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Publications

2019

Using Grover's search quantum algorithm to solve Boolean satisfiability problems, part 2

Authors
Fernandes, D; Silva, C; Dutra, I;

Publication
XRDS

Abstract

2019

Towards Industry 4.0

Authors
Lezak, E; Ferrera, E; Rossini, R; Masluszczak, Z; Fialkowska-Filipek, M; Hovest, GG; Schneider, A; Lourenço, EJ; Baptista, AJ; Cardeal, G; Estrela, M; Rato, R; Holgado, M; Evans, S;

Publication
Technological Developments in Industry 4.0 for Business Applications - Advances in Logistics, Operations, and Management Science

Abstract
An overview of the work under development within the EU-funded collaborative project MAESTRI is presented in this chapter. The project provides a framework of new Industrial methodology, integrating several tools and methods, to help industries facing the fourth industrial revolution. This concept, called the MAESTRI Total Efficiency Framework (MTEF), aims to advance the sustainability of manufacturing and process industries by providing a management system in the form of a flexible and scalable platform and methodology. The MTEF is based on four pillars: a) an effective management system targeted at continuous process improvement; b) Efficiency assessment tools to support improvements, optimization strategies and decision-making support; c) Industrial Symbiosis paradigm to gain value from waste and energy exchange; d) an Internet-of-Things infrastructure to support easy integration and data exchange among shop-floor, business systems and MAESTRI tools.

2019

Confirmatory Factor Analysis - A Case study

Authors
Sarmento, RP; Costa, V;

Publication
CoRR

Abstract

2019

Visualization in Reproducible Science A comparative overview of interactive Web Journals and computational notebooks

Authors
Marques, BM; da Silva, JR; Devezas, T;

Publication
2019 14TH IBERIAN CONFERENCE ON INFORMATION SYSTEMS AND TECHNOLOGIES (CISTI)

Abstract
The increasing prevalence of Open Science has brought reproducibility to the center of discussion of the scientific community as a requirement for ensuring the transparency and correctness of a research workflow. The current publishing landscape is evolving, as shown by the emergence of notebook technologies powering a new generation of interactive Web Journals. These use state-of-the-art interactive graphical visualizations and on-demand data processing to research papers, allowing readers to trace every step of the process, from raw data to the finalized visualization. Since there are many Research Notebook technologies and interactive graphical visualization solutions to choose from, we present a summary comparative overview of Web Journals and the Notebook engines that power the interactive, data driven visualizations inside their publications. Given our focus on visualization, our metrics are the support for the most advanced, popular and widely adopted data visualization frameworks. We conclude that Jupyter Notebook is currently the best alternative for the average user, given its popularity and support, combined with broad support for powerful and high-level interactive visualization grammars.

2019

Correlation between Game Experience and Presence in immersive virtual reality games

Authors
Goncalves, G; Coelho, H; Monteiro, P; Melo, M; Bessa, M;

Publication
PROCEEDINGS OF THE 2019 INTERNATIONAL CONFERENCE ON GRAPHICS AND INTERACTION (ICGI 2019)

Abstract
Virtual Reality (VR) technologies have evolved to the point where it is being used in various areas (entertainment, medicine, education, etc.). One of the metrics that allow the evaluation of the virtual experience is Presence. In this work, we conduct an exploratory study that studies which factors of VR games correlate to presence. Various components of games are also shared between other VR applications allowing the results to be applicable not only in VR games. A study with 78 participants divided into 5 groups was conducted where each group played a different VR game. Presence and Game Experience were evaluated. The results indicated multiple positive correlations between subscales of Presence and Game Experience.

2019

Renewable Energy Prosumers in Mediterranean Viticulture Social-Ecological Systems

Authors
Campos, I; Marin Gonzalez, E; Luz, G; Barroso, J; Oliveira, N;

Publication
SUSTAINABILITY

Abstract
The significant energy demands of wine production pose both a challenge and an opportunity for adopting a low-carbon, more sustainable and potentially less expensive energy model. Nevertheless, the (dis)incentives for the wider adoption of local production and self-consumption of energy (also known as "prosumerism") from renewable energy sources (RESs) are still not sufficiently addressed, nor are the broader social ecological benefits of introducing RES as part of a sustainable viticulture strategy. Drawing on the social ecological systems (SESs) resilience framework, this article presents the results of a Living Lab (an action-research approach) implemented in Alentejo (South of Portugal), which is an important wine -producing Mediterranean region. The triangulation of results from the application of a multi-method approach, including quantitative and qualitative methods, provided an understanding of the constraining and enabling factors for individual and collective RES prosumer initiatives. Top enablers are related to society's expectation for a greener wine production, but also the responsibility to contribute to reducing carbon emissions and energy costs; meanwhile, the top constraints are financial, legal and technological. The conclusions offer some policy implications and avenues for future research.

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