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With the explosion of multimedia content, video moment retrieval (VMR), which aims to detect a video moment that matches a given text query from a video, has been studied intensively as a critical problem. However, the existing VMR…

Computer Vision and Pattern Recognition · Computer Science 2024-08-12 Nakyeong Yang , Minsung Kim , Seunghyun Yoon , Joongbo Shin , Kyomin Jung

Recent incremental learning for action recognition usually stores representative videos to mitigate catastrophic forgetting. However, only a few bulky videos can be stored due to the limited memory. To address this problem, we propose…

Computer Vision and Pattern Recognition · Computer Science 2022-11-03 Yixuan Pei , Zhiwu Qing , Jun Cen , Xiang Wang , Shiwei Zhang , Yaxiong Wang , Mingqian Tang , Nong Sang , Xueming Qian

Understanding long videos with multimodal large language models (MLLMs) remains challenging due to the heavy redundancy across frames and the need for temporally coherent representations. Existing static strategies, such as sparse sampling,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Naishan Zheng , Jie Huang , Qingpei Guo , Feng Zhao

We present a holistic approach to building a robust and useful natural language classification system for real-world content moderation. The success of such a system relies on a chain of carefully designed and executed steps, including the…

Computation and Language · Computer Science 2023-02-16 Todor Markov , Chong Zhang , Sandhini Agarwal , Tyna Eloundou , Teddy Lee , Steven Adler , Angela Jiang , Lilian Weng

Video watermarking embeds a message into a cover video in an imperceptible manner, which can be retrieved even if the video undergoes certain modifications or distortions. Traditional watermarking methods are often manually designed for…

Multimedia · Computer Science 2021-04-27 Xiyang Luo , Yinxiao Li , Huiwen Chang , Ce Liu , Peyman Milanfar , Feng Yang

Cross-modal video retrieval aims to retrieve the semantically relevant videos given a text as a query, and is one of the fundamental tasks in Multimedia. Most of top-performing methods primarily leverage Visual Transformer (ViT) to extract…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Ning Han , Xun Yang , Ee-Peng Lim , Hao Chen , Qianru Sun

With the rapid expansion of user bases on short video platforms, personalized recommendation systems are playing an increasingly critical role in enhancing user experience and optimizing content distribution. Traditional interest modeling…

Information Retrieval · Computer Science 2025-09-08 Yushang Zhao , Yike Peng , Li Zhang , Qianyi Sun , Zhihui Zhang , Yingying Zhuang

Content moderation is the process of screening and monitoring user-generated content online. It plays a crucial role in stopping content resulting from unacceptable behaviors such as hate speech, harassment, violence against specific…

Computation and Language · Computer Science 2023-01-02 Álvaro Huertas-García , Alejandro Martín , Javier Huertas Tato , David Camacho

Platform content moderation applies explicit policy rules and context-dependent conditions to decide whether user content is allowed, restricted, or removed. A correct moderation outcome must therefore depend on which rules a case…

Artificial Intelligence · Computer Science 2026-05-11 Zhifeng Lu , Dianyuan Wang , Yuhu Shang , Zhenbo Xu

Rapid advancements in video diffusion models have enabled the creation of realistic videos, raising concerns about unauthorized use and driving the demand for techniques to protect model ownership. Existing watermarking methods, while…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 MinHyuk Jang , Youngdong Jang , JaeHyeok Lee , Feng Yang , Gyeongrok Oh , Jongheon Jeong , Sangpil Kim

By generating plausible and smooth transitions between two image frames, video inbetweening is an essential tool for video editing and long video synthesis. Traditional works lack the capability to generate complex large motions. While…

Computer Vision and Pattern Recognition · Computer Science 2025-01-09 Maham Tanveer , Yang Zhou , Simon Niklaus , Ali Mahdavi Amiri , Hao Zhang , Krishna Kumar Singh , Nanxuan Zhao

Content moderation on a global scale must navigate a complex array of local cultural distinctions, which can hinder effective enforcement. While global policies aim for consistency and broad applicability, they often miss the subtleties of…

Video Moment Retrieval (VMR) aims to retrieve temporal segments in untrimmed videos corresponding to a given language query by constructing cross-modal alignment strategies. However, these existing strategies are often sub-optimal since…

Computer Vision and Pattern Recognition · Computer Science 2023-12-20 Zhihang Liu , Jun Li , Hongtao Xie , Pandeng Li , Jiannan Ge , Sun-Ao Liu , Guoqing Jin

Video understanding plays a fundamental role for content moderation on short video platforms, enabling the detection of inappropriate content. While classification remains the dominant approach for content moderation, it often struggles in…

Information Retrieval · Computer Science 2025-07-03 Hanzhong Liang , Jinghao Shi , Xiang Shen , Zixuan Wang , Vera Wen , Ardalan Mehrani , Zhiqian Chen , Yifan Wu , Zhixin Zhang

Understanding and tuning the performance of extreme-scale parallel computing systems demands a streaming approach due to the computational cost of applying offline algorithms to vast amounts of performance log data. Analyzing large…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-01-28 Suraj P. Kesavan , Takanori Fujiwara , Jianping Kelvin Li , Caitlin Ross , Misbah Mubarak , Christopher D. Carothers , Robert B. Ross , Kwan-Liu Ma

Artificial Intelligence Generated Content (AIGC) has advanced significantly, particularly with the development of video generation models such as text-to-video (T2V) models and image-to-video (I2V) models. However, like other AIGC types,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-26 Runyi Hu , Jie Zhang , Yiming Li , Jiwei Li , Qing Guo , Han Qiu , Tianwei Zhang

The prevalence of harmful content on social media platforms poses significant risks to users and society, necessitating more effective and scalable content moderation strategies. Current approaches rely on human moderators, supervised…

Computation and Language · Computer Science 2025-01-27 Akash Bonagiri , Lucen Li , Rajvardhan Oak , Zeerak Babar , Magdalena Wojcieszak , Anshuman Chhabra

Social platforms have revolutionized information sharing, but also accelerated the dissemination of harmful and policy-violating content. To ensure safety and compliance at scale, moderation systems must go beyond efficiency and offer…

Computation and Language · Computer Science 2026-01-09 Anqi Li , Wenwei Jin , Jintao Tong , Pengda Qin , Weijia Li , Guo Lu

Video Moment Retrieval (VMR) aims at retrieving the most relevant events from an untrimmed video with natural language queries. Existing VMR methods suffer from two defects: (1) massive expensive temporal annotations are required to obtain…

Computer Vision and Pattern Recognition · Computer Science 2023-05-24 Xun Jiang , Zailei Zhou , Xing Xu , Yang Yang , Guoqing Wang , Heng Tao Shen

Videos are a rich source of multi-modal supervision. In this work, we learn representations using self-supervision by leveraging three modalities naturally present in videos: visual, audio and language streams. To this end, we introduce the…

Computer Vision and Pattern Recognition · Computer Science 2020-11-02 Jean-Baptiste Alayrac , Adrià Recasens , Rosalia Schneider , Relja Arandjelović , Jason Ramapuram , Jeffrey De Fauw , Lucas Smaira , Sander Dieleman , Andrew Zisserman