← Search

Yunfang Wu

25 accepted papers

2026

One Tool Is Enough: Reinforcement Learning of LLM Agents for Repository-Level Code Navigation

ICML 2026poster

Locating files and functions requiring modification in large software repositories is challenging due to their scale and structural complexity. Existing LLM-based methods typically treat this as a repository-level retrieval task and rely on multiple auxiliary tools, which often overlook code executi…

Cited by 0SourceScholar
2025

3DM: Distill, Dynamic Drop, and Merge for Debiasing Multi-modal Large Language Models

ACL 2025finding

The rapid advancement of Multi-modal Language Models (MLLMs) has significantly enhanced performance in multimodal tasks, yet these models often exhibit inherent biases that compromise their reliability and fairness. Traditional debiasing methods face a trade-off between the need for extensive labele…

2025

Beyond Demonstrations: Dynamic Vector Construction from Latent Representations

EMNLP 2025

In-Context derived Vector (ICV) methods extract task-relevant representations from large language models (LLMs) and reinject them during inference, achieving comparable performance to few-shot In-Context Learning (ICL) without repeated demonstration processing. However, existing ICV methods remain s

Cited by 0SourcePDFScholar
2025

Beyond Spurious Signals: Debiasing Multimodal Large Language Models via Counterfactual Inference and Adaptive Expert Routing

EMNLP 2025

Multimodal Large Language Models (MLLMs) have shown substantial capabilities in integrating visual and textual information, yet frequently rely on spurious correlations, undermining their robustness and generalization in complex multimodal reasoning tasks. This paper addresses the critical challenge

Cited by 0SourcePDFScholar
2025

Dynamic Fisher-weighted Model Merging via Bayesian Optimization

NAACL 2025long

The fine-tuning of pre-trained language models has resulted in the widespread availability of task-specific models. Model merging offers an efficient way to create multi-task models by combining these fine-tuned models at the parameter level, without the need for training data or joint training on m…

Cited by 0SourcePDFScholar
2025

Large Language Models Might Not Care What You Are Saying: Prompt Format Beats Descriptions

EMNLP 2025

With the help of in-context learning (ICL), large language models (LLMs) have achieved impressive performance across various tasks. However, the function of descriptive instructions during ICL remains under-explored. In this work, we propose an ensemble prompt framework to describe the selection cri

2024

FPT: Feature Prompt Tuning for Few-shot Readability Assessment

NAACL 2024long

Prompt-based methods have achieved promising results in most few-shot text classification tasks. However, for readability assessment tasks, traditional prompt methods lack crucial linguistic knowledge, which has already been proven to be essential.Moreover, previous studies on utilizing linguistic f…

2024

Mixture-of-Prompt-Experts for Multi-modal Semantic Understanding

COLING 2024main

Deep multimodal semantic understanding that goes beyond the mere superficial content relation mining has received increasing attention in the realm of artificial intelligence. The challenges of collecting and annotating high-quality multi-modal data have underscored the significance of few-shot lear…

Cited by 5SourcePDFScholar
2024

Multi-modal Semantic Understanding with Contrastive Cross-modal Feature Alignment

COLING 2024main

Multi-modal semantic understanding requires integrating information from different modalities to extract users’ real intention behind words. Most previous work applies a dual-encoder structure to separately encode image and text, but fails to learn cross-modal feature alignment, making it hard to ac…

2024

SCOI: Syntax-augmented Coverage-based In-context Example Selection for Machine Translation

EMNLP 2024main

In-context learning (ICL) greatly improves the performance of large language models (LLMs) on various down-stream tasks, where the improvement highly depends on the quality of demonstrations. In this work, we introduce syntactic knowledge to select better in-context examples for machine translation…

2024

Ungrammatical-syntax-based In-context Example Selection for Grammatical Error Correction

NAACL 2024long

In the era of large language models (LLMs), in-context learning (ICL) stands out as an effective prompting strategy that explores LLMs’ potency across various tasks. However, applying LLMs to grammatical error correction (GEC) is still a challenging task. In this paper, we propose a novel ungrammati…

