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Yanchao Hao

9 accepted papers

2026

Adaptive Token Refinement in Long-Tailed Large Vision-Language Models Fine-Tuning

ICML 2026poster

While large vision-language models (LVLMs) have shown remarkable adaptability to downstream applications, their fine-tuning process remains susceptible to bias under long-tailed data. Compared to zero-shot scenarios, fine-tuning LVLMs on imbalanced datasets often yields limited performance improveme…

Cited by 0SourceScholar
2026

Seeing Is Believing: Grounding Long-Video Understanding in Spatio-Temporal Visual Evidence

AAAI 2026technical

Although Vision Language Models (VLMs) have excelled at image and video understanding, applying them to hour-long videos is held back by two interrelated challenges: exorbitant computational expense and a qualitative breakdown in long-term temporal reasoning. Thus, models tend to generate answers ba

Cited by 0SourcePDFScholar
2025

HFF-Tracker: A Hierarchical Fine-grained Fusion Tracker for Referring Multi-Object Tracking

AAAI 2025technical

Referring Multi-Object Tracking (RMOT) aims to track multiple objects based on a provided language expression. Although prior studies have sought to accomplish this by integrating an textual module into the multi-object tracker, these methods combine text and image features in a basic way, neglectin…

Cited by 0SourcePDFScholar
2025

Reverse Region-to-Entity Annotation for Pixel-Level Visual Entity Linking

AAAI 2025technical

Visual Entity Linking (VEL) is a crucial task for achieving fine-grained visual understanding, matching objects within images (visual mentions) to entities in a knowledge base. Previous VEL tasks rely on textual inputs, but writing queries for complex scenes can be challenging. Visual inputs like cl…

2024

Analyzing Chain-of-thought Prompting in Black-Box Large Language Models via Estimated V-information

COLING 2024main

Chain-of-Thought (CoT) prompting combined with large language models (LLM) has shown great potential in improving performance on challenging reasoning tasks. While understanding why CoT prompting is effective is crucial for the application and improvement of CoT prompting, few studies have addressed…

Cited by 1SourcePDFScholar
2024

From Instance Training to Instruction Learning: Task Adapters Generation from Instructions

NeurIPS 2024poster

Large language models (LLMs) have acquired the ability to solve general tasks by utilizing instruction finetuning (IFT). However, IFT still relies heavily on instance training of extensive task data, which greatly limits the adaptability of LLMs to real-world scenarios where labeled task instances a…

2024

Pruning via Merging: Compressing LLMs via Manifold Alignment Based Layer Merging

EMNLP 2024main

While large language models (LLMs) excel in many domains, their complexity and scale challenge deployment in resource-limited environments. Current compression techniques, such as parameter pruning, often fail to effectively utilize the knowledge from pruned parameters. To address these challenges,…

2023

Class Lifelong Learning for Intent Detection via Structure Consolidation Networks

ACL 2023findings

Intent detection, which estimates diverse intents behind user utterances, is an essential component of task-oriented dialogue systems. Previous intent detection models are usually trained offline, which can only handle predefined intent classes. In the real world, new intents may keep challenging de…

Cited by 3SourcePDFScholar
2023

Novel Relation Detection: Discovering Unknown Relation Types via Multi-Strategy Self-Supervised Learning

EMNLP 2023long findings

Conventional approaches to relation extraction can only recognize predefined relation types. In the real world, new or out-of-scope relation types may keep challenging the deployed models. In this paper, we formalize such a challenging problem as Novel Relation Detection (NRD), which aims to discove…

Cited by 0SourceScholar