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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence, 36 / No. 2: AAAI-22 Technical Tracks 2

Unsupervised Temporal Video Grounding with Deep Semantic Clustering

February 1, 2023

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Authors

Daizong Liu

Huazhong University of Science and Technology


Xiaoye Qu

Huazhong University of Science and Technology


Yinzhen Wang

Huazhong University of Science and Technology


Xing Di

Protagolabs Inc.


Kai Zou

ProtagoLabs Inc


Yu Cheng

Microsoft Research


Zichuan Xu

Dalian University of Technology


Pan Zhou

Huazhong University of Science and Technology


DOI:

10.1609/aaai.v36i2.20060


Abstract:

Temporal video grounding (TVG) aims to localize a target segment in a video according to a given sentence query. Though respectable works have made decent achievements in this task, they severely rely on abundant video-query paired data, which is expensive to collect in real-world scenarios. In this paper, we explore whether a video grounding model can be learned without any paired annotations. To the best of our knowledge, this paper is the first work trying to address TVG in an unsupervised setting. Considering there is no paired supervision, we propose a novel Deep Semantic Clustering Network (DSCNet) to leverage all semantic information from the whole query set to compose the possible activity in each video for grounding. Specifically, we first develop a language semantic mining module, which extracts implicit semantic features from the whole query set. Then, these language semantic features serve as the guidance to compose the activity in video via a video-based semantic aggregation module. Finally, we utilize a foreground attention branch to filter out the redundant background activities and refine the grounding results. To validate the effectiveness of our DSCNet, we conduct experiments on both ActivityNet Captions and Charades-STA datasets. The results demonstrate that our DSCNet achieves competitive performance, and even outperforms most weakly-supervised approaches.

Topics: AAAI

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HOW TO CITE:

Daizong Liu||Xiaoye Qu||Yinzhen Wang||Xing Di||Kai Zou||Yu Cheng||Zichuan Xu||Pan Zhou Unsupervised Temporal Video Grounding with Deep Semantic Clustering Proceedings of the AAAI Conference on Artificial Intelligence (2022) 1683-1691.

Daizong Liu||Xiaoye Qu||Yinzhen Wang||Xing Di||Kai Zou||Yu Cheng||Zichuan Xu||Pan Zhou Unsupervised Temporal Video Grounding with Deep Semantic Clustering AAAI 2022, 1683-1691.

Daizong Liu||Xiaoye Qu||Yinzhen Wang||Xing Di||Kai Zou||Yu Cheng||Zichuan Xu||Pan Zhou (2022). Unsupervised Temporal Video Grounding with Deep Semantic Clustering. Proceedings of the AAAI Conference on Artificial Intelligence, 1683-1691.

Daizong Liu||Xiaoye Qu||Yinzhen Wang||Xing Di||Kai Zou||Yu Cheng||Zichuan Xu||Pan Zhou. Unsupervised Temporal Video Grounding with Deep Semantic Clustering. Proceedings of the AAAI Conference on Artificial Intelligence 2022 p.1683-1691.

Daizong Liu||Xiaoye Qu||Yinzhen Wang||Xing Di||Kai Zou||Yu Cheng||Zichuan Xu||Pan Zhou. 2022. Unsupervised Temporal Video Grounding with Deep Semantic Clustering. "Proceedings of the AAAI Conference on Artificial Intelligence". 1683-1691.

Daizong Liu||Xiaoye Qu||Yinzhen Wang||Xing Di||Kai Zou||Yu Cheng||Zichuan Xu||Pan Zhou. (2022) "Unsupervised Temporal Video Grounding with Deep Semantic Clustering", Proceedings of the AAAI Conference on Artificial Intelligence, p.1683-1691

Daizong Liu||Xiaoye Qu||Yinzhen Wang||Xing Di||Kai Zou||Yu Cheng||Zichuan Xu||Pan Zhou, "Unsupervised Temporal Video Grounding with Deep Semantic Clustering", AAAI, p.1683-1691, 2022.

Daizong Liu||Xiaoye Qu||Yinzhen Wang||Xing Di||Kai Zou||Yu Cheng||Zichuan Xu||Pan Zhou. "Unsupervised Temporal Video Grounding with Deep Semantic Clustering". Proceedings of the AAAI Conference on Artificial Intelligence, 2022, p.1683-1691.

Daizong Liu||Xiaoye Qu||Yinzhen Wang||Xing Di||Kai Zou||Yu Cheng||Zichuan Xu||Pan Zhou. "Unsupervised Temporal Video Grounding with Deep Semantic Clustering". Proceedings of the AAAI Conference on Artificial Intelligence, (2022): 1683-1691.

Daizong Liu||Xiaoye Qu||Yinzhen Wang||Xing Di||Kai Zou||Yu Cheng||Zichuan Xu||Pan Zhou. Unsupervised Temporal Video Grounding with Deep Semantic Clustering. AAAI[Internet]. 2022[cited 2023]; 1683-1691.


ISSN: 2374-3468


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