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A Graph Database Representation of Portuguese Criminal-Related Documents
Publication . Carnaz, Gonçalo; Nogueira, Vitor Beires; Antunes, Mário
Organizations have been challenged by the need to process an increasing amount of data, both structured and unstructured, retrieved from heterogeneous sources. Criminal investigation police are among these organizations, as they have to manually process a vast number of criminal reports, news articles related to crimes, occurrence and evidence reports, and other unstructured documents. Automatic extraction and representation of data and knowledge in such documents is an essential task to reduce the manual analysis burden and to automate the discovering of names and entities relationships that may exist in a case. This paper presents SEMCrime, a framework used to extract and classify named-entities and relations in Portuguese criminal reports and documents, and represent the data retrieved into a graph database. A 5WH1 (Who, What, Why, Where, When, and How) information extraction method was applied, and a graph database representation was used to store and visualize the relations extracted from the documents. Promising results were obtained with a prototype developed to evaluate the framework, namely a name-entity recognition with an F-Measure of 0.73, and a 5W1H information extraction performance with an F-Measure of 0.65.
Information Security and Cybersecurity Management: A Case Study with SMEs in Portugal
Publication . Antunes, Mário; Maximiano, Marisa; Gomes, Ricardo; Pinto, Daniel
Information security plays a key role in enterprises management, as it deals with the confidentiality, privacy, integrity, and availability of one of their most valuable resources: data and information. Small and Medium-sized enterprises (SME) are seen as a blind spot in information security and cybersecurity management, which is mainly due to their size, regional and familiar scope, and financial resources. This paper presents an information security and cybersecurity management project, in which a methodology based on the well-known ISO-27001:2013 standard was designed and implemented in fifty SMEs that were located in the center region of Portugal. The project was conducted by a business association located at the center of Portugal and mainly participated by SMEs. The Polytechnic of Leiria and an IT auditing/consulting team were the other two entities that participated on the project. The characterisation of the participating enterprises, the ISO-27001:2013 based methodology developed and implemented in SMEs, as well as the results obtained in this case study, are depicted and analysed in the paper. The attained results show a clear benefit to the audited and intervened SMEs, being mainly attested by the increasing of their information security management robustness and collaborators’ cyberawareness.
Does Symptom Recognition Improve Self-Care in Patients with Heart Failure? A Pilot Study Randomised Controlled Trial
Publication . Sousa, Joana Pereira; Neves, Hugo; Pais-Vieira, Miguel
Patients with heart failure have difficulty in self-care management, as daily monitoring and recognition of symptoms do not readily trigger an action to avoid hospital admissions. The purpose of this study was to understand the impact of a nurse-led complex intervention on symptom recognition and fluid restriction. A latent growth model was designed to estimate the longitudinal effect of a nursing-led complex intervention on self-care management and quality-of-life changes in patients with heart failure and assessed by a pilot study performed on sixty-three patients (33 control, 30 intervention). Patients in the control group had a higher risk of hospitalisation (IRR 11.36; p < 0.001) and emergency admission (IRR 4.24; p < 0.001) at three-months follow-up. Analysis of the time scores demonstrated that the intervention group had a clear improvement in self-care behaviours (βSlope. Assignment_group = −0.881; p < 0.001) and in the quality of life (βSlope. Assignment_group = 1.739; p < 0.001). This study supports that a nurse-led programme on symptom recognition and fluid restriction can positively impact self-care behaviours and quality of life in patients with heart failure. This randomised controlled trial was retrospectively registered (NCT04892004).
A study on microinjection moulding using moulding blocks by additive micromanufacturing
Publication . J C Vasco; Pouzada, A. S.
Microinjection moulding is one of the most efficient replication methods for polymeric components in microsystems. The manufacturing of moulding blocks for complex geometries is resorting increasingly to the techniques of rapid prototyping. This development on the use of additive microtechnologies can promote the massification of microsystems within a shorter tooling development cycle time. However, the microinjection moulding process itself has mechanical and thermal demands that must be addressed and require specific consideration of the selection of the tool material. This constrains the selection of the best-suited additive manufacturing process. The current state of the art of additive manufacturing technologies at the micrometric scale favours laser sources to process layer by layer the media contained in a vat. The media type, the laser power and the laser spot size are parameters that can influence the replication tool tolerances and physical properties. This work explores the possibilities of two additive technology tooling approaches for microinjection moulding, using different materials. The research parameters included replication detailing onto the plastic part, surface roughness, microtool integrity and wear. The evaluation of these parameters was carried out using both optical and hybrid microscopy, a laser perthometer as a non-contact solution for surface roughness evaluation, scanning electron microscopy and X-ray spec-troscopy. The results of this research work showed that the processed material and technology play an important role both on surface quality and tool life, enabling criteria definition for technology selection.
Emoções e Tecnologia no Turismo: O Papel da Robótica na Experiência Hoteleira
Publication . Monteiro, Catarina José; Barroso, Célia Maria Ramos Serra Reis; Martins , Rui Alberto de Freitas
A evolução tecnológica tem transformado profundamente o setor do turismo, especialmente com a introdução de tecnologias emergentes como a inteligência artificial e robótica em contextos de hotelaria. Em Portugal, observa-se que a adoção desta tecnologia é, ainda reduzida e concentrada em poucos estabelecimentos, tal como se verifica em outros países do continente europeu. O cenário atual revela a necessidade de os gerentes hoteleiros e académicos da área compreenderem o impacto que a adoção de robôs pode ter no comportamento dos turistas para determinar as tendências futuras e, consequentemente, entender se existe a necessidade de aplicação ou não. Este estudo procura perceber como os robôs de serviço são percecionados no setor hoteleiro português, analisando a influência das emoções nas avaliações cognitivas e comportamentais dos turistas, e de que forma isso afeta a perceção global da experiência, a satisfação e a fidelização à marca. Com recuso a uma metodologia mista e com base em estudos de casos, foi realizado um inquérito à população geral e aplicado um inquérito a funcionários de dois hotéis com abordagens distintas ao uso da robótica, complementados por entrevistas semiestruturadas. Os resultados quantitativos revelaram correlações positivas entre emoções positivas, perceções de facilidade de uso e eficácia dos robôs. A variável idade, embora destacada na literatura como fator relevante, não revelou relevância estatística neste estudo. A análise qualitativa reforçou as evidências empíricas, apontando para uma valorização simbólica dos robôs enquanto elementos funcionais e inovadores. A adoção desta tecnologia, embora com potencial, enfrenta, também, desafios contextuais, técnicos e culturais, tornando necessária uma implementação cuidadosa, que promova o equilíbrio entre automatização e hospitalidade humana.