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Large language models (LLMs) demonstrate strong capabilities in natural language processing but remain prone to hallucinations, generating factually incorrect or fabricated content. This issue undermines their reliability, particularly in…

计算与语言 · 计算机科学 2025-02-19 Cheng Peng Huang , Hao-Yuan Chen

Although fine-tuning Large Language Models (LLMs) with multilingual data can rapidly enhance the multilingual capabilities of LLMs, they still exhibit a performance gap between the dominant language (e.g., English) and non-dominant ones due…

计算与语言 · 计算机科学 2025-06-30 Hengyuan Zhang , Chenming Shang , Sizhe Wang , Dongdong Zhang , Yiyao Yu , Feng Yao , Renliang Sun , Yujiu Yang , Furu Wei

Large-scale self-supervised pre-trained speech encoders outperform conventional approaches in speech recognition and translation tasks. Due to the high cost of developing these large models, building new encoders for new tasks and deploying…

计算与语言 · 计算机科学 2023-12-29 Heng-Jui Chang , Ning Dong , Ruslan Mavlyutov , Sravya Popuri , Yu-An Chung

Language models (LMs) often struggle to pay enough attention to the input context, and generate texts that are unfaithful or contain hallucinations. To mitigate this issue, we present context-aware decoding (CAD), which follows a…

计算与语言 · 计算机科学 2023-05-25 Weijia Shi , Xiaochuang Han , Mike Lewis , Yulia Tsvetkov , Luke Zettlemoyer , Scott Wen-tau Yih

Large Language Models (LLMs) have achieved remarkable success in Natural Language Processing (NLP), yet their cross-lingual performance consistency remains a significant challenge. This paper introduces a novel methodology for efficiently…

计算与语言 · 计算机科学 2025-05-27 Zixiang Xu , Yanbo Wang , Yue Huang , Xiuying Chen , Jieyu Zhao , Meng Jiang , Xiangliang Zhang

How to alleviate the hallucinations of Large Language Models (LLMs) has always been the fundamental goal pursued by the LLMs research community. Looking through numerous hallucination-related studies, a mainstream category of methods is to…

计算与语言 · 计算机科学 2025-02-12 Yinghui Li , Haojing Huang , Jiayi Kuang , Yangning Li , Shu-Yu Guo , Chao Qu , Xiaoyu Tan , Hai-Tao Zheng , Ying Shen , Philip S. Yu

Large Language Models (LLMs) often hallucinate, producing unfaithful or factually incorrect outputs by misrepresenting the provided context or incorrectly recalling internal knowledge. Recent studies have identified specific attention heads…

Large language models (LLMs) have revolutionized natural language processing and broadened their applicability across diverse commercial applications. However, the deployment of these models is constrained by high inference time in…

计算与语言 · 计算机科学 2024-11-12 Euiin Yi , Taehyeon Kim , Hongseok Jeung , Du-Seong Chang , Se-Young Yun

Large Language Models (LLMs) still struggle with multi-step logical reasoning. Existing approaches either purely refine the reasoning chain in natural language form or attach a symbolic solver as an external module. In this work, we instead…

计算与语言 · 计算机科学 2026-04-22 Feihao Fang , My T. Thai , Yuanyuan Lei

Prompting methods play a crucial role in enhancing the capabilities of pre-trained large language models (LLMs). We explore how contrastive prompting (CP) significantly improves the ability of large language models to perform complex…

计算与语言 · 计算机科学 2026-03-06 Liang Yao

As fine-tuning becomes the dominant paradigm for improving large language models (LLMs), understanding what changes during this process is increasingly important. Traditional benchmarking often fails to explain why one model outperforms…

计算与语言 · 计算机科学 2025-09-24 Sabri Boughorbel , Fahim Dalvi , Nadir Durrani , Majd Hawasly

Proficient multilingual speakers often intentionally switch languages in the middle of a conversation. Similarly, recent reasoning-focused bilingual large language models (LLMs) with strong capabilities in both languages exhibit language…

计算与语言 · 计算机科学 2025-10-01 Yihao Li , Jiayi Xin , Miranda Muqing Miao , Qi Long , Lyle Ungar

Machine unlearning aims to remove specific information, e.g. sensitive or undesirable content, from large language models (LLMs) while preserving overall performance. We propose an inference-time unlearning algorithm that uses contrastive…

计算与语言 · 计算机科学 2025-06-17 Vinith M. Suriyakumar , Ayush Sekhari , Ashia Wilson

Huawei Cloud users leverage LoRA (Low-Rank Adaptation) as an efficient and scalable method to fine-tune and customize large language models (LLMs) for application-specific needs. However, tasks that require complex reasoning or deep…

Large Vision-Language Models (LVLMs) have recently shown promising results on various multimodal tasks, even achieving human-comparable performance in certain cases. Nevertheless, LVLMs remain prone to hallucinations -- they often rely…

计算机视觉与模式识别 · 计算机科学 2025-10-17 Kyungryul Back , Seongbeom Park , Milim Kim , Mincheol Kwon , SangHyeok Lee , Hyunyoung Lee , Junhee Cho , Seunghyun Park , Jinkyu Kim

Contrastive learning (CL) has become a ubiquitous approach for several natural language processing (NLP) downstream tasks, especially for question answering (QA). However, the major challenge, how to efficiently train the knowledge…

计算与语言 · 计算机科学 2022-03-31 Wenshen Xu , Mieradilijiang Maimaiti , Yuanhang Zheng , Xin Tang , Ji Zhang

Although Large Language Models (LLMs) excel in reasoning and generation for language tasks, they are not specifically designed for multimodal challenges. Training Multimodal Large Language Models (MLLMs), however, is resource-intensive and…

计算机视觉与模式识别 · 计算机科学 2025-02-18 Yuqi Pang , Bowen Yang , Haoqin Tu , Yun Cao , Zeyu Zhang

The opacity in developing large language models (LLMs) is raising growing concerns about the potential contamination of public benchmarks in the pre-training data. Existing contamination detection methods are typically based on the text…

计算与语言 · 计算机科学 2024-10-31 Feng Yao , Yufan Zhuang , Zihao Sun , Sunan Xu , Animesh Kumar , Jingbo Shang

Large Language Models (LLMs) prompted to generate chain-of-thought (CoT) exhibit impressive reasoning capabilities. Recent attempts at prompt decomposition toward solving complex, multi-step reasoning problems depend on the ability of the…

计算与语言 · 计算机科学 2024-02-28 Gurusha Juneja , Subhabrata Dutta , Soumen Chakrabarti , Sunny Manchanda , Tanmoy Chakraborty

Existing research predominantly focuses on developing powerful language learning models (LLMs) for mathematical reasoning within monolingual languages, with few explorations in preserving efficacy in a multilingual context. To bridge this…

计算与语言 · 计算机科学 2024-10-17 Nuo Chen , Zinan Zheng , Ning Wu , Ming Gong , Dongmei Zhang , Jia Li