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Liu Yu

11 accepted papers

2026

Beyond Detection: A Structure-Aware Framework for Scene Text Tracking

ICML 2026poster

Modern visual object trackers show impressive results on general targets, yet their performance drops substantially when dealing with scene text. Although currently underexplored, tracking text in videos is essential for dynamic text manipulations such as segmentation, removal, and editing. To fill …

Cited by 0SourceScholar
2026

Causally-Grounded Dual-Path Attention Intervention for Object Hallucination Mitigation in LVLMs

AAAI 2026technical

Object hallucination remains a critical challenge in Large Vision-Language Models (LVLMs), where models generate content inconsistent with visual inputs. Existing language-decoder based mitigation approaches often regulate visual or textual attention independently, overlooking their interaction as t

Cited by 0SourcePDFScholar
2026

Dismantling Pathological Shortcuts: A Causal Framework for Faithful LVLM Decoding

ICML 2026poster

Large Vision-Language Models (LVLMs) exhibit sophisticated reasoning but remain susceptible to object hallucination. Deviating from the prevailing attention intensity assumption, we reveal a deeper dynamic structural misalignment: hallucination is triggered at decision-critical steps where specific …

Cited by 0SourceScholar
2026

VecDesigner: Exploring Visual Guidance and Structural Consistency for Semantic Typography

ICML 2026poster

Semantic Typography aims to visualize the meaning of an input word through the form of a character, while preserving its legibility. Existing vector-based methods, which primarily rely on text-driven optimization like Score Distillation Sampling (SDS), often produce glyphs that lack rich semantic de…

Cited by 0SourceScholar
2025

Bridging the Fairness Gap: Enhancing Pre-trained Models with LLM-Generated Sentences

ICASSP 2025accepted

Pre-trained language models (PLMs) are trained on data that inherently contains gender biases, leading to undesirable impacts. Traditional debiasing methods often rely on external corpora, which may lack quality, diversity, or demographic balance, affecting the effectiveness of debiasing. With the r…

Cited by 0SourceScholar
2024

Amplifying Diversity and Quality in Commonsense Knowledge Graph Completion (Student Abstract)

AAAI 2024technical

Conventional commonsense knowledge graph completion (CKGC) methods provide inadequate sequence when fine-tuning or generating stages and incorporate full fine-tuning, which fail to align with the autoregressive model's pre-training patterns and have insufficient parameter efficiency. Moreover, decod…

Cited by 2SourcePDFScholar
2024

Biases Mitigation and Expressiveness Preservation in Language Models: A Comprehensive Pipeline (Student Abstract)

AAAI 2024technical

Pre-trained language models (PLMs) have greatly transformed various downstream tasks, yet frequently display social biases from training data, raising fairness concerns. Recent efforts to debias PLMs come with limitations: they either fine-tune the entire parameters in PLMs, which is time-consuming…

Cited by 3SourcePDFScholar
2023

Causal-Debias: Unifying Debiasing in Pretrained Language Models and Fine-tuning via Causal Invariant Learning

ACL 2023long

Demographic biases and social stereotypes are common in pretrained language models (PLMs), and a burgeoning body of literature focuses on removing the unwanted stereotypical associations from PLMs. However, when fine-tuning these bias-mitigated PLMs in downstream natural language processing (NLP) ap…

Cited by 40SourcePDFScholar
2023

Debiasing Intrinsic Bias and Application Bias Jointly via Invariant Risk Minimization (Student Abstract)

AAAI 2023technical

Demographic biases and social stereotypes are common in pretrained language models (PLMs), while the fine-tuning in downstream applications can also produce new biases or amplify the impact of the original biases. Existing works separate the debiasing from the fine-tuning procedure, which results in…

Cited by 3SourcePDFScholar