Results 11 to 20 of about 25,247 (168)

The efficiency of different search strategies in estimating parsimony jackknife, bootstrap, and Bremer support

BMC Evolutionary Biology, 2005
Background For parsimony analyses, the most common way to estimate confidence is by resampling plans (nonparametric bootstrap, jackknife), and Bremer support (Decay indices).
Müller Kai F
doaj   +1 more source

Nonparametric Statistical Thresholding for Sparse Magnetoencephalography Source Reconstructions

Frontiers in Neuroscience, 2012
Uncovering brain activity from MEG data requires solving an ill-posed inverse problem, greatly confounded by noise, interference, and correlated sources.
Julia Parsons Owen, Julia Parsons Owen, Kensuke eSekihara, Srikantan S. Nagarajan, Srikantan S. Nagarajan   +4 more
doaj   +1 more source

Mapping topographic structure in white matter pathways with level set trees.

PLoS ONE, 2014
Fiber tractography on diffusion imaging data offers rich potential for describing white matter pathways in the human brain, but characterizing the spatial organization in these large and complex data sets remains a challenge. We show that level set trees-
Brian P Kent, Alessandro Rinaldo, Fang-Cheng Yeh, Timothy Verstynen   +3 more
doaj   +1 more source

Permutation-Based Analysis of Clinical Variables in Necrotizing Fasciitis Using NPC and Bootstrap

Mathematics
Necrotizing fasciitis (NF) is a rare but aggressive soft tissue infection with high rates of mortality and amputation, making early identification of key prognostic biomarkers essential for clinical management. However, the rarity and heterogeneity of NF
Gianfranco Piscopo, Sai Teja Bandaru, Massimiliano Giacalone, Maria Longobardi   +3 more
doaj   +1 more source

Multimodal MRI Reveals Cerebral and Vascular Amyloid-Driven Myeloarchitectural Disorganization in a Mouse Model of Alzheimer's Disease. [PDF]

NMR Biomed
This study investigates the effect of cerebral and vascular (beta‐amyloid) Aβ on regional myeloarchitecture and lipid composition in a murine model of Alzheimer's disease (AD). The study highlights the feasibility of quantitative MRI and chemical exchange saturation transfer (CEST) imaging to identify multiple biophysical mechanisms involved in ...
Shahid SS, Li X, Dzemidzic M, Jarvis EE, Takieldeen Y, Wang A, Wilcock D, Wu YC.   +7 more
europepmc   +2 more sources

Cost-effectiveness analysis of 3-D computerized tomography colonography versus optical colonoscopy for imaging symptomatic gastroenterology patients.

, 2013
BACKGROUND: When symptomatic gastroenterology patients have an indication for colonic imaging, clinicians have a choice between optical colonoscopy (OC) and computerized tomography colonography with three-dimensional reconstruction (3-D CTC).
A Briggs, A Graser, A Sweet, AI Neugut, B Bressler, B Bressler, B Hofstad, B Hofstad, BCSP Nhs, BP Mulhall, C Dukes, C Hassan, C Hassan, CD Johnson, D Burling, D Lee, DA Johnson, Department of Health and Human Services, DG Fryback, DH Kim, DJ Brenner, DK Rex, DK Rex, DK Rex, EC Obusez, F Loeve, HE Knoernschild, J Dowie, JA DiSario, James Bell, JJ Gonvers, L Ries, LM Almond, M Bose, M Chaparro, M Drummond, M McHugh, Manuel Gomes, ME Zalis, NICE, NICE, NICE, NM Gatto, Owen Epstein, P Consolo, P Tappenden, P Wylie, PB Cotton, Peter Wylie, PJ Pickhardt, PJ Pickhardt, PJ Pickhardt, PJ Pickhardt, PJ Pickhardt, PJ Pickhardt, PJ Pickhardt, RE Gelder Van, RE Schoen, RM Ness, Robert W. Aldridge, S Halligan, S Halligan, S Vijan, SJ Winawer, T Vanni, TR Levin, WS Atkin, WS Atkin   +67 more
core   +1 more source

Quantifying statistical uncertainty in the attribution of human influence on severe weather [PDF]

, 2018
Event attribution in the context of climate change seeks to understand the role of anthropogenic greenhouse gas emissions on extreme weather events, either specific events or classes of events.
Paciorek, Christopher J., Stone, Dáithí A., Wehner, Michael F.   +2 more
core   +4 more sources

DEVELOPMENT OF NONPARAMETRIC PATH FUNCTION USING HYBRID TRUNCATED SPLINE AND KERNEL FOR MODELING WASTE-TO-ECONOMIC VALUE BEHAVIOR

Barekeng
Waste management remains a challenge, including in Batu City, East Java, Indonesia. Rapid population growth and economic activities in the city have resulted in a substantial increase in waste volume.
Usriatur Rohma, Adji Achmad Rinaldo Fernandes, Suci Astutik, Solimun Solimun   +3 more
doaj   +1 more source

Nonparametric Bootstrap Likelihood Estimation to Investigate the Chance Set-Up on Clustering Results

IEEE Open Journal of the Computer Society
Clustering algorithms are widely used in the knowledge discovery domain, but concerns and questions about the validity of the results must be considered.
Ammar Elnour, Wencheng Yang, Yan Li
doaj   +1 more source

Learning the dynamics and time-recursive boundary detection of deformable objects [PDF]

, 2008
We propose a principled framework for recursively segmenting deformable objects across a sequence of frames. We demonstrate the usefulness of this method on left ventricular segmentation across a cardiac cycle.
Cetin, Mujdat, Chan, Raymond, Sun, Walter, Willsky, Alan S., Çetin, Müjdat   +4 more
core   +4 more sources