Search Results for author: Cuong Nguyen

Found 13 papers, 6 papers with code

Uncertainty in Model-Agnostic Meta-Learning using Variational Inference

1 code implementation27 Jul 2019 Cuong Nguyen, Thanh-Toan Do, Gustavo Carneiro

We introduce a new, rigorously-formulated Bayesian meta-learning algorithm that learns a probability distribution of model parameter prior for few-shot learning.

BIG-bench Machine Learning Classification +5

Instance-Dependent Noisy Label Learning via Graphical Modelling

1 code implementation2 Sep 2022 Arpit Garg, Cuong Nguyen, Rafael Felix, Thanh-Toan Do, Gustavo Carneiro

Noisy labels are unavoidable yet troublesome in the ecosystem of deep learning because models can easily overfit them.

Learning with noisy labels

Multi-omics Prediction from High-content Cellular Imaging with Deep Learning

1 code implementation15 Jun 2023 Rahil Mehrizi, Arash Mehrjou, Maryana Alegro, Yi Zhao, Benedetta Carbone, Carl Fishwick, Johanna Vappiani, Jing Bi, Siobhan Sanford, Hakan Keles, Marcus Bantscheff, Cuong Nguyen, Patrick Schwab

High-content cellular imaging, transcriptomics, and proteomics data provide rich and complementary views on the molecular layers of biology that influence cellular states and function.

Approximate Bayesian Computation for an Explicit-Duration Hidden Markov Model of COVID-19 Hospital Trajectories

1 code implementation28 Apr 2021 Gian Marco Visani, Alexandra Hope Lee, Cuong Nguyen, David M. Kent, John B. Wong, Joshua T. Cohen, Michael C. Hughes

We develop an Approximate Bayesian Computation approach that draws samples from the posterior distribution over the model's transition and duration parameters given aggregate counts from a specific location, thus adapting the model to a region or individual hospital site of interest.

Unsupervised Task Design to Meta-Train Medical Image Classifiers

no code implementations17 Jul 2019 Gabriel Maicas, Cuong Nguyen, Farbod Motlagh, Jacinto C. Nascimento, Gustavo Carneiro

Meta-training has been empirically demonstrated to be the most effective pre-training method for few-shot learning of medical image classifiers (i. e., classifiers modeled with small training sets).

Classification Few-Shot Learning +1

Similarity of Classification Tasks

1 code implementation27 Jan 2021 Cuong Nguyen, Thanh-Toan Do, Gustavo Carneiro

Recent advances in meta-learning has led to remarkable performances on several few-shot learning benchmarks.

Classification Few-Shot Learning +1

Semi-supervised classification of radiology images with NoTeacher: A Teacher that is not Mean

no code implementations10 Aug 2021 Balagopal Unnikrishnan, Cuong Nguyen, Shafa Balaram, Chao Li, Chuan Sheng Foo, Pavitra Krishnaswamy

Specifically, we describe adaptations for scenarios with 2D and 3D inputs, uni and multi-label classification, and class distribution mismatch between labeled and unlabeled portions of the training data.

Classification Image Classification +1

Maximising the Utility of Validation Sets for Imbalanced Noisy-label Meta-learning

no code implementations17 Aug 2022 Dung Anh Hoang, Cuong Nguyen, Belagiannis Vasileios, Gustavo Carneiro

In this paper, we analyse the meta-learning algorithm and propose new criteria to characterise the utility of the validation set, based on: 1) the informativeness of the validation set; 2) the class distribution balance of the set; and 3) the correctness of the labels of the set.

Informativeness Meta-Learning

Task Weighting in Meta-learning with Trajectory Optimisation

no code implementations4 Jan 2023 Cuong Nguyen, Thanh-Toan Do, Gustavo Carneiro

Developing meta-learning algorithms that are un-biased toward a subset of training tasks often requires hand-designed criteria to weight tasks, potentially resulting in sub-optimal solutions.

Few-Shot Learning

Towards the Identifiability in Noisy Label Learning: A Multinomial Mixture Approach

no code implementations4 Jan 2023 Cuong Nguyen, Thanh-Toan Do, Gustavo Carneiro

To meet this requirement without relying on additional $2C - 2$ manual annotations per instance, we propose a method that automatically generates additional noisy labels by estimating the noisy label distribution based on nearest neighbours.

PASS: Peer-Agreement based Sample Selection for training with Noisy Labels

no code implementations20 Mar 2023 Arpit Garg, Cuong Nguyen, Rafael Felix, Thanh-Toan Do, Gustavo Carneiro

To address this limitation, we propose a novel peer-agreement based sample selection (PASS).

Noisy-label Learning with Sample Selection based on Noise Rate Estimate

no code implementations31 May 2023 Arpit Garg, Cuong Nguyen, Rafael Felix, Thanh-Toan Do, Gustavo Carneiro

Even though the estimated noise rate from the training set appears to be a natural signal to be used in the definition of this curriculum, previous approaches generally rely on arbitrary thresholds or pre-defined selection functions to the best of our knowledge.

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