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Abstractive summarization systems today produce fluent and relevant output, but often "hallucinate" statements not supported by the source text. We analyze the connection between hallucinations and training data, and find evidence that…

计算与语言 · 计算机科学 2023-11-20 Daniel King , Zejiang Shen , Nishant Subramani , Daniel S. Weld , Iz Beltagy , Doug Downey

The boom in visualization generation tools has significantly lowered the threshold for chart authoring. Nevertheless, chart authors with an insufficient understanding of perceptual theories may encounter difficulties in evaluating the…

人机交互 · 计算机科学 2025-07-18 Xumeng Wang , Xiangxuan Zhang , Zhiqi Gao , Shuangcheng Jiao , Yuxin Ma

Large Vision-Language Models (LVLMs) have recently demonstrated remarkable progress, yet hallucination remains a critical barrier, particularly in chart understanding, which requires sophisticated perceptual and cognitive abilities as well…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Xingqi Wang , Yiming Cui , Xin Yao , Shijin Wang , Guoping Hu , Xiaoyu Qin

Large Language Models (LLMs) are increasingly used to generate summaries of software bug reports, including sections such as Steps-to-Reproduce (S2R), Actual Behavior (AB), and Expected Behavior (EB). However, these models frequently…

软件工程 · 计算机科学 2026-05-26 Hinduja Nirujan , Shreyas Patil , Abdallah Ayoub , Ahmad Abdel Latif , Gouri Ginde

A key challenge for abstractive summarization is ensuring factual consistency of the generated summary with respect to the original document. For example, state-of-the-art models trained on existing datasets exhibit entity hallucination,…

Despite significant progress in the quality of language generated from abstractive summarization models, these models still exhibit the tendency to hallucinate, i.e., output content not supported by the source document. A number of works…

计算与语言 · 计算机科学 2022-11-01 Liam van der Poel , Ryan Cotterell , Clara Meister

Hallucination plagues even frontier LLMs--but how bad is it really for summarizing academic papers? We evaluate Factored Verification, a simple automated method for detecting hallucinations in abstractive summaries. This method sets a new…

计算与语言 · 计算机科学 2023-10-17 Charlie George , Andreas Stuhlmüller

State-of-the-art abstractive summarization systems often generate \emph{hallucinations}; i.e., content that is not directly inferable from the source text. Despite being assumed incorrect, we find that much hallucinated content is factual,…

计算与语言 · 计算机科学 2021-12-07 Meng Cao , Yue Dong , Jackie Chi Kit Cheung

Large language models are extensively applied across a wide range of tasks, such as customer support, content creation, educational tutoring, and providing financial guidance. However, a well-known drawback is their predisposition to…

计算与语言 · 计算机科学 2024-07-08 Noa Nonkes , Sergei Agaronian , Evangelos Kanoulas , Roxana Petcu

Summarization is one of the most common tasks performed by large language models (LLMs), especially in applications like Retrieval-Augmented Generation (RAG). However, existing evaluations of hallucinations in LLM-generated summaries, and…

Advancement in large pretrained language models has significantly improved their performance for conditional language generation tasks including summarization albeit with hallucinations. To reduce hallucinations, conventional methods…

计算与语言 · 计算机科学 2023-11-15 Arvind Krishna Sridhar , Erik Visser

Explainability methods have progressed rapidly, but global explanations for time-series models remain underdeveloped, with most approaches focusing on local, instance-level attributions. We introduce INSIGHTS, a model-agnostic, user-centric…

机器学习 · 计算机科学 2026-05-20 Bar Eini Porat , Rom Gutman , Uri Shalit , Ofra Amir

This paper primarily focuses on the hallucinations caused due to AI language models(LLMs).LLMs have shown extraordinary Language understanding and generation capabilities .Still it has major a disadvantage hallucinations which give outputs…

计算与语言 · 计算机科学 2026-04-07 Sailesh kiran kurra , Shiek Ruksana , Vishal Borusu

While large language models (LLMs) have shown remarkable capabilities to generate coherent text, they suffer from the issue of hallucinations -- factually inaccurate statements. Among numerous approaches to tackle hallucinations, especially…

计算与语言 · 计算机科学 2025-06-25 Juraj Vladika , Ihsan Soydemir , Florian Matthes

Hallucinations pose a significant challenge to the reliability of neural models for abstractive summarisation. While automatically generated summaries may be fluent, they often lack faithfulness to the original document. This issue becomes…

计算与语言 · 计算机科学 2023-10-27 Yifu Qiu , Yftah Ziser , Anna Korhonen , Edoardo M. Ponti , Shay B. Cohen

Information visualizations such as bar charts and line charts are very popular for exploring data and communicating insights. Interpreting and making sense of such visualizations can be challenging for some people, such as those who are…

计算与语言 · 计算机科学 2020-12-01 Jason Obeid , Enamul Hoque

Hallucinations can be produced by conversational AI systems, particularly in multi-turn conversations where context changes and contradictions may eventually surface. By representing the entire conversation as a temporal graph, we present a…

计算与语言 · 计算机科学 2026-01-07 Vidhi Rathore , Sambu Aneesh , Himanshu Singh

Discharge summaries require extracting critical information from lengthy electronic health records (EHRs), a process that is labor-intensive when performed manually. Large language models (LLMs) can improve generation efficiency; however,…

计算与语言 · 计算机科学 2026-05-06 Severin Ye , Xiao Kong , Xiaopeng He , Guangsu Yan , Dongsuk Oh

One of the most challenging aspects of current single-document news summarization is that the summary often contains 'extrinsic hallucinations', i.e., facts that are not present in the source document, which are often derived via world…

计算与语言 · 计算机科学 2021-09-23 Xinnuo Xu , Ondřej Dušek , Shashi Narayan , Verena Rieser , Ioannis Konstas

Query-focused summarization (QFS) aims to provide a summary of a single document/multi documents that can satisfy the information needs of a given query. It is useful for various real-world applications, such as abstractive snippet…

计算与语言 · 计算机科学 2026-01-06 Zhichao Xu