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de interesse
Detalhes

Detalhes

  • Nome

    Adelaide Figueiredo
  • Cluster

    Informática
  • Cargo

    Investigador Sénior
  • Desde

    01 dezembro 2011
Publicações

2020

Export Promotion Programs: Differences between Advanced and Emerging Economies

Autores
Ribeiro, J; Figueiredo, A; Forte, R;

Publicação
Journal of East-West Business

Abstract

2018

Design of Sampling Plans for Sensory Evaluation

Autores
Figueiredo, FO; Figueiredo, AM; Gomes, MI;

Publicação
INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2018 (ICCMSE-2018)

Abstract
Sensory tests are quality assurance tools commonly used to measure and/or detect the presence of abnormal characteristics perceived through the senses in lots of raw material and final products in many manufacturing and food industries. In this paper two acceptance sampling plans for sensory evaluation are designed, and an illustration of the performance of such plans applied to a real data set is presented.

2018

Acceptance-Sampling Plans for Reducing the Risk Associated with Chemical Compounds

Autores
Figueiredo, F; Figueiredo, A; Gomes, MI;

Publicação
Contributions to Statistics - Recent Studies on Risk Analysis and Statistical Modeling

Abstract

2017

Clustering Directions Based on the Estimation of a Mixture of Von Mises-Fisher Distributions

Autores
Figueiredo, A;

Publicação
The Open Statistics & Probability Journal

Abstract

2017

Bootstrap and permutation tests in ANOVA for directional data

Autores
Figueiredo, A;

Publicação
COMPUTATIONAL STATISTICS

Abstract
The problem of testing the null hypothesis of a common direction across several populations defined on the hypersphere arises frequently when we deal with directional data. We may consider the Analysis of Variance (ANOVA) for testing such hypotheses. However, for the Watson distribution, a commonly used distribution for modeling axial data, the ANOVA test is only valid for large concentrations. So we suggest to use alternative tests, such as bootstrap and permutation tests in ANOVA. Then, we investigate the performance of these tests for data from Watson populations defined on the hypersphere.

Teses
supervisionadas

2019

Evolution of Education over the years in european countries: an Application Evolution of Education over the years in European Countries: an Application of double principal component Analysis of Double principal component analysis

Autor
Catarina Matias Albuquerque

Instituição
UP-FEP

2018

Outlier Detection in Accounting

Autor
João Manuel Oliveira Machado

Instituição
UP-FEP

2018

Double principal components analysis: an application to the labour market in OECD countries

Autor
Anabela Augusta da Silva Couto

Instituição
UP-FEP

2017

Export assistance programmes: differences between advanced and emerging economies

Autor
Joana Soqueiro Ribeiro

Instituição
UP-FEP

2017

Previsão de tempos cirúrgicos num hospital

Autor
Sílvia Susana de Moura Carvalho

Instituição
UP-FEP