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Diffusion large language models (D-LLMs) have recently emerged as a promising alternative to auto-regressive LLMs (AR-LLMs). However, the hallucination problem in D-LLMs remains underexplored, limiting their reliability in real-world…

计算与语言 · 计算机科学 2025-10-03 Shenxu Chang , Junchi Yu , Weixing Wang , Yongqiang Chen , Jialin Yu , Philip Torr , Jindong Gu

Large vision-language models (LVLMs) are prone to hallucinations, where certain contextual cues in an image can trigger the language module to produce overconfident and incorrect reasoning about abnormal or hypothetical objects. While some…

Large language models (LLMs) often fail to synthesize information from their context to generate an accurate response. This renders them unreliable in knowledge intensive settings where reliability of the output is key. A critical component…

计算与语言 · 计算机科学 2024-11-06 Rajkumar Ramamurthy , Meghana Arakkal Rajeev , Oliver Molenschot , James Zou , Nazneen Rajani

Multi-label legal annotation requires assigning multiple labels from large, evolving taxonomies to long, fact-intensive documents, often under limited supervision. Parametric encoders typically require task-specific training and retraining…

计算与语言 · 计算机科学 2026-05-19 Li Zhang , Jaromir Savelka , Kevin Ashley

Relation extraction is crucial for constructing knowledge graphs, with large high-quality datasets serving as the foundation for training, fine-tuning, and evaluating models. Generative data augmentation (GDA) is a common approach to expand…

计算与语言 · 计算机科学 2024-10-14 Steven Rogulsky , Nicholas Popovic , Michael Färber

There has been significant research on developing pretrained transformer architectures for multimodal-to-text generation tasks. Albeit performance improvements, such models are frequently overparameterized, hence suffer from hallucination…

计算与语言 · 计算机科学 2023-09-08 Arvind Krishna Sridhar , Yinyi Guo , Erik Visser , Rehana Mahfuz

Multimodal large language models (MLLMs) have revolutionized cross-modal understanding but continue to struggle with hallucinations - fabricated content contradicting visual inputs. Existing hallucination mitigation methods either incur…

计算机视觉与模式识别 · 计算机科学 2026-05-25 Shangpin Peng , Senqiao Yang , Li Jiang , Zhuotao Tian

Large Language Models (LLMs) are prone to generating plausible yet incorrect responses, known as hallucinations. Effectively detecting hallucinations is therefore crucial for the safe deployment of LLMs. Recent research has linked…

计算与语言 · 计算机科学 2026-03-03 Litian Liu , Reza Pourreza , Sunny Panchal , Apratim Bhattacharyya , Yubing Jian , Yao Qin , Roland Memisevic

Generative AI models face the challenge of hallucinations that can undermine users' trust in such systems. We approach the problem of conversational information seeking as a two-step process, where relevant passages in a corpus are…

信息检索 · 计算机科学 2024-01-23 Weronika Łajewska , Krisztian Balog

Large Language Models (LLMs) have shown promising potentials in program generation and no-code automation. However, LLMs are prone to generate hallucinations, i.e., they generate text which sounds plausible but is incorrect. Although there…

软件工程 · 计算机科学 2025-07-10 Vibhor Agarwal , Yulong Pei , Salwa Alamir , Xiaomo Liu

This research paper focuses on the challenges posed by hallucinations in large language models (LLMs), particularly in the context of the medical domain. Hallucination, wherein these models generate plausible yet unverified or incorrect…

计算与语言 · 计算机科学 2023-10-17 Ankit Pal , Logesh Kumar Umapathi , Malaikannan Sankarasubbu

Detecting spans of hallucination in LLM-generated answers is crucial for improving factual consistency. This paper presents a span-level hallucination detection framework for the SemEval-2025 Shared Task, focusing on English and Arabic…

计算与语言 · 计算机科学 2025-04-29 Passant Elchafei , Mervet Abu-Elkheir

Context-grounded hallucinations are cases where model outputs contain information not verifiable against the source text. We study the applicability of LLMs for localizing such hallucinations, as a more practical alternative to existing…

计算与语言 · 计算机科学 2025-09-30 Yehonatan Peisakhovsky , Zorik Gekhman , Yosi Mass , Liat Ein-Dor , Roi Reichart

Despite the many advances of Large Language Models (LLMs) and their unprecedented rapid evolution, their impact and integration into every facet of our daily lives is limited due to various reasons. One critical factor hindering their…

计算与语言 · 计算机科学 2024-08-20 Yakir Yehuda , Itzik Malkiel , Oren Barkan , Jonathan Weill , Royi Ronen , Noam Koenigstein

Faithfulness hallucinations are claims generated by a Large Language Model (LLM) not supported by contexts provided to the LLM. Lacking assessment standards, existing benchmarks focus on "factual statements" that rephrase source materials…

计算与语言 · 计算机科学 2025-06-26 Xiaqiang Tang , Jian Li , Keyu Hu , Du Nan , Xiaolong Li , Xi Zhang , Weigao Sun , Sihong Xie

Hallucination is a well-known phenomenon in text generated by large language models (LLMs). The existence of hallucinatory responses is found in almost all application scenarios e.g., summarization, question-answering (QA) etc. For…

Hallucinations, the generation of apparently convincing yet false statements, remain a major barrier to the safe deployment of LLMs. Building on the strong performance of self-detection methods, we examine the use of structured knowledge…

计算与语言 · 计算机科学 2025-12-30 Sahil Kale , Antonio Luca Alfeo

In language and vision-language models, hallucination is broadly understood as content generated from a model's prior knowledge or biases rather than from the given input. While this phenomenon has been studied in those domains, it has not…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Seyed Amir Kasaei , Mohammad Hossein Rohban

When asked to summarize articles or answer questions given a passage, large language models (LLMs) can hallucinate details and respond with unsubstantiated answers that are inaccurate with respect to the input context. This paper describes…

计算与语言 · 计算机科学 2024-10-04 Yung-Sung Chuang , Linlu Qiu , Cheng-Yu Hsieh , Ranjay Krishna , Yoon Kim , James Glass

Response consistency-based, reference-free hallucination detection (RFHD) methods do not depend on internal model states, such as generation probabilities or gradients, which Grey-box models typically rely on but are inaccessible in…