← Search

Han Zhang

129 accepted papers

2026

ARLArena: Demystifying Policy Gradient Stability in Agentic Reinforcement Learning

ICML 2026poster

Agentic reinforcement learning (ARL) has rapidly gained attention as a promising paradigm for training agents to solve complex, multi-step interactive tasks. In this paper, we first propose $\textbf{ARLArena}$, a fair and systematic analysis framework that encompasses a broad spectrum of ARL algorit…

Cited by 0SourceScholar
2026

Children's Intelligence Tests Pose Challenges for MLLMs? KidGym: A 2D Grid-Based Reasoning Benchmark for MLLMs

ICLR 2026poster

Multimodal Large Language Models (MLLMs) combine the linguistic strengths of LLMs with the ability to process multimodal data, enabling them to address a broader range of tasks. This progression highlights a shift from language-only reasoning to integrated vision–language reasoning in children's dev…

Cited by 0SourcecodeScholar
2026

Deconstructing Positional Information: From Attention Logits to Training Biases

ICLR 2026poster

Positional encodings, a mechanism for incorporating sequential information into the Transformer model, are central to contemporary research on neural architectures. Previous work has largely focused on understanding their function through the principle of distance attenuation, where proximity dictat…

Cited by 0SourceScholar
2026

End-to-End Diffusion-Based 3D Object Reconstruction From Robotic Tactile Sensing

RA-L 2026

Tactile sensing is essential for robotic perception in scenarios where visual input is limited or unavailable. In this work, we propose a fully tactile-based 3D object reconstruction framework that recovers object shapes exclusively from contact observations. A robotic system comprising a robotic ar

Cited by 1SourceScholar
2026

FACTGUARD: Event-Centric and Commonsense-Guided Fake News Detection

AAAI 2026technical

Fake news detection methods based on writing style have achieved remarkable progress. However, as adversaries increasingly imitate the style of authentic news, the effectiveness of such approaches is gradually diminishing. Recent research has explored incorporating large language models (LLMs) to en

Cited by 0SourcePDFScholar
2026

FMIP: Joint Continuous-Integer Flow For Mixed-Integer Linear Programming

ICLR 2026poster

Mixed-Integer Linear Programming (MILP) is a foundational tool for complex decision-making problems. However, the NP-hard nature of MILP presents a significant computational challenge, motivating the development of machine learning-based heuristic solutions to accelerate downstream solvers. While…

Cited by 0SourceScholar
2026

FreeArtGS: Articulated Gaussian Splatting Under Free-moving Scenario

CVPR 2026

The increasing demand for augmented reality and robotics is driving the need for articulated object reconstruction with high scalability. However, existing settings for reconstructing from discrete articulation states or casual monocular videos require non-trivial axis alignment or suffer from insuf

Cited by 0SourcecodeScholar
2026

GEPO: Group Expectation Policy Optimization for Stable Heterogeneous Reinforcement Learning

ICLR 2026poster

As single-center computing approaches power constraints, decentralized training becomes essential. However, traditional Reinforcement Learning (RL) methods, crucial for enhancing large model post-training, cannot adapt to decentralized distributed training due to the tight coupling between parameter…

Cited by 0SourceScholar
2026

HoMMI: Learning Whole-Body Mobile Manipulation from Human Demonstrations

RSS 2026poster

We present Whole-Body Mobile Manipulation Interface (HoMMI), a data collection and policy learning framework that learns whole-body mobile manipulation directly from robot-free human demonstrations. We augment UMI interfaces with egocentric sensing to capture the global context required for mobile m…

Cited by 0SourceScholar
2026

MAMBO-G: Magnitude-Aware Mitigation for Boosted Guidance

ICML 2026poster

High-fidelity text-to-image and text-to-video generation typically relies on Classifier-Free Guidance (CFG), but achieving optimal results often demands computationally expensive sampling schedules. In this work, we propose MAMBO-G, a training-free acceleration framework that significantly reduces c…

Cited by 0SourceScholar
2026

MetaVLA: Unified Meta Co-Training for Efficient Embodied Adaptation

ICLR 2026poster

Vision–Language–Action (VLA) models show promise in embodied reasoning, yet remain far from true generalists—they often require task-specific fine-tuning, incur high compute costs, and generalize poorly to unseen tasks. We propose MetaVLA, a unified, backbone-agnostic post-training framework for eff…

Cited by 0SourceScholar
2026

Monocular Open Vocabulary Occupancy Prediction for Indoor Scenes

CVPR 2026

Open-vocabulary 3D occupancy is vital for embodied agents, which need to understand complex indoor environments where semantic categories are abundant and evolve beyond fixed taxonomies. While recent work has explored open-vocabulary occupancy in outdoor driving scenarios, such methods transfer poor

Cited by 0SourcecodeScholar
2026

Out-of-Context Misinformation Detection via Variational Domain-Invariant Learning with Test-Time Training

AAAI 2026technical

Out-of-context misinformation (OOC) is a low-cost form of misinformation in news reports, which refers to place authentic images into out-of-context or fabricated image-text pairings. This problem has attracted significant attention from researchers in recent years. Current methods focus on assessin

Cited by 0SourcePDFScholar
2026

PromptRL: Prompt Matters in RL for Flow-Based Image Generation

ICML 2026poster

Flow matching models (FMs) have revolutionized text-to-image (T2I) generation, with reinforcement learning (RL) serving as a critical post-training strategy for alignment with reward objectives. In this research, we show that current RL pipelines for FMs suffer from two underappreciated yet importan…

