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Haochen Wang

38 accepted papers

2026

CrossVid: A Comprehensive Benchmark for Evaluating Cross-Video Reasoning in Multimodal Large Language Models

AAAI 2026technical

Cross-Video Reasoning (CVR) presents a significant challenge in video understanding, which requires simultaneous understanding of multiple videos to aggregate and compare information across groups of videos. Most existing video understanding benchmarks focus on single-video analysis, failing to asse

Cited by 3SourcePDFScholar
2026

DRIVE: Distributional and Retrieval-Augmented Bidding with Value Evaluation

ICML 2026poster

Auto-bidding is a core component of real-time advertising systems, where decisions must optimize long-term performance under budget and cost constraints, while online exploration is prohibitively risky. Offline reinforcement learning and, more recently, Transformer-based sequence modeling have shown…

Cited by 0SourceScholar
2026

DriveVLA-W0: World Models Amplify Data Scaling Law in Autonomous Driving

ICLR 2026poster

Scaling Vision-Language-Action (VLA) models on large-scale data offers a promising path to achieving a more generalized driving intelligence. However, VLA models are limited by a ``supervision deficit'': the vast model capacity is supervised by sparse, low-dimensional actions, leaving much of their…

Cited by 0SourcecodeScholar
2026

Grasp Any Region: Prompting MLLM to Understand the Dense World

ICLR 2026poster

While Multimodal Large Language Models (MLLMs) excel at holistic understanding, they struggle with the dense world, i.e., complex scenes requiring fine-grained analysis of intricate details and object inter-relationships. Region-level MLLMs have been a promising step. However, previous attempts are…

Cited by 0SourcecodeScholar
2026

Hierarchical Control for Real-Time 3D Manipulation of Magnetic Bead Using a Single Permanent Magnet

RA-L 2026

Permanent magnet (PM) actuated micro robotics offers significant advantages for minimally invasive medicine, but faces three critical challenges: nonlinear magnetic force relationships, directional control asymmetry between horizontal and vertical motion, and imaging–capturing frequency mismatch. Th

Cited by 0SourceScholar
2026

Open-o3-Video: Grounded Video Reasoning with Explicit Spatio-Temporal Evidence

ICML 2026poster

Most video reasoning models only generate textual reasoning traces without indicating when and where key evidence appears. Recent models such as OpenAI-o3 have sparked wide interest in evidence-centered reasoning for images, yet extending this ability to videos is more challenging due to the need fo…

Cited by 43SourceScholar
2026

Pallatom-Ligand: an All-Atom Diffusion Model for Designing Ligand-Binding Proteins

ICLR 2026poster

Small-molecule ligands extend protein functionality beyond natural amino acids, enabling sophisticated processes like catalysis, signal transduction, and light harvesting. However, designing proteins with high affinity and selectivity for arbitrary ligands remains a major challenge. We present Palla…

Cited by 0SourcecodeScholar
2026

Parallel Multimodal Diffusion Language Models for Thinking-Aware Editing and Generation

ICLR 2026poster

While thinking-aware generation aims to improve performance on complex tasks, we identify a critical failure mode where existing sequential, autoregressive approaches can paradoxically degrade performance due to error propagation. To systematically analyze this issue, we propose ParaBench, a new be…

Cited by 0SourcecodeScholar
2026

SAMTok: Representing Any Mask with Two Words

CVPR 2026

Pixel-wise capabilities are essential for building interactive intelligent systems. However, pixel-wise multi-modal LLMs (MLLMs) remain difficult to scale due to complex region-level encoders, specialized segmentation decoders, and incompatible training objectives. To address these challenges, we pr

Cited by 0SourcecodeScholar
2026

Traceable Evidence Enhanced Visual Grounded Reasoning: Evaluation and Method

ICLR 2026poster

Models like OpenAI-o3 pioneer visual grounded reasoning by dynamically ref- erencing visual regions, just like human “thinking with images”. However, no benchmark exists to evaluate these capabilities holistically. To bridge this gap, we propose TreeBench (Traceable Evidence Evaluation Benchmark), a…

Cited by 58SourcecodeScholar
2025

DocVideoQA: Towards Comprehensive Understanding of Document-Centric Videos through Question Answering

