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Sang Dinh

8 accepted papers

2025

Enhancing Discriminative Representation in Similar Relation Clusters for Few-Shot Continual Relation Extraction

NAACL 2025long

Few-shot Continual Relation Extraction (FCRE) has emerged as a significant challenge in information extraction, necessitating that relation extraction (RE) systems can sequentially identify new relations with limited labeled samples. While existing studies have demonstrated promising results in FCRE…

Cited by 0SourcePDFScholar
2025

GloCOM: A Short Text Neural Topic Model via Global Clustering Context

NAACL 2025long

Uncovering hidden topics from short texts is challenging for traditional and neural models due to data sparsity, which limits word co-occurrence patterns, and label sparsity, stemming from incomplete reconstruction targets. Although data aggregation offers a potential solution, existing neural topic…

2025

HiCOT: Improving Neural Topic Models via Optimal Transport and Contrastive Learning

ACL 2025finding

Recent advances in neural topic models (NTMs) have improved topic quality but still face challenges: weak document-topic alignment, high inference costs due to large pretrained language models (PLMs), and limited modeling of hierarchical topic structures. To address these issues, we introduce HiCOT…

2025

Improving Vietnamese-English Cross-Lingual Retrieval for Legal and General Domains

NAACL 2025short

Document retrieval plays a crucial role in numerous question-answering systems, yet research has concentrated on the general knowledge domain and resource-rich languages like English. In contrast, it remains largely underexplored in low-resource languages and cross-lingual scenarios within specializ…

Cited by 0SourcePDFScholar
2025

Mitigating Non-Representative Prototypes and Representation Bias in Few-Shot Continual Relation Extraction

ACL 2025long

To address the phenomenon of similar classes, existing methods in few-shot continual relation extraction (FCRE) face two main challenges: non-representative prototypes and representation bias, especially when the number of available samples is limited. In our work, we propose Minion to address these…

Cited by 0SourcePDFScholar
2025

More Reliable Pseudo-labels, Better Performance: A Generalized Approach to Single Positive Multi-label Learning

ICCV 2025poster

Multi-label learning is a challenging computer vision task that requires assigning multiple categories to each image. However, fully annotating large-scale datasets is often impractical due to high costs and effort, motivating the study of learning from partially annotated data. In the extreme case…

Cited by 0SourcePDFScholar
2025

Sharpness-Aware Minimization for Topic Models with High-Quality Document Representations

NAACL 2025long

Recent advanced frameworks in topic models have significantly enhanced the performance compared to conventional probabilistic approaches. Such models, mostly constructed from neural network architecture together with other advanced techniques such as contextual embedding, optimal transport distance…

2025

Topic Modeling for Short Texts via Optimal Transport-Based Clustering

ACL 2025finding

Discovering topics and learning document representations in topic space are two crucial aspects of topic modeling, particularly in the short-text setting, where inferring topic proportions for individual documents is highly challenging. Despite significant progress in neural topic modeling, effectiv…