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Weijia Li

36 accepted papers

2026

CLAM-Bench: Benchmarking LLM Agents for Library-Scale Cross-Architecture Migration

ICML 2026poster

Cross-architecture migration of high-performance libraries dictates ecosystem readiness on emerging hardware. The challenge is twofold: disentangling library-scale dependencies and performance-critical kernels with ISA-specific SIMD intrinsics, often trading migration speed for peak performance. Whi…

Cited by 0SourceScholar
2026

Earth-Agent: Unlocking the Full Landscape of Earth Observation with Agents

ICLR 2026poster

Earth observation (EO) is essential for understanding the evolving states of the Earth system. Although recent MLLMs have advanced EO research, they still lack the capability to tackle complex tasks that require multi-step reasoning and the use of domain-specific tools. Agent-based methods offer a…

Cited by 0SourcecodeScholar
2026

MajutsuCity: Language-driven Aesthetic-adaptive City Generation with Controllable 3D Assets and Layouts

CVPR 2026

Generating realistic 3D cities is fundamental to world models, virtual reality, and game development, where an ideal urban scene must satisfy both stylistic diversity, fine-grained, and controllability. However, existing methods struggle to balance the creative flexibility offered by text-based gene

Cited by 0SourcecodeScholar
2026

OmniAID: Decoupling Semantic and Artifacts for Universal AI-Generated Image Detection in the Wild

ICML 2026poster

A truly universal AI-Generated Image (AIGI) detector must simultaneously generalize across diverse generative models and varied semantic content. Current state-of-the-art methods learn a single, entangled forgery representation, conflating content-dependent flaws with content-agnostic artifacts, and…

Cited by 0SourceScholar
2026

OmniDocLayout: Towards Diverse Document Layout Generation via Coarse-to-Fine LLM Learning

CVPR 2026

Document AI has advanced rapidly and is attracting increasing attention. Yet, while most efforts have focused on document layout analysis (DLA), its generative counterpart, layout generation, remains underexplored. Distinct from traditional graphic layout design and room layout planning, document la

Cited by 0SourcecodeScholar
2026

Prune2Drive: A Plug-and-Play Framework for Accelerating Vision-Language Models in Autonomous Driving

CVPR 2026

Vision-Language Models (VLMs) have emerged as a promising paradigm in autonomous driving (AD), providing a unified framework for perception and decisionmaking. However, their real-world deployment is hindered by significant computational overhead when processing high-resolution, multi-view images. T

Cited by 0SourcecodeScholar
2026

The Devil behind the mask: An emergent safety vulnerability of Diffusion LLMs

ICLR 2026poster

Diffusion-based large language models (dLLMs) have recently emerged as a powerful alternative to autoregressive LLMs, offering faster inference and greater interactivity via parallel decoding and bidirectional modeling. However, despite strong performance in code generation and text infilling, we i…

Cited by 0SourcecodeScholar
2026

UniMERNet: A Universal Network for Real-World Mathematical Expression Recognition

CVPR 2026

This paper introduces UniMERNet, a high-accuracy, computation-efficient algorithm for Mathematical Expression Recognition (MER) across diverse real-world scenarios. To facilitate UniMERNet's training, we constructed UniMER-1M, a million-scale dataset whose unprecedented diversity endows the model wi

Cited by 0SourcecodeScholar
2026

UrbanFeel:A Comprehensive Benchmark for Temporal and Perceptual Understanding of City Scenes through Human Perspective

ICLR 2026poster

Urban development impacts over half of the global population, making human-centered understanding of its structural and perceptual changes essential for smart city planning. While Multimodal Large Language Models (MLLMs) have shown remarkable capabilities across various domains, existing benchmarks…

Cited by 0SourcecodeScholar
2026

V2U4Real: A Real-world Large-scale Dataset for Vehicle-to-UAV Cooperative Perception

CVPR 2026

Modern autonomous vehicle perception systems are often constrained by occlusions, blind spots, and limited sensing range. While existing cooperative perception paradigms, such as Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I), have demonstrated their effectiveness in mitigating these c

Cited by 0SourcecodeScholar
2025

BLINK-Twice: You see, but do you observe? A Reasoning Benchmark on Visual Perception

NeurIPS 2025poster

Recently, Multimodal Large Language Models (MLLMs) have made rapid progress, particularly in enhancing their reasoning capabilities. However, existing reasoning benchmarks still primarily assess language-based reasoning, often treating visual input as replaceable context. To address this gap, we int…

