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Detecting fraud in financial transactions typically relies on tabular models that demand heavy feature engineering to handle high-dimensional data and offer limited interpretability, making it difficult for humans to understand predictions.…

机器学习 · 计算机科学 2026-04-10 Xuwei Tan , Yao Ma , Xueru Zhang

The rapid evolution of deepfake technologies demands robust and reliable face forgery detection algorithms. While determining whether an image has been manipulated remains essential, the ability to precisely localize forgery clues is also…

计算机视觉与模式识别 · 计算机科学 2025-12-01 Siran Peng , Haoyuan Zhang , Li Gao , Tianshuo Zhang , Xiangyu Zhu , Bao Li , Weisong Zhao , Zhen Lei

While Diffusion Language Models (DLMs) are theoretically well-suited for iterative refinement due to their non-causal structure, they often fail to reliably revise incorrect tokens in practice. The key challenge lies in the model's…

机器学习 · 计算机科学 2026-01-30 Shuibai Zhang , Fred Zhangzhi Peng , Yiheng Zhang , Jin Pan , Grigorios G. Chrysos

The rapid progress in deep generative models has led to the creation of incredibly realistic synthetic images that are becoming increasingly difficult to distinguish from real-world data. The widespread use of Variational Models, Diffusion…

计算机视觉与模式识别 · 计算机科学 2025-01-13 Anant Mehta , Bryant McArthur , Nagarjuna Kolloju , Zhengzhong Tu

Effective query-item relevance modeling is pivotal for enhancing user experience and safeguarding user satisfaction in e-commerce search systems. Recently, benefiting from the vast inherent knowledge, Large Language Model (LLM) approach…

信息检索 · 计算机科学 2025-02-11 Gang Zhao , Ximing Zhang , Chenji Lu , Hui Zhao , Tianshu Wu , Pengjie Wang , Jian Xu , Bo Zheng

Explaining predictions of deep neural networks (DNNs) is an important and nontrivial task. In this paper, we propose a practical approach to interpret decisions made by a DNN object detector that has fidelity comparable to state-of-the-art…

计算机视觉与模式识别 · 计算机科学 2018-11-21 Denis Gudovskiy , Alec Hodgkinson , Takuya Yamaguchi , Yasunori Ishii , Sotaro Tsukizawa

Deepfake technology has given rise to a spectrum of novel and compelling applications. Unfortunately, the widespread proliferation of high-fidelity fake videos has led to pervasive confusion and deception, shattering our faith that seeing…

计算机视觉与模式识别 · 计算机科学 2024-03-05 Zhongjie Ba , Qingyu Liu , Zhenguang Liu , Shuang Wu , Feng Lin , Li Lu , Kui Ren

We address multimodal deepfake detection requiring both robustness and interpretability by proposing FakeHunter, a unified framework that combines memory guided retrieval, a structured Observation-Thought-Action reasoning loop, and adaptive…

多媒体 · 计算机科学 2025-09-11 Chen Chen , Runze Li , Zejun Zhang , Pukun Zhao , Fanqing Zhou , Longxiang Wang , Haojian Huang

The widespread dissemination of fake news on social media has significantly impacted society, resulting in serious consequences. Conventional deep learning methodologies employing small language models (SLMs) suffer from extensive…

计算与语言 · 计算机科学 2025-06-06 Ziyi Zhou , Xiaoming Zhang , Litian Zhang , Yibo Zhang , Zhenyu Guan , Chaozhuo Li , Philip S. Yu

The proliferation of synthetic images generated by advanced AI models poses significant challenges in identifying and understanding manipulated visual content. Current fake image detection methods predominantly rely on binary classification…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Ritabrata Chakraborty , Rajatsubhra Chakraborty , Ali Khaleghi Rahimian , Thomas MacDougall

Current Vision-Language Models (VLMs) for deepfake detection excel at identifying spatial artifacts but overlook a critical dimension: temporal inconsistencies in video forgeries. Adapting VLMs to reason about these dynamic cues remains a…

计算机视觉与模式识别 · 计算机科学 2026-02-26 Zheyuan Gu , Qingsong Zhao , Yusong Wang , Zhaohong Huang , Xinqi Li , Cheng Yuan , Jiaowei Shao , Chi Zhang , Xuelong Li

The rapid advancement of generative artificial intelligence has enabled the creation of highly realistic fake facial images, posing serious threats to personal privacy and the integrity of online information. Existing deepfake detection…

计算机视觉与模式识别 · 计算机科学 2025-12-29 Huanhuan Yuan , Yang Ping , Zhengqin Xu , Junyi Cao , Shuai Jia , Chao Ma

Transformer-based models have shown strong performance in speech deepfake detection, largely due to the effectiveness of the multi-head self-attention (MHSA) mechanism. MHSA provides frame-level attention scores, which are particularly…

声音 · 计算机科学 2026-02-05 Tuan Dat Phuong , Duc-Tuan Truong , Long-Vu Hoang , Trang Nguyen Thi Thu

Detecting digital face manipulation in images and video has attracted extensive attention due to the potential risk to public trust. To counteract the malicious usage of such techniques, deep learning-based deepfake detection methods have…

计算机视觉与模式识别 · 计算机科学 2023-04-14 Yuhang Lu , Touradj Ebrahimi

Existing methods for deepfake detection aim to develop generalizable detectors. Although "generalizable" is the ultimate target once and for all, with limited training forgeries and domains, it appears idealistic to expect generalization…

计算机视觉与模式识别 · 计算机科学 2025-12-05 Jikang Cheng , Renye Yan , Zhiyuan Yan , Yaozhong Gan , Xueyi Zhang , Zhongyuan Wang , Wei Peng , Ling Liang

Multimodal fake news detection is crucial for mitigating societal disinformation. Existing approaches attempt to address this by fusing multimodal features or leveraging Large Language Models (LLMs) for advanced reasoning. However, these…

计算与语言 · 计算机科学 2026-03-23 Weilin Zhou , Shanwen Tan , Enhao Gu , Yurong Qian

This paper introduces MMRefine, a MultiModal Refinement benchmark designed to evaluate the error refinement capabilities of Multimodal Large Language Models (MLLMs). As the emphasis shifts toward enhancing reasoning during inference,…

计算与语言 · 计算机科学 2025-06-06 Gio Paik , Geewook Kim , Jinbae Im

While multimodal fusion has been extensively studied in Multimodal Sentiment Analysis (MSA), the role of fusion depth and multimodal capacity allocation remains underexplored. In this work, we position fusion depth, scalability, and…

计算与语言 · 计算机科学 2025-04-16 Efthymios Georgiou , Vassilis Katsouros , Yannis Avrithis , Alexandros Potamianos

This paper presents our submission to the ACMMM25 - Grand Challenge on Multimedia Verification. We developed a multi-agent verification system that combines Multimodal Large Language Models (MLLMs) with specialized verification tools to…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Huy Hoan Le , Van Sy Thinh Nguyen , Thi Le Chi Dang , Vo Thanh Khang Nguyen , Truong Thanh Hung Nguyen , Hung Cao

Large language models (LLMs) exhibit excellent performance in natural language processing (NLP), but remain highly sensitive to the quality of input queries, especially when these queries contain misleading or inaccurate information.…

计算与语言 · 计算机科学 2025-06-02 Guocong Li , Weize Liu , Yihang Wu , Ping Wang , Shuaihan Huang , Hongxia Xu , Jian Wu