29 documents found, page 1 of 3
ChatGPT based recommendation system for retail shops
Duwadi, S.; Coutinho, C.The rapid growth of e-commerce platforms has emphasized the significance of personalized recommendation systems in enhancing user engagement and satisfaction. This research paper presents the development and evaluation of an innovative Product Recommendation System that leverages advanced Artificial Intelligence (AI) techniques to provide tailored product suggestions. The primary objective is to create a user-c...
Enhancing e-IDs authentication with NFC
Youssef, T.; Campos, A.; Guerreiro, A.; Coutinho, C.In the modern times, the heavy footprint of Information and Communication Technologies in the everyday life brings multiple challenges to the ordinary citizen, like having a digital profile on numerous services and institutions. The spread of authentication services that need to be verified to perform simple tasks is thus overwhelming. Many countries hence developed elaborated solutions to unify some of the aut...
Wildfire detection based on IoT technology
Freira, D.; Coutinho, C.Wildfires are a global concern due to their increasing severity and frequency, resulting in economic, environmental, and human losses. These events primarily affect rural areas with high organic matter accumulation and inadequate surveillance. Traditional fire detection methods rely on sensors that detect heat, smoke particles, specific gases, and radiative emissions. Internet of Things (IoT) technology offers ...
Urban issue reporting applications towards government 2.0
Soares, J.; Coutinho, C.This study examines the role of civic technology within the Government 2.0 framework in addressing urban challenges, focusing on N a Minha Rua LX, a citizen reporting application in Lisbon. Using a mixed-methods approach combining qualitative comparative analysis with case studies, the research evaluates Na Minha Rua LX alongside SeeClickFix, My City Report, and FixMyStreet. Data from official websites, academi...
Smart IoT lightning system for energy consumption optimization
Silva, D.; Mataloto, B.; Coutinho, C.This research details the development of a smart lighting system designed to optimize energy consumption by dynamically adjusting the brightness of a Tapo L530E smart lamp based on real-time ambient light measurements. The system integrates a light intensity sensor, an Arduino MKR WAN 1300 Lora, a Sonoff Dual R3 power consumption monitor, and a Tapo L530E smart lamp, with data communication facilitated through ...
Enhancing energy management in IoT networks
Mota, J.; Coutinho, C.The Internet of Things is nowadays available everywhere, collecting data that can be used for different purposes. These end-devices are available in different formats, and depending on the use case, they need different features in order to function properly. Due to their specific requirements, some of these devices need to be portable, so a battery is an important component. Additionally, choosing the right com...
Factors influencing free and open-source software adoption in developing countr...
Silva, D.; Coutinho, C.; Costa, C.Free Open-Source Software (FOSS) is essentially seen by many organizations as a key pillar for accelerating technological innovation. This study aims to evaluate the extent to which factors such as cost and quality of the system, as well as usability, interoperability, and security, influence the intention to use FOSS. Based on the data obtained from the survey, we propose a new theoretical model that we test a...
Semantic similarity for mobile application recommendation under scarce user data
Coelho, J.; Mano, D.; Paula, B.; Coutinho, C.; Oliveira, J.; Ribeiro, R.; Batista, F.The More Like This recommendation approach is ubiquitous in multiple domains and consists in recommending items similar to the one currently selected by the user, being particularly relevant when user data is scarce. We studied the impact of using semantic similarity in the context of the More Like This recommendation for mobile applications, by leveraging dense representations in order to infer the similarity ...
Electronic voting through blockchain: A survey
Castro, A.; Coutinho, C.As technology advances and more of our lives are digitised, elections are no exception. This paper proposes a survey of the current state of the art blockchain voting protocols by performing a systematic literature review and evaluating 25 selected papers. One of the main objectives of the surveyed proposals was to maintain voter anonymity while ensuring vote verifiability. However, most systems fell short in t...
Remote health monitoring system for the elderly based on mobile computing and IoT
Cardoso, R.; Postolache, O.; Coutinho, C.Due to the increasing technological innovation over the last decades, the average life expectancy of a human being has been increasing exponentially. Although this is an excellent step forward for humanity, it has led older population to being more prone to illness, making them more vulnerable to accidents such as falls. In this article a study is made on the existing literature in non-intrusive remote health m...