13 documents found, page 1 of 2
An ontological model for fire evacuation route recommendation in buildings
Neto, Joaquim; Morais, A. Jorge; Gonçalves, Ramiro Manuel Ramos Moreira; Coelho, António LeçaGuiding the occupants of a building to a safe place is an area of research that deserves the attention of researchers. Finding solutions for the problem of guiding the building occupants requires a perfect knowledge of the fire building evacuation domain. The use of ontologies to model the knowledge of a domain allows a common and shared understanding of that domain. This paper presents an ontology that has the...
A prototype for an intelligent water management system for household use
São Mamede, Henrique; Cortez, João; Gonçalves, Ramiro Manuel Ramos Moreira; Branco, Frederico; Martins, JoséWater scarcity is becoming an issue of more significant concern with a major impact on global sustainability. For it, new measures and approaches are urgently needed. Digital technologies and tools can play an essential role in improving the effectiveness and efficiency of current water management approaches. Therefore, a solution is proposed and validated, given the limited pres- ence of models or technologica...
Geometric and physical building representation and occupant’s movement models f...
Neto, Joaquim; Morais, A. Jorge; Gonçalves, Ramiro Manuel Ramos Moreira; Coelho, António LeçaBuilding evacuation simulation allows for a better assessment of fire safety conditions in existing buildings, which is why it is of interest to develop an easy-to-use web platform that helps fire safety technicians in this assessment. To achieve this goal, the geometric and physical representation of the building and installed fire safety devices are necessary, as well as the modelling of occupant movement. Al...
An ontology for fire building evacuation
Neto, Joaquim; Morais, A. Jorge; Gonçalves, Ramiro Manuel Ramos Moreira; Coelho, António LeçaGuiding the building occupants under fire emergency to a safe place is an open research problem, and finding solutions to address the problem requires a perfect knowledge of the fire building evacuation domain. The use of ontologies to model knowledge of a domain allows a common and shared understanding of that domain, between people and heterogeneous systems. This paper presents an ontology that aims to build ...
Multi-agent-based recommender systems: a literature review
Neto, Joaquim; Morais, A. Jorge; Gonçalves, Ramiro Manuel Ramos Moreira; Coelho, António LeçaConsidering the growing volume of information and services available on the Web, it has become essential to provide Web sites and applications with tools, such as recommender systems, capable of helping their users to obtain the information and services appropriate to their interests. Due to the complexity of Web adaptation and the ability of multi-agent systems to deal with complex problems, the multi-agent sy...
Context-based multi-agent recommender system, supported on IoT, for guiding the...
Neto, Joaquim; Morais, A. Jorge; Gonçalves, Ramiro Manuel Ramos Moreira; Coelho, António LeçaThe evacuation of buildings in case of fire is a sensitive issue for civil society that also motivates the academic community to develop and study solutions to improve the efficiency of evacuating these spaces. The study of human behavior in fire emergencies has been one of the areas that have deserved the attention of researchers. However, this modeling of human behavior is difficult and complex because it dep...
Revisão de fraudes bancárias por SMS ou voz, a partir da análise de dados de te...
Cossa, Osvaldo; Sousa, Nuno; Gonçalves, Ramiro Manuel Ramos Moreira; Martins, José; Branco, Frederico; Martins, JoséNos últimos anos registou-se um crescimento acentuado de fraudes bancárias cometidas por SMS (Short Messaging System) e voz. Um dos fatores que contribui para o aumento de casos de fraudes por SMS é o baixo custo de aquisição de grandes volumes de mensagens, a confiabilidade (a mensagem chegará ao destinatário) e o fato de não precisar de Internet para chegar até a vítima. Em relação as fraudes financeiras por ...
A smart city’s model secured by blockchain
Brandão, António; São Mamede, Henrique; Gonçalves, Ramiro Manuel Ramos MoreiraThe topic of Smart Cities involves various aspects of convergence and support to necessarily safe activities, which are dependent on reliable data and reliable sources. The answer could be provided by means of the adoption model of Blockchain technologies for this purpose, applied to the different characteristics of the city from the electronic governance, the contracting of products and services, and the sensi...
A multi-agent system for recommending fire evacuation routes in buildings, base...
Neto, Joaquim; Morais, A. Jorge; Gonçalves, Ramiro Manuel Ramos Moreira; Coelho, A. LeçaThe herein proposed research project brings together the area of the multi-agent recommender systems and the IoT and aims to study the extent to which a context-based multi-agent recommender system can contribute to improving efficiency in the evacuation of buildings under a fire emergency, recommending the most adequate and efficient evacuation routes in real time.
Systematic review of the literature, research on blockchain technology as suppo...
Brandão, António; São Mamede, Henrique; Gonçalves, Ramiro Manuel Ramos MoreiraThe smart places are vulnerable with corrupted or compromised data, with the false integration of new devices, and devices with firmware versions inconsistent. These risks worsen with the increasing volume and diversity of data, devices, infrastructures and users connected to the Web. The systematic review of the literature were selected 190 documents, which reveals the growing interest on the theme of blockcha...