← Search

Zikai Song

18 accepted papers

2026

Hypergraph-State Collaborative Reasoning for Multi-Object Tracking

CVPR 2026

Motion reasoning serves as the cornerstone of multi-object tracking (MOT), as it enables consistent association of targets across frames. However, existing motion estimation approaches face two major limitations: (1) instability caused by noisy or probabilistic predictions, and (2) vulnerability und

Cited by 0SourcecodeScholar
2026

LoRA-Mixer: Coordinate Modular LoRA Experts Through Serial Attention Routing

ICLR 2026poster

Recent attempts to combine low-rank adaptation (LoRA) with mixture-of-experts (MoE) for multi-task adaptation of Large Language Models (LLMs) often replace whole attention/FFN layers with switch experts or append parallel expert branches, undermining parameter efficiency and limiting task specializa…

Cited by 0SourceScholar
2026

Low-Rank Test-Time Training for Pre-Trained Point Cloud Models

CVPR 2026

Test-time training (TTT) enhances the robustness of pretrained models to out-of-distribution (OOD) data through auxiliary self-supervised tasks, without requiring labeled samples. However, existing TTT methods predominantly rely on decoder-based auxiliary objectives, which suffer from inefficient ad

Cited by 0SourceScholar
2026

PRISM: Synergizing Vision Foundation Models via Self-organized Expert Specialization

ICML 2026poster

Unifying the complementary strengths of diverse Vision Foundation Models (VFMs) into a single efficient model is highly desirable but challenged by the negative transfer inherent in monolithic distillation. To address these feature conflicts, we introduce \textbf{PRISM}, a novel dual-stream Mixture-…

Cited by 0SourceScholar
2026

ReasonMap: Towards Fine-Grained Visual Reasoning from Transit Maps

CVPR 2026

Multimodal large language models (MLLMs) have demonstrated significant progress in semantic scene understanding and text-image alignment, with reasoning variants enhancing performance on more complex tasks involving mathematics and logic. However, their proficiency in tasks requiring both fine-grain

Cited by 0SourcecodeScholar
2025

DEEM: Diffusion models serve as the eyes of large language models for image perception

ICLR 2025spotlight

The development of large language models (LLMs) has significantly advanced the emergence of large multimodal models (LMMs). While LMMs have achieved tremendous success by promoting the synergy between multimodal comprehension and creation, they often face challenges when confronted with out-of-distr…

2025

GA-S3: Comprehensive Social Network Simulation with Group Agents

ACL 2025finding

Social network simulation is developed to provide a comprehensive understanding of social networks in the real world, which can be leveraged for a wide range of applications such as group behavior emergence, policy optimization, and business strategy development. However, billions of individuals and…

2025

Optimized View and Geometry Distillation from Multi-view Diffuser

IJCAI 2025

Generating multi-view images from a single input view using image-conditioned diffusion models is a recent advancement and has shown considerable potential. However, issues such as the lack of consistency in synthesized views and over-smoothing in extracted geometry persist. Previous methods integra

2025

Ref-GS: Directional Factorization for 2D Gaussian Splatting

CVPR 2025poster

In this paper, we introduce Ref-GS, a novel approach for directional light factorization in 2D Gaussian splatting, which enables photorealistic view-dependent appearance rendering and precise geometry recovery. Ref-GS builds upon the deferred rendering of Gaussian splatting and applies directional e…

2025

SF2T: Self-supervised Fragment Finetuning of Video-LLMs for Fine-Grained Understanding

CVPR 2025poster

Video-based Large Language Models (Video-LLMs) have witnessed substantial advancements in recent years, propelled by the advancement in multi-modal LLMs. Although these models have demonstrated proficiency in providing the overall description of videos, they struggle with fine-grained understanding,…

Cited by 1SourcePDFScholar
2025

Temporal Coherent Object Flow for Multi-Object Tracking

AAAI 2025technical

Multi-object tracking is a challenging vision task that requires simultaneous reasoning about object detection and object association. Conventional solutions use frame as the basic unit and typically rely on a motion predictor that exploits the appearance features to associate detected candidates, l…

Cited by 0SourcePDFScholar
2025

Video Anomaly Detection with Motion and Appearance Guided Patch Diffusion Model

AAAI 2025technical

A recent endeavor in one class of video anomaly detection is to leverage diffusion models and posit the task as a generation problem, where the diffusion model is trained to recover normal patterns exclusively, thus reporting abnormal patterns as outliers. Yet, existing attempts neglect the various…

2024

AMD: Anatomical Motion Diffusion with Interpretable Motion Decomposition and Fusion

AAAI 2024technical

Generating realistic human motion sequences from text descriptions is a challenging task that requires capturing the rich expressiveness of both natural language and human motion. Recent advances in diffusion models have enabled significant progress in human motion synthesis. However, existing metho…

Cited by 3SourcePDFScholar
2024

Coupled Mamba: Enhanced Multimodal Fusion with Coupled State Space Model

NeurIPS 2024poster

The essence of multi-modal fusion lies in exploiting the complementary information inherent in diverse modalities.However, most prevalent fusion methods rely on traditional neural architectures and are inadequately equipped to capture the dynamics of interactions across modalities, particularly in p…

Cited by 7SourcePDFScholar
2024

DiffusionTrack: Diffusion Model for Multi-Object Tracking

AAAI 2024technical

Multi-object tracking (MOT) is a challenging vision task that aims to detect individual objects within a single frame and associate them across multiple frames. Recent MOT approaches can be categorized into two-stage tracking-by-detection (TBD) methods and one-stage joint detection and tracking (JDT…

2024

Progressive Text-to-Image Diffusion with Soft Latent Direction

AAAI 2024technical

In spite of the rapidly evolving landscape of text-to-image generation, the synthesis and manipulation of multiple entities while adhering to specific relational constraints pose enduring challenges. This paper introduces an innovative progressive synthesis and editing operation that systematically…

2023

Compact Transformer Tracker with Correlative Masked Modeling

AAAI 2023technical

Transformer framework has been showing superior performances in visual object tracking for its great strength in information aggregation across the template and search image with the well-known attention mechanism. Most recent advances focus on exploring attention mechanism variants for better infor…