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Publicações

2023

A method for selecting processes for automation with AHP and TOPSIS

Autores
Costa, DS; Mamede, HS;

Publicação
HELIYON

Abstract
Organizations are more frequently turning towards robotic process automation (RPA) as a solu-tion for employees to focus on higher complexity and more valuable tasks while delegating routine, monotonous and rule-based tasks to their digital colleagues. These software robots can handle various rule-based, digital, repetitive tasks. However, currently available process identi-fication methods must be qualified to select suitable automation processes accurately. Wrong process selection and failed attempts are often the origin of process automation's bad reputation within organizations and often result in the avoidance of this technology. As a result, in this research, a method for selecting processes for automation combining two multi-criteria decision -making techniques, 'Analytic Hierarchy Process (AHP) and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), will be proposed, demonstrated, and evaluated. This study follows the Design Science Research Methodology (DSRM) and applies the proposed method for selecting processes for automation to a real-life scenario. The result will be a method to support the proper selection of business processes for automation, increasing the success of implementing RPA tools in an organization.

2023

Detection of Intermittent Claudication from Smartphone Inertial Data in Community Walks Using Machine Learning Classifiers

Autores
Pinto, B; Correia, MV; Paredes, H; Silva, I;

Publicação
SENSORS

Abstract
Peripheral arterial disease (PAD) causes blockage of the arteries, altering the blood flow to the lower limbs. This blockage can cause the individual with PAD to feel severe pain in the lower limbs. The main contribution of this research is the discovery of a solution that allows the automatic detection of the onset of claudication based on data analysis from patients' smartphones. For the data-collection procedure, 40 patients were asked to walk with a smartphone on a thirty-meter path, back and forth, for six minutes. Each patient conducted the test twice on two different days. Several machine learning models were compared to detect the onset of claudication on two different datasets. The results suggest that we can identify the onset of claudication using inertial sensors with a best case accuracy of 92.25% for the Extreme Gradient Boosting model.

2023

O habitar do ensinar e do aprender

Autores
Schlemmer, E;

Publicação

Abstract
O Grupo Internacional de Pesquisa Educação Digital (GPe-dU – UNISINOS/CAPES-CNPq)1 iniciou, em 2016, a pesquisa intitulada “A Cidade como Espaço de Aprendizagem: games e gamificação na constituição de Espaços de Convivência Híbridos, Multimodais, Pervasivos e Ubíquos para o desenvolvimento da Cidadania”, financiada pelo Edital Universal, na qual teve origem o We, Learning with the Cibricity – WLC. O evento foi construído a partir da necessidade da criação de um espaço-tempo comum de convivência e compartilhamento dos games e projetos gamificados desenvolvidos pelas crianças e adolescentes na cidade, bem como das práticas pedagógicas desenvolvidas pelos professores, realizadas nas escolas participantes do projeto, ao longo dos anos letivos em que o projeto se desenvolveu. Assim, o WLC foi realizado em 2016 seguido por quatro edições, até o ano de 2019, na modalidade presencial física. A pesquisa teve continuidade no projeto “A Cibricidade como Espaço de Aprendizagem: Pra´ticas pedago´gicas inovadoras para a promoc¸a~o da cidadania e do desenvolvimento social sustentável”, financiado pelo Edital “Anos finais do Ensino Fundamental: adolescências, qualidade e equidade na escola pública” da Fundação Carlos Chagas e Itaú Social, desenvolvido nos anos de 2019 a 2022. A articulação entre pesquisa, ensino (superior, pós-graduação e educação básica) e extensão (formação continuada de professores e a organização e realização do evento WLC) tomou tal dimensão, que fez surgir oportunidades de compartilhamento de projetos realizados também pelos professores, em um profícuo diálogo com pesquisadores, bem como a ampliação geográfica dos participantes, extrapolando as fronteiras nacionais. Essa história está sendo construída a partir das diferentes temáticas escolhidas e propostas em conexão com o que vivemos com o outro, sendo esse outro e entendido como tudo que faz parte da nossa ecologia.

2023

Simplified Markerless Stride Detection Pipeline (sMaSDP) for Surface EMG Segmentation

Autores
Castro Aguiar, R; Sam Jeeva Raj, EJ; Chakrabarty, S;

Publicação
Sensors

Abstract
To diagnose mobility impairments and select appropriate physiotherapy, gait assessment studies are often recommended. These studies are usually conducted in confined clinical settings, which may feel foreign to a subject and affect their motivation, coordination, and overall mobility. Conducting gait studies in unconstrained natural settings instead, such as the subject’s Activities of Daily Life (ADL), could provide a more accurate assessment. To appropriately diagnose gait deficiencies, muscle activity should be recorded in parallel with typical kinematic studies. To achieve this, Electromyography (EMG) and kinematic are collected synchronously. Our protocol sMaSDP introduces a simplified markerless gait event detection pipeline for the segmentation of EMG signals via Inertial Measurement Unit (IMU) data, based on a publicly available dataset. This methodology intends to provide a simple, detailed sequence of processing steps for gait event detection via IMU and EMG, and serves as tutorial for beginners in unconstrained gait assessment studies. In an unconstrained gait experiment, 10 healthy subjects walk through a course designed to mimic everyday walking, with their kinematic and EMG data recorded, for a total of 20 trials. Five different walking modalities, such as level walking, ramp up/down, and staircase up/down are included. By segmenting and filtering the data, we generate an algorithm that detects heel-strike events, using a single IMU, and isolates EMG activity of gait cycles. Applicable to different datasets, sMaSDP was tested in healthy gait and gait data of Parkinson’s Disease (PD) patients. Using sMaSDP, we extracted muscle activity in healthy walking and identified heel-strike events in PD patient data. The algorithm parameters, such as expected velocity and cadence, are adjustable and can further improve the detection accuracy, and our emphasis on the wearable technologies makes this solution ideal for ADL gait studies.

2023

Underwater measurements with UX robots; a new and available tool developed by UNEXUP

Autores
Zajzon, N; Topa, BA; Papp, RZ; Aaltonen, J; Almeida, JM; Almeida, C; Martins, A; Bodó, B; Henley, S; Pinto, MT; Zibret, G;

Publicação
EUROPEAN GEOSCIENCES UNION GENERAL ASSEMBLY 2023, EGU DIVISION ENERGY, RESOURCES & ENVIRONMENT, ERE

Abstract
The UNEXMIN (Horizon 2020) and UNEXUP (EIT RawMaterials) projects developed a novel technology to send robots and even autonomously deliver optical images, 3D maps and other georeferenced scientific data from flooded underground environments, like abandoned mines, caves or wells. The concept turned into a market ready solution in seven years, where the last few years of field trials of the development beautifully demonstrating the technology's premier capabilities. Here in this paper, we focus on the wide variety of environments, circumstances and measurements where the UNEXMIN technology can be the best solution or the only solution to deliver certain research or engineering data. These are obtained from both simple and complex environments like different mines and caves, small and large cavities, long and tight tunnels and shafts, different visibility conditions, even different densities of the liquid medium where UX robots operated.

2023

Linking Theory and Practice of Digital Libraries

Autores
Alonso, O; Cousijn, H; Silvello, G; Marrero, M; Teixeira Lopes, C; Marchesin, S;

Publicação
Lecture Notes in Computer Science

Abstract

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