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Zhengyuan Liu

25 accepted papers

2026

AdaMCoT: Rethinking Cross-Lingual Factual Reasoning Through Adaptive Multilingual Chain-of-Thought

AAAI 2026technical

Large language models (LLMs) have shown impressive multilingual capabilities through pretraining on diverse corpora. While these models show strong reasoning abilities, their performance varies significantly across languages due to imbalanced training data distribution. Existing approaches using sam

Cited by 11SourcePDFScholar
2026

How Hard Can It Be? Hardness-Aware Multi-Objective Unlearning

ICML 2026poster

Machine unlearning aims to remove the influence of specific training samples due to privacy, copyright or bias concerns. Multi-objective unlearning seeks to ensure the effective forgetting of such samples while preserving the utility of the unlearned model. Existing multi-objective unlearning method…

Cited by 0SourceScholar
2025

AudioBench: A Universal Benchmark for Audio Large Language Models

NAACL 2025long

We introduce AudioBench, a universal benchmark designed to evaluate Audio Large Language Models (AudioLLMs). It encompasses 8 distinct tasks and 26 datasets, among which, 7 are newly proposed datasets. The evaluation targets three main aspects: speech understanding, audio scene understanding, and vo…

2025

CCL-XCoT: An Efficient Cross-Lingual Knowledge Transfer Method for Mitigating Hallucination Generation

EMNLP 2025

Multilingual Large Language Models (MLLMs) demonstrate strong generalization across languages, yet they remain prone to hallucinations, especially in low-resource languages, due to training data imbalances. These hallucinations, which include inaccurate or fabricated outputs, are particularly proble

Cited by 0SourcePDFScholar
2025

DnA-Eval: Enhancing Large Language Model Evaluation through Decomposition and Aggregation

COLING 2025main

The acceleration of Large Language Models (LLMs) research has opened up new possibilities for evaluating generated text. Though LLMs serve as scalable and economical evaluators, how reliable these evaluators is still under-explored. Prior research efforts in the meta-evaluation of LLMs as judges lim…

Cited by 4SourcePDFScholar
2025

Persuasion Dynamics in LLMs: Investigating Robustness and Adaptability in Knowledge and Safety with DuET-PD

EMNLP 2025

Large Language Models (LLMs) can struggle to balance gullibility to misinformation and resistance to valid corrections in persuasive dialogues, a critical challenge for reliable deployment. We introduce **DuET-PD** (**Du**al **E**valuation for **T**rust in **P**ersuasive **D**ialogues), a framework

2025

Reinforcing Compositional Retrieval: Retrieving Step-by-Step for Composing Informative Contexts

ACL 2025finding

Large Language Models (LLMs) have demonstrated remarkable capabilities across numerous tasks, yet they often rely on external context to handle complex tasks. While retrieval-augmented frameworks traditionally focus on selecting top-ranked documents in a single pass, many real-world scenarios demand…

2024

Exploring Self-supervised Logic-enhanced Training for Large Language Models

NAACL 2024long

Traditional attempts to enhance the logical reasoning abilities of language models often rely on supervised fine-tuning, limiting their generalization to new tasks or domains. Large Language Models (LLMs), with their capacity to condense vast knowledge, can effectively tackle many tasks. Yet, our ex…

2024

In2Core: Leveraging Influence Functions for Coreset Selection in Instruction Finetuning of Large Language Models

EMNLP 2024finding

Despite advancements, fine-tuning Large Language Models (LLMs) remains costly due to the extensive parameter count and substantial data requirements for model generalization. Accessibility to computing resources remains a barrier for the open-source community. To address this challenge, we propose t…

Cited by 1SourcePDFScholar
2024

Learning Planning-based Reasoning by Trajectories Collection and Process Reward Synthesizing

EMNLP 2024main

Large Language Models (LLMs) have demonstrated significant potential in handling complex reasoning tasks through step-by-step rationale generation. However, recent studies have raised concerns regarding the hallucination and flaws in their reasoning process. Substantial efforts are being made to imp…

2024

Personality-aware Student Simulation for Conversational Intelligent Tutoring Systems

