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About

About

I am a professor at the Scientific Area of Mathematics in the School of Technology and Management of the Polytechnic Institute of Viana do Castelo (ESTG-IPVC) and member of the Laboratory in Artificial Intelligence and Decision Support (LIAAD – INESC TEC) of the University of Porto. I have a Msc in Mathematics by the University of Minho and a PhD in Applied Mathematics by the University of Porto in 2014.

My main research lines are Data Analysis; Symbolic Data Analysis (Analysis of multidimensional complex data) and Linear regression models. I work in the development and application of methods adapted to data carrying a lot of information. This research is included in the framework of Symbolic Data Analysis.

Moreover, I collaborate with bio-informaticians and chemistry researchers for the development of mathematical models applied to agent-based modelling. 

Interest
Topics
Details

Details

  • Name

    Sónia Dias
  • Role

    Senior Researcher
  • Since

    01st April 2012
001
Publications

2024

Enhancing Dyeing Processes with Machine Learning: Strategies for Reducing Textile Non-Conformities

Authors
Carvalho, M; Borges, A; Gavina, A; Duarte, L; Leite, J; Polidoro, MJ; Aleixo, SM; Dias, S;

Publication
Proceedings of the 16th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management, IC3K 2024, Volume 1: KDIR, Porto, Portugal, November 17-19, 2024.

Abstract
The textile industry, a vital sector in global production, relies heavily on dyeing processes to meet stringent quality and consistency standards. This study addresses the challenge of identifying and mitigating non-conformities in dyeing patterns, such as stains, fading and coloration issues, through advanced data analysis and machine learning techniques. The authors applied Random Forest and Gradient Boosted Trees algorithms to a dataset provided by a Portuguese textile company, identifying key factors influencing dyeing non-conformities. Our models highlight critical features impacting non-conformities, offering predictive capabilities that allow for preemptive adjustments to the dyeing process. The results demonstrate significant potential for reducing non-conformities, improving efficiency and enhancing overall product quality.

2022

Analysis of Distributional Data

Authors
Brito, P; Dias, S;

Publication

Abstract

2022

Regression Analysis with the Distribution and Symmetric Distribution Model

Authors
Dias, S; Brito, P;

Publication
Analysis of Distributional Data

Abstract

2022

Descriptive Statistics based on Frequency Distribution

Authors
Dias, S; Brito, P;

Publication
Analysis of Distributional Data

Abstract

2022

Fundamental Concepts about Distributional Data

Authors
Dias, S; Brito, P;

Publication
Analysis of Distributional Data

Abstract

Supervised
thesis

Modelos de Regressão Linear para Variáveis Intervalares: Uma extensão do modelo ID

Author
Pedro Jorge Correia Malaquias

Institution
IPVC