Search Results for author: Yixuan Zhou

Found 12 papers, 8 papers with code

BatchNorm-based Weakly Supervised Video Anomaly Detection

1 code implementation26 Nov 2023 Yixuan Zhou, Yi Qu, Xing Xu, Fumin Shen, Jingkuan Song, HengTao Shen

In the proposed BN-WVAD, we leverage the Divergence of Feature from Mean vector (DFM) of BatchNorm as a reliable abnormality criterion to discern potential abnormal snippets in abnormal videos.

Anomaly Detection In Surveillance Videos Video Anomaly Detection

X-HRNet: Towards Lightweight Human Pose Estimation with Spatially Unidimensional Self-Attention

1 code implementation12 Oct 2023 Yixuan Zhou, Xuanhan Wang, Xing Xu, Lei Zhao, Jingkuan Song

Inspired by this observation, we introduce a lightweight and powerful alternative, Spatially Unidimensional Self-Attention (SUSA), to the pointwise (1x1) convolution that is the main computational bottleneck in the depthwise separable 3c3 convolution.

Pose Estimation

MSFlow: Multi-Scale Flow-based Framework for Unsupervised Anomaly Detection

1 code implementation29 Aug 2023 Yixuan Zhou, Xing Xu, Jingkuan Song, Fumin Shen, Heng Tao Shen

Unsupervised anomaly detection (UAD) attracts a lot of research interest and drives widespread applications, where only anomaly-free samples are available for training.

Unsupervised Anomaly Detection

ImbSAM: A Closer Look at Sharpness-Aware Minimization in Class-Imbalanced Recognition

1 code implementation ICCV 2023 Yixuan Zhou, Yi Qu, Xing Xu, HengTao Shen

To overcome this bottleneck, we leverage class priors to restrict the generalization scope of the class-agnostic SAM and propose a class-aware smoothness optimization algorithm named Imbalanced-SAM (ImbSAM).

Semi-supervised Anomaly Detection Supervised Anomaly Detection

AnoOnly: Semi-Supervised Anomaly Detection with the Only Loss on Anomalies

1 code implementation30 May 2023 Yixuan Zhou, Peiyu Yang, Yi Qu, Xing Xu, Zhe Sun, Andrzej Cichocki

Unlike existing SSAD methods that resort to strict loss supervision, AnoOnly suspends it and introduces a form of weak supervision for normal data.

Semi-supervised Anomaly Detection Supervised Anomaly Detection +1

KTN: Knowledge Transfer Network for Learning Multi-person 2D-3D Correspondences

1 code implementation21 Jun 2022 Xuanhan Wang, Lianli Gao, Yixuan Zhou, Jingkuan Song, Meng Wang

Human densepose estimation, aiming at establishing dense correspondences between 2D pixels of human body and 3D human body template, is a key technique in enabling machines to have an understanding of people in images.

Human Part Segmentation Transfer Learning

A Character-level Span-based Model for Mandarin Prosodic Structure Prediction

1 code implementation31 Mar 2022 Xueyuan Chen, Changhe Song, Yixuan Zhou, Zhiyong Wu, Changbin Chen, Zhongqin Wu, Helen Meng

In this paper, we propose a span-based Mandarin prosodic structure prediction model to obtain an optimal prosodic structure tree, which can be converted to corresponding prosodic label sequence.

Sentence

Post-training Quantization for Neural Networks with Provable Guarantees

2 code implementations26 Jan 2022 Jinjie Zhang, Yixuan Zhou, Rayan Saab

Additionally, our error analysis expands the results of previous work on GPFQ to handle general quantization alphabets, showing that for quantizing a single-layer network, the relative square error essentially decays linearly in the number of weights -- i. e., level of over-parametrization.

Quantization

Syntactic representation learning for neural network based TTS with syntactic parse tree traversal

no code implementations13 Dec 2020 Changhe Song, Jingbei Li, Yixuan Zhou, Zhiyong Wu, Helen Meng

Meanwhile, nuclear-norm maximization loss is introduced to enhance the discriminability and diversity of the embeddings of constituent labels.

Representation Learning Sentence

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