Search Results for author: Duc Thien Nguyen

Found 8 papers, 1 papers with code

Multilinear Kernel Regression and Imputation via Manifold Learning

no code implementations6 Feb 2024 Duc Thien Nguyen, Konstantinos Slavakis

This paper introduces a novel nonparametric framework for data imputation, coined multilinear kernel regression and imputation via the manifold assumption (MultiL-KRIM).

Dimensionality Reduction Imputation +1

Multi-Linear Kernel Regression and Imputation in Data Manifolds

no code implementations6 Apr 2023 Duc Thien Nguyen, Konstantinos Slavakis

This paper introduces an efficient multi-linear nonparametric (kernel-based) approximation framework for data regression and imputation, and its application to dynamic magnetic-resonance imaging (dMRI).

Dimensionality Reduction Imputation +1

Fast Temporal Wavelet Graph Neural Networks

1 code implementation17 Feb 2023 Duc Thien Nguyen, Manh Duc Tuan Nguyen, Truong Son Hy, Risi Kondor

To facilitate reliable and timely forecast for the human brain and traffic networks, we propose the Fast Temporal Wavelet Graph Neural Networks (FTWGNN) that is both time- and memory-efficient for learning tasks on timeseries data with the underlying graph structure, thanks to the theories of multiresolution analysis and wavelet theory on discrete spaces.

Neural-Progressive Hedging: Enforcing Constraints in Reinforcement Learning with Stochastic Programming

no code implementations27 Feb 2022 Supriyo Ghosh, Laura Wynter, Shiau Hong Lim, Duc Thien Nguyen

We propose a framework, called neural-progressive hedging (NP), that leverages stochastic programming during the online phase of executing a reinforcement learning (RL) policy.

Portfolio Optimization reinforcement-learning +1

Probabilistic Inference for Learning from Untrusted Sources

no code implementations15 Jan 2021 Duc Thien Nguyen, Shiau Hoong Lim, Laura Wynter, Desmond Cai

Federated learning brings potential benefits of faster learning, better solutions, and a greater propensity to transfer when heterogeneous data from different parties increases diversity.

Bayesian Inference Collaborative Filtering +1

Variational Bayesian Inference for Crowdsourcing Predictions

no code implementations1 Jun 2020 Desmond Cai, Duc Thien Nguyen, Shiau Hong Lim, Laura Wynter

Crowdsourcing has emerged as an effective means for performing a number of machine learning tasks such as annotation and labelling of images and other data sets.

Bayesian Inference

Credit Assignment For Collective Multiagent RL With Global Rewards

no code implementations NeurIPS 2018 Duc Thien Nguyen, Akshat Kumar, Hoong Chuin Lau

Scaling decision theoretic planning to large multiagent systems is challenging due to uncertainty and partial observability in the environment.

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