2025
Authors
Cordeiro, A; Rocha, LF; Boaventura-Cunha, J; Pires, EJS; Souza, JP;
Publication
COMPUTERS & INDUSTRIAL ENGINEERING
Abstract
The implementation of deep learning approaches based on instance segmentation data remains a challenge for customized scenarios, owing to the time-consuming nature of acquiring and annotating real-world instance segmentation data, which requires a significant investment of semi-professional user labour. Obtaining high-quality labelled data demands expertise and meticulous attention to detail. This requirement can significantly impact the overall implementation process, adding to the complexity and resource requirements of customized scenarios with diverse objects. The proposed work addresses the challenge of generating labelled data for large-scale robotic bin-picking datasets by proposing an easy-to-use automated framework designed to create customized data with accurate labels from CAD models. The framework leverages a photorealistic rendering engine integrated with physics simulation, minimizing the gap between synthetic and real-world data. Models trained using the synthetic data generated by this framework achieved an Average Precision of 86.95%, comparable to the performance of models trained on real-world datasets. Furthermore, this paper provides a comprehensive multi-metric analysis across diverse objects representing distinct industrial applications, including naval, logistics, and aerospace domains. The evaluation also includes the use of three distinct instance segmentation networks, alongside a comparative analysis of the proposed approach against two generative model techniques.
2025
Authors
Chilro, G; Oliveira, P; Nunes, R; Barroso, J; Rocha, T;
Publication
HCI INTERNATIONAL 2024 - LATE BREAKING PAPERS, HCII 2024, PT VIII
Abstract
This study delves into the critical role of third-party applications in enhancing motorcycle interface design, particularly focusing on their potential to revolutionize the rider experience through innovative UI/UX designs. As motorcycles increasingly serve as primary modes of transportation in urban environments, safety concerns escalate, needing effective solutions. The research scrutinizes the main safety challenges faced by motorcycle riders, the influence of thirdparty applications on safety outcomes, and the advantages these applications offer over traditional dashboards. In this context, it is presented a Systematic Literature Review (SLR) methodology. Specifically, articles were selected based on predefined inclusion and exclusion criteria. Results indicate that third-party applications provide customizable solutions that not only offer real-time information about the motorcycle's condition but also mitigate safety risks by minimizing distractions. However, the literature reveals a lack of studies specifically addressing these applications, underscoring their potential as pioneering initiatives to reinforce motorcycle safety.
2025
Authors
Martins, F; Ramalho, F; Santos, L; Alves, N; Palma-Moreira, A; Au-Yong-Oliveira, M;
Publication
MARKETING AND SMART TECHNOLOGIES, ICMARKTECH 2024, VOL 2
Abstract
This case study aims to analyze the impact of the digital transformation on Delta Cafes. To this end, a consumer survey was carried out to understand their perception of the brand, from the products to how the company works and its actions. The sample consisted of 140 participants. An attempt was also made to understand whether the participants' perceptions were independent of whether or not they were Delta Cafes customers. The chi-square test results indicate that Delta Cafes customers are more aware of the brand, both because of the coffee and because of its founder, are more aware of the social responsibility actions carried out by the company and are more involved with organizations that positively impact society. Finally, an interview was conducted with Delta's Systems Director, who has been with the company for 12 years and is currently responsible for 54 employees out of a total of around 3500 employees. The interview lasted approximately 1 h and 15 min, via Zoom. The big challenge is to automatically manage all the processes associated with finance, logistics and production. Delta is looking to digitize the whole organization, which will free people from superfluous tasks and allow them to perform others that matter more. Enterprise Resource Planning (ERP), Customer Relationship Management (CRM) and Electronic Data Interchange (EDI) have all been implemented, as well as e-commerce and m-commerce (Delta Mobile). Dehumanization and loss of human capital are a risk of digitization which Delta Cafes seeks to avoid through trainingone of the pillars of the organization.
2025
Authors
Magalhaes, M; Melo, M; Coelho, A; Bessa, M;
Publication
COMPUTERS & GRAPHICS-UK
Abstract
This paper aims to evaluate how different combinations of multisensory stimuli affect the vividness of users' mental imagery in the context of virtual tourism. To this end, a between-subjects experimental study was conducted with 94 participants, who were allocated to either a positive or a negative immersive virtual environment. The positive environment contained only pleasant multisensory stimuli, whereas the negative contained only unpleasant stimuli. For each of the virtual experiences, a multisensory treasure hunt was developed, where each object found corresponded to a planned combination of stimuli (positive or negative, accordingly). The results showed that positive stimuli involving a higher number of sensory modalities resulted in higher reported vividness. In contrast, when the same multisensory modalities were delivered with negative stimuli, vividness levels decreased - an effect we attribute to potential cognitive overload. Nevertheless, some reduced negative combinations (audiovisual with smell and audiovisual with haptics) remained effective, indicating that olfactory and haptic cues play an important role in shaping users' vividness of mental imagery, even in negative contexts.
2025
Authors
Almeida, F;
Publication
Environment, Innovation and Management
Abstract
2025
Authors
Klöckner, P; Teixeira, J; Montezuma, D; Fraga, J; Horlings, HM; Cardoso, JS; de Oliveira, SP;
Publication
npj Digit. Medicine
Abstract
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