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Publications

Publications by Luís Paulo Reis

2021

Computer Supported Qualitative Research

Authors
Costa, AP; Reis, LP; Moreira, A; Longo, L; Bryda, G;

Publication
Advances in Intelligent Systems and Computing

Abstract

2023

Investigating the reviewer assignment problem: A systematic literature review

Authors
Ribeiro, AC; Sizo, A; Reis, LP;

Publication
JOURNAL OF INFORMATION SCIENCE

Abstract
The assignment of appropriate reviewers to academic articles, known as the reviewer assignment problem (RAP), has become a crucial issue in academia. While there has been much research on RAP, there has not yet been a systematic literature review (SLR) examining the various approaches, techniques, algorithms and discoveries related to this topic. To conduct the SLR, we identified and evaluated relevant articles from four databases using defined inclusion and exclusion criteria. We analysed the selected articles and extracted information, and assessed their quality. Our review identified 67 articles on RAP published in conferences and journals up to mid-2022. As one of the main challenges in RAP is acquiring open data, we have studied the data sources used by researchers and found that most studies use real data from conferences, bibliographic databases and online academic search engines. RAP is divided into two main phases: (1) finding/recommending expert reviewers and (2) assigning reviewers to submitted manuscripts. In Phase 1, we have identified that decision support systems, recommendation systems, and machine learning-oriented approaches are more commonly used due to better results. In Phase 2, heuristics and metaheuristics are the approaches that present better results and are consequently more commonly used by researchers. Based on the analysed studies, we have identified potential areas for future research that could lead to improved results. Specifically, we suggest exploring the application of deep neural networks for calculating the degree of correspondence and using the Boolean satisfiability problem to optimise the attribution process.

2023

FC Portugal: RoboCup 2022 3D Simulation League and Technical Challenge Champions

Authors
Abreu, M; Kasaei, M; Reis, LP; Lau, N;

Publication
ROBOCUP 2022

Abstract
FC Portugal, a team from the universities of Porto and Aveiro, won the main competition of the 2022 RoboCup 3D Simulation League, with 17 wins, 1 tie and no losses. During the course of the competition, the team scored 84 goals while conceding only 2. FC Portugal also won the 2022 RoboCup 3D Simulation League Technical Challenge, accumulating the maximum amount of points by ending first in its both events: the Free/Scientific Challenge, and the Fat Proxy Challenge. The team presented in this year's competition was rebuilt from the ground up since the last RoboCup. No previous code was used or adapted, with the exception of the 6D pose estimation algorithm, and the get-up behaviors, which were re-optimized. This paper describes the team's new architecture and development approach. Key strategy elements include team coordination, role management, formation, communication, skill management and path planning. New lower-level skills were based on a deterministic analytic model and a shallow neural network that learned residual dynamics through reinforcement learning. This process, together with an overlapped learning approach, improved seamless transitions, learning time, and the behavior in terms of efficiency and stability. In comparison with the previous team, the omnidirectional walk is more stable and went from 0.70m/s to 0.90 m/s, the long kick from 15m to 19m, and the new close-control dribble reaches up to 1.41 m/s.

2022

FC Portugal: RoboCup 2022 3D Simulation League and Technical Challenge Champions

Authors
Abreu, M; Kasaei, MM; Reis, LP; Lau, N;

Publication
RoboCup 2022: - Robot World Cup XXV [Bangkok, Thailand, July 11-17, 2022].

Abstract

2022

Forecasting Omicron Variant of Covid-19 with ANN Model in European Countries - Number of Cases, Deaths, and ICU Patients

Authors
Carvalho, K; Reis, LP; Teixeira, JP;

Publication
OPTIMIZATION, LEARNING ALGORITHMS AND APPLICATIONS, OL2A 2022

Abstract
Accurate predictions of time series are increasingly required to support judgments in a variety of decisions. Several predictive models are available to support these predictions, depending on how each field offers a data variety with varied behavior. The use of artificial neural networks (ANN) at the beginning of the COVID-19 pandemic was significant since the tool may offer forecasting data for various conditions and hence assist in governing critical choices. In this context, this paper describes a system for predicting the daily number of cases, fatalities, and Intensive Care Unit (ICU) patients for the next 28 days in five European countries: Portugal, the United Kingdom, France, Italy, and Germany. The database selection is based on comparable mitigation processes to analyze the impact of safety procedure flexibilization with the most recent numbers of COVID-19. Additionally, it is intended to check the algorithm's adaptability to different variants throughout time. The network's input data has been normalized to account for the size of the countries in the study and smoothed by seven days. The mean absolute error (MAE) was employed as a comparing criterion of two datasets, one with data from the beginning of the pandemic and another with data from the last year, since all variables (cases, deaths, and ICU patients) may be tendentious in percentage analysis. The best architecture produced a general MAE prediction for the 28 days ahead of 256,53 daily cases, 0,59 daily deaths, and 1,63 ICU patients, all numbers normalized by million people.

2023

Using Deep Reinforcement Learning for Navigation in Simulated Hallways

Authors
Leão, G; Almeida, F; Trigo, E; Ferreira, H; Sousa, A; Reis, LP;

Publication
IEEE International Conference on Autonomous Robot Systems and Competitions, ICARSC 2023, Tomar, Portugal, April 26-27, 2023

Abstract

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