Cited by 0SourceScholar
2026

STELAR-VISION: Self-Topology-Aware Efficient Learning for Aligned Reasoning in Vision

AAAI 2026technical

Vision-language models (VLMs) have made significant strides in reasoning, yet they often struggle with complex multimodal tasks and tend to generate overly verbose outputs. A key limitation is their reliance on chain-of-thought (CoT) reasoning, despite many tasks benefiting from alternative topologi

Cited by 0SourcePDFScholar
2026

Similarity Is Not Logic: Factored Inference for Dual-Encoder Vision-Language Models

ICML 2026poster

Dual-encoder vision-language models (VLMs) expose a similarity interface that enables zero-shot retrieval but fails compositional constraints: queries like “umbrella and no person” retrieve images containing both, even when concept detection is reliable. We trace this to an interface-level **Bag-of-…

Cited by 0SourceScholar
2026

Spikingformer: A Key Foundation Model for Spiking Neural Networks

AAAI 2026technical

Spiking neural networks (SNNs) offer a promising energy-efficient alternative to artificial neural networks, due to their event-driven spiking computation. However, some foundation SNN backbones (including Spikformer and SEW ResNet) suffer from non-spike computations (integer-float multiplications)

Cited by 0SourcePDFScholar
2026

StoryTailor:A Zero-Shot Pipeline for Action-Rich Multi-Subject Visual Narratives

CVPR 2026

Generating multi-frame, action-rich visual narratives without fine-tuning faces a threefold tension: action text faithfulness, subject identity fidelity, and cross frame background continuity. We propose StoryTailor, a zero-shot pipeline that runs on a single RTX 4090 (24 GB) and produces temporally

Cited by 0SourceScholar
2026

Unifying Perception and Action: A Hybrid-Modality Pipeline with Implicit Visual Chain-of-Thought for Robotic Action Generation

CVPR 2026

Vision-Language-Action (VLA) models built upon Chain-of-Thought (CoT) have achieved remarkable success in advancing general-purpose robotic agents, owing to its significant perceptual comprehension. Recently, since text-only CoT struggles to adequately capture scene details in complex spatial enviro

Cited by 0SourceScholar
2025

A 4D Radar Camera Extrinsic Calibration Tool Based on 3D Uncertainty Perspective N Points

IROS 2025

4D imaging radar is a type of low-cost millimeter-wave radar(costing merely 10-20% of lidar systems) capable of providing range, azimuth, elevation, and Doppler velocity information. Accurate extrinsic calibration between millimeter-wave radar and camera systems is critical for robust multimodal per

Cited by 2SourceScholar
2025

AMSER: Accelerate Mobile Speech Emotion Recognition with Signal Compression

ICASSP 2025accepted

Speech-based interaction systems are widely used in mobile devices like smartphones. With advances in deep neural networks, tasks such as speech emotion recognition (SER) enhance these systems’ user-friendliness. However, deploying SER models on mobile devices is challenging due to their complexity…

Cited by 0SourceScholar
2025

Accelerating Diffusion Sampling via Exploiting Local Transition Coherence

ICCV 2025poster

Text-based diffusion models have made significant breakthroughs in generating high-quality images and videos from textual descriptions. However, the lengthy sampling time of the denoising process remains a significant bottleneck in practical applications. Previous methods either ignore the statistic…

2025

BACON: Improving Clarity of Image Captions via Bag-of-Concept Graphs

CVPR 2025poster

Advancements in large Vision-Language Models have brought precise, accurate image captioning, vital for advancing multi-modal image understanding and processing. Yet these captions often carry lengthy, intertwined contexts that are difficult to parse and frequently overlook essential cues, posing a…

Cited by 0SourcePDFScholar
2025

Beyond Human Labels: A Multi-Linguistic Auto-Generated Benchmark for Evaluating Large Language Models on Resume Parsing

EMNLP 2025

Efficient resume parsing is critical for global hiring, yet the absence of dedicated benchmarks for evaluating large language models (LLMs) on multilingual, structure-rich resumes hinders progress. To address this, we introduce ResumeBench, the first privacy-compliant benchmark comprising 2,500 synt

2025

BeyondGender: A Multifaceted Bilingual Dataset for Practical Sexism Detection

AAAI 2025technical

Sexism affects both women and men, yet research often overlooks misandry and suffers from overly broad annotations that limit AI applications. To address this, we introduce BeyondGender, a dataset meticulously annotated according to the latest definitions of misogyny and misandry. It features innova…

Cited by 0SourcePDFScholar
2025

CHURRO: Making History Readable with an Open-Weight Large Vision-Language Model for High-Accuracy, Low-Cost Historical Text Recognition

EMNLP 2025

Accurate text recognition for historical documents can greatly advance the study and preservation of cultural heritage. Existing vision-language models (VLMs), however, are designed for modern, standardized texts and are not equipped to read the diverse languages and scripts, irregular layouts, and

2025

COPR: Continual Human Preference Learning via Optimal Policy Regularization

ACL 2025finding

Reinforcement Learning from Human Feedback (RLHF) is effective for aligning Large Language Models (LLMs) with human preferences. However, RLHF’s complex process limits its ability to continually learn human feedback, making it impractical for real-world applications where the deployed model continuo…

Cited by 0SourcePDFScholar
2025

Correcting Large Language Model Behavior via Influence Function

AAAI 2025technical

Recent advancements in AI alignment techniques have significantly improved the alignment of large language models (LLMs) with static human preferences. However, the dynamic nature of human preferences can render some prior training data outdated or even erroneous, ultimately causing LLMs to deviate…

