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Chi Wang

37 accepted papers

2026

CG-MLLM: Captioning and Generating 3D content via Multi-modal Large Language Models

ICML 2026poster

Large Language Models(LLMs) have revolutionized text generation and multimodal perception, but their capabilities in 3D content generation remain underexplored. Existing methods compromise by producing either low-resolution meshes or coarse structural proxies, failing to capture fine-grained geometr…

Cited by 0SourceScholar
2026

FashionMAC: Deformation-Free Fashion Image Generation with Fine-Grained Model Appearance Customization

AAAI 2026technical

Garment-centric fashion image generation aims to synthesize realistic and controllable human models dressing a given garment, which has attracted growing interest due to its practical applications in e-commerce. The key challenges of the task lie in two aspects: (1) faithfully preserving the garment

Cited by 0SourcePDFScholar
2026

Position: Digital Agents Require Unified Agent-Native Environments

ICML 2026poster

Large language models (LLMs) are increasingly deployed as digital agents that perform multi-step digital work on a computer, but the environments in which they operate remain fragmented and task-specific. Our position is that digital agents need Agent-Native Computer: interfaces that expose system c…

Cited by 0SourceScholar
2026

TUMIX: Multi-Agent Test-Time Scaling with Tool-Use Mixture

ICLR 2026poster

While integrating tools like Code Interpreter and Search has significantly enhanced Large Language Model (LLM) reasoning in models like ChatGPT Agent and Gemini-Pro, practical guidance on optimal tool use is lacking. The core challenge is effectively combining textual reasoning, coding, and search f…

Cited by 0SourceScholar
2026

When Does Divide and Conquer Work for Long Context LLM? A Noise Decomposition Framework

ICLR 2026poster

We investigate the challenge of applying Large Language Models (LLMs) to long texts. We propose a theoretical framework that distinguishes the failure modes of long context tasks into three categories: cross-chunk dependence (task noise), confusion that grows with context size (model noise), and the…

Cited by 0SourcecodeScholar
2026

effGen: Enabling Small Language Models as Capable Autonomous Agents

ICML 2026poster

Most existing language model agentic systems today are built and optimized for large language models (e.g., GPT, Claude, Gemini) via API calls. While powerful, this approach faces several limitations including high token costs and privacy concerns for sensitive applications. We introduce $\textbf{ef…

Cited by 0SourceScholar
2025

AnimateAnything: Consistent and Controllable Animation for Video Generation

CVPR 2025poster

We propose a unified approach for video-controlled generation, enabling text-based guidance and manual annotations to control the generation of videos, similar to camera direction guidance. Specifically, we designed a two-stage algorithm. In the first stage, we convert all control information into f…

Cited by 10SourcePDFScholar
2025

BEST-Route: Adaptive LLM Routing with Test-Time Optimal Compute

ICML 2025poster

Large language models (LLMs) are powerful tools but are often expensive to deploy at scale. LLM query routing mitigates this by dynamically assigning queries to models of varying cost and quality to obtain a desired tradeoff. Prior query routing approaches generate only one response from the select…

Cited by 0SourcePDFScholar
2025

Detail-Preserving Latent Diffusion for Stable Shadow Removal

CVPR 2025poster

Achieving high-quality shadow removal with strong generalizability is challenging in scenes with complex global illumination. Due to the limited diversity in shadow removal datasets, current methods are prone to overfitting training data, often leading to reduced performance on unseen cases. To addr…

Cited by 0SourcePDFScholar
2025

Interactive Speculative Planning: Enhance Agent Efficiency through Co-design of System and User Interface

ICLR 2025poster

Agents, as user-centric tools, are increasingly deployed for human task delegation, assisting with a broad spectrum of requests by generating thoughts, engaging with user proxies, and producing action plans. However, agents based on large language models often face substantial planning latency due t…

Cited by 3SourcePDFScholar
2025

SGAD: Semantic and Geometric-aware Descriptor for Local Feature Matching

ICCV 2025poster

Local feature matching remains a fundamental challenge in computer vision. Recent Area to Point Matching (A2PM) methods have improved matching accuracy. However, existing research based on this framework relies on inefficient pixel-level comparisons and complex graph matching that limit scalability.…

Cited by 0SourcePDFScholar
2025

Steering Large Language Models between Code Execution and Textual Reasoning

ICLR 2025poster

While a lot of recent research focuses on enhancing the textual reasoning capabilities of Large Language Models (LLMs) by optimizing the multi-agent framework or reasoning chains, several benchmark tasks can be solved with 100\% success through direct coding, which is more scalable and avoids the co…

2025

UniTransfer: Video Concept Transfer via Progressive Spatio-Temporal Decomposition

NeurIPS 2025poster

Recent advancements in video generation models have enabled the creation of diverse and realistic videos, with promising applications in advertising and film production. However, as one of the essential tasks of video generation models, video concept transfer remains significantly challenging. Exist…

Cited by 0SourceScholar
2025

Which Agent Causes Task Failures and When? On Automated Failure Attribution of LLM Multi-Agent Systems

ICML 2025spotlight

Failure attribution in LLM multi-agent systems—identifying the agent and step responsible for task failures—provides crucial clues for systems debugging but remains underexplored and labor-intensive. In this paper, we propose and formulate a new research area: automated failure attribution for LLM…

2024

AUTOGEN STUDIO: A No-Code Developer Tool for Building and Debugging Multi-Agent Systems

EMNLP 2024system demonstrations

Multi-agent systems, where multiple agents (generative AI models + tools) collaborate, are emerging as an effective pattern for solving long-running, complex tasks in numerous do- mains. However, specifying their parameters (such as models, tools, and orchestration mechanisms etc,.) and debugging th…

