Cookies
Usamos cookies para melhorar nosso site e a sua experiência. Ao continuar a navegar no site, você aceita a nossa política de cookies. Ver mais
Aceitar Rejeitar
  • Menu
Tópicos
de interesse
Detalhes

Detalhes

  • Nome

    Paulo Teles
  • Cluster

    Informática
  • Cargo

    Investigador Sénior
  • Desde

    01 janeiro 2014
Publicações

2021

A test to compare interval time series

Autores
Maharaj, EA; Brito, P; Teles, P;

Publicação
International Journal of Approximate Reasoning

Abstract

2020

Self-Care Behavior Profiles With Arteriovenous Fistula in Hemodialysis Patients

Autores
Sousa, CN; Marujo, P; Teles, P; Lira, MN; Dias, VFF; Novais, MELM;

Publicação
Clinical Nursing Research

Abstract

2020

Radial-cephalic fistula recovered with graft interposition from the brachial artery into the cephalic vein-Patient with two arteriovenous fistulas

Autores
Sousa, CN; Cabrita, F; Rodrigues, S; Ventura, A; de Matos, AN; Almeida, P; Teles, P; Loureiro, L; Xavier, E;

Publicação
THERAPEUTIC APHERESIS AND DIALYSIS

Abstract

2019

Clustering of interval time series

Autores
Maharaj, EA; Teles, P; Brito, P;

Publicação
Statistics and Computing

Abstract
Interval time series occur when real intervals of some variable of interest are registered as an ordered sequence along time. We address the problem of clustering interval time series (ITS), for which different approaches are proposed. First, clustering is performed based on point-to-point comparisons. Time-domain and wavelet features also serve as clustering variables in alternative approaches. Furthermore, autocorrelation matrix functions, gathering the autocorrelation and cross-correlation functions of the ITS upper and lower bounds, may be compared using adequate distances (e.g. the Frobenius distance) and used for clustering ITS. An improved procedure to determine the autocorrelation function of ITS is proposed, which also serves as a basis for clustering. The different alternative approaches are explored and their performances compared for ITS simulated under different setups. An application to sea level daily ranges, observed at different locations in Australia, illustrates the proposed methods. © 2019, Springer Science+Business Media, LLC, part of Springer Nature.

2018

The effect of temporal aggregation on the estimation accuracy of ARMA models

Autores
Teles, P; Sousa, PSA;

Publicação
Communications in Statistics - Simulation and Computation

Abstract

Teses
supervisionadas

2020

Índice de Globalização das Regiões Portuguesas

Autor
João Paulo Gomes Lima

Instituição
UP-FEP

2019

Market Sizing for "Reduced-Risk Products" in the Tobacco Industry

Autor
Liliana Cristina Correia da Silva

Instituição
UP-FEP

2019

Does the Derivative Usage, for Risk Management Purposes Change During a Financial Crisis? - Evidence from the U.K. electricity companies from 2006-2014

Autor
Cláudia Letícia Gomez Fernandes

Instituição
UP-FEP

2018

A internacionalização de empresas tecnológicas a partir de Portugal – uma visão do Modelo do Tripé Estratégico

Autor
Mário Jorge Castro Santos

Instituição
UP-FEP

2018

Impacto da Economia Colaborativa no Turismo da Cidade do Porto - estudo caso Airbnb

Autor
Francisco Teixeira Dias Ferreira Matos

Instituição
UP-FEP