Cited by 0SourcePDFScholar
2025

DOGlove: Dexterous Manipulation with a Low-Cost Open-Source Haptic Force Feedback Glove

RSS 2025poster

Dexterous hand teleoperation plays a pivotal role in enabling robots to achieve human-level manipulation dexterity. However, current teleoperation systems often rely on expensive equipment and lack multi-modal sensory feedback, restricting human operators’ ability to perceive object properties and p…

Cited by 4PDFScholar
2025

DexUMI: Using Human Hand as the Universal Manipulation Interface for Dexterous Manipulation

CoRL 2025oral

We present DexUMI - a data collection and policy learning framework that uses the human hand as the natural interface to transfer dexterous manipulation skills to various robot hands. DexUMI incorporates hardware and software adaptations to minimize the embodiment gap between the human hand and vari…

Cited by 0SourceScholar
2025

Epsilon-VAE: Denoising as Visual Decoding

ICML 2025poster

In generative modeling, tokenization simplifies complex data into compact, structured representations, creating a more efficient, learnable space. For high-dimensional visual data, it reduces redundancy and emphasizes key features for high-quality generation. Current visual tokenization methods rely…

Cited by 0SourcePDFScholar
2025

Inheriting Generalized Learngene for Efficient Knowledge Transfer across Multiple Tasks

AAAI 2025technical

In practical applications, it is often necessary to transfer knowledge from large pretrained models to small ones with various architectures for tackling different tasks. The Learngene framework, proposed recently, firstly extracts one compact module termed as learngene from a large well-trained mod…

Cited by 0SourcePDFScholar
2025

MITracker: Multi-View Integration for Visual Object Tracking

CVPR 2025highlight

Multi-view object tracking (MVOT) offers promising solutions to challenges such as occlusion and target loss, which are common in traditional single-view tracking. However, progress has been limited by the lack of comprehensive multi-view datasets and effective cross-view integration methods. To ove…

Cited by 0SourcePDFScholar
2025

MUC: Mixture of Uncalibrated Cameras for Robust 3D Human Body Reconstruction

AAAI 2025technical

Multiple cameras can provide comprehensive multi-view video coverage of a person. Fusing this multi-view data is crucial for tasks like behavioral analysis, although it traditionally requires camera calibration—a process that is often complex. Moreover, previous studies have overlooked the challenge…

2025

MagicMan: Generative Novel View Synthesis of Humans with 3D-Aware Diffusion and Iterative Refinement

AAAI 2025technical

Existing works in single-image human reconstruction suffer from weak generalizability due to insufficient training data or 3D inconsistencies for a lack of comprehensive multi-view knowledge. In this paper, we introduce MagicMan, a human-specific multi-view diffusion model to generate high-quality n…

Cited by 8SourcePDFScholar
2025

Pan-protein Design Learning Enables Task-adaptive Generalization for Low-resource Enzyme Design

ICASSP 2025accepted

Computational protein design (CPD) offers transformative potential for bioengineering, but current deep CPD models, focused on universal domains, struggle with function-specific designs. This work introduces a novel CPD paradigm tailored for functional design tasks, particularly for enzymes a key pr…

Cited by 0SourceScholar
2025

Protein Large Language Models: A Comprehensive Survey

EMNLP 2025

Protein-specific large language models (ProteinLLMs) are revolutionizing protein science by enabling more efficient protein structure prediction, function annotation, and design. While existing surveys focus on specific aspects or applications, this work provides the first comprehensive overview of

2025

Rethinking Early-Fusion Strategies for Improved Multimodal Image Segmentation

ICASSP 2025accepted

RGB and thermal image fusion have great potential to exhibit improved semantic segmentation in low-illumination conditions. Existing methods typically employ a two-branch encoder framework for multimodal feature extraction and design complicated feature fusion strategies to achieve feature extractio…

Cited by 0SourceScholar
2025

Revolutionizing Disease Diagnosis with simultaneous functional PET/MR and Deeply Integrated Brain Metabolic, Hemodynamic, and Perfusion Networks

ICASSP 2025accepted

Simultaneous functional PET/MR (sf-PET/MR) presents a cutting-edge multimodal neuroimaging technique. It provides an unprecedented opportunity for concurrently monitoring and integrating multifaceted brain networks built by spatiotemporally covaried metabolic activity, neural activity, and cerebral…

Cited by 0SourceScholar
2025

S$^2$M-Former: Spiking Symmetric Mixing Branchformer for Brain Auditory Attention Detection

NeurIPS 2025poster

Auditory attention detection (AAD) aims to decode listeners' focus in complex auditory environments from electroencephalography (EEG) recordings, which is crucial for developing neuro-steered hearing devices. Despite recent advancements, EEG-based AAD remains hindered by the absence of synergistic…

Cited by 0SourcecodeScholar
2025

SEE: Semantically Aligned EEG-to-Text Translation

ICASSP 2025accepted

Decoding neurophysiological signals into language is of great research interest within brain-computer interface (BCI) applications. Electroencephalography (EEG), known for its non-invasiveness, ease of use, and cost-effectiveness, has been a popular method in this field. However, current EEG-to-Text…

Cited by 0SourceScholar
2025

The Matrix: Infinite-Horizon World Generation with Real-Time Moving Control

NeurIPS 2025poster

We present The Matrix, a foundational realistic world simulator capable of generating infinitely long 720p high-fidelity real-scene video streams with real-time, responsive control in both first- and third-person perspectives. Trained on limited supervised data from video games like Forza Horizon 5…

