1 code implementation • 22 Mar 2024 • André Correia, Luís A. Alexandre
We train our method on AIST++ and PhantomDance data sets to teach a robotic arm to dance, but our method can be applied to a full humanoid robot.
no code implementations • 21 Sep 2023 • Seyed Jalaleddin Mousavirad, Luís A. Alexandre
Energy consumption is a fundamental concern in mobile application development, bearing substantial significance for both developers and end-users.
no code implementations • 16 Jun 2023 • Seyed Jalaleddin Mousavirad, Luís A. Alexandre
Energy consumption plays a vital role in mobile App development for developers and end-users, and it is considered one of the most crucial factors for purchasing a smartphone.
1 code implementation • 29 Mar 2023 • Vasco Lopes, Bruno Degardin, Luís A. Alexandre
We found that only a subset of the operation pool is required to generate architectures close to the upper-bound of the performance range.
no code implementations • 20 Mar 2023 • André Correia, Luís A. Alexandre
This paper provides a survey of demonstration learning, where we formally introduce the demonstration problem along with its main challenges and provide a comprehensive overview of the process of learning from demonstrations from the creation of the demonstration data set, to learning methods from demonstrations, and optimization by combining demonstration learning with different machine learning methods.
no code implementations • 21 Sep 2022 • André Correia, Luís A. Alexandre
Our method outperforms the baselines in eight out of ten tasks of varied horizons and reward frequencies without prior task knowledge, showing the advantages of the hierarchical model approach for learning from demonstrations using a sequence model.
1 code implementation • 9 Sep 2022 • Seyed Jalaleddin Mousavirad, Luís A. Alexandre
Also, two Pareto-based methods, including a non-dominated sorting genetic algorithm (NSGA-II) and a reference-point-based NSGA-II (NSGA-III) are used for the embedding scheme, and two Pareto-based algorithms, EnNSGAII and EnNSGAIII, are presented.
no code implementations • 22 Jul 2022 • Vasco Lopes, Miguel Santos, Bruno Degardin, Luís A. Alexandre
GEA guides the evolution by exploring the search space by generating and evaluating several architectures in each generation at initialisation stage using a zero-proxy estimator, where only the highest-scoring architecture is trained and kept for the next generation.
Ranked #16 on Neural Architecture Search on NAS-Bench-201, CIFAR-100
no code implementations • 12 Jul 2022 • António J. Abreu, Luís A. Alexandre, João A. Santos, Filippo Basso
We used images collected by a drone-mounted multispectral sensor to achieve this, creating our LudVision data set.
1 code implementation • 10 Mar 2022 • Vasco Lopes, Luís A. Alexandre
In this paper, we propose LCMNAS, a method that pushes NAS to less constrained search spaces by performing macro-search without relying on pre-defined heuristics or bounded search spaces.
no code implementations • 30 Jan 2022 • André Correia, Luís A. Alexandre
This paper presents a framework for learning visual representations from unlabeled video demonstrations captured from multiple viewpoints.
no code implementations • 17 Nov 2021 • Nuno Pereira, Luís A. Alexandre
We present a new method to estimate the 6D pose of objects that improves upon the accuracy of current proposals and can still be used in real-time.
1 code implementation • 28 Oct 2021 • Vasco Lopes, Miguel Santos, Bruno Degardin, Luís A. Alexandre
The rationale behind G-EA, is to explore the search space by generating and evaluating several architectures in each generation at initialization stage using a zero-proxy estimator, where only the highest-scoring network is trained and kept for the next generation.
no code implementations • 16 Feb 2021 • Vasco Lopes, António Gaspar, Luís A. Alexandre, João Cordeiro
Sentiment analysis is a research topic focused on analysing data to extract information related to the sentiment that it causes.
Ranked #1 on Multimodal Sentiment Analysis on B-T4SA
2 code implementations • 16 Feb 2021 • Vasco Lopes, Saeid Alirezazadeh, Luís A. Alexandre
In this paper, we propose EPE-NAS, an efficient performance estimation strategy, that mitigates the problem of evaluating networks, by scoring untrained networks and creating a correlation with their trained performance.
Ranked #26 on Neural Architecture Search on NAS-Bench-201, CIFAR-100
no code implementations • 7 Dec 2020 • Saeid Alirezazadeh, Luís A. Alexandre
Load balancing allocation and scheduling ensures that the time between when the first node completes its scheduled tasks and when all other nodes complete their scheduled tasks is as short as possible.
Robotics
1 code implementation • 3 Sep 2020 • Vasco Lopes, Luís A. Alexandre
The dominant approach for surface defect detection is the use of hand-crafted feature-based methods.
Ranked #1 on Defect Detection on DAGM2007
no code implementations • 31 Jul 2020 • Vasco Lopes, Luís A. Alexandre
Neural Architecture Search has achieved state-of-the-art performance in a variety of tasks, out-performing human-designed networks.
1 code implementation • 18 Nov 2019 • Nuno Pereira, Luís A. Alexandre
MaskedFusion is a framework to estimate the 6D pose of objects using RGB-D data, with an architecture that leverages multiple sub-tasks in a pipeline to achieve accurate 6D poses.
Ranked #2 on 6D Pose Estimation using RGBD on YCB-Video
no code implementations • 30 Sep 2018 • Vasco Lopes, Luís A. Alexandre
Blockchain technology is growing everyday at a fast-passed rhythm and it's possible to integrate it with many systems, namely Robotics with AI services.
no code implementations • 22 Feb 2018 • Abel S. Zacarias, Luís A. Alexandre
Lifelong learning aims to develop machine learning systems that can learn new tasks while preserving the performance on previous learned tasks.
no code implementations • 7 Dec 2017 • Ricardo Gamelas Sousa, Jorge M. Santos, Luís M. Silva, Luís A. Alexandre, Tiago Esteves, Sara Rocha, Paulo Monjardino, Joaquim Marques de Sá, Francisco Figueiredo, Pedro Quelhas
In this paper we present a system for the detection of immunogold particles and a Transfer Learning (TL) framework for the recognition of these immunogold particles.
no code implementations • 6 Dec 2017 • Ricardo Gamelas Sousa, Luís A. Alexandre, Jorge M. Santos, Luís M. Silva, Joaquim Marques de Sá
As it is natural in a fast evolving area, a wide variety of TL methods, settings and nomenclature have been proposed so far.