuracy was calculated with a standard deviation of 0.0296 m (0.3%). A total of 14 players were evaluated (age = 25 ± 6 years; height = 182.3 ± 6.2 cm; weight = 72.1 ± 5.8 kg) in a total of 4 sets. 85% of all rallies lasted up to 12.4 s and 95% lasted up to 18 s. The average duration of the rally reached 7.76 ± 5.1 s. In the range of 0.7 m to 2 m was performed 91.8 ± 1.3 % of distance of movement over 0.7 m. In the range of 0 m to 0.7 m, the specialization spiker reached 60.5% of the total distance of movement. For blocker it was 59.8%, setter reached 54.1%, Opposite reached 62.1% and libero 57.9%. The highest ratio of movement was reached by the spiker for the forward direction (35.8%). The highest distance of movement was reached by the setter (1648 m). Players reached at 50 % speed value from 1.32 m/s in the backward direction for the blocker and setter, up to the maximum speed at 50 % for the setter with a value of 2.09 m/s...
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Model Selection and Uniqueness Analysis for Reservoir History MatchingRafiee, Mohammad Mohsen 28 January 2011 (has links)
“History matching” (model calibration, parameter identification) is an established method for determination of representative reservoir properties such as permeability, porosity, relative permeability and fault transmissibility from a measured production history; however the uniqueness of selected model is always a challenge in a successful history matching.
Up to now, the uniqueness of history matching results in practice can be assessed only after individual and technical experience and/or by repeating history matching with different reservoir models (different sets of parameters as the starting guess).
The present study has been used the stochastical theory of Kullback & Leibler (K-L) and its further development by Akaike (AIC) for the first time to solve the uniqueness problem in reservoir engineering. In addition - based on the AIC principle and the principle of parsimony - a penalty term for OF has been empirically formulated regarding geoscientific and technical considerations. Finally a new formulation (Penalized Objective Function, POF) has been developed for model selection in reservoir history matching and has been tested successfully in a North German gas field. / „History Matching“ (Modell-Kalibrierung, Parameter Identifikation) ist eine bewährte Methode zur Bestimmung repräsentativer Reservoireigenschaften, wie Permeabilität, Porosität, relative Permeabilitätsfunktionen und Störungs-Transmissibilitäten aus einer gemessenen Produktionsgeschichte (history).
Bis heute kann die Eindeutigkeit der identifizierten Parameter in der Praxis nicht konstruktiv nachgewiesen werden. Die Resultate eines History-Match können nur nach individueller Erfahrung und/oder durch vielmalige History-Match-Versuche mit verschiedenen Reservoirmodellen (verschiedenen Parametersätzen als Startposition) auf ihre Eindeutigkeit bewertet werden.
Die vorliegende Studie hat die im Reservoir Engineering erstmals eingesetzte stochastische Theorie von Kullback & Leibler (K-L) und ihre Weiterentwicklung nach Akaike (AIC) als Basis für die Bewertung des Eindeutigkeitsproblems genutzt. Schließlich wurde das AIC-Prinzip als empirischer Strafterm aus geowissenschaftlichen und technischen Überlegungen formuliert. Der neu formulierte Strafterm (Penalized Objective Function, POF) wurde für das History Matching eines norddeutschen Erdgasfeldes erfolgreich getestet.
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Investigations for the Development of a Physiological Profile in Women's SoccerMartinez Lagunas, Vanessa 17 July 2018 (has links)
The present PhD thesis is compilation of various investigations for the development of a physiological profile in women’s soccer. After an extensive literature review, several literature gaps in this area were identified including: physiological demands of a women’s soccer match including simultaneous measurements with portable metabolic equipment and GPS technology; physical performance analysis of women’s soccer competitive matches of different competition levels using GPS technology; and fitness testing and fitness profiles of female soccer players of different competitive levels by means of laboratory and field tests. The investigations that are part of this thesis targeted these gaps and provided for the first time novel and objective findings in these subjects. The popularity of women’s soccer as well as the number of female soccer players worldwide has increased exponentially in the last 30 years. Furthermore, there are now multiple women’s soccer international competitions and professional leagues around the globe and they will continue to increase in the next few years. Therefore, there is currently high demand for scientific research specific to the women’s game in these topics which may aid coaches, physical trainers, and other practitioners to develop more effective fitness assessments and training programs for their female players in order to improve their fitness status and overall match performance according to their competitive level and positional role.:DEDICATION iii
