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Large language models (LLMs) have demonstrated remarkable proficiency in a range of natural language processing tasks. Once deployed, LLMs encounter users with personalized factual knowledge, and such personalized knowledge is consistently…

Artificial Intelligence · Computer Science 2024-05-31 Jingwei Sun , Zhixu Du , Yiran Chen

Large language models (LLMs) have demonstrated impressive generative capabilities with the potential to innovate in medicine. However, the application of LLMs in real clinical settings remains challenging due to the lack of factual…

Computation and Language · Computer Science 2024-07-08 Rui Yang , Haoran Liu , Edison Marrese-Taylor , Qingcheng Zeng , Yu He Ke , Wanxin Li , Lechao Cheng , Qingyu Chen , James Caverlee , Yutaka Matsuo , Irene Li

In today's digital era, the rapid spread of misinformation poses threats to public well-being and societal trust. As online misinformation proliferates, manual verification by fact checkers becomes increasingly challenging. We introduce…

Computation and Language · Computer Science 2023-10-16 Eun Cheol Choi , Emilio Ferrara

Current knowledge graph (KG) construction methods are confirmatory, focusing on recovering known relationships rather than identifying novel or context-dependent nodes. This paper proposes a phenotype-driven and evidence-governed framework…

Artificial Intelligence · Computer Science 2026-04-21 Adela Bâra , Simona-Vasilica Oprea

Hallucination, a phenomenon where multimodal large language models~(MLLMs) tend to generate textual responses that are plausible but unaligned with the image, has become one major hurdle in various MLLM-related applications. Several…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Han Qiu , Jiaxing Huang , Peng Gao , Qin Qi , Xiaoqin Zhang , Ling Shao , Shijian Lu

Large language models (LLMs), such as ChatGPT and GPT4, are making new waves in the field of natural language processing and artificial intelligence, due to their emergent ability and generalizability. However, LLMs are black-box models,…

Computation and Language · Computer Science 2024-01-26 Shirui Pan , Linhao Luo , Yufei Wang , Chen Chen , Jiapu Wang , Xindong Wu

Hallucination, the generation of factually incorrect information, remains a significant challenge for large language models (LLMs), especially in open-domain long-form generation. Existing approaches for detecting hallucination in long-form…

Large language models (LLMs) are known to hallucinate, producing natural language outputs that are not grounded in the input, reference materials, or real-world knowledge. In enterprise applications where AI features support business…

Computation and Language · Computer Science 2025-08-05 Hagyeong Shin , Binoy Robin Dalal , Iwona Bialynicka-Birula , Navjot Matharu , Ryan Muir , Xingwei Yang , Samuel W. K. Wong

Recent research on query generation has focused on using Large Language Models (LLMs), which despite bringing state-of-the-art performance, also introduce issues with hallucinations in the generated queries. In this work, we introduce…

Computation and Language · Computer Science 2024-10-16 Zhongxiang Sun , Zihua Si , Xiaoxue Zang , Kai Zheng , Yang Song , Xiao Zhang , Jun Xu

The risks posed by AI features are increasing as they are rapidly integrated into software applications. In response, regulations and standards for safe and secure AI have been proposed. In this paper, we present an agentic framework that…

Artificial Intelligence · Computer Science 2026-05-01 Wilder Baldwin , Sepideh Ghanavati

Large Language Models (LLMs) are known to produce hallucinations - factually incorrect or fabricated information - which poses significant challenges for many Natural Language Processing (NLP) applications, such as dialogue systems. As a…

Computation and Language · Computer Science 2025-08-11 Xiangyan Chen , Yufeng Li , Yujian Gan , Arkaitz Zubiaga , Matthew Purver

The rapid advancement of large language model(LLM) technology has facilitated its integration into various domains of professional and daily life. However, the persistent challenge of LLM hallucination has emerged as a critical limitation,…

Computation and Language · Computer Science 2026-01-05 Yuhao Zhang , Zhongliang Yang , Linna Zhou

Knowledge Base Question Answering (KBQA) challenges models to bridge the gap between natural language and strict knowledge graph schemas by generating executable logical forms. While Large Language Models (LLMs) have advanced this field,…

Computation and Language · Computer Science 2026-01-12 Xin Sun , Zhongqi Chen , Xing Zheng , Qiang Liu , Shu Wu , Bowen Song , Zilei Wang , Weiqiang Wang , Liang Wang

Large Language Models (LLMs) have shown impressive capabilities but still suffer from the issue of hallucinations. A significant type of this issue is the false premise hallucination, which we define as the phenomenon when LLMs generate…

Computation and Language · Computer Science 2024-03-01 Hongbang Yuan , Pengfei Cao , Zhuoran Jin , Yubo Chen , Daojian Zeng , Kang Liu , Jun Zhao

With the recent spike in the number and availability of Large Language Models (LLMs), it has become increasingly important to provide large and realistic benchmarks for evaluating Knowledge Graph Question Answering (KGQA) systems. So far…

Computation and Language · Computer Science 2024-02-08 Catherine Kosten , Philippe Cudré-Mauroux , Kurt Stockinger

Recent work has shown the capability of Large Language Models (LLMs) to solve tasks related to Knowledge Graphs, such as Knowledge Graph Completion, even in Zero- or Few-Shot paradigms. However, they are known to hallucinate answers, or…

Computation and Language · Computer Science 2024-07-19 Vasile Ionut Remus Iga , Gheorghe Cosmin Silaghi

When we integrate factual knowledge from knowledge graphs (KGs) into large language models (LLMs) to enhance their performance, the cost of injection through training increases with the scale of the models. Consequently, there is…

Computation and Language · Computer Science 2025-01-24 Xinbang Dai , Yuncheng Hua , Tongtong Wu , Yang Sheng , Qiu Ji , Guilin Qi

The proliferation of misinformation necessitates scalable, automated fact-checking solutions. Yet, current benchmarks often overlook multilingual and topical diversity. This paper introduces a novel, dynamically extensible data set that…

Computers and Society · Computer Science 2025-10-22 Lorraine Saju , Arnim Bleier , Jana Lasser , Claudia Wagner

Knowledge Graphs (KGs) have found many applications in industry and academic settings, which in turn, have motivated considerable research efforts towards large-scale information extraction from a variety of sources. Despite such efforts,…

Machine Learning · Computer Science 2021-01-25 Andrea Rossi , Donatella Firmani , Antonio Matinata , Paolo Merialdo , Denilson Barbosa

Large Language Models (LLMs) are increasingly explored as knowledge bases (KBs), yet current evaluation methods focus too narrowly on knowledge retention, overlooking other crucial criteria for reliable performance. In this work, we rethink…

Computation and Language · Computer Science 2024-12-17 Danna Zheng , Mirella Lapata , Jeff Z. Pan
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