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Modern video generation frameworks based on Latent Diffusion Models suffer from inefficiencies in tokenization due to the Frame-Proportional Information Assumption. Existing tokenizers provide fixed temporal compression rates, causing the…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Tianxiong Zhong , Xingye Tian , Boyuan Jiang , Xuebo Wang , Xin Tao , Pengfei Wan , Zhiwei Zhang

The increasing importance of videos as a medium for engagement, communication, and content creation makes them critical for organizations to consider for user feedback. However, sifting through vast amounts of video content on social media…

The cold-start problem is a common challenge for most recommender systems. The practical application of most cold-start methods is hindered by the deficiency in auxiliary content information for users. Moreover, most methods necessitate…

信息检索 · 计算机科学 2024-09-04 Linan Zheng , Jiale Chen , Pengsheng Liu , Guangfa Zhang , Jinyun Fang

Video question answering benefits from the rich information in videos, enabling various applications. However, the large volume of tokens generated from long videos presents challenges to memory efficiency and model performance. To…

计算机视觉与模式识别 · 计算机科学 2025-09-16 Yumeng Shi , Quanyu Long , Wenya Wang

The canonical approach to video-and-language learning (e.g., video question answering) dictates a neural model to learn from offline-extracted dense video features from vision models and text features from language models. These feature…

计算机视觉与模式识别 · 计算机科学 2021-02-12 Jie Lei , Linjie Li , Luowei Zhou , Zhe Gan , Tamara L. Berg , Mohit Bansal , Jingjing Liu

As an emerging type of user-generated content, micro-video drastically enriches people's entertainment experiences and social interactions. However, the popularity pattern of an individual micro-video still remains elusive among the…

机器学习 · 计算机科学 2022-01-11 Yaochen Zhu , Jiayi Xie , Zhenzhong Chen

Modeling long sequences of user behaviors has emerged as a critical frontier in generative recommendation. However, existing solutions face a dilemma: linear attention mechanisms achieve efficiency at the cost of retrieval precision due to…

信息检索 · 计算机科学 2026-02-23 Lei Xin , Yuhao Zheng , Ke Cheng , Changjiang Jiang , Zifan Zhang , Fanhu Zeng

Existing video object segmentation (VOS) benchmarks focus on short-term videos which just last about 3-5 seconds and where objects are visible most of the time. These videos are poorly representative of practical applications, and the…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Lingyi Hong , Wenchao Chen , Zhongying Liu , Wei Zhang , Pinxue Guo , Zhaoyu Chen , Wenqiang Zhang

Long-context video understanding and generation pose a significant computational challenge for Transformer-based video models due to the quadratic complexity of self-attention. While existing sparse attention methods employ coarse-grained…

计算机视觉与模式识别 · 计算机科学 2026-04-01 Anmin Liu , Ruixuan Yang , Huiqiang Jiang , Bin Lin , Minmin Sun , Yong Li , Chen Zhang , Tao Xie

Ultra long video understanding remains an open challenge, as existing vision language models (VLMs) falter on such content due to limited context length and inefficient long term memory retention. To address this, recent works have…

计算机视觉与模式识别 · 计算机科学 2025-12-17 Hongbo Jin , Qingyuan Wang , Wenhao Zhang , Yang Liu , Sijie Cheng

Direct Preference Optimization (DPO) has recently been applied as a post-training technique for text-to-video diffusion models. To obtain training data, annotators are asked to provide preferences between two videos generated from…

计算机视觉与模式识别 · 计算机科学 2025-10-13 Ziyi Wu , Anil Kag , Ivan Skorokhodov , Willi Menapace , Ashkan Mirzaei , Igor Gilitschenski , Sergey Tulyakov , Aliaksandr Siarohin

Long-rollout causal video diffusion has converged on a fixed-size sliding-window KV cache, with recent progress innovating within this layout by changing which tokens occupy the window or how their positions are encoded. The per-head KV…

计算机视觉与模式识别 · 计算机科学 2026-05-29 Hidir Yesiltepe , Jiazhen Hu , Tuna Han Salih Meral , Adil Kaan Akan , Kaan Oktay , Hoda Eldardiry , Pinar Yanardag

Despite recommender systems play a key role in network content platforms, mining the user's interests is still a significant challenge. Existing works predict the user interest by utilizing user behaviors, i.e., clicks, views, etc., but…

信息检索 · 计算机科学 2023-08-15 Xuanji Xiao , Huaqiang Dai , Qian Dong , Shuzi Niu , Yuzhen Liu , Pei Liu

The standard way of training video models entails sampling at each iteration a single clip from a video and optimizing the clip prediction with respect to the video-level label. We argue that a single clip may not have enough temporal…

计算机视觉与模式识别 · 计算机科学 2021-04-06 Xitong Yang , Haoqi Fan , Lorenzo Torresani , Larry Davis , Heng Wang

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…

计算机视觉与模式识别 · 计算机科学 2024-08-12 Nakyeong Yang , Minsung Kim , Seunghyun Yoon , Joongbo Shin , Kyomin Jung

Despite recent advances in video understanding, the capabilities of Large Video Language Models (LVLMs) to perform video-based causal reasoning remains underexplored, largely due to the absence of relevant and dedicated benchmarks for…

计算机视觉与模式识别 · 计算机科学 2025-05-14 Pritam Sarkar , Ali Etemad

Learning the user-item relevance hidden in implicit feedback data plays an important role in modern recommender systems. Neural sequential recommendation models, which formulates learning the user-item relevance as a sequential…

信息检索 · 计算机科学 2022-03-01 Jingwei Zhuo , Bin Liu , Xiang Li , Han Zhu , Xiaoqiang Zhu

Sequential recommendation systems model dynamic preferences of users based on their historical interactions with platforms. Despite recent progress, modeling short-term and long-term behavior of users in such systems is nontrivial and…

信息检索 · 计算机科学 2021-07-07 Mehrnaz Amjadi , Seyed Danial Mohseni Taheri , Theja Tulabandhula

The recent progress in Vision-Language Models (VLMs) has broadened the scope of multimodal applications. However, evaluations often remain limited to functional tasks, neglecting abstract dimensions such as personality traits and human…

计算与语言 · 计算机科学 2025-06-04 Jingxuan Li , Yuning Yang , Shengqi Yang , Linfan Zhang , Ying Nian Wu

Token-based video representation has emerged as a promising approach for enabling large language models (LLMs) to interpret video content. However, existing token reduction techniques, such as pruning and merging, often disrupt essential…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Haichao Zhang , Yun Fu