Cited by 0SourceScholar
2025

Towards Comprehensive and Prerequisite-Free Explainer for Graph Neural Networks

IJCAI 2025

To enhance the reliability and credibility of graph neural networks (GNNs) and improve the transparency of their decision logic, a new field of explainability of GNNs (XGNN) has emerged. However, two major limitations severely degrade the performance and hinder the generalizability of existing XGNN

2025

Understanding the Generalization of Stochastic Gradient Adam in Learning Neural Networks

NeurIPS 2025poster

Adam is a popular and widely used adaptive gradient method in deep learning, which has also received tremendous focus in theoretical research. However, most existing theoretical work primarily analyzes its full-batch version, which differs fundamentally from the stochastic variant used in practice.…

Cited by 0SourceScholar
2024

4DBInfer: A 4D Benchmarking Toolbox for Graph-Centric Predictive Modeling on RDBs

NeurIPS 2024poster

Given a relational database (RDB), how can we predict missing column values in some target table of interest? Although RDBs store vast amounts of rich, informative data spread across interconnected tables, the progress of predictive machine learning models as applied to such tasks arguably falls we…

2024

9DTact: A Compact Vision-Based Tactile Sensor for Accurate 3D Shape Reconstruction and Generalizable 6D Force Estimation

RA-L 2024

The advancements in vision-based tactile sensors have boosted the aptitude of robots to perform contact-rich manipulation, particularly when precise positioning and contact state of the manipulated objects are crucial for successful execution. In this work, we present <underline xmlns:mml="http://ww

Cited by 80SourceScholar
2024

A Multi-Level Framework for Accelerating Training Transformer Models

ICLR 2024poster

The fast growing capabilities of large-scale deep learning models, such as Bert, GPT and ViT, are revolutionizing the landscape of NLP, CV and many other domains. Training such models, however, poses an unprecedented demand for computing power, which incurs exponentially increasing energy cost and c…

2024

ArrayBot: Reinforcement Learning for Generalizable Distributed Manipulation through Touch

ICRA 2024poster

We present ArrayBot, a distributed manipulation system consisting of a 16 × 16 array of vertically sliding pillars integrated with tactile sensors. Functionally, ArrayBot is designed to simultaneously support, perceive, and manipulate the tabletop objects. Towards generalizable distributed manipulat…

Cited by 14SourceScholar
2024

BatteryML: An Open-source Platform for Machine Learning on Battery Degradation

ICLR 2024spotlight

Battery degradation remains a pivotal concern in the energy storage domain, with machine learning emerging as a potent tool to drive forward insights and solutions. However, this intersection of electrochemical science and machine learning poses complex challenges. Machine learning experts often gra…

2024

CCM: Real-Time Controllable Visual Content Creation Using Text-to-Image Consistency Models

ICML 2024poster

Consistency Models (CMs) have showed a promise in creating high-quality images with few steps. However, the way to add new conditional controls to the pre-trained CMs has not been explored. In this paper, we explore the pivotal subject of leveraging the generative capacity and efficiency of consiste…

Cited by 4SourcePDFScholar
2024

CPPO: Continual Learning for Reinforcement Learning with Human Feedback

ICLR 2024poster

The approach of Reinforcement Learning from Human Feedback (RLHF) is widely used for enhancing pre-trained Language Models (LM), enabling them to better align with human preferences. Existing RLHF-based LMs however require complete retraining whenever new queries or feedback are introduced, as human…

Cited by 17SourcePDFScholar
2024

Discriminative Semi-Supervised Feature Selection Via a Class-Credible Pseudo-Label Learning Framework

ICASSP 2024accepted

Most of existing semi-supervised learning methods heavily depend on labeled samples and always indistinguishably regard all unlabeled instances. However, unreliable samples lying around the boundary lines severely disturb training models. To address the problems, we pose a Class-credible Pseudo-labe…

Cited by 0SourceScholar
2024

DreamClean: Restoring Clean Image Using Deep Diffusion Prior

ICLR 2024poster

Image restoration poses a garners substantial interest due to the exponential surge in demands for recovering high-quality images from diverse mobile camera devices, adverse lighting conditions, suboptimal shooting environments, and frequent image compression for efficient transmission purposes. Yet…

Cited by 9SourcePDFScholar
2024

Efficient Multi-view Unsupervised Feature Selection with Adaptive Structure Learning and Inference

IJCAI 2024poster

As data with diverse representations become high-dimensional, multi-view unsupervised feature selection has been an important learning paradigm. Generally, existing methods encounter the following challenges: (i) traditional solutions either concatenate different views or introduce extra parameters…

Cited by 11SourcePDFScholar
2024

EmpathyEar: An Open-source Avatar Multimodal Empathetic Chatbot

ACL 2024system demonstrations

This paper introduces EmpathyEar, a pioneering open-source, avatar-based multimodal empathetic chatbot, to fill the gap in traditional text-only empathetic response generation (ERG) systems. Leveraging the advancements of a large language model, combined with multimodal encoders and generators, Empa…

2024

Heterogeneous Multi-Robot Cooperation With Asynchronous Multi-Agent Reinforcement Learning

RA-L 2024

Multi-robot systems (MRSs) are becoming increasingly important in various domains. However, effective communication and coordination among multiple robots remain significant challenges. In this letter, we introduce a novel architecture for multi-robot decision-making and control based on multi-agent

