Detalhes
Nome
Maximino BessaCargo
Investigador SéniorDesde
01 março 2009
Nacionalidade
PortugalCentro
Computação Centrada no Humano e Ciência da InformaçãoContactos
+351222094199
maximino.bessa@inesctec.pt
2024
Autores
Narciso, D; Melo, M; Rodrigues, S; Dias, D; Silva Cunha, JP; Raposo, JV; Bessa, M;
Publicação
Virtual Real.
Abstract
2023
Autores
Melo, M; Gontalves, G; Vasconcelos-Raposo, J; Bessa, M;
Publicação
IEEE ACCESS
Abstract
Presence is often used to evaluate Virtual Reality (VR) applications. However, the raw scores are hard to interpret and need to be compared to other data to be meaningful. This paper leverages a database of 1909 responses to the Igroup Presence Questionnaire (IPQ) in different contexts to put forward a scale that qualitatively interprets raw Presence scores for VR experiences. The qualitative grading encompasses the acceptability dimension and analogous academic grading scales ranging from A to F and the adjective of such scores in a scale from Excellent to Unacceptable. Furthermore, the qualitative grading system encompasses Presence and its subscales Spatial Presence, Involvement, and Experienced Realism as defined by the IPQ. Adopting this grading system, supported by a robust dataset of Presence scores, enables practitioners to evaluate and interpret individual IPQ scores, allowing them to gain insights regarding the evaluated applications' effectiveness.
2023
Autores
Narciso, D; Melo, M; Rodrigues, S; Cunha, JP; Vasconcelos-Raposo, J; Bessa, M;
Publicação
IEEE Transactions on Visualization and Computer Graphics
Abstract
2023
Autores
Goncalves, G; Coelho, H; Monteiro, P; Melo, M; Bessa, M;
Publicação
ACM COMPUTING SURVEYS
Abstract
The adoption of immersive virtual experiences (IVEs) opened new research lines where the impact of realism is being studied, allowing developers to focus resources on realism factors proven to improve the user experience the most. We analyzed papers that compared different levels of realism and evaluated their impact on user experience. Exploratorily, we also synthesized the realism terms used by authors. From 1,300 initial documents, 79 met the eligibility criteria. Overall, most of the studies reported that higher realism has a positive impact on user experience. These data allow a better understanding of realism in IVEs, guiding future R&D.
2023
Autores
Peixoto, B; Bessa, LCP; Goncalves, G; Bessa, M; Melo, M;
Publicação
IEEE ACCESS
Abstract
This paper investigates the impact of different immersive Virtual Reality (iVR) technological approaches in teaching and learning English as a Foreign Language (EFL). Specifically, this paper explores the passive iVR and interactive iVR in a real authentic learning context as didactic possibilities compared to the conventional method of listening, consisting of audio-only listening exercises. The study was conducted using university students of B1 level EFL classes. The dependent variables considered in the study were Knowledge Retention, Presence, User Satisfaction, Cybersickness, and Preferred Technology. Results indicated that users showed significant satisfaction and preference for using this technology for learning, revealing enjoyment and motivation which are vital factors when learning a foreign language. However, no significant differences were found between learning via traditional listening exercises or the virtual system. Correlation tests were conducted between the questionnaire subscales to understand better which elements can influence learning. The study concludes that using iVR-based learning tools to learn a foreign language as an alternative to audio listening can only produce a broader positive impact and greater motivation. The results also suggest that iVR can be a valuable tool in the education field for knowledge transfer and motivation when learning foreign languages.
Teses supervisionadas
2022
Autor
David Gonçalves Narciso
Instituição
UTAD
2021
Autor
Guilherme Santos Gonçalves
Instituição
UTAD
2021
Autor
Samuel Octávio Varandas Pereira
Instituição
UTAD
2021
Autor
Hugo Rafael Mendes Coelho
Instituição
UTAD
2021
Autor
Pedro Miguel Ermida Monteiro
Instituição
UTAD
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