ICASSP 2025accepted

Remote work and online courses have become important methods of knowledge dissemination, leading to a large number of document-based instructional videos. Unlike traditional video datasets, these videos mainly feature rich-text images and audio that are densely packed with information closely tied t…

Cited by 0SourceScholar
2025

Holistic Tokenizer for Autoregressive Image Generation

ICCV 2025poster

Vanilla autoregressive image generation models generate visual tokens step-by-step, limiting their ability to capture holistic relationships among token sequences. Moreover, because most visual tokenizers map local image patches into latent tokens, global information is limited. To address this, we…

2025

Integrating Learning-Based Manipulation and Physics-Based Locomotion for Whole-Body Badminton Robot Control

ICRA 2025

Learning-based methods, such as imitation learning (IL) and reinforcement learning (RL), can produce excel control policies over challenging agile robot tasks, such as sports robot. However, no existing work has harmonized learning-based policy with model-based methods to reduce training complexity

Cited by 6SourceScholar
2025

MVU-Eval: Towards Multi-Video Understanding Evaluation for Multimodal LLMs

NeurIPS 2025poster

The advent of Multimodal Large Language Models (MLLMs) has expanded AI capabilities to visual modalities, yet existing evaluation benchmarks remain limited to single-video understanding, overlooking the critical need for multi-video understanding in real-world scenarios (e.g., sports analytics and a…

Cited by 0SourceScholar
2025

Object-centric Video Question Answering with Visual Grounding and Referring

ICCV 2025poster

Video Large Language Models (VideoLLMs) have recently demonstrated remarkable progress in general video understanding. However, existing models primarily focus on high-level comprehension and are limited to text-only responses, restricting the flexibility for object-centric, multi-round interactions…

Cited by 14SourcePDFScholar
2025

Reconstructive Visual Instruction Tuning

ICLR 2025poster

This paper introduces reconstructive visual instruction tuning (ROSS), a family of Large Multimodal Models (LMMs) that exploit vision-centric supervision signals. In contrast to conventional visual instruction tuning approaches that exclusively supervise text outputs, ROSS prompts LMMs to supervise…

Cited by 65SourcePDFScholar
2025

Ross3D: Reconstructive Visual Instruction Tuning with 3D-Awareness

ICCV 2025poster

The rapid development of Large Multimodal Models (LMMs) for 2D images and videos has spurred efforts to adapt these models for interpreting 3D scenes. However, the absence of large-scale 3D vision-language datasets has posed a significant obstacle. To address this issue, typical approaches focus on…

Cited by 0SourcePDFScholar
2025

The Scalability of Simplicity: Empirical Analysis of Vision-Language Learning with a Single Transformer

ICCV 2025poster

This paper introduces SAIL, a single transformer unified multimodal large language model (MLLM) that integrates raw pixel encoding and language decoding within a singular architecture. Unlike existing modular MLLMs, which rely on a pre-trained vision transformer (ViT), SAIL eliminates the need for a…

2024

Alpha Invariance: On Inverse Scaling Between Distance and Volume Density in Neural Radiance Fields

CVPR 2024poster

Scale-ambiguity in 3D scene dimensions leads to magnitude-ambiguity of volumetric densities in neural radiance fields i.e. the densities double when scene size is halved and vice versa. We call this property alpha invariance. For NeRFs to better maintain alpha invariance we recommend 1) parameterizi…

Cited by 0SourcePDFScholar
2024

Click Prompt Learning with Optimal Transport for Interactive Segmentation

ECCV 2024poster

"Click-based interactive segmentation aims to segment target objects conditioned on user-provided clicks. Existing methods typically interpret user intention by learning multiple click prompts to generate corresponding prompt-activated masks, and selecting one from these masks. However, directly mat…

2024

JeDi: Joint-Image Diffusion Models for Finetuning-Free Personalized Text-to-Image Generation

CVPR 2024poster

Personalized text-to-image generation models enable users to create images that depict their individual possessions in diverse scenes finding applications in various domains. To achieve the personalization capability existing methods rely on finetuning a text-to-image foundation model on a user's cu…

Cited by 20SourcePDFScholar
2024

OpenSatMap: A Fine-grained High-resolution Satellite Dataset for Large-scale Map Construction