Cited by 19SourceScholar
2024

K-BMPC: Derivative-based Koopman Bilinear Model Predictive Control For Tractor-trailer Trajectory Tracking With Unknown Parameters

ICRA 2024poster

Nonlinear dynamics bring difficulties to controller design for control-affine systems such as tractor-trailer vehicles, especially when the parameters in the dynamics are unknown. To address this constraint, we propose a derivative-based lifting function construction method, show that the correspond…

Cited by 2SourceScholar
2024

Leveraging Unpaired Data for Vision-Language Generative Models via Cycle Consistency

ICLR 2024spotlight

Current vision-language generative models rely on expansive corpora of $\textit{paired}$ image-text data to attain optimal performance and generalization capabilities. However, automatically collecting such data (e.g. via large-scale web scraping) leads to low quality and poor image-text correlation…

2024

Lipschitz Singularities in Diffusion Models

ICLR 2024oral

Diffusion models, which employ stochastic differential equations to sample images through integrals, have emerged as a dominant class of generative models. However, the rationality of the diffusion process itself receives limited attention, leaving the question of whether the problem is well-posed a…

Cited by 10SourcePDFScholar
2024

Parrot: Pareto-optimal Multi-Reward Reinforcement Learning Framework for Text-to-Image Generation

ECCV 2024oral

"Recent works have demonstrated that using reinforcement learning (RL) with multiple quality rewards can improve the quality of generated images in text-to-image (T2I) generation. However, manually adjusting reward weights poses challenges and may cause over-optimization in certain metrics. To solve…

Cited by 22SourcePDFScholar
2024

QKFormer: Hierarchical Spiking Transformer using Q-K Attention

NeurIPS 2024spotlight

Spiking Transformers, which integrate Spiking Neural Networks (SNNs) with Transformer architectures, have attracted significant attention due to their potential for low energy consumption and high performance. However, there remains a substantial gap in performance between SNNs and Artificial Neural…

2024

Robust and Imperceptible Commercial Camera-Screen Communication with 60Hz Refresh Rate

ICASSP 2024accepted

In this paper, we propose an innovative camera-screen communication system designed for real-time communication between 60Hz commercial screens and smartphone cameras. Firstly, we employ Color Modulation to encode information into a video, achieving flicker-free transmission imperceptible to human e…

Cited by 0SourceScholar
2024

Theoretical Study on Multi-objective Heuristic Search

IJCAI 2024poster

This paper provides a theoretical study on Multi-Objective Heuristic Search. We first classify states in the state space into must-expand, maybe-expand, and never-expand states and then transfer these definitions to nodes in the search tree. We then formalize a framework that generalizes A* to Multi…

Cited by 0SourcePDFScholar
2023

Decision Tree for Locally Private Estimation with Public Data

NeurIPS 2023poster

We propose conducting locally differentially private (LDP) estimation with the aid of a small amount of public data to enhance the performance of private estimation. Specifically, we introduce an efficient algorithm called Locally differentially Private Decision Tree (LPDT) for LDP regression. We fi…

2023

Dimensionality-Varying Diffusion Process

CVPR 2023poster

Diffusion models, which learn to reverse a signal destruction process to generate new data, typically require the signal at each step to have the same dimension. We argue that, considering the spatial redundancy in image signals, there is no need to maintain a high dimensionality in the evolution pr…

2023

Diversify Your Vision Datasets with Automatic Diffusion-based Augmentation

NeurIPS 2023poster

Many fine-grained classification tasks, like rare animal identification, have limited training data and consequently classifiers trained on these datasets often fail to generalize to variations in the domain like changes in weather or location. As such, we explore how natural language descriptions…

2023

Enhanced Training of Query-Based Object Detection via Selective Query Recollection

CVPR 2023poster

This paper investigates a phenomenon where query-based object detectors mispredict at the last decoding stage while predicting correctly at an intermediate stage. We review the training process and attribute the overlooked phenomenon to two limitations: lack of training emphasis and cascading errors…

Cited by 61SourcePDFScholar
2023

FineDance: A Fine-grained Choreography Dataset for 3D Full Body Dance Generation

ICCV 2023poster

Generating full-body and multi-genre dance sequences from given music is a challenging task, due to the limitations of existing datasets and the inherent complexity of the fine-grained hand motion and dance genres. To address these problems, we propose FineDance, which contains 14.6 hours of music-…

Cited by 58PDFcodeScholar
2023

Heuristic-Search Approaches for the Multi-Objective Shortest-Path Problem: Progress and Research Opportunities

IJCAI 2023poster

In the multi-objective shortest-path problem we are interested in computing a path, or a set of paths that simultaneously balance multiple cost functions. This problem is important for a diverse range of applications such as transporting hazardous materials considering travel distance and risk. This…

Cited by 20SourcePDFScholar
2023

MAGE: MAsked Generative Encoder To Unify Representation Learning and Image Synthesis

CVPR 2023poster

Generative modeling and representation learning are two key tasks in computer vision. However, these models are typically trained independently, which ignores the potential for each task to help the other, and leads to training and model maintenance overheads. In this work, we propose MAsked Generat…

2023

MAGVIT: Masked Generative Video Transformer

CVPR 2023highlight

We introduce the MAsked Generative VIdeo Transformer, MAGVIT, to tackle various video synthesis tasks with a single model. We introduce a 3D tokenizer to quantize a video into spatial-temporal visual tokens and propose an embedding method for masked video token modeling to facilitate multi-task lear…

