Results 31 to 40 of about 2,518,393 (263)

Random sampling of plane partitions

open access: yes, 2009
This article presents uniform random generators of plane partitions according to the size (the number of cubes in the 3D interpretation). Combining a bijection of Pak with the method of Boltzmann sampling, we obtain random samplers that are slightly ...
Bodini, Olivier   +2 more
core   +2 more sources

Group representations that resist random sampling [PDF]

open access: yes, 2014
We show that there exists a family of groups $G_n$ and nontrivial irreducible representations $\rho_n$ such that, for any constant $t$, the average of $\rho_n$ over $t$ uniformly random elements $g_1, \ldots, g_t \in G_n$ has operator norm $1$ with ...
Lovett, Shachar   +2 more
core   +1 more source

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed   +5 more
wiley   +1 more source

Just Another Hour on TikTok: ID sampling to obtain a complete slice of TikTok

open access: yesJournal of Quantitative Description: Digital Media
TikTok is now a massive platform, and has a deep impact on global events. Despite preliminary studies, issues remain in determining fundamental characteristics of the platform. We develop a method to extract a representative sample of >99% of posts from
Benjamin Steel   +3 more
doaj   +1 more source

Modified Systematic Sampling with Multiple Random Starts

open access: yesRevstat Statistical Journal, 2018
Systematic sampling has been facing two problems since its beginning; situational complications, e.g., population size N not being a multiple of the sample size n, and unavailability of unbiased estimators of population variance for all possible ...
Sat Gupta , Zaheen Khan , Javid Shabbir
doaj   +1 more source

Visual Tracking With Online Assessment and Improved Sampling Strategy

open access: yesIEEE Access, 2020
The kernelized correlation filter (KCF) is one of the most successful trackers in computer vision today. However its performance may be significantly degraded in a wide range of challenging conditions such as occlusion and out of view.
Meng Ding   +4 more
doaj   +1 more source

Resolving the Raven Paradox: Simple Random Sampling, Stratified Random Sampling, and Inference to the Best Explanation [PDF]

open access: yes, 2021
Simple random sampling resolutions of the raven paradox relevantly diverge from scientific practice. We develop a stratified random sampling model, yielding a better fit and apparently rehabilitating simple random sampling as a legitimate idealization.
Ward, Barry
core   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser   +6 more
wiley   +1 more source

The Sampling Bias in Random Digit Dialing

open access: yesIASSIST Quarterly, 1988
The Sampling Bias in Random Digit ...
A. Dianne Schmidley
doaj   +1 more source

Topology-guided sampling of nonhomogeneous random processes

open access: yes, 2010
Topological measurements are increasingly being accepted as an important tool for quantifying complex structures. In many applications, these structures can be expressed as nodal domains of real-valued functions and are obtained only through experimental
Mischaikow, Konstantin, Wanner, Thomas
core   +1 more source

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