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  1. No Access

    Chapter and Conference Paper

    Time Series Imputation in Faulty Systems

    Time series data has a crucial role in business. It reveals temporal trends and patterns, making it possible for decision-makers to make informed decisions and mitigate problems even before they happen. The ex...

    Ana Almeida, Susana Brás, Susana Sargento in Pattern Recognition and Image Analysis (2023)

  2. No Access

    Chapter and Conference Paper

    Clustering ECG Time Series for the Quantification of Physiological Reactions to Emotional Stimuli

    Emotion recognition systems aim to develop tools that help in the identification of our emotions, which are related to learning, decision-making and treatment and diagnosis in mental health contexts. The resea...

    Beatriz Henriques, Susana Brás, Sónia Gouveia in Pattern Recognition and Image Analysis (2023)

  3. No Access

    Chapter and Conference Paper

    A Preliminary Study on Electrocardiogram Response During Pain Induction

    Pain is a complex phenomenon that arises from the interaction of multiple neuroanatomic and neurochemical systems with several cognitive and affective processes. Nowadays, the assessment of pain intensity stil...

    Ana Bento, Susana Brás, Raquel Sebastião in Computational Science and Its Applications… (2022)

  4. No Access

    Chapter and Conference Paper

    Characterization of Emotions Through Facial Electromyogram Signals

    Emotions are a high interesting subject for the development of areas such as health and education. As a result, methods that allow their understanding, characterization, and classification have been under the ...

    Lara Pereira, Susana Brás, Raquel Sebastião in Pattern Recognition and Image Analysis (2022)

  5. No Access

    Chapter and Conference Paper

    Exploring Alterations in Electrocardiogram During the Postoperative Pain

    The assessment of postoperative pain after a surgical procedure is a critical step to guarantee a suitable analgesic control of pain, and currently, it is based on the self-reports of the patients. However, th...

    Daniela Pais, Susana Brás, Raquel Sebastião in Pattern Recognition and Image Analysis (2022)

  6. No Access

    Chapter and Conference Paper

    Using Bus Tracking Data to Detect Potential Hazard Driving Zones

    Urban mobility studies are critical to acquiring insights about traffic management, urban mobility evolution, planning of urban spaces, and many other applications. However, the study and mitigation of recurre...

    Ana Almeida, Susana Brás, Susana Sargento in Pattern Recognition and Image Analysis (2022)

  7. No Access

    Chapter and Conference Paper

    Heartbeat Selection Based on Outlier Removal

    The relevance of the Electrocardiogram (ECG) in clinical settings as well as in biometric identification systems prompted the necessity to develop automatic methodologies to remove irregular and noisy heartbea...

    Miguel Carvalho, Susana Brás in Pattern Recognition and Image Analysis (2022)

  8. No Access

    Chapter and Conference Paper

    An Information-Theoretical Method for Emotion Classification

    Identifying the emotion that someone is feeling will allow to improve the experience of the person interaction with environments, devices, and contents. Our body responds to events around us, by emotional res...

    Susana Brás, João M. Carvalho, Filipa Barros in XV Mediterranean Conference on Medical and… (2020)

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    Chapter and Conference Paper

    Enabling Multimodal Emotionally-Aware Ecosystems Through a W3C-Aligned Generic Interaction Modality

    Emotions play a key role in our life experiences. In interactive systems, the user’s emotional state can be relevant to provide increased levels of adaptation to the user, but can also be paramount in scenari...

    David Ferreira, Nuno Almeida, Susana Brás in Wireless Mobile Communication and Healthca… (2020)

  10. No Access

    Chapter and Conference Paper

    Compression-Based Classification of ECG Using First-Order Derivatives

    Due to its characteristics, there is a trend in biometrics to use the ECG signal for personal identification. There are different applications for this, namely, adapting entertainment systems to personal setti...

    João M. Carvalho, Susana Brás in Intelligent Technologies for Interactive E… (2019)

  11. No Access

    Chapter and Conference Paper

    New Insights in Echocardiography Based Left-Ventricle Dynamics Assessment

    Cardiovascular diseases affect a high percentage of people worldwide, being currently a major clinical concern. Echocardiograms are useful exams that allow monitoring the heart dynamics. However, their analysi...

    Susana Brás, Augusto Silva, José Ribeiro in Bioinformatics and Biomedical Engineering (2015)