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  1. No Access

    Article

    Augmented reality situated visualization in decision-making

    Decision-making processes and decision support systems (DSS) have been improved by a variety of methods originated from several scientific fields, such as information science and artificial intelligence (AI). ...

    Nuno Cid Martins, Bernardo Marques, João Alves in Multimedia Tools and Applications (2022)

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    Chapter

    Convolutional Neural Networks Analysis Using Concentric-Rings Interactive Visualization

    The goal of this paper is to present the interactive web visualization technique DeepRings. The technique has a radial design, using concentric rings to represent the layers of a deep learning model, where eac...

    João Alves, Tiago Araújo in Integrating Artificial Intelligence and Vi… (2022)

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    Chapter and Conference Paper

    Customer Acceptance of Shop**-Assistant Chatbots

    Due to the increased use of chat applications, it is expected that consumer buying behavior will change. Chatbots have been identified by companies as being an excellent opportunity to better exploit social ne...

    Tiago Araújo, Beatriz Casais in Marketing and Smart Technologies (2020)

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    Article

    Learned and handcrafted features for early-stage laryngeal SCC diagnosis

    Squamous cell carcinoma (SCC) is the most common and malignant laryngeal cancer. An early-stage diagnosis is of crucial importance to lower patient mortality and preserve both the laryngeal anatomy and vocal-f...

    Tiago Araújo, Cristina P. Santos in Medical & Biological Engineering & Computi… (2019)

  5. No Access

    Chapter and Conference Paper

    A Comparison of Genetic Algorithms and Particle Swarm Optimization to Estimate Cluster-Based Kriging Parameters

    Kriging is one of the most used spatial estimation methods in real-...

    Carlos Yasojima, Tiago Araújo, Bianchi Meiguins in Progress in Artificial Intelligence (2019)

  6. Chapter and Conference Paper

    Aspects of Voice Interaction on a Mobile Augmented Reality Application

    Mobile Augmented Reality has become more popular mainly because computational resources available in mobile devices, and in the enhanced view of real world that can be seen by the user. The interaction becomes...

    Tiago Araújo, Carlos Santos, Brunelli Miranda in Virtual, Augmented and Mixed Reality (2016)

  7. Chapter and Conference Paper

    Evaluation of Information Visualization Interaction Techniques Using Gestures and Widgets in 3D Environments

    This paper presents the results of usability evaluation of an Information Visualization tool with touchless gestural commands. The tool has well-known visualizations tasks implemented in itself, allowing users...

    Brunelli Miranda, Carlos Santos, Nikolas Carneiro in Virtual, Augmented and Mixed Reality (2016)

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    Chapter and Conference Paper

    Generic Biometry Algorithm Based on Signal Morphology Information: Application in the Electrocardiogram Signal

    This work presents the development, test, and implementation of a new biometric identification procedure based on electrocardiogram (ECG) signal morphology. ECG data were collected from 63 subjects during two ...

    Tiago Araújo, Neuza Nunes, Hugo Gamboa in Pattern Recognition Applications and Metho… (2015)

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    Chapter and Conference Paper

    Time Series Clustering Algorithm for Two-Modes Cyclic Biosignals

    In this study, an automatic algorithm which computes a meanwave is introduced. The meanwave is produced by averaging all cycles of a cyclic signal, sample by sample. With that information, the signal’s morphology...

    Neuza Nunes, Tiago Araújo, Hugo Gamboa in Biomedical Engineering Systems and Technologies (2013)

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    Article

    Low-level laser therapy (LLLT; 780 nm) acts differently on mRNA expression of anti- and pro-inflammatory mediators in an experimental model of collagenase-induced tendinitis in rat

    Low-level laser therapy (LLLT) has been found to produce anti-inflammatory effects in a variety of disorders. Tendinopathies are directly related to unbalance in expression of pro- and anti-inflammatory cytoki...

    Débora Pires, Murilo Xavier, Tiago Araújo in Lasers in Medical Science (2011)