Results 181 to 190 of about 17,625 (278)

A practical guide to species trend detection with unstructured data using local frequency scaling (Frescalo)

Ecography, Volume 2026, Issue 7, July 2026.
Accurately measuring biodiversity change remains a central challenge in ecology. Beyond the general idea of quantifying temporal species frequency changes, several sampling‐related biases in data collection remain key methodological challenges to consider. Long‐term standardized ecological data are rare, and most available datasets exhibit considerable
Romain Goury, Diana E. Bowler, Colin Harrower, Tamara Münkemüller, Jeanne Vallet, Jon M. Yearsley, Wilfried Thuiller, Oliver L. Pescott   +7 more
wiley   +1 more source

mRNALocator-imb: an imbalance-tolerant ensemble framework integrating random forest and transformer for mRNA subcellular localization prediction. [PDF]

Front Genet
Hu J, Liu H, Wang L, Wu H.
europepmc   +1 more source

Accelerating MRI With Longitudinally-Informed Latent Posterior Sampling. [PDF]

Magn Reson Med
Urman Y, Shah Z, Kumar A, Soares BP, Setsompop K.   +4 more
europepmc   +1 more source

A general study of undersampling problems in Monte Carlo calculations

, 1989
Various techniques devised to flag undersampling conditions were investigated. Undersampling conditions can often lead to underestimation and a solution which can be significantly smaller than the true solution but the estimate of the standard deviation ...
Vieria, Wilson José
core  

A MR Fingerprinting Development Kit for Quantitative 3D Brain Imaging

Journal of Magnetic Resonance Imaging, Volume 64, Issue 1, Page 209-217, July 2026.
ABSTRACT Background Magnetic resonance fingerprinting (MRF) is an emerging quantitative imaging technique that enables multiparametric tissue characterization, but its adoption has been hindered by the complexity of data acquisition and post‐processing. These technical and implementation challenges have limited its broader clinical deployment.
Rasim Boyacioglu, Thomas Kluge, Guido Buonincontri, Wei‐Ching Lo, Stephan Kannengiesser, Mathias Nittka, Arashdeep Kaur, Andrew Dupuis, Dan Ma, Chaitra Badve, Mark A. Griswold, Yong Chen   +11 more
wiley   +1 more source

A bearing fault diagnosis method for complex system based on improved extended belief rule base. [PDF]

Sci Rep
Yan X, Li N, Nan S, Yu Y, Dai R.
europepmc   +1 more source

Rare event detection by progressive clustering undersampling. [PDF]

PLoS One
Abuzeid A, Jolkver E.
europepmc   +1 more source

Phase‐Pole‐Free Images and Smooth Coil Sensitivity Maps by Regularized Nonlinear Inversion

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 134-145, July 2026.
ABSTRACT Purpose Phase singularities are a common problem in image reconstruction with auto‐calibrated sensitivities due to an inherent ambiguity of the estimation problem. The purpose of this work is to develop a method for detecting and correcting phase poles in non‐linear inverse (NLINV) reconstruction of MR images and coil sensitivity maps ...
Moritz Blumenthal, Martin Uecker
wiley   +1 more source

Accelerating CEST MRI through complementary undersampling and multi-offset transformer reconstruction. [PDF]

Commun Eng
Liu H, Chen Z, Law LH, Liu Y, Wang Z, Wang J, Zhang Y, Shen D, Huang J, Chan KWY.   +9 more
europepmc   +1 more source

Autonomy for MRI Field Cameras: Synchronization, Self‐Calibration, and Sequence Detection

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 485-498, July 2026.
ABSTRACT Purpose This work aims to provide a workflow for operating NMR field probes in MR scanners independently of pulse programming, scanner TTL trigger pulses and dedicated calibration sequences. Methods An independent timing system and limited prior knowledge about relative probe positions enable synchronous field measurement, probe position ...
Oskar Björkqvist, Klaas P. Pruessmann
wiley   +1 more source