2023

Multi-objective Search via Lazy and Efficient Dominance Checks

IJCAI 2023poster

Multi-objective search can be used to model many real-world problems that require finding Pareto optimal paths from a specified start state to a specified goal state, while considering different costmetrics such as distance, time, and fuel. The performance of multi-objective search can be improved b…

Cited by 12SourcePDFScholar
2023

Multilayer Subspace Learning With Self-Sparse Robustness for Two-Dimensional Feature Extraction

ICASSP 2023accepted

Two-dimensional (2D) feature extraction techniques are specifically designed for reducing the dimension of data in matrix representation. Existing methods mostly rely on bilateral projections of matrices. This rasterized manner critically limits the freedom of feature combinations, and thus degrades…

Cited by 0SourceScholar
2023

Muse: Text-To-Image Generation via Masked Generative Transformers

ICML 2023poster

We present Muse, a text-to-image Transformermodel that achieves state-of-the-art image genera-tion performance while being significantly moreefficient than diffusion or autoregressive models.Muse is trained on a masked modeling task indiscrete token space: given the text embeddingextracted from a pr…

2023

Phenaki: Variable Length Video Generation from Open Domain Textual Descriptions

ICLR 2023poster

We present Phenaki, a model capable of realistic video synthesis given a sequence of textual prompts. Generating videos from text is particularly challenging due to the computational cost, limited quantities of high quality text-video data and variable length of videos. To address these issues, we i…

Cited by 440SourcePDFScholar
2023

SVDiff: Compact Parameter Space for Diffusion Fine-Tuning

ICCV 2023poster

Recently, diffusion models have achieved remarkable success in text-to-image generation, enabling the creation of high-quality images from text prompts and various conditions. However, existing methods for customizing these models are limited by handling multiple personalized subjects and the risk o…

Cited by 271PDFScholar
2023

StoryBench: A Multifaceted Benchmark for Continuous Story Visualization

NeurIPS 2023poster

Generating video stories from text prompts is a complex task. In addition to having high visual quality, videos need to realistically adhere to a sequence of text prompts whilst being consistent throughout the frames. Creating a benchmark for video generation requires data annotated over time, which…

2023

Using Language to Extend to Unseen Domains

ICLR 2023top-25%

It is expensive to collect training data for every possible domain that a vision model may encounter when deployed. We instead consider how simply $\textit{verbalizing}$ the training domain (e.g.``photos of birds'') as well as domains we want to extend to but do not have data for (e.g.``paintings of…

2023

VQ3D: Learning a 3D-Aware Generative Model on ImageNet

ICCV 2023oral

Recent work has shown the possibility of training generative models of 3D content from 2D image collections on small datasets corresponding to a single object class, such as human faces, animal faces, or cars. However, these models struggle on larger, more complex datasets. To model diverse and unco…

Cited by 30PDFScholar
2023

Visual Prompt Tuning for Generative Transfer Learning

CVPR 2023poster

Learning generative image models from various domains efficiently needs transferring knowledge from an image synthesis model trained on a large dataset. We present a recipe for learning vision transformers by generative knowledge transfer. We base our framework on generative vision transformers repr…

2022

"Unitail: Detecting, Reading, and Matching in Retail Scene"

ECCV 2022poster

"To make full use of computer vision technology in stores, it is required to consider the actual needs that fit the characteristics of the retail scene. Pursuing this goal, we introduce the United Retail Datasets (Unitail), a large-scale benchmark of basic visual tasks on products that challenges al…

2022

BLT: Bidirectional Layout Transformer for Controllable Layout Generation

ECCV 2022poster

"Creating visual layouts is a critical step in graphic design. Automatic generation of such layouts is essential for scalable and diverse visual designs. To advance conditional layout generation, we introduce BLT, a bidirectional layout transformer. BLT differs from previous work on transformers in…

2022

CLLE: A Benchmark for Continual Language Learning Evaluation in Multilingual Machine Translation

EMNLP 2022finding

Continual Language Learning (CLL) in multilingual translation is inevitable when new languages are required to be translated. Due to the lack of unified and generalized benchmarks, the evaluation of existing methods is greatly influenced by experimental design which usually has a big gap from the in…

2022

Dimension Reduction for Efficient Dense Retrieval via Conditional Autoencoder

EMNLP 2022main

Dense retrievers encode queries and documents and map them in an embedding space using pre-trained language models. These embeddings need to be high-dimensional to fit training signals and guarantee the retrieval effectiveness of dense retrievers. However, these high-dimensional embeddings lead to l…

2022

DualPrompt: Complementary Prompting for Rehearsal-Free Continual Learning

ECCV 2022poster

"Continual learning aims at enabling a single model to learn a sequence of tasks without catastrophic forgetting. Top-performing methods usually require a rehearsal buffer to store past pristine examples for experience replay, which, however, limits their practical values due to privacy and memory c…

2022

GLOBEM Dataset: Multi-Year Datasets for Longitudinal Human Behavior Modeling Generalization

NeurIPS 2022accept

Recent research has demonstrated the capability of behavior signals captured by smartphones and wearables for longitudinal behavior modeling. However, there is a lack of a comprehensive public dataset that serves as an open testbed for fair comparison among algorithms. Moreover, prior studies mainly…

2022

Givens Coordinate Descent Methods for Rotation Matrix Learning in Trainable Embedding Indexes

ICLR 2022poster

Product quantization (PQ) coupled with a space rotation, is widely used in modern approximate nearest neighbor (ANN) search systems to significantly compress the disk storage for embeddings and speed up the inner product computation. Existing rotation learning methods, however, minimize quantization…