NeurIPS 2024poster

In this paper, we propose OpenSatMap, a fine-grained, high-resolution satellite dataset for large-scale map construction. Map construction is one of the foundations of the transportation industry, such as navigation and autonomous driving. Extracting road structures from satellite images is an effic…

Cited by 1SourcePDFScholar
2024

VISA: Reasoning Video Object Segmentation via Large Language Model

ECCV 2024poster

"Existing Video Object Segmentation (VOS) relies on explicit user instructions, such as categories, masks, or short phrases, restricting their ability to perform complex video segmentation requiring reasoning with world knowledge. In this paper, we introduce a new task, Reasoning Video Object Segmen…

2023

Balancing Logit Variation for Long-Tailed Semantic Segmentation

CVPR 2023poster

Semantic segmentation usually suffers from a long tail data distribution. Due to the imbalanced number of samples across categories, the features of those tail classes may get squeezed into a narrow area in the feature space. Towards a balanced feature distribution, we introduce category-wise variat…

2023

DropPos: Pre-Training Vision Transformers by Reconstructing Dropped Positions

NeurIPS 2023poster

As it is empirically observed that Vision Transformers (ViTs) are quite insensitive to the order of input tokens, the need for an appropriate self-supervised pretext task that enhances the location awareness of ViTs is becoming evident. To address this, we present DropPos, a novel pretext task desig…

2023

Hard Patches Mining for Masked Image Modeling

CVPR 2023poster

Masked image modeling (MIM) has attracted much research attention due to its promising potential for learning scalable visual representations. In typical approaches, models usually focus on predicting specific contents of masked patches, and their performances are highly related to pre-defined mask…

2023

Score Jacobian Chaining: Lifting Pretrained 2D Diffusion Models for 3D Generation

CVPR 2023poster

A diffusion model learns to predict a vector field of gradients. We propose to apply chain rule on the learned gradients, and back-propagate the score of a diffusion model through the Jacobian of a differentiable renderer, which we instantiate to be a voxel radiance field. This setup aggregates 2D s…

2023

Towards Open-Vocabulary Video Instance Segmentation

ICCV 2023oral

Video Instance Segmentation (VIS) aims at segmenting and categorizing objects in videos from a closed set of training categories, lacking the generalization ability to handle novel categories in real-world videos. To address this limitation, we make the following three contributions. First, we intro…

Cited by 36PDFcodeScholar
2022

Learning from Future: A Novel Self-Training Framework for Semantic Segmentation

NeurIPS 2022accept

Self-training has shown great potential in semi-supervised learning. Its core idea is to use the model learned on labeled data to generate pseudo-labels for unlabeled samples, and in turn teach itself. To obtain valid supervision, active attempts typically employ a momentum teacher for pseudo-label…

2022

NFormer: Robust Person Re-Identification With Neighbor Transformer

CVPR 2022poster

Person re-identification aims to retrieve persons in highly varying settings across different cameras and scenarios, in which robust and discriminative representation learning is crucial. Most research considers learning representations from single images, ignoring any potential interactions between…

Cited by 175PDFcodeScholar
2022

Semi-Supervised Semantic Segmentation Using Unreliable Pseudo-Labels

CVPR 2022poster

The crux of semi-supervised semantic segmentation is to assign pseudo-labels to the pixels of unlabeled images. A common practice is to select the highly confident predictions as the pseudo ground-truth, but it leads to a problem that most pixels may be left unused due to their unreliability. We arg…

Cited by 495PDFcodeScholar
2020

Few-Shot Semantic Segmentation with Democratic Attention Networks

ECCV 2020poster

Few-shot segmentation has recently generated great popularity, addressing a challenging yet important problem of segmenting objects from unseen categories with scarce annotated support images. The crux of few-shot segmentation is to extract object information from the support image and then propagat…

Cited by 234SourcePDFScholar
2019

Seeing through Sounds: Predicting Visual Semantic Segmentation Results from Multichannel Audio Signals

ICASSP 2019accepted

Sounds provide us with vast amounts of information about surrounding objects and can even remind us visual images of them. Is it possible to implement this noteworthy human ability on machines? In this paper, we study a new task that consists of predicting image recognition results in the form of se…

Cited by 0SourceScholar