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Related papers: OLAPH: Improving Factuality in Biomedical Long-for…

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Large language models (LLMs) are increasingly adopted in medical question-answering (QA) scenarios. However, LLMs can generate hallucinations and nonfactual information, undermining their trustworthiness in high-stakes medical tasks.…

Computation and Language · Computer Science 2025-05-09 Yusong Ke , Hongru Lin , Yuting Ruan , Junya Tang , Li Li

Large Language Models tend to struggle when dealing with specialized domains. While all aspects of evaluation hold importance, factuality is the most critical one. Similarly, reliable fact-checking tools and data sources are essential for…

Computation and Language · Computer Science 2025-09-03 Anum Afzal , Juraj Vladika , Florian Matthes

\Ac{LFQA} aims to generate lengthy answers to complex questions. This scenario presents great flexibility as well as significant challenges for evaluation. Most evaluations rely on deterministic metrics that depend on string or n-gram…

Information Retrieval · Computer Science 2025-04-28 Ning Xian , Yixing Fan , Ruqing Zhang , Maarten de Rijke , Jiafeng Guo

The growing capabilities of Large Language Models (LLMs) show significant potential to enhance healthcare by assisting medical researchers and physicians. However, their reliance on static training data is a major risk when medical…

Computation and Language · Computer Science 2025-09-05 Juraj Vladika , Mahdi Dhaini , Florian Matthes

Recent advancements in Large Language Models (LLMs) have pushed the boundaries of natural language processing, especially in long-context understanding. However, the evaluation of these models' long-context abilities remains a challenge due…

Computation and Language · Computer Science 2025-04-24 Cunxiang Wang , Ruoxi Ning , Boqi Pan , Tonghui Wu , Qipeng Guo , Cheng Deng , Guangsheng Bao , Xiangkun Hu , Zheng Zhang , Qian Wang , Yue Zhang

With the rapid development of online medical platforms, consumer health questions (CHQs) are inefficient in diagnosis due to redundant information and frequent non-professional terms. The medical question summary (MQS) task aims to…

Computation and Language · Computer Science 2025-10-07 Chao Liu , Ling Luo , Tengxiao Lv , Huan Zhuang , Lejing Yu , Jian Wang , Hongfei Lin

In response to the pressing need for advanced clinical problem-solving tools in healthcare, we introduce BooksMed, a novel framework based on a Large Language Model (LLM). BooksMed uniquely emulates human cognitive processes to deliver…

The increasing application of multi-modal large language models (MLLMs) across various sectors have spotlighted the essence of their output reliability and accuracy, particularly their ability to produce content grounded in factual…

We introduce DAHL, a benchmark dataset and automated evaluation system designed to assess hallucination in long-form text generation, specifically within the biomedical domain. Our benchmark dataset, meticulously curated from biomedical…

Computation and Language · Computer Science 2024-11-15 Jean Seo , Jongwon Lim , Dongjun Jang , Hyopil Shin

Large language models (LLMs) have shown promise for generative and knowledge-intensive tasks including question-answering (QA) tasks. However, the practical deployment still faces challenges, notably the issue of "hallucination", where…

Computation and Language · Computer Science 2023-10-11 Ziwei Ji , Tiezheng Yu , Yan Xu , Nayeon Lee , Etsuko Ishii , Pascale Fung

Open-domain question answering (ODQA) has emerged as a pivotal research spotlight in information systems. Existing methods follow two main paradigms to collect evidence: (1) The \textit{retrieve-then-read} paradigm retrieves pertinent…

Computation and Language · Computer Science 2024-03-11 Hongda Sun , Yuxuan Liu , Chengwei Wu , Haiyu Yan , Cheng Tai , Xin Gao , Shuo Shang , Rui Yan

Most large language models (LLMs) are trained once and never updated; thus, they lack the ability to dynamically adapt to our ever-changing world. In this work, we perform a detailed study of the factuality of LLM-generated text in the…

Computation and Language · Computer Science 2023-11-23 Tu Vu , Mohit Iyyer , Xuezhi Wang , Noah Constant , Jerry Wei , Jason Wei , Chris Tar , Yun-Hsuan Sung , Denny Zhou , Quoc Le , Thang Luong

Users typically engage with LLMs interactively, yet most existing benchmarks evaluate them in a static, single-turn format, posing reliability concerns in interactive scenarios. We identify a key obstacle towards reliability: LLMs are…

Computation and Language · Computer Science 2024-11-08 Shuyue Stella Li , Vidhisha Balachandran , Shangbin Feng , Jonathan S. Ilgen , Emma Pierson , Pang Wei Koh , Yulia Tsvetkov

Large language models (LLMs) are starting to complement traditional information seeking mechanisms such as web search. LLM-powered chatbots like ChatGPT are gaining prominence among the general public. AI chatbots are also increasingly…

Computation and Language · Computer Science 2025-11-25 Vibhor Agarwal , Yiqiao Jin , Mohit Chandra , Munmun De Choudhury , Srijan Kumar , Nishanth Sastry

Evaluating the factuality of long-form output generated by large language models (LLMs) remains challenging, particularly when responses are open-ended and contain many fine-grained factual statements. Existing evaluation methods primarily…

Computation and Language · Computer Science 2026-04-06 Nazanin Jafari , James Allan , Mohit Iyyer

Despite the impressive capabilities of Large Language Models (LLMs), existing Conversational Health Agents (CHAs) remain static and brittle, incapable of adaptive multi-turn reasoning, symptom clarification, or transparent decision-making.…

Computation and Language · Computer Science 2025-07-11 Xinyi Liu , Dachun Sun , Yi R. Fung , Dilek Hakkani-Tür , Tarek Abdelzaher

Question answering based on retrieval augmented generation (RAG-QA) is an important research topic in NLP and has a wide range of real-world applications. However, most existing datasets for this task are either constructed using a single…

Computation and Language · Computer Science 2024-10-04 Rujun Han , Yuhao Zhang , Peng Qi , Yumo Xu , Jenyuan Wang , Lan Liu , William Yang Wang , Bonan Min , Vittorio Castelli

Long-form question answering (LFQA) aims to generate a paragraph-length answer for a given question. While current work on LFQA using large pre-trained model for generation are effective at producing fluent and somewhat relevant content,…

Computation and Language · Computer Science 2022-03-02 Dan Su , Xiaoguang Li , Jindi Zhang , Lifeng Shang , Xin Jiang , Qun Liu , Pascale Fung

Medical Large Language Models (MLLMs) have demonstrated potential in healthcare applications, yet their propensity for hallucinations -- generating medically implausible or inaccurate information -- presents substantial risks to patient…

Computation and Language · Computer Science 2025-04-01 Kaiwen Zuo , Yirui Jiang

Large language models (LLMs) often generate content that contains factual errors when responding to fact-seeking prompts on open-ended topics. To benchmark a model's long-form factuality in open domains, we first use GPT-4 to generate…

Computation and Language · Computer Science 2024-11-08 Jerry Wei , Chengrun Yang , Xinying Song , Yifeng Lu , Nathan Hu , Jie Huang , Dustin Tran , Daiyi Peng , Ruibo Liu , Da Huang , Cosmo Du , Quoc V. Le