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Junyun Gao

dblp:320/3949 · DBLP profile ↗
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1ranked-venue papers
0as first author
1since 2021 · last 2022
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Graphics, computer vision, multimedia, augmented reality and games · 1 · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
1 paper
Video understanding and tracking · 91% Representation and self-supervised learning · 9%

Topics — the 4 heaviest of 5, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Computer vision › Video understanding and tracking
action recognition
0.612022
Holographic Feature Learning of Egocentric-Exocentric Videos for Multi-Domain Action Recognition · IEEE Trans. Multim. 2022
Computer vision › Video understanding and tracking › action recognition
cross-domain action recognition
0.612022
Holographic Feature Learning of Egocentric-Exocentric Videos for Multi-Domain Action Recognition · IEEE Trans. Multim. 2022
Computer vision › Video understanding and tracking
egocentric video understanding
0.612022
Holographic Feature Learning of Egocentric-Exocentric Videos for Multi-Domain Action Recognition · IEEE Trans. Multim. 2022
Machine learning › Representation and self-supervised learning › representation learning › invariant representation learning
view-invariant representation learning
0.212022
Holographic Feature Learning of Egocentric-Exocentric Videos for Multi-Domain Action Recognition · IEEE Trans. Multim. 2022

Methods — techniques the papers use, named apart from their topics

view decomposition · 0.6memory network · 0.6
YearPublicationVenuePosition
2022 Holographic Feature Learning of Egocentric-Exocentric Videos for Multi-Domain Action Recognition
abstract
Though existing cross-domain action recognition methods successfully improve the performance on videos of one view (e.g., egocentric videos) by transferring the knowledge from videos of another view (e.g., exocentric videos), they have limitations in generality because the source and target domains need to be fixed aforehand. In this paper, we propose to solve a more practical task of multi-domain action recognition on egocentric-exocentric videos, which aims to learn a single model to recognize test videos from either egocentric perspective or exocentric perspective by transferring knowledge between two domains. Though previous cross-domain methods can also transfer knowledge from one domain to another one by learning view-invariant representations of two video domains, they are not suitable for the multi-domain action recognition task because they always suffer from the problem of losing view-specific visual information. As a solution to the multi-domain action recognition task, we propose to map a video from either egocentric perspective or exocentric perspective to a global feature space (we call it holographic feature space) that shares both view-invariant and view-specific visual knowledge of two views. Specially, we decompose the video feature into view-invariant component and view-specific component, where view-specific component is written into memory networks for saving view-specific visual knowledge. The final holographic feature combines view-invariant feature and view-specific features of two views based on the memory networks. We demonstrate the effectiveness of the proposed method with extensive experimental results on two public datasets. Moreover, the good performances under the semi-supervised setting show the generality of our model.
Yi Huang 0037, Xiaoshan Yang, Junyun Gao, Changsheng Xu
IEEE Trans. Multim.3