EMNLP 2024main

Intelligent Tutoring Systems (ITSs) can provide personalized and self-paced learning experience. The emergence of large language models (LLMs) further enables better human-machine interaction, and facilitates the development of conversational ITSs in various disciplines such as math and language lea…

Cited by 17SourcePDFScholar
2024

Resilience of Large Language Models for Noisy Instructions

EMNLP 2024finding

As the rapidly advancing domain of natural language processing (NLP), large language models (LLMs) have emerged as powerful tools for interpreting human commands and generating text across various tasks. Nonetheless, the resilience of LLMs to handle text containing inherent errors, stemming from hum…

2024

SeaEval for Multilingual Foundation Models: From Cross-Lingual Alignment to Cultural Reasoning

NAACL 2024long

We present SeaEval, a benchmark for multilingual foundation models. In addition to characterizing how these models understand and reason with natural language, we also investigate how well they comprehend cultural practices, nuances, and values. Alongside standard accuracy metrics, we investigate th…

2023

CoAnnotating: Uncertainty-Guided Work Allocation between Human and Large Language Models for Data Annotation

EMNLP 2023long main

Annotated data plays a critical role in Natural Language Processing (NLP) in training models and evaluating their performance. Given recent developments in Large Language Models (LLMs), models such as ChatGPT demonstrate zero-shot capability on many text-annotation tasks, comparable with or even exc…

Cited by 0SourcecodeScholar
2023

Fantastic Expressions and Where to Find Them: Chinese Simile Generation with Multiple Constraints

ACL 2023long

Similes occur in the creative context of describing a concept (i.e., tenor) by making a literally false yet figuratively meaningful comparison to another (i.e., vehicle). Previous efforts form simile generation as a context-free generation task, focusing on simile-style transfer or writing a simile…

2023

Guiding Computational Stance Detection with Expanded Stance Triangle Framework

ACL 2023long

Stance detection determines whether the author of a piece of text is in favor of, against, or neutral towards a specified target, and can be used to gain valuable insights into social media. The ubiquitous indirect referral of targets makes this task challenging, as it requires computational solutio…

2023

Multi-label and Multi-target Sampling of Machine Annotation for Computational Stance Detection

EMNLP 2023short findings

Data collection from manual labeling provides domain-specific and task-aligned supervision for data-driven approaches, and a critical mass of well-annotated resources is required to achieve reasonable performance in natural language processing tasks. However, manual annotations are often challenging…

Cited by 0SourcecodeScholar
2023

Picking the Underused Heads: A Network Pruning Perspective of Attention Head Selection for Fusing Dialogue Coreference Information

ICASSP 2023accepted

The Transformer-based models with the multi-head self-attention mechanism are widely used in natural language processing, and provide state-of-the-art results. While the pre-trained language backbones are shown to implicitly capture certain linguistic knowledge, explicitly incorporating structure-aw…

Cited by 0SourceScholar
2022

Learning from Bootstrapping and Stepwise Reinforcement Reward: A Semi-Supervised Framework for Text Style Transfer

NAACL 2022findings

Text style transfer is an important task in controllable language generation. Supervised approaches have pushed performance improvement on style-oriented rewriting such as formality conversion. However, challenges remain due to the scarcity of large-scale parallel data in many domains. While unsuper…

2022

N-Shot Learning for Augmenting Task-Oriented Dialogue State Tracking

ACL 2022findings

Augmentation of task-oriented dialogues has followed standard methods used for plain-text such as back-translation, word-level manipulation, and paraphrasing despite its richly annotated structure. In this work, we introduce an augmentation framework that utilizes belief state annotations to match t…

Cited by 9SourcePDFScholar
2022

Singlish Message Paraphrasing: A Joint Task of Creole Translation and Text Normalization

COLING 2022main

Within the natural language processing community, English is by far the most resource-rich language. There is emerging interest in conducting translation via computational approaches to conform its dialects or creole languages back to standard English. This computational approach paves the way to le…

2020

Uncertainty Modeling for Machine Comprehension Systems using Efficient Bayesian Neural Networks

COLING 2020industry

While neural approaches have achieved significant improvement in machine comprehension tasks, models often work as a black-box, resulting in lower interpretability, which requires special attention in domains such as healthcare or education. Quantifying uncertainty helps pave the way towards more in…

Cited by 0SourcePDFScholar