Search Results for author: Dung D. Le

Found 18 papers, 9 papers with code

A Framework for Controllable Multi-objective Learning with Annealed Stein Variational Hypernetworks

no code implementations7 Jun 2025 Minh-Duc Nguyen, Dung D. Le

SVGD pushes a set of particles towards the Pareto set by applying a form of functional gradient descent, which helps to converge and diversify optimal solutions.

Multi-Task Learning

Enhancing News Recommendation with Hierarchical LLM Prompting

no code implementations29 Apr 2025 Hai-Dang Kieu, Delvin Ce Zhang, Minh Duc Nguyen, Min Xu, Qiang Wu, Dung D. Le

Personalized news recommendation systems often struggle to effectively capture the complexity of user preferences, as they rely heavily on shallow representations, such as article titles and abstracts.

Articles News Recommendation +1

JEPA4Rec: Learning Effective Language Representations for Sequential Recommendation via Joint Embedding Predictive Architecture

no code implementations10 Apr 2025 Minh-Anh Nguyen, Dung D. Le

Language representation learning has emerged as a promising approach for sequential recommendation, thanks to its ability to learn generalizable representations.

Common Sense Reasoning Descriptive +5

Improving Pareto Set Learning for Expensive Multi-objective Optimization via Stein Variational Hypernetworks

1 code implementation23 Dec 2024 Minh-Duc Nguyen, Phuong Mai Dinh, Quang-Huy Nguyen, Long P. Hoang, Dung D. Le

Through extensive experiments across both synthetic and real-world MOO benchmarks, we demonstrate that SVH-PSL significantly improves the quality of the learned Pareto set, offering a promising solution for expensive multi-objective optimization problems.

Gaussian Processes

Keyword-driven Retrieval-Augmented Large Language Models for Cold-start User Recommendations

1 code implementation30 May 2024 Hai-Dang Kieu, Minh Duc Nguyen, Thanh-Son Nguyen, Dung D. Le

In this paper, we introduce KALM4Rec (Keyword-driven Retrieval-Augmented Large Language Models for Cold-start User Recommendations), a novel framework specifically designed to tackle this problem by requiring only a few input keywords from users in a practical scenario of cold-start user restaurant recommendations.

Recommendation Systems Re-Ranking +1

Improving Vietnamese-English Medical Machine Translation

no code implementations28 Mar 2024 Nhu Vo, Dat Quoc Nguyen, Dung D. Le, Massimo Piccardi, Wray Buntine

Machine translation for Vietnamese-English in the medical domain is still an under-explored research area.

Machine Translation Sentence +1

Towards Efficient Pareto-optimal Utility-Fairness between Groups in Repeated Rankings

no code implementations22 Feb 2024 Phuong Dinh Mai, Duc-Trong Le, Tuan-Anh Hoang, Dung D. Le

On the Expohedron, we profile the Pareto curve which captures the trade-off between group fairness and user utility by identifying a finite number of Pareto optimal solutions.

Fairness

A Curious Case of Searching for the Correlation between Training Data and Adversarial Robustness of Transformer Textual Models

1 code implementation18 Feb 2024 Cuong Dang, Dung D. Le, Thai Le

First, empirical analyses show that (a) extracted features can be used with a lightweight classifier such as Random Forest to predict the attack success rate effectively, and (b) features with the most influence on the model robustness have a clear correlation with the robustness.

Adversarial Robustness Adversarial Text

Zero-shot Object-Level OOD Detection with Context-Aware Inpainting

no code implementations5 Feb 2024 Quang-Huy Nguyen, Jin Peng Zhou, Zhenzhen Liu, Khanh-Huyen Bui, Kilian Q. Weinberger, Dung D. Le

RONIN conditions the inpainting process with the predicted ID label, drawing the input object closer to the in-distribution domain.

Out of Distribution (OOD) Detection

Towards Efficient Communication and Secure Federated Recommendation System via Low-rank Training

1 code implementation8 Jan 2024 Ngoc-Hieu Nguyen, Tuan-Anh Nguyen, Tuan Nguyen, Vu Tien Hoang, Dung D. Le, Kok-Seng Wong

Federated Recommendation (FedRec) systems have emerged as a solution to safeguard users' data in response to growing regulatory concerns.

Specificity

Controllable Expensive Multi-objective Learning with Warm-starting Bayesian Optimization

no code implementations26 Nov 2023 Quang-Huy Nguyen, Long P. Hoang, Hoang V. Viet, Dung D. Le

Pareto Set Learning (PSL) is a promising approach for approximating the entire Pareto front in multi-objective optimization (MOO) problems.

Bayesian Optimization Gaussian Processes

Improving Heterogeneous Graph Learning with Weighted Mixed-Curvature Product Manifold

1 code implementation10 Jul 2023 Tuc Nguyen-Van, Dung D. Le, The-Anh Ta

A promising candidate for the faithful embedding of data with varying structure is product manifolds of component spaces of different geometries (spherical, hyperbolic, or euclidean).

Graph Learning Knowledge Graph Embedding +1

Improving Items and Contexts Understanding with Descriptive Graph for Conversational Recommendation

no code implementations11 Apr 2023 Huy Dao, Dung D. Le, Cuong Chu

State-of-the-art methods on conversational recommender systems (CRS) leverage external knowledge to enhance both items' and contextual words' representations to achieve high quality recommendations and responses generation.

Benchmarking Conversational Recommendation +2

Improving Pareto Front Learning via Multi-Sample Hypernetworks

1 code implementation2 Dec 2022 Long P. Hoang, Dung D. Le, Tran Anh Tuan, Tran Ngoc Thang

Pareto Front Learning (PFL) was recently introduced as an effective approach to obtain a mapping function from a given trade-off vector to a solution on the Pareto front, which solves the multi-objective optimization (MOO) problem.

Enhancing Few-shot Image Classification with Cosine Transformer

1 code implementation13 Nov 2022 Quang-Huy Nguyen, Cuong Q. Nguyen, Dung D. Le, Hieu H. Pham

This might result in a significant difference between support and query samples, therefore undermining the performance of few-shot algorithms.

Classification Few-Shot Image Classification +2

Improving Transformers with Probabilistic Attention Keys

1 code implementation16 Oct 2021 Tam Nguyen, Tan M. Nguyen, Dung D. Le, Duy Khuong Nguyen, Viet-Anh Tran, Richard G. Baraniuk, Nhat Ho, Stanley J. Osher

Inspired by this observation, we propose Transformer with a Mixture of Gaussian Keys (Transformer-MGK), a novel transformer architecture that replaces redundant heads in transformers with a mixture of keys at each head.

Language Modeling Language Modelling

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