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Thuy-Trang Vu

14 accepted papers

2026

G-reasoner: Foundation Models for Unified Reasoning over Graph-structured Knowledge

ICLR 2026poster

Large language models (LLMs) excel at complex reasoning but remain limited by static and incomplete parametric knowledge. Retrieval-augmented generation (RAG) mitigates this by incorporating external knowledge, yet existing RAGs struggle with knowledge-intensive tasks due to fragmented information a…

Cited by 0SourcecodeScholar
2026

Mitigating Semantic Collapse in Generative Personalization with Test-Time Embedding Adjustment

ICLR 2026poster

In this paper, we investigate the semantic collapsing problem in generative personalization, an under-explored topic where the learned visual concept ($V$) gradually shifts from its original textual meaning and comes to dominate other concepts in multi-concept input prompts. This issue not only redu…

Cited by 0SourcecodeScholar
2025

Discrete Minds in a Continuous World: Do Language Models Know Time Passes?

EMNLP 2025

While Large Language Models (LLMs) excel at temporal reasoning tasks like event ordering and duration estimation, their ability to perceive the actual passage of time remains unexplored. We investigate whether LLMs perceive the passage of time and adapt their decision-making accordingly through thre

Cited by 0SourcePDFScholar
2025

Extending LLMs to New Languages: A Case Study of Llama and Persian Adaptation

COLING 2025main

Large language models (LLMs) have made great progress in classification and text generation tasks. However, they are mainly trained on English data and often struggle with low-resource languages. In this study, we explore adding a new language, i.e., Persian, to Llama (a model with a limited underst…

2025

Fantastic Targets for Concept Erasure in Diffusion Models and Where To Find Them

ICLR 2025poster

Concept erasure has emerged as a promising technique for mitigating the risk of harmful content generation in diffusion models by selectively unlearning undesirable concepts. The common principle of previous works to remove a specific concept is to map it to a fixed generic concept, such as a neutra…

2025

MixLoRA-DSI: Dynamically Expandable Mixture-of-LoRA Experts for Rehearsal-Free Generative Retrieval over Dynamic Corpora

EMNLP 2025

Continually updating model-based indexes in generative retrieval with new documents remains challenging, as full retraining is computationally expensive and impractical under resource constraints. We propose MixLoRA-DSI, a novel framework that combines an expandable mixture of Low-Rank Adaptation ex

2025

Proverbs Run in Pairs: Evaluating Proverb Translation Capability of Large Language Model

ACL 2025finding

Despite achieving remarkable performance, machine translation (MT) research remains underexplored in terms of translating cultural elements in languages, such as idioms, proverbs, and colloquial expressions. This paper investigates the capability of state-of-the-art neural machine translation (NMT)…

Cited by 0SourcePDFScholar
2025

SCAR: Data Selection via Style Consistency-Aware Response Ranking for Efficient Instruction-Tuning of Large Language Models

ACL 2025long

Recent studies emphasize that manually ensuring a consistent response style and maintaining high data quality in training sets can significantly improve the performance of fine-tuned Large Language Models (LLMs) while reducing the number of training examples needed. However, the precise definition o…

2025

The Best of Both Worlds: Bridging Quality and Diversity in Data Selection with Bipartite Graph

ICML 2025poster

The performance of large language models (LLMs) is strongly influenced by the quality and diversity of data used during supervised fine-tuning (SFT). However, current data selection methods often prioritize one aspect over the other, resulting in suboptimal training outcomes. To address this, we for…

Cited by 5SourcePDFScholar
2024

Direct Evaluation of Chain-of-Thought in Multi-hop Reasoning with Knowledge Graphs

ACL 2024findings

Large language models (LLMs) have demonstrated strong reasoning abilities when prompted to generate chain-of-thought (CoT) explanations alongside answers. However, previous research on evaluating LLMs has solely focused on answer accuracy, neglecting the correctness of the generated CoT. In this pap…

2024

Exploring the Potential of Multimodal LLM with Knowledge-Intensive Multimodal ASR

EMNLP 2024finding

Recent advancements in multimodal large language models (MLLMs) have made significant progress in integrating information across various modalities, yet real-world applications in educational and scientific domains remain challenging. This paper introduces the Multimodal Scientific ASR (MS-ASR) task…

2024

Mixture-of-Skills: Learning to Optimize Data Usage for Fine-Tuning Large Language Models

EMNLP 2024main

Large language models (LLMs) are typically fine-tuned on diverse and extensive datasets sourced from various origins to develop a comprehensive range of skills, such as writing, reasoning, chatting, coding, and more. Each skill has unique characteristics, and these datasets are often heterogeneous a…

Cited by 2SourcePDFScholar
2022

Domain Generalisation of NMT: Fusing Adapters with Leave-One-Domain-Out Training

ACL 2022findings

Generalising to unseen domains is under-explored and remains a challenge in neural machine translation. Inspired by recent research in parameter-efficient transfer learning from pretrained models, this paper proposes a fusion-based generalisation method that learns to combine domain-specific paramet…

2021

Generalised Unsupervised Domain Adaptation of Neural Machine Translation with Cross-Lingual Data Selection

EMNLP 2021main

This paper considers the unsupervised domain adaptation problem for neural machine translation (NMT), where we assume the access to only monolingual text in either the source or target language in the new domain. We propose a cross-lingual data selection method to extract in-domain sentences in the…