2024

Unleashing Large Language Models’ Proficiency in Zero-shot Essay Scoring

EMNLP 2024finding

Advances in automated essay scoring (AES) have traditionally relied on labeled essays, requiring tremendous cost and expertise for their acquisition. Recently, large language models (LLMs) have achieved great success in various tasks, but their potential is less explored in AES. In this paper, we sh…

Cited by 7SourcePDFScholar
2024

Unsupervised Distractor Generation via Large Language Model Distilling and Counterfactual Contrastive Decoding

ACL 2024findings

Within the context of reading comprehension, the task of Distractor Generation (DG) aims to generate several incorrect options to confuse readers. In recent years, the emergence of Large Language Models (LLMs) provides a potential for unsupervised DG without expensive human-annotated distractor labe…

2023

Are Pre-trained Language Models Useful for Model Ensemble in Chinese Grammatical Error Correction?

ACL 2023short

Model ensemble has been in widespread use for Grammatical Error Correction (GEC), boosting model performance. We hypothesize that model ensemble based on the perplexity (PPL) computed by pre-trained language models (PLMs) should benefit the GEC system. To this end, we explore several ensemble strate…

2022

A Unified Neural Network Model for Readability Assessment with Feature Projection and Length-Balanced Loss

EMNLP 2022main

Readability assessment is a basic research task in the field of education. Traditional methods mainly employ machine learning classifiers with hundreds of linguistic features. Although the deep learning model has become the prominent approach for almost all NLP tasks, it is less explored for readabi…

2022

Enhancing Pre-trained Models with Text Structure Knowledge for Question Generation

COLING 2022main

Today the pre-trained language models achieve great success for question generation (QG) task and significantly outperform traditional sequence-to-sequence approaches. However, the pre-trained models treat the input passage as a flat sequence and are thus not aware of the text structure of input pas…

2022

Focus-Driven Contrastive Learning for Medical Question Summarization

COLING 2022main

Automatic medical question summarization can significantly help the system to understand consumer health questions and retrieve correct answers. The Seq2Seq model based on maximum likelihood estimation (MLE) has been applied in this task, which faces two general problems: the model can not capture w…

Cited by 10SourcePDFScholar
2022

From Spelling to Grammar: A New Framework for Chinese Grammatical Error Correction

EMNLP 2022finding

Chinese Grammatical Error Correction (CGEC) aims to generate a correct sentence from an erroneous sequence, where different kinds of errors are mixed. This paper divides the CGEC task into two steps, namely spelling error correction and grammatical error correction. We firstly propose a novel zero-s…

2022

Position Offset Label Prediction for Grammatical Error Correction

COLING 2022main

We introduce a novel position offset label prediction subtask to the encoder-decoder architecture for grammatical error correction (GEC) task. To keep the meaning of the input sentence unchanged, only a few words should be inserted or deleted during correction, and most of tokens in the erroneous se…

2022

Well-Classified Examples Are Underestimated in Classification with Deep Neural Networks

AAAI 2022technical

The conventional wisdom behind learning deep classification models is to focus on bad-classified examples and ignore well-classified examples that are far from the decision boundary. For instance, when training with cross-entropy loss, examples with higher likelihoods (i.e., well-classified examples…

2021

Asking Questions Like Educational Experts: Automatically Generating Question-Answer Pairs on Real-World Examination Data

EMNLP 2021main

Generating high quality question-answer pairs is a hard but meaningful task. Although previous works have achieved great results on answer-aware question generation, it is difficult to apply them into practical application in the education field. This paper for the first time addresses the question-…

2021

Long-term, Short-term and Sudden Event: Trading Volume Movement Prediction with Graph-based Multi-view Modeling

IJCAI 2021poster

Trading volume movement prediction is the key in a variety of financial applications. Despite its importance, there is few research on this topic because of its requirement for comprehensive understanding of information from different sources. For instance, the relation between mult…