Cited by 0SourcecodeScholar
2025

Can Large Multimodal Models Understand Agricultural Scenes? Benchmarking with AgroMind

NeurIPS 2025poster

Large Multimodal Models (LMMs) has demonstrated capabilities across various domains, but comprehensive benchmarks for agricultural remote sensing (RS) remain scarce. Existing benchmarks designed for agricultural RS scenarios exhibit notable limitations, primarily in terms of insufficient scene diver…

Cited by 0SourcecodeScholar
2025

Efficient Multi-modal Large Language Models via Progressive Consistency Distillation

NeurIPS 2025poster

Visual tokens consume substantial computational resources in multi-modal large models (MLLMs), significantly compromising their efficiency. Recent works have attempted to improve efficiency by compressing visual tokens during training, either through modifications to model components or by introduci…

Cited by 0SourceScholar
2025

LEGION: Learning to Ground and Explain for Synthetic Image Detection

ICCV 2025poster

The rapid advancements in generative technology have emerged as a double-edged sword. While offering powerful tools that enhance convenience, they also pose significant social concerns. As defenders, current synthetic image detection methods often lack artifact-level textual interpretability and are…

2025

LOKI: A Comprehensive Synthetic Data Detection Benchmark using Large Multimodal Models

ICLR 2025spotlight

With the rapid development of AI-generated content, the future internet may be inundated with synthetic data, making the discrimination of authentic and credible multimodal data increasingly challenging. Synthetic data detection has thus garnered widespread attention, and the performance of large mu…

2025

Leveraging BEV Paradigm for Ground-to-Aerial Image Synthesis

ICCV 2025poster

Ground-to-aerial image synthesis focuses on generating realistic aerial images from corresponding ground street view images while maintaining consistent content layout, simulating a top-down view. The significant viewpoint difference leads to domain gaps between views, and dense urban scenes limit t…

2025

Scene4U: Hierarchical Layered 3D Scene Reconstruction from Single Panoramic Image for Your Immerse Exploration

CVPR 2025poster

The reconstruction of immersive and realistic 3D scenes holds significant practical importance in various fields of computer vision and computer graphics. Typically, immersive and realistic scenes should be free from obstructions by dynamic objects, maintain global texture consistency, and allow for…

Cited by 0SourcePDFScholar
2025

Spot the Fake: Large Multimodal Model-Based Synthetic Image Detection with Artifact Explanation

NeurIPS 2025poster

With the rapid advancement of Artificial Intelligence Generated Content (AIGC) technologies, synthetic images have become increasingly prevalent in everyday life, posing new challenges for authenticity assessment and detection. Despite the effectiveness of existing methods in evaluating image authen…

Cited by 0SourcecodeScholar
2025

Stop Looking for “Important Tokens” in Multimodal Language Models: Duplication Matters More

EMNLP 2025

Vision tokens in multimodal large language models often dominate huge computational overhead due to their excessive length compared to linguistic modality. Abundant recent methods aim to solve this problem with token pruning, which first defines an importance criterion for tokens and then prunes the

2025

Token Pruning in Multimodal Large Language Models: Are We Solving the Right Problem?

ACL 2025finding

Multimodal large language models (MLLMs) have shown remarkable performance for cross-modal understanding and generation, yet still suffer from severe inference costs. Recently, abundant works have been proposed to solve this problem with token pruning, which identifies the redundant tokens in MLLMs…

Cited by 0SourcePDFScholar
2025

UrBench: A Comprehensive Benchmark for Evaluating Large Multimodal Models in Multi-View Urban Scenarios

AAAI 2025technical

Recent evaluations of Large Multimodal Models (LMMs) have explored their capabilities in various domains, with only few benchmarks specifically focusing on urban environments. Moreover, existing urban benchmarks have been limited to evaluating LMMs with basic region-level urban tasks under singular…

2025

VHM: Versatile and Honest Vision Language Model for Remote Sensing Image Analysis

AAAI 2025technical

This paper develops a Versatile and Honest vision language Model (VHM) for remote sensing image analysis. VHM is built on a large-scale remote sensing image-text dataset with rich-content captions (VersaD), and an honest instruction dataset comprising both factual and deceptive questions (HnstD). Un…

2025

Where am I? Cross-View Geo-localization with Natural Language Descriptions

ICCV 2025poster

Cross-view geo-localization identifies the locations of street-view images by matching them with geo-tagged satellite images or OSM. However, most existing studies focus on image-to-image retrieval, with fewer addressing text-guided retrieval, a task vital for applications like pedestrian navigation…

