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In this paper, we propose a post-training quantization framework of large vision-language models (LVLMs) for efficient multi-modal inference. Conventional quantization methods sequentially search the layer-wise rounding functions by…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Changyuan Wang , Ziwei Wang , Xiuwei Xu , Yansong Tang , Jie Zhou , Jiwen Lu

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…

Machine Learning · Computer Science 2024-02-20 Yiyang Zhou , Chenhang Cui , Rafael Rafailov , Chelsea Finn , Huaxiu Yao

Large vision-language models (LVLMs) suffer from hallucination a lot, generating responses that apparently contradict to the image content occasionally. The key problem lies in its weak ability to comprehend detailed content in a…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Zhiyang Chen , Yousong Zhu , Yufei Zhan , Zhaowen Li , Chaoyang Zhao , Jinqiao Wang , Ming Tang

The objective of digital forgetting is, given a model with undesirable knowledge or behavior, obtain a new model where the detected issues are no longer present. The motivations for forgetting include privacy protection, copyright…

Cryptography and Security · Computer Science 2025-01-14 Alberto Blanco-Justicia , Najeeb Jebreel , Benet Manzanares , David Sánchez , Josep Domingo-Ferrer , Guillem Collell , Kuan Eeik Tan

In this paper, we extend the study of concept ablation within pre-trained models as introduced in 'Ablating Concepts in Text-to-Image Diffusion Models' by (Kumari et al.,2022). Our work focuses on reproducing the results achieved by the…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Shivank Garg , Manyana Tiwari

Data watermarking in language models injects traceable signals, such as specific token sequences or stylistic patterns, into copyrighted text, allowing copyright holders to track and verify training data ownership. Previous data…

Cryptography and Security · Computer Science 2025-07-29 Xinyue Cui , Johnny Tian-Zheng Wei , Swabha Swayamdipta , Robin Jia

Large Vision-Language Models (LVLMs) increasingly rely on retrieval to answer knowledge-intensive multimodal questions. Existing benchmarks overlook conflicts between visual and textual evidence and the importance of generating deflections…

Computation and Language · Computer Science 2026-04-15 Nicholas Moratelli , Christopher Davis , Leonardo F. R. Ribeiro , Bill Byrne , Gonzalo Iglesias

Recently, large vision-language models (LVLMs) have risen to be a promising approach for multimodal tasks. However, principled hallucination mitigation remains a critical challenge.In this work, we first analyze the data generation process…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Chengzhi Yu , Yifan Xu , Yifan Chen , Wenyi Zhang

Despite the strong capabilities of Large Language Models (LLMs) to acquire knowledge from their training corpora, the memorization of sensitive information in the corpora such as copyrighted, biased, and private content has led to ethical…

Computation and Language · Computer Science 2025-05-29 James Y. Huang , Wenxuan Zhou , Fei Wang , Fred Morstatter , Sheng Zhang , Hoifung Poon , Muhao Chen

Recent advancements in text-to-image diffusion models have demonstrated their remarkable capability to generate high-quality images from textual prompts. However, increasing research indicates that these models memorize and replicate images…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Jie Ren , Yaxin Li , Shenglai Zeng , Han Xu , Lingjuan Lyu , Yue Xing , Jiliang Tang

Hallucination has been a significant impediment to the development and application of current Large Vision-Language Models (LVLMs). To mitigate hallucinations, one intuitive and effective way is to directly increase attention weights to…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Li'an Zhong , Ziqiang He , Jibin Zheng , Jin Li , Z. Jane Wang , Xiangui Kang

During pretraining, LLMs inadvertently memorize sensitive or copyrighted data, posing significant compliance challenges under legal frameworks like the GDPR and the EU AI Act. Fulfilling these mandates demands techniques that can remove…

Machine Learning · Computer Science 2026-03-23 Efstratios Zaradoukas , Bardh Prenkaj , Gjergji Kasneci

Although Large Vision-Language Models (LVLMs) have demonstrated powerful capabilities in interpreting visual information, they frequently produce content that deviates from visual information, leading to object hallucination. To tackle…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Qiming Li , Zekai Ye , Xiaocheng Feng , Weihong Zhong , Libo Qin , Ruihan Chen , Baohang Li , Kui Jiang , Yaowei Wang , Ting Liu , Bing Qin

Large Vision-Language Models (LVLMs) have demonstrated impressive multimodal understanding capabilities, yet they remain prone to object hallucination, where models describe non-existent objects or attribute incorrect factual information,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Ahmed Akl , Abdelwahed Khamis , Ali Cheraghian , Zhe Wang , Sara Khalifa , Kewen Wang

Exact unlearning was first introduced as a privacy mechanism that allowed a user to retract their data from machine learning models on request. Shortly after, inexact schemes were proposed to mitigate the impractical costs associated with…

Large Language Models (LLMs) have a privacy concern because they memorize training data (including personally identifiable information (PII) like emails and phone numbers) and leak it during inference. A company can train an LLM on its…

Cryptography and Security · Computer Science 2023-07-21 Jaydeep Borkar

The rapid advancements in artificial intelligence (AI) have primarily focused on the process of learning from data to acquire knowledgeable learning systems. As these systems are increasingly deployed in critical areas, ensuring their…

Machine Learning · Computer Science 2025-12-23 Wei Qian , Chenxu Zhao , Yangyi Li , Mengdi Huai

Authorship attribution aims to identify the origin or author of a document. Traditional approaches have heavily relied on manual features and fail to capture long-range correlations, limiting their effectiveness. Recent advancements…

Computation and Language · Computer Science 2024-10-30 Zhengmian Hu , Tong Zheng , Heng Huang

In the realms of computer vision and natural language processing, Multimodal Large Language Models (MLLMs) have become indispensable tools, proficient in generating textual responses based on visual inputs. Despite their advancements, our…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 YiFan Zhang , Yang Shi , Weichen Yu , Qingsong Wen , Xue Wang , Wenjing Yang , Zhang Zhang , Liang Wang , Rong Jin

Multimodal Large Language Models (MLLMs) deliver detailed responses on vision-language tasks, yet remain susceptible to object hallucination (introducing objects not present in the image), undermining reliability in practice. Prior efforts…

Machine Learning · Computer Science 2026-02-26 Shiwei Tan , Hengyi Wang , Weiyi Qin , Qi Xu , Zhigang Hua , Hao Wang