Results 21 to 30 of about 627,745 (234)

Minimal mass-size of a stable 3He cluster [PDF]

open access: yes, 2004
The minimal number of 3He atoms required to form a bound cluster has been estimated by means of a Diffusion Monte Carlo procedure within the fixed-node approximation.
Guardiola, R., Navarro, J.
core   +3 more sources

Mining Important Nodes in Directed Weighted Complex Networks [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2017
In complex networks, mining important nodes has been a matter of concern by scholars. In recent years, scholars have focused on mining important nodes in undirected unweighted complex networks. But most of the methods are not applicable to directed weighted complex networks. Therefore, this paper proposes a Two-Way-PageRank method based on PageRank for
Yunyun Yang, Gang Xie, Jun Xie
openaire   +3 more sources

Hybrid weighted communication network node importance evaluation method

open access: yesFrontiers in Physics, 2023
Communication networks are used as an important guarantee for information interaction and efficient collaboration within many fields and systems; however, under information technology conditions, the destruction of a number of nodes in a network may have
Gan Tian   +4 more
doaj   +1 more source

Node importance identification for uncertain networks

open access: yes, 2022
Abstract This paper proposes the concepts of uncertain strength, uncertain degree, and uncertain clustering coefficient under uncertain networks, along with the proposes uncertain k -shell decomposition algorithm and uncertain h -index. Susceptible-Infected-Recovered (SIR) epidemic model is used to simulate the propagation process under ...
Yulin Yang, Wanping Li, Yuhong Sheng
openaire   +1 more source

Robustness of Network Measures to Link Errors [PDF]

open access: yes, 2013
In various applications involving complex networks, network measures are employed to assess the relative importance of network nodes. However, the robustness of such measures in the presence of link inaccuracies has not been well characterized.
Girvan, Michelle, Ott, Ed, Platig, John
core   +1 more source

On Secure Distributed Data Storage Under Repair Dynamics [PDF]

open access: yes, 2010
We address the problem of securing distributed storage systems against passive eavesdroppers that can observe a limited number of storage nodes. An important aspect of these systems is node failures over time, which demand a repair mechanism aimed at ...
Pawar, Sameer   +2 more
core   +1 more source

Optimal µPMU Placement Considering Node Importance and Multiple Deployed Monitoring Devices in Distribution Networks

open access: yesEnergies
The placement of micro phasor measurement units in an active distribution network can improve the monitoring performance of the system. However, the price and placement cost of micro phasor measurement units are high, so existing research mostly focuses ...
Ruifeng Zhao   +9 more
doaj   +1 more source

Estimating Node Importance in Knowledge Graphs Using Graph Neural Networks

open access: yes, 2019
How can we estimate the importance of nodes in a knowledge graph (KG)? A KG is a multi-relational graph that has proven valuable for many tasks including question answering and semantic search.
Dong, Xin Luna   +4 more
core   +1 more source

Weighted Spectral Embedding of Graphs [PDF]

open access: yes, 2018
We present a novel spectral embedding of graphs that incorporates weights assigned to the nodes, quantifying their relative importance. This spectral embedding is based on the first eigenvectors of some properly normalized version of the Laplacian.
Bonald, Thomas   +2 more
core   +2 more sources

Link prediction method for dynamic networks based on matching degree of nodes

open access: yes网络与信息安全学报, 2022
The research of dynamic evolutionary trends and temporal characteristics in real networks which are important part of the real world is a hot research issue nowadays.As a typical research tool in the field of network science, link prediction technique ...
Cong LI   +4 more
doaj   +3 more sources

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