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About

Ramiro Gonçalves is an Associate Professor with Habilitation at University of Trás-os-Montes e Alto Douro, in Vila Real, Portugal, and a Senior Researcher at INESC TEC Associated Laboratory, Porto, Portugal. Ramiro is currently the Executive Director of the PhD degree in Informatics and has has several publications (including book chapters, Scientific Citation Index journal articles, as well as publications in refereed conference proceedings) in the field of Computer Science: Information Systems, e-business and accessibility web.

More detail in:

http://www.degois.pt/visualizador/curriculum.jsp?key=1816434909179886

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Details

Details

  • Name

    Ramiro Gonçalves
  • Cluster

    Computer Science
  • Role

    Research Coordinator
  • Since

    01st June 2012
002
Publications

2020

BlockU: Extended usage control in and for Blockchain

Authors
Khan, Y; Syed, TA; Fariz, M; Moreira, F; Branco, F; Martins, J; Gonçalves, R;

Publication
Expert Systems

Abstract
An electronic business transaction among untrusted bodies without consulting a mutually trusted party has remained widely accepted problem. Blockchain resolves this problem by introducing peer-to-peer network with a consensus algorithm and trusted ledger. Blockchain originally introduced for cryptocurrency that came with proof-of-work consensus algorithm. Due to some performance issues, scientists brought concept of permissioned Blockchain. Hyperledger Fabric is a permissioned Blockchain targeting business-oriented problems for industry. It is designed for efficient transaction execution over Blockchain with pluggable consensus model; however, there is limitation of rapid application development. Hyperledger introduced a new layer called Hyperledger Composer on top of the Fabric layer, which provides an abstract layer to model the business application readily and quickly. Composer provides a smart contract to extend the functionality and flexibility of Fabric layer and provides a way of communication with other systems to meet business requirements. Hyperledger Composer uses role-based access control (RBAC) model to secure access to its valuable assets. However, RBAC is not enough because many business deals require continuous assets monitoring. Our proposed model, BlockU, covers all possible access control models required by a business. BlockU can monitor assets continuously during transactions and updates attributes accordingly. Moreover, we incorporate hooks in Hyperledger Composer to implement extended permission model that provides extensive permission management capability on an asset. Subsequently, our proposed enhanced access control model is implemented with a minimal change to existing Composer code base and is backward compatible with the current security mechanism. © 2020 John Wiley & Sons, Ltd

2020

The Influence of Digital Marketing Tools Perceived Usefulness in a Rural Region Destination Image

Authors
Jorge, F; Teixeira, MS; Gonçalves, R;

Publication
Trends and Innovations in Information Systems and Technologies - Volume 3, WorldCIST 2020, Budva, Montenegro, 7-10 April 2020.

Abstract
In rural destinations like Douro region, tourism activities may be important to territories’ development because they use some of their natural resources and endogenous products, develop another related local economy business, and contributes to population fixation. Technologies can support the promotion and distribution of these destinations, namely digital marketing tools. The present study aims to analyze the influence that some of these tools perceived usefulness, from the tourist point of view, have on a rural destination image. To accomplish this, it was used a sample of 555 tourists visiting Douro destination and data collected were analyzed using structural equation modeling. The results demonstrated that tourist’s trust in tourism digital marketing tools and their attitude toward these tools have an indirect effect on destination image. Moreover, the perceived usefulness of some digital marketing tools utilized to search, plan or purchase Douro destination, as website, booking and mobile devices, has also a positive effect on this destination image. On another hand, the perceived usefulness of a conventional channel, as travel agencies, has a negative effect on this rural destination image. This research provided some interesting insights for practitioners working in tourism destination marketing. © 2020, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG.

2019

Using POI functionality and accessibility levels for delivering personalized tourism recommendations

Authors
Santos, F; Almeida, A; Martins, C; Goncalves, R; Martins, J;

Publication
Computers, Environment and Urban Systems

Abstract

2019

How smartphone advertising influences consumers' purchase intention

Authors
Martins, J; Costa, C; Oliveira, T; Goncalves, R; Branco, F;

Publication
Journal of Business Research

Abstract

2019

Examining social capital and individual motivators to explain the adoption of online citizen participation

Authors
Naranjo Zolotov, M; Oliveira, T; Cruz Jesus, F; Martins, J; Goncalves, R; Branco, F; Xavier, N;

Publication
Future Generation Computer Systems

Abstract

Supervised
thesis

2019

Metodologias e técnicas de avaliação das NE de acessibilidade em procedimentos de compras públicas de produtos e serviços de TIC

Author
Márcio Ricardo Alves Martins

Institution
UTAD

2019

Desenvolvimento de uma arquitectura de suporte WEB 2.0 para customização do processo de fidelização 360º do Cliente de O.P.S.S.

Author
Duarte Nuno Vaz Leite de Magalhães

Institution
UTAD

2019

MODELO DE SMART PLACES CONFIÁVEL

Author
António Brandão

Institution
UTAD

2019

Sistema de deteção de intrusões para a _x000B_Internet das Coisas

Author
Leonel Santos

Institution
UTAD

2019

Inovação e ensino superior: uma proposta estratégica para a implementação e disseminação do e-learning a nível institucional

Author
Gonçalo Alexandre Cruz Conde Matos

Institution
UTAD