Results 11 to 20 of about 6,849 (89)

2-Hopper: Accurately Estimate Individual and Social Attributes of Social Networks With Fewer Repeats via Random Walk [PDF]

open access: yesIEEE Access, 2019
Random-walk based sampling is widely used to characterize large graphs by producing samples in the form of nodes. However, existing random-walk based sampling methods only focus on the estimation accuracy of structural properties but suffer from repetitive samples which have adverse effects on obtaining accurate information about the structures over ...
Lingling Zhang 0006   +3 more
openaire   +2 more sources

A Random Walk Approach for Avoiding Unwanted Users in Competitive Social Network

open access: yesIEEE Access, 2020
How to detect influential customers to broadcast advertisements to the maximum range is a key issue in effective viral marketing. If multiple companies sell the same product in viral marketing campaigns, there was competition between them.
Wei Liu   +4 more
doaj   +1 more source

Health effects and cost-effectiveness of a multilevel physical activity intervention in low-income older adults; results from the PEP4PA cluster randomized controlled trial

open access: yesInternational Journal of Behavioral Nutrition and Physical Activity, 2022
Background Older adults are the least active population in the U.S. Low-income communities have fewer physical activity (PA) resources, contributing to less PA and increased chronic disease risk. This study assessed the effect of the multilevel, peer-led,
Katie Crist   +11 more
doaj   +1 more source

Enhanced MCL Clustering

open access: yesمجلة علوم ذي قار, 2019
  The goal of graph clustering is to partition vertices in a large graph into different clusters based on various criteria such as vertex connectivity or neighborhood similarity.
Mouiad Abid Hani
doaj   +4 more sources

Kinematic effects of sensorimotor foot orthoses on the gait of patients with patellofemoral pain—a randomized controlled trial

open access: yesFrontiers in Sports and Active Living
IntroductionFoot orthoses (FOs) are a noninvasive and cost-effective medical treatment that positively influence biomechanical factors, such as the kinematics of the lower extremities. Nevertheless, there is a research gap regarding the influence of FOs,
Steven Simon   +6 more
doaj   +1 more source

Decision-making under heat stress: Examining risk-taking and reflection impulsivity dynamics in the context of fatigue and vitality

open access: yesCurrent Issues in Sport Science
Introduction & Purpose Acute high temperatures and physical activity induce physiological and psychophysiological stress (Périard et al., 2021). In athletes or professions like firefighting, core body temperatures often exceed 38.5 °C (Barr et al ...
Jannic Wälde   +3 more
doaj   +1 more source

Repeated measurements and random scattering in quantum walks

open access: yesJournal of Physics A: Mathematical and Theoretical
Abstract We study the effect of random scattering in quantum walks on a finite graph and compare it with the effect of repeated measurements. To this end, a constructive approach is employed by introducing a localized and a delocalized basis for the underlying Hilbert space.
openaire   +2 more sources

Reduced Hair and Salivary Cortisol Concentrations Associated with Improved Emotional Well-Being Following Repeated Forest Walking: A Randomized Intervention Trial in Older Adults

open access: yes
Abstract The main hypothesis of this study in older adults is that repeated walks in a forest but not an urban environment for one month lead to reduced chronic stress compared to the previous month without any intervention. This was achieved by the measurement of cumulative cortisol concentrations in hair.
Daniela Jezova   +7 more
openaire   +1 more source

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