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Xinlong Chen

15 accepted papers

2026

AVoCaDO: An Audiovisual Video Captioner Driven by Temporal Orchestration

ICLR 2026poster

Audiovisual video captioning aims to generate semantically rich descriptions with temporal alignment between visual and auditory events, thereby benefiting both video understanding and generation. In this paper, we present **AVoCaDO**, a powerful audiovisual video captioner driven by the temporal or…

Cited by 0SourceScholar
2026

Forest-Based Graph Learning for Semi-Supervised Node Classification

ICLR 2026poster

Existing Graph Neural Networks usually learn long-distance knowledge via stacked layers or global attention, but struggle to balance cost-effectiveness and global receptive field. In this work, we break the dilemma by proposing a novel forest-based graph learning (FGL) paradigm that enables efficien…

Cited by 0SourceScholar
2026

Low-cost Full Fine-tuning: Learning What to Update for LLMs

ICML 2026poster

While Large language models (LLMs) have strong abilities, they generally rely on fine-tuning to supplement downstream task-specific knowledge. Due to the prohibitive memory overhead of full fine-tuning (FT), existing parameter-efficient fine-tuning techniques, e.g., LoRA and Adapters, update paramet…

Cited by 0SourceScholar
2026

OmniDenseCap: Scripting Multi-Scene Videos with Time-Aware and Structural Audio-Visual Captions

ICML 2026poster

This paper proposes Omni Dense Captioning, a novel task designed to generate continuous, fine-grained, and structured audio-visual narratives with explicit timestamps. To ensure dense semantic coverage, we introduce a six-dimensional structural schema to create "script-like" captions, enabling reade…

Cited by 0SourceScholar
2026

OmniSIFT: Modality-Asymmetric Token Compression for Efficient Omni-modal Large Language Models

ICML 2026poster

Omni-modal Large Language Models (Omni-LLMs) have demonstrated strong capabilities in audio-video understanding tasks. However, their reliance on long multimodal token sequences leads to substantial computational overhead. Despite this challenge, token compression methods designed for Omni-LLMs rema…

Cited by 0SourceScholar
2026

RealUnify: Do Unified Models Truly Benefit from Unification? A Comprehensive Benchmark

CVPR 2026

The integration of visual understanding and generation into unified multimodal models represents a significant stride toward general-purpose AI. However, a fundamental question remains unanswered by existing benchmarks: does this architectural unification actually enable synergetic interaction betwe

Cited by 0SourcecodeScholar
2026

The Unseen Bias: How Norm Discrepancy in Pre-Norm MLLMs Leads to Visual Information Loss

ICLR 2026poster

Multimodal Large Language Models (MLLMs), which couple pre-trained vision encoders and language models, have shown remarkable capabilities. However, their reliance on the ubiquitous Pre-Norm architecture introduces a subtle yet critical flaw: a severe norm disparity between the high-norm visual toke…

Cited by 0SourceScholar
2026

VABench: A Comprehensive Benchmark for Audio-Video Generation

CVPR 2026

Recent advances in video generation have been remarkable, enabling models to produce visually compelling videos with synchronized audio. While existing video generation benchmarks provide comprehensive metrics for visual quality, they lack convincing evaluations for audio-video generation, especiall

Cited by 0SourcecodeScholar
2026

VidBridge-R1: Bridging QA and Captioning for RL-based Video Understanding Models with Intermediate Proxy Tasks

ICLR 2026poster

The "Reason-Then-Respond" paradigm, enhanced by Reinforcement Learning, has shown great promise in advancing Multimodal Large Language Models. However, its application to the video domain has led to specialized models that excel at either question answering (QA) or captioning tasks, but struggle to…

Cited by 0SourcecodeScholar
2025

Attention-guided Self-reflection for Zero-shot Hallucination Detection in Large Language Models

EMNLP 2025

Hallucination has emerged as a significant barrier to the effective application of Large Language Models (LLMs). In this work, we introduce a novel Attention-Guided SElf-Reflection (AGSER) approach for zero-shot hallucination detection in LLMs. The AGSER method utilizes attention contributions to ca

Cited by 0SourcePDFScholar
2025

MME-VideoOCR: Evaluating OCR-Based Capabilities of Multimodal LLMs in Video Scenarios

NeurIPS 2025poster

Multimodal Large Language Models (MLLMs) have achieved considerable accuracy in Optical Character Recognition (OCR) from static images. However, their efficacy in video OCR is significantly diminished due to factors such as motion blur, temporal variations, and visual effects inherent in video conte…

Cited by 0SourceScholar
2025

Mixture of Decoding: An Attention-Inspired Adaptive Decoding Strategy to Mitigate Hallucinations in Large Vision-Language Models

ACL 2025finding

Large Vision-Language Models (LVLMs) have exhibited impressive capabilities across various visual tasks, yet they remain hindered by the persistent challenge of hallucinations. To address this critical issue, we propose Mixture of Decoding (MoD), a novel approach for hallucination mitigation that dy…

2025

VidCapBench: A Comprehensive Benchmark of Video Captioning for Controllable Text-to-Video Generation

ACL 2025finding

The training of controllable text-to-video (T2V) models relies heavily on the alignment between videos and captions, yet little existing research connects video caption evaluation with T2V generation assessment. This paper introduces VidCapBench, a video caption evaluation scheme specifically design…

2024

Curriculum-Enhanced Residual Soft An-Isotropic Normalization for Over-Smoothness in Deep GNNs

AAAI 2024technical

Despite Graph neural networks' significant performance gain over many classic techniques in various graph-related downstream tasks, their successes are restricted in shallow models due to over-smoothness and the difficulties of optimizations among many other issues. In this paper, to alleviate the o…

2024

Training Graph Transformers via Curriculum-Enhanced Attention Distillation

ICLR 2024poster

Recent studies have shown that Graph Transformers (GTs) can be effective for specific graph-level tasks. However, when it comes to node classification, training GTs remains challenging, especially in semi-supervised settings with a severe scarcity of labeled data. Our paper aims to address this rese…

Cited by 1SourcePDFScholar