86 documents found, page 1 of 9
Applications of brain wave classification for controlling an intelligent wheelc...
Avelar, Maria Carolina; Almeida, Patricia; Faria, Brígida Mónica; Reis, Luís PauloThe independence and autonomy of both elderly and disabled people have been a growing concern in today’s society. Therefore, wheelchairs have proven to be fundamental for the movement of these people with physical disabilities in the lower limbs, paralysis, or other type of restrictive diseases. Various adapted sensors can be employed in order to facilitate the wheelchair’s driving experience. This work develop...
Emotion classification based on single electrode brain data: applications for a...
Rodrigues, Duarte; Reis, Luís Paulo; Faria, Brígida Mónica; Faria, Brígida MónicaThis research case focused on the development of an emotion classification system aimed to be integrated in projects committed to improve assistive technologies. An experimental protocol was designed to acquire an electroencephalogram (EEG) signal that translated a certain emotional state. To trigger this stimulus, a set of clips were retrieved from an extensive database of pre-labeled videos. Then, the signals...
Hand gestures recognition for an intelligent wheelchair steering command
Almeida, Patrícia; Faria, Brígida Mónica; Reis, Luís PauloThe independence and autonomy of both elderly and dis abled people have been a growing concern of today’s society. Conse quently, the increase in life expectancy combined with the ageing of the population has created the ideal conditions for the introduction of Intelli gent Wheelchairs (IWs). For this purpose, several adapted sensors should be used to optimize the control of a wheelchair. During this work, the ...
Economic and food safety: optimized inspection routes generation
Barros, Telmo; Oliveira, Alexandra; Cardoso, Henrique Lopes; Reis, Luís Paulo; Caldeira, Cristina; Machado, João PedroData-driven decision support systems rely on increasing amounts of information that needs to be converted into actionable knowledge in business intelligence processes. The latter have been applied to diverse business areas, including governmental organizations, where they can be used effectively. The Portuguese Food and Economic Safety Authority (ASAE) is one example of such organizations. Over its years of ope...
An assessment classification of formative evaluation tools and digital tools
Paiva, Sandra; Oliveira, Lia Raquel; Reis, Luís PauloThe theme “An assessment classification of formative assessment tools and digital tools” represents the meeting between a theme with a history in education - formative assessment, and another very current theme - the use of digital tools with an emphasis on commonly called apps (digital apps). The formative evaluation presents numerous scientific evidences of its potential in supporting students and teachers in...
Assessing daily activities using a PPG sensor embedded in a wristband-type acti...
Oliveira, Alexandra; Aguiar, Joyce; Silva, Eliana; Faria, Brígida Mónica; Gonçalves, Helena; Teófilo, Luís; Gonçalves, Joaquim; Carvalho, VictorDue to the technological evolution on wearable devices, biosignals, such as inter-cardiac beat interval (RR) time series, are being captured in a noncontrolled environment. These RR signals, derived from photoplethysmography (PPG), enable health status assessment in a more continuous, non-invasive, nonobstructive way, and fully integrated into the individual’s daily activity. However PPG is vulnerable to motion...
Biometrics and quality of life of lymphoma patients: A longitudinal mixed‐model...
Oliveira, Alexandra; Silva, Eliana; Aguiar, Joyce; Faria, Brigida Monica; Reis, Luís Paulo; Cardoso, Henrique; Gonçalves, JoaquimKnowledge Engineering has become essential in the fields of Medical and Health Care with emphasis for helping citizens to improve their health and quality of life. This includes individual methods and techniques in health‐related knowledge acquisition and representation and their application in the construction of intelligent systems capable of using the acquired information to improve the patients' health and/...
Interactive inspection routes application for economic and food safety
Barros, Telmo; Santos, Tiago; Oliveira, Alexandra; Cardoso, Henrique Lopes; Reis, Luís Paulo; Oliveira, AlexandraThis paper describes an application aimed at improving the current state of enforcement in the areas of food safety and economic activities in Portugal. More specifically, the application focuses on a flexible and interactive approach to generate inspection routes, to be followed by surveillance brigades with the aim of verifying Economic Operators’ compliance to national and European legislation on economic an...
Generation and optimization of inspection routes for economic and food safety
Barros, Telmo; Oliveira, Alexandra; Cardoso, Henrique Lopes; Reis, Luís Paulo; Caldeira, Cristina; Machado, João Pedro; Oliveira, AlexandraArtificial intelligence techniques have been applied to diverse business and governmental areas, in order to take advantage of the huge amount of information that is generated within specific organizations or institutions. Business intelligence can be seen as the process of converting such information into actionable knowledge, which is the basis for data-driven decision making. With this in mind, this work is ...
Information system for monitoring and assessing stress among medical students
Silva, Eliana; Aguiar, Joyce; Reis, Luís Paulo; Oliveira e Sá, Jorge; Gonçalves, Joaquim; Carvalho, VictorThe severe or prolonged exposure to stress-inducing factors in occupational and academic settings is a growing concern. The literature describes several potentially stressful moments experienced by medical students throughout the course, affecting cognitive functioning and learning. In this paper, we introduce the EUSTRESS Solution, that aims to create an Information System to monitor and assess, continuously a...