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Análise de séries temporais multivariadas via Wavelet
(Universidade Federal de São Carlos, 2023-08-24)
After the mid-1980s, wavelet theory quickly spread to many fields. Although wavelet analysis has the ability to decompose data into various time scales and to deal with nonstationary data and time location, this methodology ...
Estudo e comparação das técnicas de validação cruzada desenvolvidas para séries temporais
(Universidade Federal de São Carlos, 2022-04-18)
Testing the generalization capacity of an algorithm obtained is crucial for any prediction methodology, for which cross-validation methods were developed. However, when dealing with data that have dependency among observations, ...
Modelo de Séries Temporais Autorregressivo Periódico - PAR
(Universidade Federal de São Carlos, 2021-06-20)
This work presents the study of a type of time series model, called
of periodic autoregressive model, which emerged from the researches of Thomas and Fiering
(1962), according to Hipel and McLeod (1994). Its use is mainly ...
Um estudo sobre wavestrap
(Universidade Federal de São Carlos, 2021-06-30)
Wavelets are basis of function spaces that can be used to represent both continuous
(functions) and discrete (sequences) signals; wavelets study gained great notoriety after
the work of Daubechies, who developed a wavelet ...
Efeitos da Lei Maria da Penha na Região Sudeste
(Universidade Federal de São Carlos, 2020-12-11)
In Brazil, records of domestic violence and femicide are considered very high and represent one of the most expressive forms of violence in the country. It is of interest to investigate the behavior of these registered ...
Estudo do teste SNHT (Standart Normal Homogeneity Test) para detecção de pontos de mudança em séries temporais
(Universidade Federal de São Carlos, 2021-06-20)
The study of time series is extremely important for a better understanding
how certain events develop over time. To do this, be able to
to indicate the exact moment when a given phenomenon changes its pattern of
behavior ...