Search Results for author: Xiyu Wang

Found 12 papers, 1 papers with code

Efficient Transfer Learning in Diffusion Models via Adversarial Noise

no code implementations23 Aug 2023 Xiyu Wang, Baijiong Lin, Daochang Liu, Chang Xu

Diffusion Probabilistic Models (DPMs) have demonstrated substantial promise in image generation tasks but heavily rely on the availability of large amounts of training data.

Denoising Image Generation +1

Boosting Diffusion Models with an Adaptive Momentum Sampler

no code implementations23 Aug 2023 Xiyu Wang, Anh-Dung Dinh, Daochang Liu, Chang Xu

Our proposed sampler can be readily applied to a pre-trained diffusion model, utilizing momentum mechanisms and adaptive updating to smooth the reverse sampling process and ensure stable generation, resulting in outputs of enhanced quality.

GujiBERT and GujiGPT: Construction of Intelligent Information Processing Foundation Language Models for Ancient Texts

no code implementations11 Jul 2023 Dongbo Wang, Chang Liu, Zhixiao Zhao, Si Shen, Liu Liu, Bin Li, Haotian Hu, Mengcheng Wu, Litao Lin, Xue Zhao, Xiyu Wang

In the context of the rapid development of large language models, we have meticulously trained and introduced the GujiBERT and GujiGPT language models, which are foundational models specifically designed for intelligent information processing of ancient texts.

Model Selection Part-Of-Speech Tagging +2

Confidence Attention and Generalization Enhanced Distillation for Continuous Video Domain Adaptation

no code implementations18 Mar 2023 Xiyu Wang, Yuecong Xu, Jianfei Yang, Bihan Wen, Alex C. Kot

The second module compares the outputs of augmented data from the current model to the outputs of weakly augmented data from the source model, forming a novel consistency regularization on the model to alleviate the accumulation of prediction errors.

Autonomous Driving Self-Knowledge Distillation +1

Ambient FSK Backscatter Communications using LTE Cell Specific Reference Signals

no code implementations31 Jan 2023 Jingyi Liao, Xiyu Wang, Kalle Ruttik, Riku Jantti, Phan-Huy Dinh-Thuy

Long Term Evolution (LTE) signal is ubiquitously present in electromagnetic (EM) background environment, which make it an attractive signal source for the ambient backscatter communications (AmBC).

Ambient backscatter communications using LTE cell specific reference signals

no code implementations2 Sep 2022 Kalle Ruttik, Xiyu Wang, Jingyi Liao, Riku Jantti, Phan-Huy Dinh-Thuy

Long Term Evolution (LTE) systems provide ubiquitous coverage for mobile communications, which makes it a promising candidate to be used as a signal source in the ambient backscatter communications.

Calibrating Class Weights with Multi-Modal Information for Partial Video Domain Adaptation

no code implementations13 Apr 2022 Xiyu Wang, Yuecong Xu, Kezhi Mao, Jianfei Yang

It utilizes a novel class weight calibration method to alleviate the negative transfer caused by incorrect class weights.

Domain Adaptation Video Classification

Domain Adaptation via Bidirectional Cross-Attention Transformer

no code implementations15 Jan 2022 Xiyu Wang, Pengxin Guo, Yu Zhang

Specifically, in BCAT, we design a weight-sharing quadruple-branch transformer with a bidirectional cross-attention mechanism to learn domain-invariant feature representations.

Domain Adaptation

Optimum Multi-Antenna Ambient Backscatter Receiver for General Binary-Modulated Signal

no code implementations21 Aug 2020 Xiyu Wang, Hüseyin Yiğitler, Riku Jäntti

Efforts have been put into backscatter signal detection as the detection performance is limited by the low signal-to-interference-plus-noise ratio (SINR) of the signal at the receiver.

Coherent Multi-antenna Receiver for BPSK-modulated Ambient Backscatter Tags

no code implementations21 Aug 2020 Xiyu Wang, Hüseyin Yiğitler, Ruifeng Duan, Estifanos Yohannes Menta, Riku Jäntti

The performance of the proposed receiver is compared with the ideal coherent receiver that has a perfect phase information, and also with the performance of non-coherent receiver, which assumes distributions for ambient signal and phase offset caused by excess length of the backscatter path.

TAG

An Unsupervised Deep Learning Approach for Scenario Forecasts

1 code implementation7 Nov 2017 Yize Chen, Xiyu Wang, Baosen Zhang

Simulation results indicate our method is able to generate scenarios that capture spatial and temporal correlations.

Optimization and Control

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