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Zhiqiu Xia

3 accepted papers

2025

A Survey of Uncertainty Estimation Methods on Large Language Models

ACL 2025finding

Large language models (LLMs) have demonstrated remarkable capabilities across various tasks. However, these models could offer biased, hallucinated, or non-factual responses camouflaged by their fluency and realistic appearance. Uncertainty estimation is the key method to address this challenge. Whi…

Cited by 0SourcePDFScholar
2025

REALM: Recursive Relevance Modeling for LLM-based Document Re-Ranking

EMNLP 2025

Large Language Models (LLMs) have shown strong capabilities in document re-ranking, a key component in modern Information Retrieval (IR) systems. However, existing LLM-based approaches face notable limitations, including ranking uncertainty, unstable top- k recovery, and high token cost due to token

2019

Transform Domain Based Medical Image Super-resolution via Deep Multi-scale Network

ICASSP 2019accepted

This paper proposes a new medical image super-resolution (SR) network, namely deep multi-scale network (DMSN), in the uniform discrete curvelet transform (UDCT) domain. DMSN is made up of a set of cascaded multi-scale fushion (MSF) blocks. In each MSF block, we use convolution kernels of different s…

Cited by 0SourceScholar