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Yifeng Xu

4 accepted papers

2026

GPS: Directed Acyclic Graph guided Proactive Information Seeking in Large Language Models

ICLR 2026poster

Equipping Large Language Models (LLMs) with the ability to proactively ask clarifying questions is essential to mitigate ambiguity when faced with underspecified user queries in retrieval-augmented generation (RAG) systems. However, existing methods often neglect the rule-based reasoning structures…

Cited by 0SourceScholar
2025

CtrLoRA: An Extensible and Efficient Framework for Controllable Image Generation

ICLR 2025poster

Recently, large-scale diffusion models have made impressive progress in text-to-image (T2I) generation. To further equip these T2I models with fine-grained spatial control, approaches like ControlNet introduce an extra network that learns to follow a condition image. However, for every single condit…

2025

DRESSing Up LLM: Efficient Stylized Question-Answering via Style Subspace Editing

ICLR 2025poster

We introduce DRESS, a novel approach for generating stylized large language model (LLM) responses through representation editing. Existing methods like prompting and fine-tuning are either insufficient for complex style adaptation or computationally expensive, particularly in tasks like NPC creation…

2023

Hierarchical Contrastive Learning for Pattern-Generalizable Image Corruption Detection

ICCV 2023accepted

Effective image restoration with large-size corruptions, such as blind image inpainting, entails precise detection of corruption region masks which remains extremely challenging due to diverse shapes and patterns of corruptions. In this work, we present a novel method for automatic corruption detect…