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Xun Wu

17 accepted papers

2026

AesCoder: Code Aesthetics with Agentic Reward Feedback

ICLR 2026poster

Large Language Models (LLMs) have become valuable assistants for developers in code-related tasks. While LLMs excel at traditional programming tasks such as code generation and bug fixing, they struggle with visually-oriented coding tasks, often producing suboptimal aesthetics. In this paper, we int…

Cited by 0SourcecodeScholar
2026

SlideSparse: Fast and Flexible (2N-2):2N Structured Sparsity

ICML 2026poster

NVIDIA's 2:4 Sparse Tensor Cores deliver $2\times$ throughput but demand 50% pruning—a ratio that collapses LLM reasoning accuracy (Qwen3: 54%→15%). Milder $(2N-2):2N$ patterns (e.g., 6:8, 25% pruning) preserve accuracy yet receive *no* hardware support, falling back to dense execution. We present *…

Cited by 0SourceScholar
2026

VisCodex: Unified Multimodal Code Generation via Merging Vision and Coding Models

ICLR 2026poster

Multimodal large language models (MLLMs) have significantly advanced the integration of visual and textual understanding. However, their ability to generate code from multimodal inputs remains limited. In this work, we introduce VisCodex, a unified framework that seamlessly merges vision and coding…

Cited by 0SourcecodeScholar
2025

Beyond Demographics: Enhancing Cultural Value Survey Simulation with Multi-Stage Personality-Driven Cognitive Reasoning

EMNLP 2025

Introducing **MARK**, the **M**ulti-st**A**ge **R**easoning framewor**K** for cultural value survey response simulation, designed to enhance the accuracy, steerability, and interpretability of large language models in this task. The system is inspired by the type dynamics theory in the MBTI psycholo

Cited by 0SourcePDFScholar
2025

Think Only When You Need with Large Hybrid-Reasoning Models

NeurIPS 2025poster

Recent Large Reasoning Models (LRMs) have shown substantially improved reasoning capabilities over traditional Large Language Models (LLMs) by incorporating extended thinking processes prior to producing final responses. However, excessively lengthy thinking introduces substantial overhead in terms…

Cited by 0SourceScholar
2025

UNComp: Can Matrix Entropy Uncover Sparsity? — A Compressor Design from an Uncertainty-Aware Perspective

EMNLP 2025

Deploying large language models (LLMs) for long-context inference remains challenging due to their substantial memory and computational demands. While techniques such as Key-Value (KV) cache compression are designed to reduce memory usage, they often neglect the structured sparsity inherent in the r

2024

An Efficient Transformer For Demosaicing Via Compressed Multi-Branch Attention Mechanism

ICASSP 2024accepted

Recent demosaicing approaches are not effective and efficient enough as they do not make full use of these two factors: (1) Capturing long-range spatial dependencies effiently. (2) Reducing the computational costs when utilizing channel attention. To take them into consideration, we propose an Effic…

Cited by 0SourceScholar
2024

Boosting Text-to-Video Generative Model with MLLMs Feedback

NeurIPS 2024poster

Recent advancements in text-to-video generative models, such as Sora, have showcased impressive capabilities. These models have attracted significant interest for their potential applications. However, they often rely on extensive datasets of variable quality, which can result in generated videos th…

Cited by 5SourcePDFScholar
2024

KOSMOS-E : Learning to Follow Instruction for Robotic Grasping

IROS 2024poster

Tuning on instruction-following data has been shown to enhance the capabilities and controllability of language models, but the idea is less explored in the robotic field. In this work, we introduce KOSMOS-E, a Multimodal Large Language Model (MLLM) that leverages instruction-following robotic grasp…

Cited by 1SourceScholar
2024

Multimodal Large Language Models Make Text-to-Image Generative Models Align Better

NeurIPS 2024poster

Recent studies have demonstrated the exceptional potentials of leveraging human preference datasets to refine text-to-image generative models, enhancing the alignment between generated images and textual prompts. Despite these advances, current human preference datasets are either prohibitively expe…

Cited by 3SourcePDFScholar
2023

Instance-Aware Hierarchical Structured Policy for Prompt Learning in Vision-Language Models

ICASSP 2023accepted

In recent years, learnable prompts have emerged as a major prompt learning paradigm, enhancing the performance of large-scale vision-language pre-trained models in few-shot image classification. However, enhancing methods are often time-consuming and inflexible because 1) class-specific prompts are…

Cited by 0SourceScholar