ACKNOWLEDGMENTS iv
BIBLIOGRAPHICAL INFORMATION vi
ABSTRACT vii
LIST OF PUBLICATIONS viii
TABLE OF CONTENTS ix
LIST OF TABLES xi
LIST OF FIGURES xii
LIST OF ABBREVIATIONS xiii
1 INTRODUCTION 1
1.1. WOMEN’S SOCCER BACKGROUND 1
1.2. PHYSICAL AND PHYSIOLOGICAL CHARACTERISTICS OF FEMALE SOCCER PLAYERS 3
1.3. PHYSICAL AND PHYSIOLOGICAL DEMANDS OF WOMEN’S SOCCER 4
2 DISSERTATION AIMS 6
3 STATE OF THE ART 8
3.1. PORTABLE METABOLIC, HEART RATE AND BLOOD LACTATE MEASUREMENTS 8
3.2. GLOBAL POSITIONING SYSTEM (GPS) MEASUREMENTS 9
3.3. TEST PROTOCOLS 10
3.3.1. ANTHROPOMETRY ASSESSMENT 10
3.3.2. AEROBIC CAPACITY TESTS 11
3.3.3. SPEED, ANAEROBIC ABILITY AND EXPLOSIVE POWER TESTS 15
4 OWN AREAS OF RESEARCH 18
4.1. PHYSIOLOGICAL DEMANDS OF A WOMEN’S FOOTBALL MATCH (ENGLISH SUMMARY FROM “PHYSIOLOGISCHE BEANSPRUCHUNG EINES FRAUENFUẞBALLSPIELS)” – (P-I) 18
4.2. GPS PERFORMANCE ANALYSIS OF WOMEN’S SOCCER COMPETITIVE MATCHES OF THE SECOND AND FOURTH GERMAN LEAGUES – (P-IV) 21
4.3. VALIDITY OF THE YO-YO INTERMITTENT RECOVERY TEST LEVEL 1 FOR DIRECT MEASUREMENT OR INDIRECT ESTIMATION OF MAXIMAL OXYGEN UPTAKE AMONG FEMALE SOCCER PLAYERS – (P-II) 25
4.4. FITNESS PROFILES OF GERMAN FEMALE SOCCER PLAYERS (UNPUBLISHED RESULTS) 26
5 CONCLUSIONS AND OUTLOOK 31
5.1. MAIN FINDINGS 31
5.2. PRACTICAL APPLICATIONS 33
5.3. STRENGTHS AND LIMITATIONS 33
5.4. FUTURE DIRECTIONS 34
6 REFERENCES 36
EIGENSTÄNDIGKEITSERKLÄRUNG 39
AUTHOR’S RESUME 40
ORIGINAL PUBLICATIONS 42
PUBLICATION 1 (P-I) 43
PUBLICATION 2 (P-II) 50
PUBLICATION 3 (P-III) 58
PUBLICATION 4 (P-IV) 74
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Predictive Lane Boundary-Detection in Roads with Non-Uniform Surface IlluminationParajuli, Avishek 13 June 2013 (has links)
No description available.
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Design and Evaluation of Service Selection in Mobile Edge Cloud / Design och utvärdering av tjänsteval i mobilt kantmolnWu, Erfan January 2021 (has links)
With the development of 5G technology and edge computing, more and more network application services have been migrated to the cloud network in order to improve the performance, availability and ensure Quality of Service. Edge computing has essentially changed the service deployment model and reduce the latency further for better customer experience, which is realized by deploying network service replicas in geographically distributed edge sites. However, how to discover edge application servers and select a proper instance to serve the edge users becomes an important research topic. This master thesis project addresses the problem by leveraging DNS based service selection mechanism, designing and implementing stable match based service selection algorithms with the aim of minimizing latency between edge users and services and balance the load among edge sites, and integrating the solutions by RESTful APIs. To evaluate the performance of the service selection algorithms, a set of experiments are carried on different simulated topologies with different traffic pattern. The experimental results show that the stable match algorithm and its variants can significantly reduce the average latency by up to 50% compared to traditional approaches, while the enhanced stable match based algorithms are able to have the same load balancing effect with the widely used Round Robin algorithm. / Med utvecklingen av 5G-teknik och edge computing har fler nätverkstjänster migrerats till molnätet för att förbättra prestanda, tillgänglighet och säkerställa servicekvalitet. Edge computing har i huvudsak förändrat tjänster distribution modellen och minskat latensen ytterligare för bättre kundupplevelse, vilket realiseras genom att distribuera nätverkstjänstreplikat på geografiskt distribuerade kantsajter. Hur man upptäcker kantappservrar och väljer en rätt instans för att betjäna kantanvändarna blir dock ett viktigt forskningsämne. Detta projekt löser problemet genom att utnyttja DNS-baserad mekanism för tjänstval, designa och implementera stabila matchbaserade algoritmer för tjänsteval i syfte att minimera latens mellan kantanvändare och tjänster och balansera belastningen mellan kantsajter och integrera lösningarna med RESTful API:er. För att utvärdera prestandan för algoritmerna för val av tjänster utförs en uppsättning experiment på olika simulerade topologier med olika trafikmönster. De experimentella resultaten visar att den stabila matchningsalgoritmen och dess varianter avsevärt kan minska den genomsnittliga latensen med upp till 50% jämfört med traditionella metoder, medan de förbättrade stabila matchbaserade algoritmerna kan ha samma belastningsbalanseringseffekt med den mycket använda Round Robin algoritm.
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