2022
Authors
Ribeiro, J; Clarinha, B; Cunha, D; Zhu, YH; Walter, CE; Au Yong Oliveira, M;
Publication
2022 17TH IBERIAN CONFERENCE ON INFORMATION SYSTEMS AND TECHNOLOGIES (CISTI)
Abstract
Nowadays, and increasingly, Artificial Intelligence (AI) occupies a leading role in the world, being used in the most diverse contexts. The retail sector is just one of them. The starting question that originated this article is: is Portugal receptive to the use of cutting-edge Artificial Intelligence in retail? In other words, what is the opinion of the Portuguese and residents in Portugal, as consumers, regarding the use of automation by retail companies? Based on the analysis of the answers to an online questionnaire (which obtained 132 answers), we will present our conclusions regarding this matter. The goal is to understand if Portuguese people / residents in Portugal are willing and interested in going to supermarkets like Amazon Go or Continente Labs (or Pingo Doce & GO NOVA). In addition, it is intended to understand the reasons that lead them to respond skeptically, so that, in the future, strategies may be initiated by the companies of the sector, which based on greater and better education, may clarify, and perhaps change their assumptions and convictions. The results of this study reveal that the Portuguese and residents in Portugal are not yet interested in using automated supermarkets, showing some mistrust and reticence towards this new technology, although they recognize that it can increase the speed and efficiency of the service. In fact, of the 37,1% of respondents that consider it quite attractive, about 84% believe it may have a significant impact on the reduction of time spent shopping.
2022
Authors
Diogo, José; São Mamede, Henrique;
Publication
Revista de Ciências da Computação
Abstract
O processo de revisão sistemática de literatura em investigação continua a apresentar-se como um processo com um elevado custo de recursos humanos e de tempo. Com vista em otimizar este processo pretende-se estudar a performance da ferramenta de pesquisa Cognitive Search da Microsoft que contem funcionalidades de inteligência artificial (IA). Neste trabalho foi implementada uma solução de pesquisa, i.e., parametrização do serviço de pesquisa, que produz uma classificação de relevância dos artigos científicos. Uma análise qualitativa aos artigos científicos foi efetuada para analisar a performance da solução de pesquisa e habilidades de inteligência artificial da ferramenta. O tema da revisão sistemática é “how is artificial intelligence (AI) being used in Higher Education (HE) today, involving tree dimensions: learning with AI, learning about AI and learning for AI”.;The systematic review process of research literature continues to be a very time and human resource expensive process. With the objective of optimizing this process we intend to study the performance of Microsoft Cognitive Search service which contains artificial intelligence capabilities. In this work the search service tool was configured and parameterized (search solution) to produce a classification ranking of the research articles. These were manually analysed to infer on the performance of the search solution. The topic of the systematic review is “how is artificial intelligence (AI) being used in Higher Education (HE) today, involving tree dimensions: learning with AI, learning about AI and learning for AI”.
2022
Authors
Silva, RP; Mamede, HS;
Publication
Int. J. Innov. Digit. Econ.
Abstract
2022
Authors
Dudkina, E; Villar, J; Bessa, RJ;
Publication
International Conference on the European Energy Market, EEM
Abstract
Decarbonization of energy systems is one of the main tracks in the energy sector, and in this transition, green hydrogen assumes an important role. Considering the variability of renewable energy sources (RES), the flexibility of the hydrogen production could help dealing with imbalances. However, to truly contribute to a greener energy mix, a principle of additivity must be obeyed. In other words, to produce green hydrogen, the energy supplied to the electrolyzers must be renewable and must not entail a decrease in the RES consumed by other loads according to the energy strategic plans. This study integrates power flow tracing (PFT) technique within an optimal power flow (OPF) to determine and maximize the physical flow between the energy from RES generators and the electrolyzer through the existing grid. The proposed method was tested on both radial and meshed IEEE test grids. Simulation results showed that the electrolyzer green supply can be increased by controlling the dispatch of the distributed generators (e.g., CHP) according to the location of the electrolyzer. In addition, installing storage systems nearby load buses allows increasing the amount of green supply by using the RES-based electricity stored. © 2022 IEEE.
2022
Authors
Rodrigues, MIM; Fonseca, MJSd; Garcia, JE;
Publication
Navigating Digital Communication and Challenges for Organizations - Advances in E-Business Research
Abstract
2022
Authors
Jalali, SMJ; Ahmadian, S; Noman, MK; Khosravi, A; Islam, SMS; Wang, F; Catalao, JPS;
Publication
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
Abstract
Tide refers to a phenomenon that causes the change of water level in oceans. Tidal level forecasting plays an important role in many real-world applications especially those related to oceanic and coastal areas. For instance, accurate forecasting of tidal level can significantly increase the vessels' safety as an excessive level of tidal makes serious problems in the movement of vessels. In this work, we propose a deep learning-based prediction interval framework in order to model the forecasting uncertainties of tidal current datasets. The proposed model develops optimum prediction intervals (PIs) focused on the deep learning-based CNN-LSTM model (CLSTM), and nonparametric approach termed as the lower upper bound estimation (LUBE) model. Moreover, we develop a novel deep neuroevolution algorithm based on a two-stage modification of the gaining-sharing knowledge optimization algorithm to optimize the architecture of the CLSTM automatically without the procedure of trial and error. This leads to a decline in the complexity raises in designing manually the deep learning architectures, as well as an enhancement in the performance of the PIs. We also utilize coverage width criterion to establish an excellent correlation appropriately between both the PI coverage probability and PI normalized average width. We indicate the searching efficiency and high accuracy of our proposed framework named as MGSK-CLSTM-LUBE by examining over the practical collected tidal current datasets from the Bay of Fundy, NS, Canada.
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