Search Results for author: Xinqi Zhu

Found 7 papers, 5 papers with code

Anti-Compression Contrastive Facial Forgery Detection

no code implementations13 Feb 2023 Jiajun Huang, Xinqi Zhu, Chengbin Du, Siqi Ma, Surya Nepal, Chang Xu

To enhance the performance for such models, we consider the weak compressed and strong compressed data as two views of the original data and they should have similar representation and relationships with other samples.

Contrastive Learning

ContraFeat: Contrasting Deep Features for Semantic Discovery

no code implementations14 Dec 2022 Xinqi Zhu, Chang Xu, DaCheng Tao

In this paper, we propose a model that automates this process and achieves state-of-the-art semantic discovery performance.

Commutative Lie Group VAE for Disentanglement Learning

1 code implementation7 Jun 2021 Xinqi Zhu, Chang Xu, DaCheng Tao

Instead, we propose to encode the data variations with groups, a structure not only can equivariantly represent variations, but can also be adaptively optimized to preserve the properties of data variations.

Disentanglement

Where and What? Examining Interpretable Disentangled Representations

1 code implementation CVPR 2021 Xinqi Zhu, Chang Xu, DaCheng Tao

We thus impose a perturbation on a certain dimension of the latent code, and expect to identify the perturbation along this dimension from the generated images so that the encoding of simple variations can be enforced.

Disentanglement Model Selection +1

Approximated Bilinear Modules for Temporal Modeling

1 code implementation ICCV 2019 Xinqi Zhu, Chang Xu, Langwen Hui, Cewu Lu, DaCheng Tao

Specifically, we show how two-layer subnets in CNNs can be converted to temporal bilinear modules by adding an auxiliary-branch.

Action Recognition Video Classification

Learning Disentangled Representations with Latent Variation Predictability

1 code implementation ECCV 2020 Xinqi Zhu, Chang Xu, DaCheng Tao

Given image pairs generated by latent codes varying in a single dimension, this varied dimension could be closely correlated with these image pairs if the representation is well disentangled.

Disentanglement

B-CNN: Branch Convolutional Neural Network for Hierarchical Classification

4 code implementations28 Sep 2017 Xinqi Zhu, Michael Bain

In this way we show that CNN based models can be forced to learn successively coarse to fine concepts in the internal layers at the output stage, and that hierarchical prior knowledge can be adopted to boost CNN models' classification performance.

Classification General Classification

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