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Deli Zhao

65 accepted papers

2026

GP3: A 3D Geometry-Aware Policy with Multi-View Images for Robotic Manipulation

ICRA 2026poster

Effective robotic manipulation relies on a precise understanding of 3D scene geometry, and one of the most straightforward ways to acquire such geometry is through multi-view observations. Motivated by this, we present GP3—a 3D geometry-aware robotic manipulation policy that leverages multi-view inp…

2026

High-Fidelity Simulated Data Generation for Real-World Zero-Shot Robotic Manipulation Learning With Gaussian Splatting

RA-L 2026

The scalability of robotic learning is fundamentally bottlenecked by the significant cost and labor of real-world data collection. While simulated data offers a scalable alternative, it often fails to generalize to the real world due to significant gaps in visual appearance, physical properties, and

Cited by 7SourceScholar
2026

On the Generalization Capacities of MLLMs for Spatial Intelligence

ICLR 2026oral

Multimodal Large Language Models (MLLMs) that directly process RGB inputs for tasks like 3D localization and navigation have shown remarkable potential. However, we argue that these ``RGB-only'' approaches are fundamentally flawed in their ability to generalize across cameras. By ignoring camera par…

Cited by 0SourcecodeScholar
2026

RynnVLA-001: Using Human Demonstrations to Improve Robot Manipulation

ICRA 2026poster

This paper presents RynnVLA-001, a vision-language-action (VLA) model built upon large-scale video generative pretraining from human demonstrations. We propose a novel two-stage pretraining methodology. The first stage, Ego-Centric Video Generative Pretraining, trains an Image-to-Video model to pred…

2026

STAR-R1: Multi-View Spatial TrAnsformation Reasoning by Reinforcing Multimodal LLMs

CVPR 2026

Multimodal Large Language Models (MLLMs) remain far from human-level performance in multi-view spatial reasoning, where models must establish object correspondences across view and infer coherent scene semantics. We analyze this limitation through the Transformation-Driven Visual Reasoning (TVR) tas

Cited by 0SourcecodeScholar
2026

Towards Affordance-Aware Robotic Dexterous Grasping with Human-like Priors

AAAI 2026technical

A dexterous hand capable of generalizable grasping objects is fundamental for the development of general-purpose embodied AI. However, previous methods focus narrowly on low-level grasp stability metrics, neglecting affordance-aware positioning and human-like poses which are crucial for downstream m

Cited by 0SourcePDFScholar
2025

2.5 Years in Class: A Multimodal Textbook for Vision-Language Pretraining

ICCV 2025poster

Compared to image-text pair data, interleaved corpora enable Vision-Language Models (VLMs) to understand the world more naturally like humans. However, such existing datasets are crawled from webpage, facing challenges like low knowledge density, loose image-text relations, and poor logical coherenc…

2025

Auto-Arena: Automating LLM Evaluations with Agent Peer Battles and Committee Discussions

ACL 2025long

As LLMs continuously evolve, there is an urgent need for a reliable evaluation method that delivers trustworthy results promptly. Currently, static benchmarks suffer from inflexibility and unreliability, leading users to prefer human voting platforms like Chatbot Arena. However, human evaluations re…

2025

Breaking the Memory Barrier of Contrastive Loss via Tile-Based Strategy

CVPR 2025highlight

Contrastive loss is a powerful approach for representation learning, where larger batch sizes enhance performance by providing more negative samples to better distinguish between similar and dissimilar data. However, the full instantiation of the similarity matrix demands substantial GPU memory, mak…

2025

Chain of Ideas: Revolutionizing Research Via Novel Idea Development with LLM Agents

EMNLP 2025

Research ideation is crucial for scientific progress, but the exponential increase in scientific literature makes it challenging to stay updated and identify impactful directions. Recent developments in large language models(LLMs) offer a promising avenue to automate this process. However, existing

2025

CirT: Global Subseasonal-to-Seasonal Forecasting with Geometry-inspired Transformer

ICLR 2025poster

Accurate Subseasonal-to-Seasonal (S2S) climate forecasting is pivotal for decision-making including agriculture planning and disaster preparedness but is known to be challenging due to its chaotic nature. Although recent data-driven models have shown promising results, their performance is limited b…

2025

EOC-Bench: Can MLLMs Identify, Recall, and Forecast Objects in an Egocentric World?