Cited by 6SourcePDFScholar
2022

Lane Detection Transformer Based on Multi-Frame Horizontal and Vertical Attention and Visual Transformer Module

ECCV 2022poster

"Lane detection requires adequate global information due to the simplicity of lane line features and changeable road scenes. In this paper, we propose a novel lane detection Transformer based on multi-frame input to regress the parameters of lanes under a lane shape modeling. We design a Multi-frame…

2022

Learning Instance-Specific Adaptation for Cross-Domain Segmentation

ECCV 2022poster

"We propose a test-time adaptation method for cross-domain image segmentation. Our method is simple: Given a new unseen instance at the test time, we adapt a pre-trained model by conducting instance-specific BatchNorm (statistics) calibration. Our approach has two core components. First, we replace…

Cited by 16SourcePDFScholar
2022

Learning To Prompt for Continual Learning

CVPR 2022poster

The mainstream paradigm behind continual learning has been to adapt the model parameters to non-stationary data distributions, where catastrophic forgetting is the central challenge. Typical methods rely on a rehearsal buffer or known task identity at test time to retrieve learned knowledge and addr…

Cited by 979PDFcodeScholar
2022

MAXIM: Multi-Axis MLP for Image Processing

CVPR 2022oral

Recent progress on Transformers and multi-layer perceptron (MLP) models provide new network architectural designs for computer vision tasks. Although these models proved to be effective in many vision tasks such as image recognition, there remain challenges in adapting them for low-level vision. The…

Cited by 624PDFcodeScholar
2022

MaxViT: Multi-axis Vision Transformer

ECCV 2022poster

"Transformers have recently gained significant attention in the computer vision community. However, the lack of scalability of self-attention mechanisms with respect to image size has limited their wide adoption in state-of-the-art vision backbones. In this paper we introduce an efficient and scalab…

2022

Nested Hierarchical Transformer: Towards Accurate, Data-Efficient and Interpretable Visual Understanding

AAAI 2022technical

Hierarchical structures are popular in recent vision transformers, however, they require sophisticated designs and massive datasets to work well. In this paper, we explore the idea of nesting basic local transformers on non-overlapping image blocks and aggregating them in a hierarchical way. We find…

2022

Powering Finetuning in Few-Shot Learning: Domain-Agnostic Bias Reduction with Selected Sampling

AAAI 2022technical

In recent works, utilizing a deep network trained on meta-training set serves as a strong baseline in few-shot learning. In this paper, we move forward to refine novel-class features by finetuning a trained deep network. Finetuning is designed to focus on reducing biases in novel-class feature distr…

Cited by 21SourcePDFScholar
2022

Vector-quantized Image Modeling with Improved VQGAN

ICLR 2022poster

Pretraining language models with next-token prediction on massive text corpora has delivered phenomenal zero-shot, few-shot, transfer learning and multi-tasking capabilities on both generative and discriminative language tasks. Motivated by this success, we explore a Vector-quantized Image Modeling…

Cited by 575SourcePDFScholar
2022

ViTGAN: Training GANs with Vision Transformers

ICLR 2022spotlight

Recently, Vision Transformers (ViTs) have shown competitive performance on image recognition while requiring less vision-specific inductive biases. In this paper, we investigate if such performance can be extended to image generation. To this end, we integrate the ViT architecture into generative ad…

2021

Cross-Modal Contrastive Learning for Text-to-Image Generation

CVPR 2021poster

The output of text-to-image synthesis systems should be coherent, clear, photo-realistic scenes with high semantic fidelity to their conditioned text descriptions. Our Cross-Modal Contrastive Generative Adversarial Network (XMC-GAN) addresses this challenge by maximizing the mutual information betwe…

Cited by 434PDFcodeScholar
2021

ERNIE-Gram: Pre-Training with Explicitly N-Gram Masked Language Modeling for Natural Language Understanding

NAACL 2021long

Coarse-grained linguistic information, such as named entities or phrases, facilitates adequately representation learning in pre-training. Previous works mainly focus on extending the objective of BERT’s Masked Language Modeling (MLM) from masking individual tokens to contiguous sequences of n tokens…

2021

Improved Consistency Regularization for GANs

AAAI 2021technical

Recent work has increased the performance of Generative Adversarial Networks (GANs) by enforcing a consistency cost on the discriminator. We improve on this technique in several ways. We first show that consistency regularization can introduce artifacts into the GAN samples and explain how to fix th…

2021

Improved Transformer for High-Resolution GANs

NeurIPS 2021poster

Attention-based models, exemplified by the Transformer, can effectively model long range dependency, but suffer from the quadratic complexity of self-attention operation, making them difficult to be adopted for high-resolution image generation based on Generative Adversarial Networks (GANs). In this…

2021

PseudoSeg: Designing Pseudo Labels for Semantic Segmentation

ICLR 2021poster

Recent advances in semi-supervised learning (SSL) demonstrate that a combination of consistency regularization and pseudo-labeling can effectively improve image classification accuracy in the low-data regime. Compared to classification, semantic segmentation tasks require much more intensive labelin…

2021

Revisiting Hierarchical Approach for Persistent Long-Term Video Prediction

ICLR 2021poster

Learning to predict the long-term future of video frames is notoriously challenging due to the inherent ambiguities in a distant future and dramatic amplification of prediction error over time. Despite the recent advances in the literature, existing approaches are limited to moderately short-term pr…

