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Contrastive learning (CL) benefits the training of sequential recommendation models with informative self-supervision signals. Existing solutions apply general sequential data augmentation strategies to generate positive pairs and encourage…

信息检索 · 计算机科学 2024-03-19 Peilin Zhou , Jingqi Gao , Yueqi Xie , Qichen Ye , Yining Hua , Jae Boum Kim , Shoujin Wang , Sunghun Kim

Temporal Video Grounding (TVG), the task of locating specific video segments based on language queries, is a core challenge in long-form video understanding. While recent Large Vision-Language Models (LVLMs) have shown early promise in…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Ye Wang , Ziheng Wang , Boshen Xu , Yang Du , Kejun Lin , Zihan Xiao , Zihao Yue , Jianzhong Ju , Liang Zhang , Dingyi Yang , Xiangnan Fang , Zewen He , Zhenbo Luo , Wenxuan Wang , Junqi Lin , Jian Luan , Qin Jin

The temporal sentence grounding in video (TSGV) task is to locate a temporal moment from an untrimmed video, to match a language query, i.e., a sentence. Without considering bias in moment annotations (e.g., start and end positions in a…

计算机视觉与模式识别 · 计算机科学 2021-11-09 Hao Zhang , Aixin Sun , Wei Jing , Joey Tianyi Zhou

Temporal Sentence Grounding (TSG), which aims to localize moments from videos based on the given natural language queries, has attracted widespread attention. Existing works are mainly designed for short videos, failing to handle TSG in…

计算机视觉与模式识别 · 计算机科学 2023-12-29 Houlun Chen , Xin Wang , Hong Chen , Zihan Song , Jia Jia , Wenwu Zhu

Large language models (LLMs) often generate self-contradictory outputs, which severely impacts their reliability and hinders their adoption in practical applications. In video-language models (Video-LLMs), this phenomenon recently draws the…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Chengzhi Li , Heyan Huang , Ping Jian , Zhen Yang , Yaning Tian , Zhongbin Guo

Temporal Video Grounding (TVG) aims to precisely localize video segments corresponding to natural language queries, which is a critical capability for long-form video understanding. Although existing reinforcement learning approaches…

计算机视觉与模式识别 · 计算机科学 2025-08-12 Chaohong Guo , Xun Mo , Yongwei Nie , Xuemiao Xu , Chao Xu , Fei Yu , Chengjiang Long

Vision-language models (VLMs) have shown remarkable progress in offline tasks such as image captioning and video question answering. However, real-time interactive environments impose new demands on VLMs, requiring them to generate…

计算机视觉与模式识别 · 计算机科学 2025-05-19 Keunwoo Peter Yu , Joyce Chai

Test-Time Reinforcement Learning (TTRL) enables Large Language Models (LLMs) to enhance reasoning capabilities on unlabeled test streams by deriving pseudo-rewards from majority voting consensus. However, existing TTRL methods rely…

机器学习 · 计算机科学 2026-04-21 Dong Yan , Jian Liang , Yanbo Wang , Shuo Lu , Ran He , Tieniu Tan

We introduce ED-VTG, a method for fine-grained video temporal grounding utilizing multi-modal large language models. Our approach harnesses the capabilities of multimodal LLMs to jointly process text and video, in order to effectively…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Shraman Pramanick , Effrosyni Mavroudi , Yale Song , Rama Chellappa , Lorenzo Torresani , Triantafyllos Afouras

Temporal knowledge graph reasoning (TKGR) is increasingly gaining attention for its ability to extrapolate new events from historical data, thereby enriching the inherently incomplete temporal knowledge graphs. Existing graph-based…

机器学习 · 计算机科学 2025-01-27 Jinze Sun , Yongpan Sheng , Lirong He , Yongbin Qin , Ming Liu , Tao Jia

Temporally language grounding in untrimmed videos is a newly-raised task in video understanding. Most of the existing methods suffer from inferior efficiency, lacking interpretability, and deviating from the human perception mechanism.…

计算机视觉与模式识别 · 计算机科学 2020-01-22 Jie Wu , Guanbin Li , Si Liu , Liang Lin

A key solution to temporal sentence grounding (TSG) exists in how to learn effective alignment between vision and language features extracted from an untrimmed video and a sentence description. Existing methods mainly leverage vanilla soft…

计算机视觉与模式识别 · 计算机科学 2021-09-15 Daizong Liu , Xiaoye Qu , Pan Zhou

Temporal grounding aims to locate a target video moment that semantically corresponds to the given sentence query in an untrimmed video. However, recent works find that existing methods suffer a severe temporal bias problem. These methods…

计算机视觉与模式识别 · 计算机科学 2022-08-08 Jiachang Hao , Haifeng Sun , Pengfei Ren , Jingyu Wang , Qi Qi , Jianxin Liao

The task of temporal grounding aims to locate video moment in an untrimmed video, with a given sentence query. This paper for the first time investigates some superficial biases that are specific to the temporal grounding task, and proposes…

计算机视觉与模式识别 · 计算机科学 2022-01-14 Peijun Bao , Yadong Mu

While large language models (LLMs) have demonstrated remarkable reasoning capabilities, they are not without their flaws and inaccuracies. Recent studies have introduced various methods to mitigate these limitations. Temporal reasoning…

计算与语言 · 计算机科学 2024-10-10 Siheng Xiong , Ali Payani , Ramana Kompella , Faramarz Fekri

Temporal sentence grounding is a challenging task that aims to localize the moment spans relevant to a language description. Although recent DETR-based models have achieved notable progress by leveraging multiple learnable moment queries,…

计算机视觉与模式识别 · 计算机科学 2024-12-20 Xiaolong Sun , Liushuai Shi , Le Wang , Sanping Zhou , Kun Xia , Yabing Wang , Gang Hua

Temporal cues in videos provide important information for recognizing actions accurately. However, temporal-discriminative features can hardly be extracted without using an annotated large-scale video action dataset for training. This paper…

计算机视觉与模式识别 · 计算机科学 2020-08-06 Jinpeng Wang , Yiqi Lin , Andy J. Ma , Pong C. Yuen

In-context learning (ICL) enables generalization to new tasks with minimal labeled data. However, mainstream ICL approaches rely on a gridding strategy, which lacks the flexibility required for vision applications. We introduce Temporal, a…

计算机视觉与模式识别 · 计算机科学 2025-06-24 Assefa Wahd , Jacob Jaremko , Abhilash Hareendranathan

Temporal Knowledge Graph (TKG) representation learning aims to map temporal evolving entities and relations to embedded representations in a continuous low-dimensional vector space. However, existing approaches cannot capture the temporal…

机器学习 · 计算机科学 2024-12-20 Qian Chen , Ling Chen

Temporal sentence grounding in videos (TSGV) faces challenges due to public TSGV datasets containing significant temporal biases, which are attributed to the uneven temporal distributions of target moments. Existing methods generate…

计算机视觉与模式识别 · 计算机科学 2025-01-15 Junlong Ren , Gangjian Zhang , Haifeng Sun , Hao Wang