NeurIPS 2025poster

The emergence of multimodal large language models (MLLMs) has driven breakthroughs in egocentric vision applications. These applications necessitate persistent, context-aware understanding of objects, as users interact with tools in dynamic and cluttered environments. However, existing embodied ben…

Cited by 0SourceScholar
2025

FineReason: Evaluating and Improving LLMs’ Deliberate Reasoning through Reflective Puzzle Solving

ACL 2025long

Many challenging reasoning tasks require not just rapid, intuitive responses, but a more deliberate, multi-step approach. Recent progress in large language models (LLMs) highlights an important shift from the “System 1” way of quick reactions to the “System 2” style of reflection-and-correction prob…

2025

GeoPQA: Bridging the Visual Perception Gap in MLLMs for Geometric Reasoning

EMNLP 2025

Recent advancements in reinforcement learning (RL) have enhanced the reasoning abilities of large language models (LLMs), yet the impact on multimodal LLMs (MLLMs) is limited. Particularly in vision-intensive tasks like geometric reasoning, MLLMs hallucinate frequently, leading to inaccurate reasoni

2025

Large Language-Geometry Model: When LLM meets Equivariance

ICML 2025poster

Accurately predicting 3D structures and dynamics of physical systems is crucial in scientific applications. Existing approaches that rely on geometric Graph Neural Networks (GNNs) effectively enforce $\mathrm{E}(3)$-equivariance, but they often fail in leveraging extensive broader information. While…

Cited by 4SourcePDFScholar
2025

MolSpectra: Pre-training 3D Molecular Representation with Multi-modal Energy Spectra

ICLR 2025poster

Establishing the relationship between 3D structures and the energy states of molecular systems has proven to be a promising approach for learning 3D molecular representations. However, existing methods are limited to modeling the molecular energy states from classical mechanics. This limitation resu…

2025

Non-stationary Equivariant Graph Neural Networks for Physical Dynamics Simulation

NeurIPS 2025poster

To enhance the generalization ability of graph neural networks (GNNs) in learning and simulation physical dynamics, a series of equivariant GNNs have been developed to incorporate the symmetric inductive bias. However, the existing methods do not take into account the non-stationarity nature of phys…

Cited by 0SourcecodeScholar
2025

ReasonMed: A 370K Multi-Agent Generated Dataset for Advancing Medical Reasoning

EMNLP 2025

Reasoning-based large language models have excelled in mathematics and programming, yet their potential in knowledge-intensive medical question answering remains underexplored and insufficiently validated in clinical contexts. To bridge this gap, we introduce ReasonMed , the largest medical reasonin

2025

The Curse of Multi-Modalities: Evaluating Hallucinations of Large Multimodal Models across Language, Visual, and Audio

NeurIPS 2025poster

Recent advancements in large multimodal models (LMMs) have significantly enhanced performance across diverse tasks, with ongoing efforts to further integrate additional modalities such as video and audio. However, most existing LMMs remain vulnerable to hallucinations, the discrepancy between the fa…

Cited by 0SourcecodeScholar
2025

Towards Scalable Spatial Intelligence via 2D-to-3D Data Lifting

ICCV 2025poster

Spatial intelligence is emerging as a transformative frontier in AI, yet it remains constrained by the scarcity of large-scale 3D datasets. Unlike the abundant 2D imagery, acquiring 3D data typically requires specialized sensors and laborious annotation. In this work, we present a scalable pipeline…

2025

Universally Invariant Learning in Equivariant GNNs

NeurIPS 2025poster

Equivariant Graph Neural Networks (GNNs) have demonstrated significant success across various applications. To achieve completeness---that is, the universal approximation property over the space of equivariant functions---the network must effectively capture the intricate multi-body interactions amo…

Cited by 0SourceScholar
2025

VideoRefer Suite: Advancing Spatial-Temporal Object Understanding with Video LLM

CVPR 2025poster

Video Large Language Models (Video LLMs) have recently exhibited remarkable capabilities in general video understanding.However, they mainly focus on holistic comprehension and struggle with capturing fine-grained spatial and temporal details. Besides, the lack of high-quality object-level video ins…

2024

AnyDoor: Zero-shot Object-level Image Customization

CVPR 2024poster

This work presents AnyDoor a diffusion-based image generator with the power to teleport target objects to new scenes at user-specified locations with desired shapes. Instead of tuning parameters for each object our model is trained only once and effortlessly generalizes to diverse object-scene combi…