2020

Approximation Capabilities of Neural ODEs and Invertible Residual Networks

ICML 2020poster

Recent interest in invertible models and normalizing flows has resulted in new architectures that ensure invertibility of the network model. Neural ODEs and i-ResNets are two recent techniques for constructing models that are invertible, but it is unclear if they can be used to approximate any conti…

Cited by 116SourcePDFScholar
2020

Distilling Effective Supervision From Severe Label Noise

CVPR 2020poster

Collecting large-scale data with clean labels for supervised training of neural networks is practically challenging. Although noisy labels are usually cheap to acquire, existing methods suffer a lot from label noise. This paper targets at the challenge of robust training at high label noise regimes.…

Cited by 174PDFcodeScholar
2020

ERNIE-GEN: An Enhanced Multi-Flow Pre-training and Fine-tuning Framework for Natural Language Generation

IJCAI 2020poster

Current pre-training works in natural language generation pay little attention to the problem of exposure bias on downstream tasks. To address this issue, we propose an enhanced multi-flow sequence to sequence pre-training and fine-tuning framework named ERNIE-GEN, which bridges the discrepancy betw…

2020

FixMatch: Simplifying Semi-Supervised Learning with Consistency and Confidence

NeurIPS 2020poster

Semi-supervised learning (SSL) provides an effective means of leveraging unlabeled data to improve a model’s performance. This domain has seen fast progress recently, at the cost of requiring more complex methods. In this paper we propose FixMatch, an algorithm that is a significant simplification o…

2020

ReMixMatch: Semi-Supervised Learning with Distribution Matching and Augmentation Anchoring

ICLR 2020poster

We improve the recently-proposed ``MixMatch semi-supervised learning algorithm by introducing two new techniques: distribution alignment and augmentation anchoring. - Distribution alignment encourages the marginal distribution of predictions on unlabeled data to be close to the marginal distribution…

Cited by 0SourcecodeScholar
2020

Small-GAN: Speeding up GAN Training using Core-Sets

ICML 2020poster

Recent work suggests that Generative Adversarial Networks (GANs) benefit disproportionately from large mini-batch sizes. This finding is interesting but also discouraging – large batch sizes are slow and expensive to emulate on conventional hardware. Thus, it would be nice if there were some trick b…

Cited by 100SourcePDFScholar
2020

Solving Missing-Annotation Object Detection with Background Recalibration Loss

ICASSP 2020accepted

This paper focuses on a novel and challenging detection scenario: A majority of true objects/instances is unlabeled in the datasets, so these missing-labeled areas will be regarded as the background during training. Previous art [1] on this problem has proposed to use soft sampling to re-weight the…

Cited by 0SourceScholar
2020

Your Local GAN: Designing Two Dimensional Local Attention Mechanisms for Generative Models

CVPR 2020poster

We introduce a new local sparse attention layer that preserves two-dimensional geometry and locality. We show that by just replacing the dense attention layer of SAGAN with our construction, we obtain very significant FID, Inception score and pure visual improvements. FID score is improved from 18.6…

Cited by 84PDFcodeScholar
2019

Self-Attention Generative Adversarial Networks

ICML 2019oral

In this paper, we propose the Self-Attention Generative Adversarial Network (SAGAN) which allows attention-driven, long-range dependency modeling for image generation tasks. Traditional convolutional GANs generate high-resolution details as a function of only spatially local points in lower-resoluti…

2018

A Generalized Uncorrelated Ridge Regression with Nonnegative Labels for Unsupervised Feature Selection

ICASSP 2018accepted

The ridge regression has been widely applied in multiple domains and gains the promising performance. However, due to the unavailability of labels, the ridge regression easily incurs the trivial solution towards unsupervised learning. In this paper, we investigate unsupervised feature selection by v…

Cited by 0SourceScholar
2018

AttnGAN: Fine-Grained Text to Image Generation With Attentional Generative Adversarial Networks

CVPR 2018poster

In this paper, we propose an Attentional Generative Adversarial Network (AttnGAN) that allows attention-driven, multi-stage refinement for fine-grained text-to-image generation. With a novel attentional generative network, the AttnGAN can synthesize fine-grained details at different sub-regions of…

2017

CSMA/CA-based electrocommunication system design for underwater robot groups

IROS 2017poster

Underwater communication is particularly challenging for small submarine robots that have limited power and size constraints. Inspired by weakly electric fish, a novel electric current communication (termed electrocommunication) system has been developed for small underwater robots in our previous s…

Cited by 17SourceScholar
2017

Link the Head to the "Beak": Zero Shot Learning From Noisy Text Description at Part Precision

CVPR 2017poster

In this paper, we study learning visual classifiers from unstructured text description at part precision with no training images. We show that visual text terms can be encouraged to attend to its relevant parts, while image connections to non-visual text terms vanishes without any supervision. Thi…

Cited by 158PDFScholar
2017

StackGAN: Text to Photo-Realistic Image Synthesis With Stacked Generative Adversarial Networks

ICCV 2017oral

Synthesizing high-quality images from text descriptions is a challenging problem in computer vision and has many practical applications. Samples generated by existing text-to-image approaches can roughly reflect the meaning of the given descriptions, but they fail to contain necessary details and vi…

Cited by 2957PDFcodeScholar
2016

SPDA-CNN: Unifying Semantic Part Detection and Abstraction for Fine-Grained Recognition

CVPR 2016poster

Most convolutional neural networks (CNNs) lack midlevel layers that model semantic parts of objects. This limits CNN-based methods from reaching their full potential in detecting and utilizing small semantic parts in recognition. Introducing such mid-level layers can facilitate the extraction of par…

Cited by 382PDFScholar