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Qingyan Guo

8 accepted papers

2025

Graph Neural Network Enhanced Retrieval for Question Answering of Large Language Models

NAACL 2025long

Retrieval augmented generation has revolutionized large language model (LLM) outputs by providing factual supports. Nevertheless, it struggles to capture all the necessary knowledge for complex reasoning questions. Existing retrieval methods typically divide reference documents into passages, treati…

2025

Rethinking Semantic Parsing for Large Language Models: Enhancing LLM Performance with Semantic Hints

ACL 2025short

Semantic Parsing aims to capture the meaning of a sentence and convert it into a logical, structured form. Previous studies show that semantic parsing enhances the performance of smaller models (e.g., BERT) on downstream tasks. However, it remains unclear whether the improvements extend similarly to…

Cited by 0SourcePDFScholar
2024

Connecting Large Language Models with Evolutionary Algorithms Yields Powerful Prompt Optimizers

ICLR 2024poster

Large Language Models (LLMs) excel in various tasks, but they rely on carefully crafted prompts that often demand substantial human effort. To automate this process, in this paper, we propose a novel framework for discrete prompt optimization, called EvoPrompt, which borrows the idea of evolutionary…

Cited by 0SourcePDFScholar
2024

Hint-Enhanced In-Context Learning Wakes Large Language Models Up For Knowledge-Intensive Tasks

ICASSP 2024accepted

In-context learning (ICL) ability has emerged with the increasing scale of large language models (LLMs), enabling them to learn input-label mappings from demonstrations and perform well on downstream tasks. However, under the standard ICL setting, LLMs may sometimes neglect query-related information…

Cited by 0SourceScholar
2024

LaDiC: Are Diffusion Models Really Inferior to Autoregressive Counterparts for Image-to-Text Generation?

NAACL 2024long

Diffusion models have exhibited remarkable capabilities in text-to-image generation. However, their performance in image-to-text generation, specifically image captioning, has lagged behind Auto-Regressive (AR) models, casting doubt on their applicability for such tasks. In this work, we revisit dif…

2024

Mitigating Reversal Curse in Large Language Models via Semantic-aware Permutation Training

ACL 2024findings

While large language models (LLMs) have achieved impressive performance across diverse tasks, recent studies showcase that causal LLMs suffer from the “reversal curse”. It is a typical example that the model knows “A’s father is B”, but is unable to reason “B’s child is A”. This limitation poses a c…

2024

Predictor-Corrector Enhanced Transformers with Exponential Moving Average Coefficient Learning

NeurIPS 2024poster

Residual networks, as discrete approximations of Ordinary Differential Equations (ODEs), have inspired significant advancements in neural network design, including multistep methods, high-order methods, and multi-particle dynamical systems. The precision of the solution to ODEs significantly affects…

Cited by 2SourcePDFScholar