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LingXi Zhang

4 accepted papers

2026

When Embedding-Based Defenses Fail: Rethinking Safety in LLM-Based Multi-Agent Systems

ICML 2026poster

Large language model (LLM)-powered multi-agent systems (MAS) enable agents to communicate and share information, achieving strong performance on complex tasks. However, this communication also creates an attack surface where malicious agents can propagate misinformation and steer group decisions, un…

Cited by 0SourceScholar
2025

A Decoupled Multi-Agent Framework for Complex Text Style Transfer

EMNLP 2025

Text style transfer (TST) modifies a source sentence to match a target style while preserving its semantics. While existing models perform well on simple styles like sentiment and formality, they struggle with complex, entangled styles such as poetry and brand-specific tones, which require advanced

Cited by 0SourcePDFScholar
2024

ARL2: Aligning Retrievers with Black-box Large Language Models via Self-guided Adaptive Relevance Labeling

ACL 2024long

Retrieval-augmented generation enhances large language models (LLMs) by incorporating relevant information from external knowledge sources. This enables LLMs to adapt to specific domains and mitigate hallucinations in knowledge-intensive tasks. However, existing retrievers are often misaligned with…

Cited by 9SourcePDFScholar
2023

FC-KBQA: A Fine-to-Coarse Composition Framework for Knowledge Base Question Answering

ACL 2023long

The generalization problem on KBQA has drawn considerable attention. Existing research suffers from the generalization issue brought by the entanglement in the coarse-grained modeling of the logical expression, or inexecutability issues due to the fine-grained modeling of disconnected classes and re…