Results 41 to 50 of about 1,047,164 (269)

Optimizing Metamaterial Inverse Design with 3D Conditional Diffusion Model and Data Augmentation

Advanced Materials Technologies, EarlyView.
A generative AI model, the 3D conditional diffusion model (3D‐CDM), is introduced to enhance the inverse design of voxel‐based metamaterials. A data augmentation technique based on topological perturbation expands the dataset, further improving generation quality and accuracy.
Xiaoyang Zheng, Junichiro Shiomi, Takayuki Yamada   +2 more
wiley   +1 more source

An Experiment on Autoregressive and Threshold Autoregressive Models with Non-Gaussian Error with Application to Realized Volatility

Economies, 2019
This article explores the fitting of Autoregressive (AR) and Threshold AR (TAR) models with a non-Gaussian error structure. This is motivated by the problem of finding a possible probabilistic model for the realized volatility.
Ziyi Zhang, Wai Keung Li
doaj   +1 more source

Augmented Oscillations in QT Interval Duration Predict Mortality Post Myocardial Infarction Independent of Heart Rate

Frontiers in Physiology, 2020
ObjectiveThis study seeks to decompose QT variability (QTV) into physiological sources and assess their role for risk stratification in patients post myocardial infarction (MI).
Fatima J. El-Hamad, Safa Y. Bonabi, Alexander Müller, Alexander Steger, Georg Schmidt, Mathias Baumert   +5 more
doaj   +1 more source

Resonance Detection Method and Realization of Bearing Fault Signal Based on Kalman Filter and Spectrum Analysis

Applied Sciences, 2023
The rolling bearing is an important part of mechanical equipment, and its performance significantly affects the quality and life of the mechanical equipment.
Xinxin Chen, Shuli Sun
doaj   +1 more source

CUNI Non-Autoregressive System for the WMT 22 Efficient Translation Shared Task [PDF]

arXiv, 2022
We present a non-autoregressive system submission to the WMT 22 Efficient Translation Shared Task. Our system was used by Helcl et al. (2022) in an attempt to provide fair comparison between non-autoregressive and autoregressive models. This submission is an effort to establish solid baselines along with sound evaluation methodology, particularly in ...
arxiv  

Immunity Debt for Seasonal Influenza After the COVID‐19 Pandemic and as a Result of Nonpharmaceutical Interventions: An Ecological Analysis and Cohort Study

Advanced Science, EarlyView.
This study provides support for the immunity debt hypothesis, revealing a 131.72% increase in influenza rates during winter and a 161.23% rise in summer, 1 year following the global easing of COVID‐19 restrictions. This study offers empirical evidence of immunity debt on a global level, highlighting the importance of incorporating this concept into the
Li Chen, Yuchen Guo, Kim López‐Güell, Jun Ma, Yanhui Dong, Junqing Xie, Daniel Prieto Alhambra   +6 more
wiley   +1 more source

CPL‐Diff: A Diffusion Model for De Novo Design of Functional Peptide Sequences with Fixed Length

Advanced Science, EarlyView.
This study presents a diffusion model for generating functional peptide sequence lengths using mask control. The model can generate antimicrobial, antifungal, and antiviral peptides with specific lengths on demand. The model learns the structure of peptides better and generates peptides with better physicochemical properties, and the model has good ...
Zhenjie Luo, Aoyun Geng, Leyi Wei, Quan Zou, Feifei Cui, Zilong Zhang   +5 more
wiley   +1 more source

Dissecting the Spatial and Single‐Cell Transcriptomic Architecture of Cancer Stem Cell Niche Driving Tumor Progression in Gastric Cancer

Advanced Science, EarlyView.
A single‐cell and spatial transcriptional atlas reveals the architecture of human gastric cancer stem cell (CSC) niche and the developmental trajectory of CSCs. These CSCs interact with immunosuppressive immune cells thereby constructing immune‐suppressive niche, and inflammatory cancer‐associated fibroblast (iCAFs) to enhance stemness through ...
Guangyu Zhang, Xin Zhang, Wenting Pan, Xizhao Chen, Lingfei Wan, Chunjie Liu, Yuting Yong, Yue Zhao, Shuli Sang, Lihua Zhang, Sheng Yao, Yushu Guo, Mingmei Wang, Xinhui Wang, Guangdun Peng, Xinlong Yan, Yanchun Wang, Min Zhang   +17 more
wiley   +1 more source

Alpha-Stable Autoregressive Modeling of Chua's Circuit in the Presence of Heavy-Tailed Noise

Chaos Theory and Applications, 2023
This study presents alpha-stable autoregressive (AR) modeling of the dynamics of Chua's circuit in the presence of heavy-tailed noise. The parameters of the AR time series are estimated using the covariation-based Yule-Walker method, and the parameters ...
Deniz Kutluay, Serpil Yılmaz
doaj   +1 more source

DiffMC‐Gen: A Dual Denoising Diffusion Model for Multi‐Conditional Molecular Generation

Advanced Science, EarlyView.
DiffMC‐Gen, a dual‐diffusion model for 2D and 3D molecular generation, simultaneously optimizes multiple key objectives across the drug design process, enabling the generation of novel, target‐specific small‐molecule ligands with high therapeutic potential.
Yuwei Yang, Shukai Gu, Bo Liu, Xiaoqing Gong, Ruiqiang Lu, Jiayue Qiu, Xiaojun Yao, Huanxiang Liu   +7 more
wiley   +1 more source