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Enhancing the multimodal reasoning capabilities of Multimodal Large Language Models (MLLMs) is a challenging task that has attracted increasing attention in the community. Recently, several studies have applied Reinforcement Learning with…

Machine Learning · Computer Science 2026-03-04 Tong Xiao , Xin Xu , Zhenya Huang , Hongyu Gao , Quan Liu , Qi Liu , Enhong Chen

Large Vision Language Models (LVLMs) achieve strong multimodal reasoning but frequently exhibit hallucinations and incorrect responses with high certainty, which hinders their usage in high-stakes domains. Existing verbalized confidence…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Wenyi Xiao , Xinchi Xu , Leilei Gan

Large Vision-Language Models (LVLMs) often produce responses that misalign with factual information, a phenomenon known as hallucinations. While hallucinations are well-studied, the exact causes behind them remain underexplored. In this…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Sreyan Ghosh , Chandra Kiran Reddy Evuru , Sonal Kumar , Utkarsh Tyagi , Oriol Nieto , Zeyu Jin , Dinesh Manocha

Large Language Models (LLMs) have gained widespread adoption in various natural language processing tasks, including question answering and dialogue systems. However, a major drawback of LLMs is the issue of hallucination, where they…

Computation and Language · Computer Science 2024-07-08 Yuyan Chen , Qiang Fu , Yichen Yuan , Zhihao Wen , Ge Fan , Dayiheng Liu , Dongmei Zhang , Zhixu Li , Yanghua Xiao

Large vision-language models (LVLMs) have witnessed significant progress on visual understanding tasks. However, they often prioritize language knowledge over image information on visual reasoning tasks, incurring performance degradation.…

Computer Vision and Pattern Recognition · Computer Science 2025-10-16 Jingqi Zhou , Sheng Wang , Jingwei Dong , Kai Liu , Lei Li , Jiahui Gao , Jiyue Jiang , Lingpeng Kong , Chuan Wu

Vision-Language Models (VLMs) often suffer from visual hallucinations: generating things that are not consistent with visual inputs and language shortcuts, where they skip the visual part and just rely on text priors. These issues arise…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Zongxia Li , Wenhao Yu , Chengsong Huang , Zhenwen Liang , Rui Liu , Fuxiao Liu , Jingxi Che , Dian Yu , Jordan Boyd-Graber , Haitao Mi , Dong Yu

The growing capability of video generation poses escalating security risks, making reliable detection increasingly essential. In this paper, we introduce VideoVeritas, a framework that integrates fine-grained perception and fact-based…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Hao Tan , Jun Lan , Senyuan Shi , Zichang Tan , Zijian Yu , Huijia Zhu , Weiqiang Wang , Jun Wan , Zhen Lei

Human video comprehension demonstrates dynamic coordination between reasoning and visual attention, adaptively focusing on query-relevant details. However, current long-form video question answering systems employ rigid pipelines that…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Zixuan Dong , Baoyun Peng , Yufei Wang , Lin Liu , Xinxin Dong , Yunlong Cao , Xiaodong Wang

Large Vision-Language Models (LVLMs) are susceptible to object hallucinations, an issue in which their generated text contains non-existent objects, greatly limiting their reliability and practicality. Current approaches often rely on the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-24 Ailin Deng , Zhirui Chen , Bryan Hooi

Video reasoning has advanced with large multimodal models (LMMs), yet their inference is often a single pass that returns an answer without verifying whether the reasoning is evidence-aligned. We introduce Reinforce to Learn, Elect to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Songyuan Yang , Weijiang Yu , Jilin Ma , Ziyu Liu , Guijian Tang , Wenjing Yang , Huibin Tan , Nong Xiao

Large Language Models (LLMs), particularly slow-thinking models, often exhibit severe hallucination, outputting incorrect content due to an inability to accurately recognize knowledge boundaries during reasoning. While Reinforcement…

Artificial Intelligence · Computer Science 2026-04-17 Baochang Ren , Shuofei Qiao , Da Zheng , Huajun Chen , Ningyu Zhang

Contemporary Language Models (LMs), while impressively fluent, often generate content that is factually incorrect or unfaithful to the input context - a critical issue commonly referred to as 'hallucination'. This tendency of LMs to…

Computation and Language · Computer Science 2025-06-24 Anwoy Chatterjee , Yash Goel , Tanmoy Chakraborty

Pre-trained large language models (LMs) struggle to perform logical reasoning reliably despite advances in scale and compositionality. In this work, we tackle this challenge through the lens of symbolic programming. We propose DSR-LM, a…

Artificial Intelligence · Computer Science 2023-05-09 Hanlin Zhang , Jiani Huang , Ziyang Li , Mayur Naik , Eric Xing

Hallucination remains a key obstacle to the reliable deployment of large language models (LLMs) in real-world question answering tasks. A widely adopted strategy to detect hallucination, known as self-assessment, relies on the model's own…

Artificial Intelligence · Computer Science 2025-06-04 Jinyuan Luo , Zhen Fang , Yixuan Li , Seongheon Park , Ling Chen

Reinforcement Learning with Verifiable Rewards (RLVR) has significantly advanced reasoning capabilities in Large Language Models. However, adapting RLVR to multimodal domains suffers from a critical \textit{perception-reasoning decoupling}.…

Artificial Intelligence · Computer Science 2026-01-13 Shujian Gao , Yuan Wang , Jiangtao Yan , Zuxuan Wu , Yu-Gang Jiang

Large Language Models (LLMs) have become powerful, but hallucinations remain a vital obstacle to their trustworthy use. Previous works improved the capability of hallucination detection by measuring uncertainty. But they can not explain the…

Computation and Language · Computer Science 2026-02-03 Yiming Huang , Junyan Zhang , Zihao Wang , Biquan Bie , Yunzhong Qiu , Xuming Hu , Yi R. Fung , Xinlei He

Video Large Multimodal Models (VLMMs) have made impressive strides in understanding video content, but they often struggle with abstract and adaptive reasoning-the ability to revise their interpretations when new information emerges. In…

Computer Vision and Pattern Recognition · Computer Science 2025-10-08 Yue Zhang , Jilei Sun , Yunhui Guo , Vibhav Gogate

Vision-Language Models often struggle with complex visual reasoning due to the visual information loss in textual CoT. Existing methods either add the cost of tool calls or rely on localized patch-based embeddings that are insufficient to…

Computation and Language · Computer Science 2026-04-10 Mengdan Zhu , Senhao Cheng , Liang Zhao

While large language models (LLMs) have demonstrated increasing power, they have also called upon studies on their hallucinated outputs that deviate from factually correct statements. In this paper, we focus on one important scenario of…

Computation and Language · Computer Science 2025-01-23 Nan Xu , Xuezhe Ma

Large Language Models (LLMs) have demonstrated remarkable efficiency in tackling various tasks based on human instructions, but studies reveal that they often struggle with tasks requiring reasoning, such as math or physics. This limitation…

Computation and Language · Computer Science 2024-10-08 Ruoyu Wang , Xiaoxuan Li , Lina Yao