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Given varying prompts regarding a factoid question, can a large language model (LLM) reliably generate factually correct answers? Existing LLMs may generate distinct responses for different prompts. In this paper, we study the problem of…

Computation and Language · Computer Science 2023-10-31 Qingxiu Dong , Jingjing Xu , Lingpeng Kong , Zhifang Sui , Lei Li

The transition from monolithic large language models (LLMs) to modular, skill-equipped agents represents a fundamental architectural shift in artificial intelligence deployment. While general-purpose models demonstrate remarkable breadth in…

Artificial Intelligence · Computer Science 2026-03-18 Shuzhen Bi , Mengsong Wu , Hao Hao , Keqian Li , Wentao Liu , Siyu Song , Hongbo Zhao , Aimin Zhou

Large language models (LLMs) often make factually incorrect responses despite their success in various applications. In this paper, we hypothesize that relying heavily on simple co-occurrence statistics of the pre-training corpora is one of…

Computation and Language · Computer Science 2023-10-13 Cheongwoong Kang , Jaesik Choi

Large language models have shown impressive few-shot results on a wide range of tasks. However, when knowledge is key for such results, as is the case for tasks such as question answering and fact checking, massive parameter counts to store…

This paper presents an extensive examination of Parameter-Efficient Fine-Tuning (PEFT) for embedding domain specific facts into Large Language Models (LLMs), focusing on improving the fine-tuning process by categorizing question-answer (QA)…

Computation and Language · Computer Science 2025-10-28 Shivam Ratnakar , Abhiroop Talasila , Raghav Chamadiya , Nikhil Agarwal , Vinayak K Doifode

Machine unlearning has emerged as an important component in developing safe and trustworthy models. Prior work on fact unlearning in LLMs has mostly focused on removing a specified target fact robustly, but often overlooks its deductive…

Computation and Language · Computer Science 2025-11-13 Ruihan Wu , Chhavi Yadav , Russ Salakhutdinov , Kamalika Chaudhuri

Large-scale knowledge bases (KBs) like Freebase and Wikidata house millions of structured knowledge. Knowledge Base Question Answering (KBQA) provides a user-friendly way to access these valuable KBs via asking natural language questions.…

Computation and Language · Computer Science 2024-06-24 Lingxi Zhang , Jing Zhang , Yanling Wang , Cuiping Li , Hong Chen

While frontier large language models demonstrate strong reasoning and mathematical capabilities, the practical process of training domain-specialized scientific language models from raw sources remains under-documented. In this work, we…

Artificial Intelligence · Computer Science 2026-02-20 Anuj Gupta

Vision-language models (VLMs) excel at extracting and reasoning about information from images. Yet, their capacity to leverage internal knowledge about specific entities remains underexplored. This work investigates the disparity in model…

Computation and Language · Computer Science 2026-01-06 Ido Cohen , Daniela Gottesman , Mor Geva , Raja Giryes

Large language models (LLMs) are increasingly expected to function as collaborative partners, engaging in back-and-forth dialogue to solve complex, ambiguous problems. However, current LLMs often falter in real-world settings, defaulting to…

Artificial Intelligence · Computer Science 2025-07-30 Tenghao Huang , Sihao Chen , Muhao Chen , Jonathan May , Longqi Yang , Mengting Wan , Pei Zhou

Extractive reading comprehension systems are designed to locate the correct answer to a question within a given text. However, a persistent challenge lies in ensuring these models maintain high accuracy in answering questions while reliably…

Computation and Language · Computer Science 2025-04-09 Qian-Wen Zhang , Fang Li , Jie Wang , Lingfeng Qiao , Yifei Yu , Di Yin , Xing Sun

While pretraining on large-scale image-text data from the Web has facilitated rapid progress on many vision-and-language (V&L) tasks, recent work has demonstrated that pretrained models lack "fine-grained" understanding, such as the ability…

Computation and Language · Computer Science 2023-05-15 Emanuele Bugliarello , Laurent Sartran , Aishwarya Agrawal , Lisa Anne Hendricks , Aida Nematzadeh

Large Language Models (LLMs) can be seen as compressed knowledge bases, but it remains unclear what knowledge they truly contain and how far their knowledge boundary extends. Existing benchmarks are mostly static and provide limited support…

Machine Learning · Computer Science 2026-05-27 Yuheng Yang , Siqi Zhu , Tao Feng , Ge Liu , Jiaxuan You

Previous works show that Pre-trained Language Models (PLMs) can capture factual knowledge. However, some analyses reveal that PLMs fail to perform it robustly, e.g., being sensitive to the changes of prompts when extracting factual…

Computation and Language · Computer Science 2022-10-21 Shaobo Li , Xiaoguang Li , Lifeng Shang , Chengjie Sun , Bingquan Liu , Zhenzhou Ji , Xin Jiang , Qun Liu

Large language models hallucinate factual claims and struggle to ground their outputs in retrievable evidence, particularly in non-English languages. Existing resources impose a trade-off: structured knowledge bases lack textual grounding,…

Computation and Language · Computer Science 2026-05-15 Yingli Shen , Wen Lai , Jie Zhou , Xueren Zhang , Yudong Wang , Kangyang Luo , Shuo Wang , Ge Gao , Alexander Fraser , Maosong Sun

Retrieval Augmented Generation (RAG) has enjoyed increased attention in the recent past and recent advancements in Large Language Models (LLMs) have highlighted the importance of integrating world knowledge into these systems. Current RAG…

Computation and Language · Computer Science 2025-04-11 Joel Barmettler , Abraham Bernstein , Luca Rossetto

Large language models (LLMs) demonstrate remarkable text comprehension and generation capabilities but often lack the ability to utilize up-to-date or domain-specific knowledge not included in their training data. To address this gap, we…

Computation and Language · Computer Science 2025-09-26 Bo Zhang , Hui Ma , Dailin Li , Jian Ding , Jian Wang , Bo Xu , HongFei Lin

Training Large Language Models (LLMs) incurs significant cost; hence, any strategy that accelerates model convergence is helpful. In this paper, we investigate the ability of a simple idea checkpoint averaging along the trajectory of a…

Machine Learning · Computer Science 2023-12-13 Sunny Sanyal , Atula Neerkaje , Jean Kaddour , Abhishek Kumar , Sujay Sanghavi

Factual incorrectness in generated content is one of the primary concerns in ubiquitous deployment of large language models (LLMs). Prior findings suggest LLMs can (sometimes) detect factual incorrectness in their generated content (i.e.,…

Computation and Language · Computer Science 2025-05-28 Hovhannes Tamoyan , Subhabrata Dutta , Iryna Gurevych

Benchmarks such as MMLU suggest flagship language models approach factuality saturation, with scores above 90\%. We show this picture is incomplete. \emph{LLMpedia} generates encyclopedic articles entirely from parametric memory, producing…

Computation and Language · Computer Science 2026-03-26 Muhammed Saeed , Simon Razniewski