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Audio-Visual Segmentation (AVS) aims to precisely outline audible objects in a visual scene at the pixel level. Existing AVS methods require fine-grained annotations of audio-mask pairs in supervised learning fashion. This limits their…

计算机视觉与模式识别 · 计算机科学 2023-09-14 Swapnil Bhosale , Haosen Yang , Diptesh Kanojia , Xiatian Zhu

This paper focuses on resolving stability hallucinations (e.g., repetitive or omitted speech) in LLM-based Text-to-Speech (TTS) models by improving and leveraging the attention mechanism. First, we analyzed the alignment mechanism between…

声音 · 计算机科学 2026-02-16 ShiMing Wang , ZhiHao Du , Yang Xiang , TianYu Zhao , Han Zhao , Qian Chen , XianGang Li , HanJie Guo , ZhenHua Ling

Large reasoning models (LRMs) often generate long, seemingly coherent reasoning traces yet still produce incorrect answers, making hallucination detection challenging. Although trajectories contain useful signals, directly using trace text…

机器学习 · 计算机科学 2026-05-06 Jianxiong Zhang , Bing Guo , Yuming Jiang , Haobo Wang , Bo An , Sean Du

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…

计算与语言 · 计算机科学 2023-10-11 Ziwei Ji , Tiezheng Yu , Yan Xu , Nayeon Lee , Etsuko Ishii , Pascale Fung

We study object hallucination in Multimodal Large Language Models (MLLMs) and improve visual contrastive decoding (VCD) by constructing an object-aligned auxiliary view. We leverage object-centric attention in self-supervised Vision…

计算机视觉与模式识别 · 计算机科学 2026-02-13 Boqi Chen , Xudong Liu , Jianing Qiu

This paper investigates how Large Language Models (LLMs) represent non-English tokens -- a question that remains underexplored despite recent progress. We propose a lightweight intervention method using representation steering, where a…

计算与语言 · 计算机科学 2025-08-27 Omar Mahmoud , Buddhika Laknath Semage , Thommen George Karimpanal , Santu Rana

The Large Visual Language Models (LVLMs) enhances user interaction and enriches user experience by integrating visual modality on the basis of the Large Language Models (LLMs). It has demonstrated their powerful information processing and…

人工智能 · 计算机科学 2024-10-22 Wei Lan , Wenyi Chen , Qingfeng Chen , Shirui Pan , Huiyu Zhou , Yi Pan

Vision-Language Models (VLMs) excel at visual understanding but often suffer from visual hallucinations, where they generate descriptions of nonexistent objects, actions, or concepts, posing significant risks in safety-critical…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Tsung-Han Wu , Heekyung Lee , Jiaxin Ge , Joseph E. Gonzalez , Trevor Darrell , David M. Chan

Audio-Visual Speech Recognition (AVSR) achieves robust speech recognition in noisy environments by combining auditory and visual information. However, recent Large Language Model (LLM) based AVSR systems incur high computational costs due…

计算机视觉与模式识别 · 计算机科学 2025-06-06 Jeong Hun Yeo , Hyeongseop Rha , Se Jin Park , Yong Man Ro

Steering vectors are a lightweight method for controlling language model behavior by adding a learned bias to the activations at inference time. Although effective on average, steering effect sizes vary across samples and are unreliable for…

计算与语言 · 计算机科学 2026-02-23 Joschka Braun

Large Vision-Language Models (LVLMs) demonstrate remarkable capabilities in multimodal tasks, but visual object hallucination remains a persistent issue. It refers to scenarios where models generate inaccurate visual object-related…

计算机视觉与模式识别 · 计算机科学 2025-05-06 Liqiang Jing , Guiming Hardy Chen , Ehsan Aghazadeh , Xin Eric Wang , Xinya Du

Large Vision-Language Models (LVLMs) have achieved impressive performance in multimodal tasks, but they still suffer from hallucinations, i.e., generating content that is grammatically accurate but inconsistent with visual inputs. In this…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Chenxi Li , Yichen Guo , Benfang Qian , Jinhao You , Kai Tang , Yaosong Du , Zonghao Zhang , Xiande Huang

LVLMs achieve remarkable multimodal understanding and generation but remain susceptible to hallucinations. Existing mitigation methods predominantly focus on output-level adjustments, leaving the internal mechanisms that give rise to these…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Guangtao Lyu , Xinyi Cheng , Qi Liu , Chenghao Xu , Jiexi Yan , Muli Yang , Fen Fang , Cheng Deng

Large vision-language models have become widely adopted to advance in various domains. However, developing a trustworthy system with minimal interpretable characteristics of large-scale models presents a significant challenge. One of the…

计算机视觉与模式识别 · 计算机科学 2025-06-02 Huu-Thien Tran , Thanh-Dat Truong , Khoa Luu

Recent advancements in multimodal large language models have enhanced document understanding by integrating textual and visual information. However, existing models exhibit incompleteness within their paradigm in real-world scenarios,…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Zhentao He , Can Zhang , Ziheng Wu , Zhenghao Chen , Yufei Zhan , Yifan Li , Zhao Zhang , Xian Wang , Minghui Qiu

Hallucinations in Large Language Models (LLMs) remain a major obstacle, particularly in high-stakes applications where factual accuracy is critical. While representation editing and reading methods have made strides in reducing…

计算与语言 · 计算机科学 2024-10-30 Zheng Yi Ho , Siyuan Liang , Sen Zhang , Yibing Zhan , Dacheng Tao

Instruction-following Vision Large Language Models (VLLMs) have achieved significant progress recently on a variety of tasks. These approaches merge strong pre-trained vision models and large language models (LLMs). Since these components…

机器学习 · 计算机科学 2024-02-20 Yiyang Zhou , Chenhang Cui , Rafael Rafailov , Chelsea Finn , Huaxiu Yao

In existing Audio-Visual Speech Enhancement (AVSE) methods, objectives such as Scale-Invariant Signal-to-Noise Ratio (SI-SNR) and Mean Squared Error (MSE) are widely used; however, they often correlate poorly with perceptual quality and…

声音 · 计算机科学 2026-03-18 Chih-Ning Chen , Jen-Cheng Hou , Hsin-Min Wang , Shao-Yi Chien , Yu Tsao , Fan-Gang Zeng

Existing Large Vision-Language Models (LVLMs) primarily align image features of vision encoder with Large Language Models (LLMs) to leverage their superior text generation capabilities. However, the scale disparity between vision encoder…

计算机视觉与模式识别 · 计算机科学 2024-08-01 Shi Liu , Kecheng Zheng , Wei Chen

This paper aims to address the challenge of hallucinations in Multimodal Large Language Models (MLLMs) particularly for dense image captioning tasks. To tackle the challenge, we identify the current lack of a metric that finely measures the…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Cong Chen , Mingyu Liu , Chenchen Jing , Yizhou Zhou , Fengyun Rao , Hao Chen , Bo Zhang , Chunhua Shen