2024

Assessing and Verifying Task Utility in LLM-Powered Applications

EMNLP 2024main

The rapid development of Large Language Models (LLMs) has led to a surge in applications that facilitate collaboration among multiple agents, assisting humans in their daily tasks. However, a significant gap remains in assessing to what extent LLM-powered applications genuinely enhance user experien…

2024

Hybrid LLM: Cost-Efficient and Quality-Aware Query Routing

ICLR 2024poster

Large language models (LLMs) excel in most NLP tasks but also require expensive cloud servers for deployment due to their size, while smaller models that can be deployed on lower cost (e.g., edge) devices, tend to lag behind in terms of response quality. Therefore in this work we propose a hybrid in…

2024

Offline Training of Language Model Agents with Functions as Learnable Weights

ICML 2024poster

Researchers and practitioners have recently reframed powerful Large Language Models (LLMs) as *agents*, enabling them to automate complex tasks largely via the use of specialized functions. To facilitate the development of LLM agents, we present a novel paradigm of training LLM agents without modify…

Cited by 16SourcePDFScholar
2024

Rethinking 3D Geometric Object Features for Enhancing Skeleton-based Action Recognition

IROS 2024poster

Human action recognition is crucial for intelligent robots, especially in the realm of human-robot collaboration research. Recent advancements in human pose estimation algorithms have shifted the focus of action recognition towards skeleton-based models, which exhibit robustness to changes in backgr…

Cited by 0SourceScholar
2023

CF-Font: Content Fusion for Few-Shot Font Generation

CVPR 2023poster

Content and style disentanglement is an effective way to achieve few-shot font generation. It allows to transfer the style of the font image in a source domain to the style defined with a few reference images in a target domain. However, the content feature extracted using a representative font migh…

2023

Flowreg: Latent Space Regularization Using Normalizing Flow For Limited Samples Learning

ICASSP 2023accepted

Modern deep neural network models have made remarkable success in many areas, supported by large sets of training samples. Yet the hunger for huge data has also become fatal in further expanding the use of deep models. Limited sample learning aims at learning generalized and transferable representat…

Cited by 0SourceScholar
2023

Model-Based Planning and Control for Terrestrial-Aerial Bimodal Vehicles with Passive Wheels

IROS 2023poster

Terrestrial and aerial bimodal vehicles have gained widespread attention due to their cross-domain maneuverability. Nevertheless, their bimodal dynamics significantly increase the complexity of motion planning and control, thus hindering robust and efficient autonomous navigation in unknown environm…

Cited by 10SourceScholar
2023

Spatio-temporal Prompting Network for Robust Video Feature Extraction

ICCV 2023poster

The frame quality deterioration problem is one of the main challenges in the field of video understanding. To compensate for the information loss caused by deteriorated frames, recent approaches exploit transformer-based integration modules to obtain spatio-temporal information. However, these integ…

Cited by 5PDFcodeScholar
2023

Targeted Hyperparameter Optimization with Lexicographic Preferences Over Multiple Objectives

ICLR 2023top-5%

Motivated by various practical applications, we propose a novel and general formulation of targeted multi-objective hyperparameter optimization. Our formulation allows a clear specification of an automatable optimization goal using lexicographic preference over multiple objectives. We then propose a…

Cited by 33SourcePDFScholar
2022

Active Boundary Loss for Semantic Segmentation

AAAI 2022technical

This paper proposes a novel active boundary loss for semantic segmentation. It can progressively encourage the alignment between predicted boundaries and ground-truth boundaries during end-to-end training, which is not explicitly enforced in commonly used cross-entropy loss. Based on the predicted b…

2021

An Empirical Study on Hyperparameter Optimization for Fine-Tuning Pre-trained Language Models

ACL 2021long

The performance of fine-tuning pre-trained language models largely depends on the hyperparameter configuration. In this paper, we investigate the performance of modern hyperparameter optimization methods (HPO) on fine-tuning pre-trained language models. First, we study and report three HPO algorithm…

2021

DynaTune: Dynamic Tensor Program Optimization in Deep Neural Network Compilation

ICLR 2021poster

Recently, the DL compiler, together with Learning to Compile has proven to be a powerful technique for optimizing deep learning models. However, existing methods focus on accelerating the convergence speed of the individual tensor operator rather than the convergence speed of the entire model, which…

Cited by 16SourcePDFScholar
2020

A Matrix Chernoff Bound for Markov Chains and Its Application to Co-occurrence Matrices

NeurIPS 2020poster

We prove a Chernoff-type bound for sums of matrix-valued random variables sampled via a regular (aperiodic and irreducible) finite Markov chain. Specially, consider a random walk on a regular Markov chain and a Hermitian matrix-valued function on its state space. Our result gives exponentially decre…

Cited by 10SourcePDFScholar
2020

Faster Graph Embeddings via Coarsening

ICML 2020poster

Graph embeddings are a ubiquitous tool for machine learning tasks, such as node classification and link prediction, on graph-structured data. However, computing the embeddings for large-scale graphs is prohibitively inefficient even if we are interested only in a small subset of relevant vertices. T…

Cited by 31SourcePDFScholar
2020

Reducing Distributional Uncertainty by Mutual Information Maximisation and Transferable Feature Learning

ECCV 2020poster

Distributional uncertainty exists broadly in many real-world applications, one of which in the form of domain discrepancy. Yet in the existing literature, the mathematical definition of it is missing. In this paper, we propose to formulate the distributional uncertainty both between the source(s) an…

Cited by 30SourcePDFScholar