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  1. 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)

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    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)

  3. 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)

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    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)

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    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)

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    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)