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Tiago Oliveira
Universidade Nova de Lisboa
169Publications
24H-index
2,826Citations
Publications 170
Newest
#1Tiago Oliveira (NOVA: Universidade Nova de Lisboa)H-Index: 24
#2Ricardo Martins (NOVA: Universidade Nova de Lisboa)H-Index: 2
Last.Aleš Popovič (NOVA: Universidade Nova de Lisboa)H-Index: 14
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Abstract In the information management literature, Software-as-a-Service (SaaS) is recognized as a technology capable of providing operational and financial benefits to firms, and it is rising as the dominant IT service delivery model. Considered to be a promising solution it is garnering interest among researchers and professionals. However, SaaS can represent a vulnerability to firms due to its nature. The weighing of the pros and cons leads to firms’ uncertainty regarding SaaS adoption. Throu...
1 CitationsSource
#1Carlos TamH-Index: 6
Last.Tiago OliveiraH-Index: 24
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#1Carlos TamH-Index: 6
Last.Tiago OliveiraH-Index: 24
view all 3 authors...
Tam, C., Loureiro, A., & Oliveira, T. (2019). The individual performance outcome behind e-commerce: Integrating information systems success and overall trust. Internet Research. https://doi.org/10.1108/INTR-06-2018-0262
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#1Paulo Rita (NOVA: Universidade Nova de Lisboa)H-Index: 17
#2Tiago Oliveira (NOVA: Universidade Nova de Lisboa)H-Index: 24
Last.Almira Farisa (ISCTE-IUL: ISCTE – University Institute of Lisbon)
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Abstract The purpose of this study is to develop new knowledge to better understand the most important dimensions of e-service quality that have impact on customer satisfaction, customer trust, and customer behavior, building on existing literature on e-service quality in online shopping. This study focuses on the four-dimensions of e-service quality model that better predict customer behavior. It not only tests the impact of customer satisfaction on customer behavior such as repurchase intentio...
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#1Frederico Cruz-Jesus (NOVA: Universidade Nova de Lisboa)H-Index: 5
#2Andreia Pinheiro (NOVA: Universidade Nova de Lisboa)H-Index: 1
Last.Tiago Oliveira (NOVA: Universidade Nova de Lisboa)H-Index: 24
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Abstract Despite the considerable benefits of CRM, there is a paucity of research considering CRM adoption stages (evaluation, adoption, and routinization). Thus, we developed a conceptual model using the technology-organisation-environment (TOE) framework to examine the antecedents that affect CRM adoption stages in firms. We used partial least squares structural equation modelling (PLS-SEM) with data from 277 firms to test the conceptual model. Data quality and integration, top management supp...
2 CitationsSource
#1Paulo Gil (NOVA: Universidade Nova de Lisboa)H-Index: 14
#2Tiago Oliveira (NOVA: Universidade Nova de Lisboa)H-Index: 24
Last.Luis Brito Palma (NOVA: Universidade Nova de Lisboa)H-Index: 8
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The problem of nonaffine time-varying nonlinear control systems is addressed in this paper through an adaptive state-space neuro–fuzzy control scheme. It combines an eight-layered neuro–fuzzy model to approximate nonaffine nonlinear systems’ dynamics with a state feedback quadratic stabilizing controller. Both the neuro–fuzzy model and controller are updated online within a constrained unscented Kalman filter framework. The proposed generalized state-space neuro–fuzzy model is shown to be an uni...
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#1Albert Acedo (NOVA: Universidade Nova de Lisboa)H-Index: 2
#2Tiago Oliveira (NOVA: Universidade Nova de Lisboa)H-Index: 24
Last.Marco Painho (NOVA: Universidade Nova de Lisboa)H-Index: 19
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Abstract The relationship between sense of place, social capital and civic engagement has been studied in different disciplines. However, their association has been less examined, and their spatial relationship has been analyzed even less. This study contributes to a better understanding of the relationship between these three concepts (i.e., sense of place, social capital and civic engagement). Furthermore, we analyze the crucial role that the spatial relationship between them plays. Using spat...
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#1Paulo Gil (UC: University of Coimbra)H-Index: 14
#2Tiago Oliveira (NOVA: Universidade Nova de Lisboa)H-Index: 24
Last.L. Brito Palma (NOVA: Universidade Nova de Lisboa)H-Index: 5
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This paper proposes a new general recurrent state-space neuro-fuzzy model structure. Three topologies are under assessment, including the state-input recurrent neuro-fuzzy system, the series-parallel recurrent neuro-fuzzy system and the parallel recurrent neuro-fuzzy system. Moreover, the underlying generalised state-space Takagi–Sugeno system is proven to be a universal approximator, and some stability conditions derived for this system. The online training is carried out based on a constrained...
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#1Paulo Noriega (University of Lisbon)H-Index: 8
#2Diana Carvalho (University of Lisbon)H-Index: 1
Last.Francisco Rebelo (University of Lisbon)H-Index: 10
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Some mobile applications present a level of complexity with respect to the functionalities of the graphical interface that are not easily understood by all users in a first approach. The use of instructional overlays (IO) or coach marks is a technique used to guide users to where these features are located in the interface by using a darker layer superimposed to the interface (overlay) where elements are placed such as arrows and text (instructional elements). The effectiveness of the IO was tes...
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#1Tiago Oliveira (University of Lisbon)H-Index: 24
#2Paulo Noriega (University of Lisbon)H-Index: 8
Last.Vanessa Lameira (University of Lisbon)
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Previous studies have shown a relationship between virtual environments and subjectively evaluated emotions. The present study intends to understand if an emotion evaluated subjectively is related to an objective measurement like heart rate. In the study, a design between subjects with two virtual environments was used. A sample of 58 participants participated in this study, in two immersive virtual environments: Helix® (a roller coaster experience, n = 36); and Yana® (experience of sunset/sunri...
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