111 documents found, page 1 of 12
Characterization of individual mobility for non-routine scenarios from Crowd Se...
Gomes, Rui Jorge Reis; Cunha, Inês; Simões, João; Alves, Ana; Ribeiro , AnabelaDemand for leisure activities has increased due to some reasons such as increasing wealth, ageing populations and changing lifestyles, however, the efficiency of public transport system relies on solid demand levels and well-established mobility patterns and, so, providing quality public transportation is extremely expensive in low, variable and unpredictable demand scenarios, as it is the case of out-of-routin...
Automatic POI Matching using an Outlier Detection Based Approach
Gomes, Rui Jorge Reis; Almeida, Alexandre; Alves, AnaPoints of Interest (POI) are widely used in many applications nowadays mainly due to the increasing amount of related data available online, notably from volunteered geographic information (VGI) sources. Being able to connect these data from different sources is useful for many things like validating, cor- recting and also removing duplicated data in a database. However, there is no standard way to identify the...
Urban mobility: Mobile crowdsensing applications
Simões, João; Gomes, Rui Jorge Reis; Alves, Ana; Bernardino , JorgeMobility has become one of the most difficult challenges that cities must face. More than half of world’s population resides in urban areas and with the continuously growing population it is imperative that cities use their resources more efficiently. Obtaining and gathering data from different sources can be extremely important to support new solutions that will help building a better mobility for the citizens...
Nursing interventions promoting the safety of adolescents at risk of suicidal b...
Coimbra, Helena; Correia, Raquel; Alves, Ana; Costa, Susana; Moutinho, Lídia; Robalo Nunes, InêsIntroductionAdolescence is a stage of human development characterized by changes in multiple dimensions of life. These changes can act as significant stressors for adolescents, influencing their mental health. Suicidal behaviors are an escalating concern, posing a threat to adolescent safety and presenting challenges for nurses across various healthcare settings. ObjectiveTo identify the available knowledge on ...
Multi-Class Intrusion Detection in Internet of Vehicles: Optimizing Machine Lea...
Palma, Ágata; Antunes, Mário; Bernardino, Jorge; Alves, AnaThe Internet of Vehicles (IoV) presents complex cybersecurity challenges, particularly against Denial-of-Service (DoS) and spoofing attacks targeting the Controller Area Network (CAN) bus. This study leverages the CICIoV2024 dataset, comprising six distinct classes of benign traffic and various types of attacks, to evaluate advanced machine learning techniques for instrusion detection systems (IDS). The models ...
Monoterpene hydroxy lactones isolated from Thalassiosira sp. microalga and thei...
Morais, Alcina M. M. B.; Kumla, Decha; Martins, Valter F. R.; Alves, Ana; Gales, Luis; Silva, Artur M. S.; Costa, Paulo M.; Mistry, SharadTwo monoterpenoid lactones, loliolide (1) and epi-loliolide (2), were isolated from the crude dichloromethane extract of a microalga, Thalassiosira sp.). The structures of loliolide (1) and epi-loliolide (2) were elucidated by 1D and 2D NMR analysis, as well as a comparison of their 1H or/and 13C NMR data with those reported in the literature. In the case of loliolide (1), the absolute configurations of its ste...
MultiWOZ-PT: A Task-oriented Dialogue Dataset in Portuguese
Ferreira, Patrícia; Pais, Francisco; Silva, Catarina; Alves, Ana; Gonçalo Oliveira, HugoDespite the language widespread usage, publicly available and annotated Portuguese dialogue corpora are scarce. This poses a significant challenge in the development of effective dialogue systems that communicate in Portuguese. Having this in mind, we present MultiWOZ-PT, a new task-oriented dialogue dataset that results from the manual translation of dialogues in the MultiWOZ dataset to the European variety of...
How the European Union renewable energy directive impacts the global energy ind...
Alves, AnaThis thesis investigates the impact of the European Union's Renewable Energy Directive (RED) on global energy markets, assessing investor response and its implications for the energy industry. The study analyses cumulative abnormal returns of 409 firms, including fossil fuel and renewable energy sectors across Europe, North America, and Asia. An event study methodology is employed to capture market reactions fr...
Lecturing reference guide: BIM teaching approach
Nývlt, Vladimír; Vytlačil, Dalibor; Demel, Jiří; Kaiser, Jiří; Švamberková, Lucie; Prušková, Kristýna; Dědič, Martin; Veselka, Jakub; Šinkner, RobertNo abstract available.
Guia de referência para professores: abordagem de ensino aprendizagem da metodo...
Nývlt, Vladimír; Vytlačil, Dalibor; Demel, Jiří; Kaiser, Jiří; Švamberková, Lucie; Prušková, Kristýna; Dědič, Martin; Veselka, Jakub; Šinkner, RobertSem resumo disponível.