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Xiang Luo

4 accepted papers

2025

Steering When Necessary: Flexible Steering Large Language Models with Backtracking

NeurIPS 2025poster

Large language models (LLMs) have achieved remarkable performance across many generation tasks. Nevertheless, effectively aligning them with desired behaviors remains a significant challenge. Activation steering is an effective and cost-efficient approach that directly modifies the activations of LL…

Cited by 0SourcecodeScholar
2024

DuetSim: Building User Simulator with Dual Large Language Models for Task-Oriented Dialogues

COLING 2024main

User Simulators play a pivotal role in training and evaluating task-oriented dialogue systems. Traditional user simulators typically rely on human-engineered agendas, resulting in generated responses that often lack diversity and spontaneity. Although large language models (LLMs) exhibit a remarkabl…

2024

Zero-Shot Cross-Domain Dialogue State Tracking via Dual Low-Rank Adaptation

ACL 2024long

Zero-shot dialogue state tracking (DST) seeks to enable dialogue systems to transition to unfamiliar domains without manual annotation or extensive retraining. Prior research has approached this objective by embedding prompts into language models (LMs). Common methodologies include integrating promp…