2024

3D Building Reconstruction from Monocular Remote Sensing Images with Multi-level Supervisions

CVPR 2024poster

3D building reconstruction from monocular remote sensing images is an important and challenging research problem that has received increasing attention in recent years owing to its low cost of data acquisition and availability for large-scale applications. However existing methods rely on expensive…

2024

AutoOS: Make Your OS More Powerful by Exploiting Large Language Models

ICML 2024poster

With the rapid development of Artificial Intelligence of Things (AIoT), customizing and optimizing operating system (OS) kernel configurations for various AIoT application scenarios is crucial for maximizing system performance. However, existing approaches falter due to the overwhelming problem comp…

Cited by 3SourcePDFScholar
2024

Building Bridges across Spatial and Temporal Resolutions: Reference-Based Super-Resolution via Change Priors and Conditional Diffusion Model

CVPR 2024poster

Reference-based super-resolution (RefSR) has the potential to build bridges across spatial and temporal resolutions of remote sensing images. However existing RefSR methods are limited by the faithfulness of content reconstruction and the effectiveness of texture transfer in large scaling factors. C…

2024

Parrot Captions Teach CLIP to Spot Text

ECCV 2024oral

"Despite CLIP [?] being the foundation model in numerous vision-language applications, CLIP suffers from a severe text spotting bias. Such bias causes CLIP models to ‘Parrot’ the visual text embedded within images while disregarding the authentic visual semantics. We uncover that in the most popular…

2024

SG-BEV: Satellite-Guided BEV Fusion for Cross-View Semantic Segmentation

CVPR 2024highlight

This paper aims at achieving fine-grained building attribute segmentation in a cross-view scenario i.e. using satellite and street-view image pairs. The main challenge lies in overcoming the significant perspective differences between street views and satellite views. In this work we introduce SG-BE…

2024

VIGC: Visual Instruction Generation and Correction

AAAI 2024technical

The integration of visual encoders and large language models (LLMs) has driven recent progress in multimodal large language models (MLLMs). However, the scarcity of high-quality instruction-tuning data for vision-language tasks remains a challenge. The current leading paradigm, such as LLaVA, relies…

2023

An In-Depth Exploration of Person Re-Identification and Gait Recognition in Cloth-Changing Conditions

CVPR 2023poster

The target of person re-identification (ReID) and gait recognition is consistent, that is to match the target pedestrian under surveillance cameras. For the cloth-changing problem, video-based ReID is rarely studied due to the lack of a suitable cloth-changing benchmark, and gait recognition is ofte…

2023

Large-Scale Land Cover Mapping with Fine-Grained Classes via Class-Aware Semi-Supervised Semantic Segmentation

ICCV 2023poster

Semi-supervised learning has attracted increasing attention in the large-scale land cover mapping task. However, existing methods overlook the potential to alleviate the class imbalance problem by selecting a suitable set of unlabeled data. Besides, in class-imbalanced scenarios, existing pseudo-lab…

Cited by 10PDFScholar
2023

OmniCity: Omnipotent City Understanding With Multi-Level and Multi-View Images

CVPR 2023poster

This paper presents OmniCity, a new dataset for omnipotent city understanding from multi-level and multi-view images. More precisely, OmniCity contains multi-view satellite images as well as street-level panorama and mono-view images, constituting over 100K pixel-wise annotated images that are well-…

2023

SEPT: Towards Scalable and Efficient Visual Pre-training

AAAI 2023technical

Recently, the self-supervised pre-training paradigm has shown great potential in leveraging large-scale unlabeled data to improve downstream task performance. However, increasing the scale of unlabeled pre-training data in real-world scenarios requires prohibitive computational costs and faces the c…

Cited by 1SourcePDFScholar
2021

3D Building Reconstruction From Monocular Remote Sensing Images

ICCV 2021poster

3D building reconstruction from monocular remote sensing imagery is an important research problem and an economic solution to large-scale city modeling, compared with reconstruction from LiDAR data and multi-view imagery. However, several challenges such as the partial invisibility of building footp…

Cited by 36PDFcodeScholar
2021

Joint Semantic-geometric Learning for Polygonal Building Segmentation

AAAI 2021technical

Building extraction from aerial or satellite images has been an important research issue in remote sensing and computer vision domains for decades. Compared with pixel-wise semantic segmentation models that output raster building segmentation map, polygonal building segmentation approaches produce m…

Cited by 45SourcePDFScholar