Results 31 to 40 of about 1,046,371 (288)

A Methodology to Train a Convolutional Neural Network-Based Low-Dose CT Denoiser With an Accurate Image Domain Noise Insertion Technique

IEEE Access, 2022
To mitigate the public health risks associated with the increasing utilization of computed tomography (CT), it is desirable to implement a low-dose scanning protocol.
Byeongjoon Kim, Sarah E. Divel, Norbert J. Pelc, Jongduk Baek   +3 more
doaj   +1 more source

Evolution and anti-evolution in a minimal stock market model [PDF]

, 2003
We present a novel microscopic stock market model consisting of a large number of random agents modeling traders in a market. Each agent is characterized by a set of parameters that serve to make iterated predictions of two successive returns. The future
Arthur, Bachelier, Bouchaud, Busshaus, Caldarelli, Challet, Cont, Donangelo, Egenter, Ghashghaie, K Pawelzik, Levy, Levy, Lux, Mandelbrot, Mantegna, Mantegna, Maslov, Palmer, R Rothenstein   +19 more
core   +1 more source

Hyperspectral Target Detection With Target Prior Augmentation and Background Suppression-Based Multidetector Fusion

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Hyperspectral target detection (HTD) methods aim to exploit the abundant hyperspectral information to distinguish the key target pixels from multifarious background pixels.
Tan Guo, Fulin Luo, Jiakun Guo, Yule Duan, Xinjian Huang, Guangyao Shi   +5 more
doaj   +1 more source

Emitter-Length Scalable Small Signal and Noise Modeling for InP Heterojunction Bipolar Transistors

IEEE Access, 2019
In this paper, an emitter-length scalable noise and small signal model for InP heterojunction bipolar transistor (HBT) are presented. A set of scalable expressions for noise parameters based on hybrid-π topology in the low-frequency ranges are ...
Ao Zhang, Jianjun Gao
doaj   +1 more source

Scalable Group Level Probabilistic Sparse Factor Analysis

, 2016
Many data-driven approaches exist to extract neural representations of functional magnetic resonance imaging (fMRI) data, but most of them lack a proper probabilistic formulation.
Eriksen, Casper T., Frøsig, Jacob, Hinrich, Jesper L., Kristensen, Marco D. F., Madsen, Kristoffer H., Mørup, Morten, Nielsen, Søren F. V., Riis, Nicolai A. B., Schmidt, Mikkel N.   +8 more
core   +1 more source

FxRLS Algorithms Based Active Control of Impulsive Noise With Online Secondary Path Modeling

IEEE Access, 2021
Active noise control algorithms undergo stability problems in the presence of impulsive noise. This paper investigates such algorithms with online secondary path modeling for impulsive noise and varying acoustic paths.
Fareeha Jabeen, Alina Mirza, Ayesha Zeb, Muhammad Imran, Farkhanda Afzal, Ayesha Maqbool   +5 more
doaj   +1 more source

Regulatory activity revealed by dynamic correlations in gene expression noise [PDF]

, 2008
Gene regulatory interactions are context dependent, active in some cellular states but not in others. Stochastic fluctuations, or 'noise', in gene expression propagate through active, but not inactive, regulatory links^(1,2).
Cox, Robert Sidney, III, Dunlop, Mary J., Elowitz, Michael B., Levine, Joseph H., Murray, Richard M.   +4 more
core   +2 more sources

Noise and signal modeling of various VCSEL structures [PDF]

, 2004
Current evolution in Datacoms and Gigabit Ethernet have made 850nm Vertical Cavity Surface Emitting Lasers(VCSEL) the most important and promising emitter.
Grabherr, Martin, Mollier, Jean-Claude, Perchoux, Julien, Rissons, Angélique   +3 more
core   +1 more source

Low Frequency Systemic Hemodynamic “Noise” in Resting State BOLD fMRI: Characteristics, Causes, Implications, Mitigation Strategies, and Applications

Frontiers in Neuroscience, 2019
Advances in functional magnetic resonance imaging (fMRI) acquisition have improved signal to noise to the point where the physiology of the subject is the dominant noise source in resting state fMRI data (rsfMRI).
Yunjie Tong, Lia M. Hocke, Lia M. Hocke, Blaise B. Frederick, Blaise B. Frederick   +4 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source