Cited by 268SourcePDFScholar
2024

Latent Space Editing in Transformer-Based Flow Matching

AAAI 2024technical

This paper strives for image editing via generative models. Flow Matching is an emerging generative modeling technique that offers the advantage of simple and efficient training. Simultaneously, a new transformer-based U-ViT has recently been proposed to replace the commonly used UNet for better sca…

Cited by 31SourcePDFScholar
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

Towards More Accurate Diffusion Model Acceleration with A Timestep Tuner

CVPR 2024poster

A diffusion model which is formulated to produce an image using thousands of denoising steps usually suffers from a slow inference speed. Existing acceleration algorithms simplify the sampling by skipping most steps yet exhibit considerable performance degradation. By viewing the generation of diffu…

2024

UKnow: A Unified Knowledge Protocol with Multimodal Knowledge Graph Datasets for Reasoning and Vision-Language Pre-Training

NeurIPS 2024poster

This work presents a unified knowledge protocol, called UKnow, which facilitates knowledge-based studies from the perspective of data. Particularly focusing on visual and linguistic modalities, we categorize data knowledge into five unit types, namely, in-image, in-text, cross-image, cross-text, and…

Cited by 0SourcePDFScholar
2023

Composer: Creative and Controllable Image Synthesis with Composable Conditions

ICML 2023poster

Recent large-scale generative models learned on big data are capable of synthesizing incredible images yet suffer from limited controllability. This work offers a new generation paradigm that allows flexible control of the output image, such as spatial layout and palette, while maintaining the synth…

2023

Cones: Concept Neurons in Diffusion Models for Customized Generation

ICML 2023oral

Human brains respond to semantic features of presented stimuli with different neurons. This raises the question of whether deep neural networks admit a similar behavior pattern. To investigate this phenomenon, this paper identifies a small cluster of neurons associated with a specific subject in a d…

Cited by 119SourcePDFScholar
2023

Customizable Image Synthesis with Multiple Subjects

NeurIPS 2023poster

Synthesizing images with user-specified subjects has received growing attention due to its practical applications. Despite the recent success in single subject customization, existing algorithms suffer from high training cost and low success rate along with increased number of subjects. Towards cont…

Cited by 84SourcePDFScholar
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

Disentangling Spatial and Temporal Learning for Efficient Image-to-Video Transfer Learning

ICCV 2023poster

Recently, large-scale pre-trained language-image models like CLIP have shown extraordinary capabilities for understanding spatial contents, but naively transferring such models to video recognition still suffers from unsatisfactory temporal modelling capabilities. Existing methods insert tunable str…

Cited by 29PDFcodeScholar
2023

Efficient-VQGAN: Towards High-Resolution Image Generation with Efficient Vision Transformers

ICCV 2023poster

Vector-quantized image modeling has shown great potential in synthesizing high-quality images. However, generating high-resolution images remains a challenging task due to the quadratic computational overhead of the self-attention process. In this study, we seek to explore a more efficient two-stage…

Cited by 22PDFScholar
2023

FaceComposer: A Unified Model for Versatile Facial Content Creation

NeurIPS 2023poster

This work presents FaceComposer, a unified generative model that accomplishes a variety of facial content creation tasks, including text-conditioned face synthesis, text-guided face editing, face animation etc. Based on the latent diffusion framework, FaceComposer follows the paradigm of composition…

Cited by 8SourcePDFScholar
2023

LinkGAN: Linking GAN Latents to Pixels for Controllable Image Synthesis

ICCV 2023poster

This work presents an easy-to-use regularizer for GAN training, which helps explicitly link some axes of the latent space to a set of pixels in the synthesized image. Establishing such a connection facilitates a more convenient local control of GAN generation, where users can alter the image content…

Cited by 30PDFScholar
2023

LipFormer: High-Fidelity and Generalizable Talking Face Generation With a Pre-Learned Facial Codebook

CVPR 2023poster

Generating a talking face video from the input audio sequence is a practical yet challenging task. Most existing methods either fail to capture fine facial details or need to train a specific model for each identity. We argue that a codebook pre-learned on high-quality face images can serve as a use…

Cited by 36SourcePDFScholar
2023

MoLo: Motion-Augmented Long-Short Contrastive Learning for Few-Shot Action Recognition

CVPR 2023poster

Current state-of-the-art approaches for few-shot action recognition achieve promising performance by conducting frame-level matching on learned visual features. However, they generally suffer from two limitations: i) the matching procedure between local frames tends to be inaccurate due to the lack…

