Results 11 to 20 of about 33,884,561 (405)
Generalizing Face Forgery Detection with High-frequency Features [PDF]
Computer Vision and Pattern Recognition, 2021 Current face forgery detection methods achieve high accuracy under the within-database scenario where training and testing forgeries are synthesized by the same algorithm. However, few of them gain satisfying performance under the cross-database scenario
Yucheng Luo +3 more
semanticscholar +1 more source
Improving Vision Transformers by Revisiting High-frequency Components [PDF]
European Conference on Computer Vision, 2022 The transformer models have shown promising effectiveness in dealing with various vision tasks. However, compared with training Convolutional Neural Network (CNN) models, training Vision Transformer (ViT) models is more difficult and relies on the large ...
Jiawang Bai +5 more
semanticscholar +1 more source
Detecting high-frequency gravitational waves with microwave cavities [PDF]
Physical Review D, 2021 We give a detailed treatment of electromagnetic signals generated by gravitational waves (GWs) in resonant cavity experiments. Our investigation corrects and builds upon previous studies by carefully accounting for the gauge dependence of relevant ...
A. Berlin +6 more
semanticscholar +1 more source
A Reassessment of Monetary Policy Surprises and High-Frequency Identification
NBER macroeconomics annual, 2022 High-frequency changes in interest rates around FOMC announcements are an important tool for identifying the effects of monetary policy on asset prices and the macroeconomy.
M. Bauer, Eric T. Swanson
semanticscholar +1 more source
U-Sleep: resilient high-frequency sleep staging
npj Digital Medicine, 2021 Sleep disorders affect a large portion of the global population and are strong predictors of morbidity and all-cause mortality. Sleep staging segments a period of sleep into a sequence of phases providing the basis for most clinical decisions in sleep ...
Mathias Perslev +5 more
semanticscholar +1 more source
Quantifying the High-Frequency Trading "Arms Race"
Quarterly Journal of Economics, 2021 We use stock exchange message data to quantify the negative aspect of high-frequency trading, known as “latency arbitrage.” The key difference between message data and widely familiar limit order book data is that message data contain attempts to trade
M. Aquilina, Eric Budish, P. O’Neill
semanticscholar +1 more source
High-frequency ultrasound in clinical dermatology: a review
The Ultrasound Journal, 2021 Background Ultrasound was first introduced in clinical dermatology in 1979. Since that time, ultrasound technology has continued to develop along with its popularity and utility.
J A Levy +5 more
semanticscholar +1 more source
Review of High-Frequency High-Voltage-Conversion-Ratio DC–DC Converters
IEEE Journal of Emerging and Selected Topics in Industrial Electronics, 2021 The development of high-frequency power converters is continuously improving their power density, efficiency and fast dynamic response. Among them, high-voltage-conversion-ratio (HVCR) dc–dc converters are widely used in high gain, i.e., step-up/-down or
Yueshi Guan +3 more
semanticscholar +1 more source
High-Frequency Component Helps Explain the Generalization of Convolutional Neural Networks [PDF]
Computer Vision and Pattern Recognition, 2019 We investigate the relationship between the frequency spectrum of image data and the generalization behavior of convolutional neural networks (CNN). We first notice CNN's ability in capturing the high-frequency components of images.
Haohan Wang +3 more
semanticscholar +1 more source
Efficient Frequency Domain-based Transformers for High-Quality Image Deblurring [PDF]
Computer Vision and Pattern Recognition, 2022 We present an effective and efficient method that explores the properties of Transformers in the frequency domain for high-quality image deblurring. Our method is motivated by the convolution theorem that the correlation or convolution of two signals in ...
Lingshun Kong +4 more
semanticscholar +1 more source