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Panpan Xu

4 accepted papers

2026

Collaborative LLM Numerical Reasoning with Local Data Protection

AAAI 2026technical

Numerical reasoning over documents, which demands both contextual understanding and logical inference, is challenging for low-capacity local models deployed on computation-constrained devices. Although such complex reasoning queries could be routed to powerful remote models like GPT-4, exposing loca

Cited by 0SourcePDFScholar
2025

A Systematic Survey of Automatic Prompt Optimization Techniques

EMNLP 2025

Since the advent of large language models (LLMs), prompt engineering has been a crucial step for eliciting desired responses for various Natural Language Processing (NLP) tasks. However, prompt engineering remains an impediment for end users due to rapid advances in models, tasks, and associated bes

Cited by 0SourcePDFScholar
2025

VL-Cache: Sparsity and Modality-Aware KV Cache Compression for Vision-Language Model Inference Acceleration

ICLR 2025poster

Vision-Language Models (VLMs) have demonstrated impressive performance across a versatile set of tasks. A key challenge in accelerating VLMs is storing and accessing the large Key-Value (KV) cache that encodes long visual contexts, such as images or videos. While existing KV cache compression method…

Cited by 6SourcePDFScholar
2024

Graph Neural Prompting with Large Language Models

AAAI 2024technical

Large language models (LLMs) have shown remarkable generalization capability with exceptional performance in various language modeling tasks. However, they still exhibit inherent limitations in precisely capturing and returning grounded knowledge. While existing work has explored utilizing knowledge…