2023

MomentDiff: Generative Video Moment Retrieval from Random to Real

NeurIPS 2023poster

Video moment retrieval pursues an efficient and generalized solution to identify the specific temporal segments within an untrimmed video that correspond to a given language description. To achieve this goal, we provide a generative diffusion-based framework called MomentDiff, which simulates a typi…

2023

Neural Dependencies Emerging From Learning Massive Categories

CVPR 2023poster

This work presents two astonishing findings on neural networks learned for large-scale image classification. 1) Given a well-trained model, the logits predicted for some category can be directly obtained by linearly combining the predictions of a few other categories, which we call neural dependency…

2023

Progressive Spatio-Temporal Prototype Matching for Text-Video Retrieval

ICCV 2023oral

The performance of text-video retrieval has been significantly improved by vision-language cross-modal learning schemes. The typical solution is to directly align the global video-level and sentence-level features during learning, which would ignore the intrinsic video-text relations, i.e., a text…

Cited by 46PDFcodeScholar
2023

RA-CLIP: Retrieval Augmented Contrastive Language-Image Pre-Training

CVPR 2023poster

Contrastive Language-Image Pre-training (CLIP) is attracting increasing attention for its impressive zero-shot recognition performance on different down-stream tasks. However, training CLIP is data-hungry and requires lots of image-text pairs to memorize various semantic concepts. In this paper, we…

Cited by 38SourcePDFScholar
2023

RLEG: Vision-Language Representation Learning with Diffusion-based Embedding Generation

ICML 2023poster

Vision-language representation learning models (e.g., CLIP) have achieved state-of-the-art performance on various downstream tasks, which usually need large-scale training data to learn discriminative representation. Recent progress on generative diffusion models (e.g., DALL-E 2) has demonstrated th…

Cited by 12SourcePDFScholar
2023

RLIPv2: Fast Scaling of Relational Language-Image Pre-Training

ICCV 2023poster

Relational Language-Image Pre-training (RLIP) aims to align vision representations with relational texts, thereby advancing the capability of relational reasoning in computer vision tasks. However, hindered by the slow convergence of RLIPv1 architecture and the limited availability of existing scene…

Cited by 47PDFcodeScholar
2023

Regularized Mask Tuning: Uncovering Hidden Knowledge in Pre-Trained Vision-Language Models

ICCV 2023poster

Prompt tuning and adapter tuning have shown great potential in transferring pre-trained vision-language models (VLMs) to various downstream tasks. In this work, we design a new type of tuning method, termed as regularized mask tuning, which masks the network parameters through a learnable selection.…

Cited by 12PDFScholar
2023

Res-Tuning: A Flexible and Efficient Tuning Paradigm via Unbinding Tuner from Backbone

NeurIPS 2023poster

Parameter-efficient tuning has become a trend in transferring large-scale foundation models to downstream applications. Existing methods typically embed some light-weight tuners into the backbone, where both the design and the learning of the tuners are highly dependent on the base model. This work…

2023

Scanning Only Once: An End-to-end Framework for Fast Temporal Grounding in Long Videos

ICCV 2023poster

Video temporal grounding aims to pinpoint a video segment that matches the query description. Despite the recent advance in short-form videos (e.g., in minutes), temporal grounding in long videos (e.g., in hours) is still at its early stage. To address this challenge, a common practice is to employ…

Cited by 18PDFcodeScholar
2023

Self-Organizing Pathway Expansion for Non-Exemplar Class-Incremental Learning

ICCV 2023poster

Non-exemplar class-incremental learning aims to recognize both the old and new classes without access to old class samples. The conflict between old and new class optimization is exacerbated since the shared neural pathways can only be differentiated by the incremental samples. To address this probl…

Cited by 12PDFScholar
2023

Space-time Prompting for Video Class-incremental Learning

ICCV 2023oral

Recently, prompt-based learning has made impressive progress on image class-incremental learning, but it still lacks sufficient exploration in the video domain. In this paper, we will fill this gap by learning multiple prompts based on a powerful image-language pre-trained model, i.e., CLIP, making…

Cited by 11PDFScholar
2023

The Devil is in the Wrongly-classified Samples: Towards Unified Open-set Recognition

ICLR 2023poster

Open-set Recognition (OSR) aims to identify test samples whose classes are not seen during the training process. Recently, Unified Open-set Recognition (UOSR) has been proposed to reject not only unknown samples but also known but wrongly classified samples, which tends to be more practical in real-…

