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Publications

2020

Ten Years Exploring Service Science: Looking Back to Move Forward

Authors
Teixeira, JG; Miguéis, V; Ferreira, MC; Nóvoa, H; Cunha, JF;

Publication
Lecture Notes in Business Information Processing

Abstract
In celebration of the 10th anniversary of the International Conference on Exploring Service Science (IESS), this paper takes a historical look at the papers that have been published in the IESS proceedings. The analysis is focused on the development and evolution of the IESS community and of the main research topics covered by the published papers over time. The IESS community is portrayed in terms of authors, their affiliations and co-authoring network, while the topics are analyzed according to the papers’ keywords. Moreover, this paper analyzes the impact of the papers published in this decade, in terms of citations. These results are then discussed in light of the observed trends and of the evolution of the service science field, to guide the future development of the IESS conference and of research on service science. © Springer Nature Switzerland AG 2020.

2020

Prediction of academic dropout in a higher education institution using data mining [Previsão do abandono académico numa instituição de ensino superior com recurso a data mining]

Authors
Martins, MPG; Migueis, VL; Fonseca, DSB; Gouveia, PDF;

Publication
RISTI - Revista Iberica de Sistemas e Tecnologias de Informacao

Abstract
This study proposes two predictive models of classification that allow to identify, at the end of the 1st and 2nd semesters, the undergraduate students of a higher education institution more prone to academic dropout. The proposed methodology, which combines 3 popular data mining algorithms, such as random forest, support vector machines and artificial neural networks, in addition to contributing to predictive performance, allows to identify the main factors behind academic dropout. The empirical results show that it is possible to reduce to about 1/4 the 4 tens potential predictors of dropout, and show that there are essentially two predictors, concerning student’s curriculum context, that explain this propensity. This knowledge is useful for decision-makers to adopt the most appropriate strategic measures and decisions in order to reduce student dropout rates.

2020

Quality Assurance of Doctoral Education: Current Trends and Future Developments

Authors
Cardoso, S; Rosa, MJ; Miguéis, V;

Publication
Structural and Institutional Transformations in Doctoral Education

Abstract

2019

A Data Mining Approach for Predicting Academic Success – A Case Study

Authors
Martins, MPG; Miguéis, VL; Fonseca, DSB; Alves, A;

Publication
Advances in Intelligent Systems and Computing

Abstract
The present study puts forward a regression analytic model based on the random forest algorithm, developed to predict, at an early stage, the global academic performance of the undergraduates of a polytechnic higher education institution. The study targets the universe of an institution composed of 5 schools rather than following the usual procedure of delimiting the prediction to one single specific degree course. Hence, we intend to provide the institution with one single tool capable of including the heterogeneity of the universe of students as well as educational dynamics. A different approach to feature selection is proposed, which enables to completely exclude categories of predictive variables, making the model useful for scenarios in which not all categories of data considered are collected. The introduced model can be used at a central level by the decision-makers who are entitled to design actions to mitigate academic failure. © 2019, Springer Nature Switzerland AG.

2019

Evaluating the short-term effect of cross-market discounts in purchases using neural networks: A case in retail sector

Authors
Migueis, VL; Camanho, AS; Cunha, JFE;

Publication
Expert Systems

Abstract
Promotional tools such as cross-market discounts have been increasingly used as a means to increase customer satisfaction and sales. This paper aims to assess whether the implementation of a cross-market discount campaign by a retailing company encouraged customers to increase their purchases level. It contributes to the literature by using neural networks to detect novelties in a real context involving cross-market discounts. Besides the computation of point predictions, the methodology proposed involves the estimation of neural networks prediction intervals. Sales predictions are compared with the observed values in order to detect significant changes in customers' spending. The use of neural networks is validated through the comparison with the forecasting estimates of support vector regression, regression trees, and linear regression. The results reveal that the promotional campaign under analysis did not significantly impact the sales of the rewarded customers. © 2019 John Wiley & Sons, Ltd.

Supervised
thesis

2020

Previsão do potencial de vendas na cadeia de pescado com base na procura censurada

Author
Mariana Teixeira de Jesus

Institution
UP-FEUP

2020

Monitorização da integridade de estruturas com recurso a data analytics

Author
João Diogo Alves Morais

Institution
UP-FEUP

2020

A Comparison on Statistical Methods and Long Short Term Memory Network Forecasting the Demand of Fresh Fish Products

Author
Rúben Alexandre da Fonseca Marques

Institution
UP-FEUP

2020

Avaliação do impacto de ações promocionais nas vendas no contexto do retalho alimentar

Author
Maria Francisca Azevedo Paupério

Institution
UP-FEUP

2020

Root cause analysis in semiconductor manufacturing: a propositional vs. relational approach

Author
Eduardo Luís de Meireles e Oliveira

Institution
UP-FEUP