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Publications

2022

Which Technologies are Most Frequently Used by Data Scientists?

Authors
Pereira, P; Fernandes, JP; Cunha, J;

Publication
VL/HCC

Abstract
Data collection is pervasively bound to our digital lifestyle. A recent study reports that the growth of the data created and replicated in 2020 was even higher than in the previous years to an astonishing global amount of 64.2 zettabytes of data. There are numerous companies whose services/products rely heavily on data analysis, and mining the produced data has already revealed great value for businesses in different sectors. In order to be able to support the professionals that do this job, typically known as data scientists, we first need to characterize them. To contribute towards this characterization, we conducted a public survey and in this work we present the results about a particular aspects of their life: the tools they use and need.

2022

Preface

Authors
Prieto, J; Partida, A; Leitão, P; Pinto, A;

Publication
Lecture Notes in Networks and Systems

Abstract

2022

Do ensino remoto emergencial ao HyFlex:

Authors
Schlemmer, E; Moreira, JAM;

Publication
Revista da FAEEBA - Educação e Contemporaneidade

Abstract
O Ensino Remoto Emergencial, as Aulas Simultâneas e o Modelo HyFlex representam opções pedagógicas construídas durante a pandemia do COVID-19. Estas propostas situam-se ao nível da solução de problemas, cuja resolução emerge da atenção à vida pragmática, o que implica criatividade. Nesse movimento, um novo nível de atenção é necessário, uma atenção suplementar, o que contribui para a invenção de problemas e onde se potencia a Educação Híbrida e emerge a Educação OnLIFE. O objetivo  deste  artigo,  de  natureza  eminentemente  teórica, último da trilogia "Paradigma de Educação OnLIFE" é discutir as principais abordagens educacionais desenvolvidas em tempos de pandemia e a emersão de um paradigma educacional onde não exista distinção entre offline e online e onde as tecnologias digitais e as redes não sejam encaradas como ferramentas, mas como forças ambientais que afetam a nossa auto-conceção, as nossas interações e como ensinamos e aprendemos.

2022

An Efficient Algorithm for Segmenting Quasi-Periodic Digital Signals Into Pseudo Cycles: Application in Lossy Audio Compression

Authors
Tarjano, C; Pereira, V;

Publication
IEEE ACM Trans. Audio Speech Lang. Process.

Abstract

2022

Internationalization Strategies at a Crossroads: Family Business Market Diffusion in the Post-COVID Era

Authors
Costa, J;

Publication
ECONOMIES

Abstract
COVID-19 is the last nail in the coffin of globalization as we know it. This research aims to explore the influence of capital ownership in the (re)design of internationalization strategies among firms, considering the new macroeconomic challenges. It is commonly accepted that the extent to which family businesses approach internationalization differs from their counterparts; as such, the identification of leverages or hinderers in this process and the potential singularities of these firms is urgent. Intermittences in global operation and discontinuous internationalization paths remain overlooked in the theory. Continuity or intermittence across the internationalization strategies, as well as their determinants, were tested using data from the triennia of 2018, 2019, and 2020; the data were gathered from the Iberian Balance Sheet Analysis System Database (SABI), through a balanced panel of 26,154 firms belonging to all sectors of the manufacturing industry. Empirical evidence supports the heterogeneity of strategies among family businesses, as well as dissimilarities from their non-family counterparts. The firm dimension, experience in global operation, and the regional ecosystem in which the firm is embedded are identified as being central in internationalization endeavors. Urgency and assertiveness of policy action addressing the new macroeconomic challenges are required to foster economic recovery, and exploring extant entrepreneurial fabric potential and the already-established networks will determine the pace and success of the measures. Moreover, empirical evidence reinforces region-specific actions to be implemented, proposing the re-location of economic activities while promoting the intensification of spatial clustering and international networking. Designing an accurate policy package places demands upon heterogeneous players and layers of action, overlapping clusters and networks, and the creation of a multilevel ecosystem in which the flow of economic, human, and knowledge aspects circulate, reinforcing community resilience.

2022

A Smart Contract Architecture to Enhance the Industrial Symbiosis Process Between the Pulp and Paper Companies - A Case Study

Authors
Goncalves, R; Ferreira, I; Godina, R; Pinto, P; Pinto, A;

Publication
BLOCKCHAIN AND APPLICATIONS

Abstract
Pulp and Paper Companies collaborate to monitor and monetize waste and create value from their by-products. This process of Industrial Symbiosis requires the creation and maintenance of trusted and transparent relationships between all entities participating in these networks, which is a constant challenge. In this context, a blockchain-based system can help in establishing and maintaining these networks, serving as a ground truth between companies operating at a national or a global scale. This paper proposes a scalable and modular blockchain architecture design using smart contracts to enhance the industrial symbiosis process of the Pulp, Paper, and Cardboard Production Sector companies in Portugal. This design comprehends all entities participating in the network. The implementation of this design assumes the use of a permissioned ledger built using Hyperledger Fabric to provide the required trust and transparency between all entities.

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