2023

ViM: Vision Middleware for Unified Downstream Transferring

ICCV 2023poster

Foundation models are pre-trained on massive data and transferred to downstream tasks via fine-tuning. This work presents Vision Middleware (ViM), a new learning paradigm that targets unified transferring from a single foundation model to a variety of downstream tasks. ViM consists of a zoo of light…

Cited by 1PDFScholar
2023

VideoComposer: Compositional Video Synthesis with Motion Controllability

NeurIPS 2023poster

The pursuit of controllability as a higher standard of visual content creation has yielded remarkable progress in customizable image synthesis. However, achieving controllable video synthesis remains challenging due to the large variation of temporal dynamics and the requirement of cross-frame tempo…

2022

Improving 3D-aware Image Synthesis with A Geometry-aware Discriminator

NeurIPS 2022accept

3D-aware image synthesis aims at learning a generative model that can render photo-realistic 2D images while capturing decent underlying 3D shapes. A popular solution is to adopt the generative adversarial network (GAN) and replace the generator with a 3D renderer, where volume rendering with neural…

2022

Improving GANs with A Dynamic Discriminator

NeurIPS 2022accept

Discriminator plays a vital role in training generative adversarial networks (GANs) via distinguishing real and synthesized samples. While the real data distribution remains the same, the synthesis distribution keeps varying because of the evolving generator, and thus effects a corresponding change…

Cited by 30SourcePDFScholar
2022

Principled Knowledge Extrapolation with GANs

ICML 2022spotlight

Human can extrapolate well, generalize daily knowledge into unseen scenarios, raise and answer counterfactual questions. To imitate this ability via generative models, previous works have extensively studied explicitly encoding Structural Causal Models (SCMs) into architectures of generator networks…

2022

Rank Diminishing in Deep Neural Networks

NeurIPS 2022accept

The rank of neural networks measures information flowing across layers. It is an instance of a key structural condition that applies across broad domains of machine learning. In particular, the assumption of low-rank feature representations led to algorithmic developments in many architectures. For…

2022

Region-Based Semantic Factorization in GANs

ICML 2022spotlight

Despite the rapid advancement of semantic discovery in the latent space of Generative Adversarial Networks (GANs), existing approaches either are limited to finding global attributes or rely on a number of segmentation masks to identify local attributes. In this work, we present a highly efficient a…

2022

Weakly Supervised High-Fidelity Clothing Model Generation

CVPR 2022poster

The development of online economics arouses the demand of generating images of models on product clothes, to display new clothes and promote sales. However, the expensive proprietary model images challenge the existing image virtual try-on methods in this scenario, as most of them need to be trained…

Cited by 8PDFcodeScholar
2021

Low-Rank Subspaces in GANs

NeurIPS 2021poster

The latent space of a Generative Adversarial Network (GAN) has been shown to encode rich semantics within some subspaces. To identify these subspaces, researchers typically analyze the statistical information from a collection of synthesized data, and the identified subspaces tend to control image a…

2021

Uncertainty Principles of Encoding GANs

ICML 2021spotlight

The compelling synthesis results of Generative Adversarial Networks (GANs) demonstrate rich semantic knowledge in their latent codes. To obtain this knowledge for downstream applications, encoding GANs has been proposed to learn encoders, such that real world data can be encoded to latent codes, whi…

Cited by 8SourcePDFScholar
2018

DeepExposure: Learning to Expose Photos with Asynchronously Reinforced Adversarial Learning

NeurIPS 2018poster

The accurate exposure is the key of capturing high-quality photos in computational photography, especially for mobile phones that are limited by sizes of camera modules. Inspired by luminosity masks usually applied by professional photographers, in this paper, we develop a novel algorithm for learni…

Cited by 116SourcePDFScholar
2016

Sparse Coding and Dictionary Learning With Linear Dynamical Systems

CVPR 2016oral

Linear Dynamical Systems (LDSs) are the fundamental tools for encoding spatio-temporal data in various disciplines. To enhance the performance of LDSs, in this paper, we address the challenging issue of performing sparse coding on the space of LDSs, where both data and dictionary atoms are LDSs. Rat…

Cited by 38PDFScholar
2015

A New Retraction for Accelerating the Riemannian Three-Factor Low-Rank Matrix Completion Algorithm

CVPR 2015poster

The Riemannian three-factor matrix completion (R3MC) algorithm is one of the state-of-the-art geometric optimization methods for the low-rank matrix completion problem. It is a nonlinear conjugate-gradient method optimizing on a quotient Riemannian manifold. In the line search step, R3MC approximate…

Cited by 10SourcePDFScholar