Estatística - Es
Envíos recientes
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Predição do desempenho de jogadores da National Basketball Association
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 06/09/2024)The objective of this study is to explore an alternative for predicting the technical and tactical performance of athletes in the National Basketball Association (NBA). The focus will be on the individual performance of ... -
Análise técnica e família GARCH para séries temporais financeiras
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 29/09/2024)The stock market is an environment where people buy and sell stocks and financial assets, becoming shareholders of companies with the aim of making profits through dividends and stock appreciation. Today, living off income ... -
Avaliação do poder de testes de raíz unitária em séries temporais AR(1) de diferentes comprimentos
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 09/09/2024)The study of time series is essential in various fields, such as economics and social sciences, as it aids in understanding and predicting phenomena over time. A crucial aspect is the stationarity of the series, which can ... -
Perspectivas pód-Pandemia de COVID-19: Previsão do desemprego no Brasil com o méttodo de Holt-Winters
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 13/08/2024)This study aims to analyze the impact of the COVID-19 pandemic on unemployment rates, with a special focus on the gender gap. Using time series methods, we will focus our attention on understanding how the pandemic has ... -
Uma abordagem baseada em passeios aleatórios para identificar o melhor piloto de Fórmula 1 da história
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 17/09/2024)In the world of motorsports, when we are interested in identifying the best driver, we generally only consider those who have raced in Formula 1, the pinnacle of the global four-wheeled sport. However, the definition of ... -
Um estudo do impacto do draft nas temporadas posteriores da NFL
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 06/09/2024)The National Football League (NFL) is the world’s premier American football league, consisting of 32 teams divided into two conferences and organized into offensive, defensive, and special teams units. Unlike traditional ... -
Análise de dados de estudos independentes: um estudo sobre metanálise
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 20/08/2024)This paper presents the statistical technique of meta-analysis and its applications as a tool for synthesizing scientific evidence, with the goal of understanding its potential in the integration and analysis of results ... -
Um estudo de modelos de riscos competitivos em análise de sobrevivência
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 23/08/2023)Statistical analyzes that involve recording times and the occurrence of one or more events of interest are known as survival or reliability analysis. When analyzing data sets of this nature, one of the objectives is to ... -
Uma análise de regressão logística usando componentes principais
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 25/01/2024)In this Bachelors dissertation we studied, in the context of logistic regression models, the case in which the number of covariables is large and the covariables are correlated. In this situation, we use the principal ... -
Testes múltiplos para comparação de dados funcionais
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 28/03/2023)The recording of human motion is an essential requirement for biomechanical studies aimed at understanding normal and altered movement patterns to propose preventive or rehabilitation programs. In these studies, the analysis ... -
Uso de cadeias de Markov para identificar atribuições em mídias digitais
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 15/09/2022)With the advancement of digital marketing and the rise of new paid media channels for running campaigns and ads aimed at selling products, many advertisers question the use of media that do not directly lead to conversions, ... -
Reconhecimento de entidades nomeadas aplicado em prontuários médicos
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 15/09/2022)A named entity is a real-world object, such as a person (e.g. Alan Turing), a location (e.g. London), or an organization (e.g. UFSCar). Named Entity Recognition (NER) is a subarea of Natural Language Processing (NLP) whose ... -
Modelo de regressão logı́stica com mistura de distribuições : estimadores de máxima verossimilhança e bayesiano utilizando o Stan
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 02/02/2024)We explore the logist regression model, estimating its parameters through maximum likelihood and Bayesian estimators. We use mixtures of distributions for 𝐾 = 1 and 2 components. The Hamiltonian Monte Carlo implemented ... -
Modelo de classificação para dados desbalanceados: método SMOTE e variantes
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 29/01/2024)Often, in classification models, we encounter databases that have highly imbalanced classes, such as: rare disease diagnostic data, manufacturing defects, fraudulent transactions, etc. Training a model on a dataset with ... -
Negrifeminicídio: O feminicídio de mulheres negras no estado de São Paulo
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 20/01/0022)Violence against women and racism are extremely important issues that must be addressed with great care and seriousness. In this work, they will be presented together: the violent deaths of white and black women and their ... -
Análise e previsão de séries temporais via Facebook Prophet
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 29/01/2024)Forecasting is an estimate or projection of what may happen in the future based on information and data available from the past and present. In other words, it is an attempt to make an informed guess about what is likely ... -
Long and short por cointegração aplicado ao mercado acionário brasileiro
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 06/09/2023)In this article, we conduct a detailed analysis of the long and short investment strategy with cointegration in the Brazilian stock market. We explore the correlation between pairs of stocks and propose a trading approach ... -
Utilização de algoritmos de classificação para diagnóstico de diabetes
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 15/02/2024)The undergraduate thesis consists of the study of binary classification algorithms for diagnosing diabetes based on clinical data and physical activity data. For this purpose, we will accomplish a statistical and conceptual ... -
Estudo da prevalência de transtornos mentais comuns via métodos de classificação
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 16/02/2024)The present undergraduate thesis focuses on the study of the association between specific variables and the diagnosis of common mental disorders. To achieve this goal, we examined classification methods, namely decision ... -
Estimação, seleção e predição de redes de neurônios estocásticos com memória de alcance variável
(Universidade Federal de São Carlos, UFSCar, , Câmpus São Carlos, 02/02/2024)The nervous system is subjected to various sources of noise. Neuronal activity recordings reveal that part of this noise is due to electrical firings occurring spontaneously and irregularly, with variations even when the ...