Results 21 to 30 of about 48,154 (256)

Analysis of amino acids network based on transition and transversion mutation of codons [PDF]

open access: yesNetwork Biology, 2021
In this paper, we have developed a network of 20 amino acids based on a distance matrix of amino acids. This distance matrix is obtained by considering the transition and transversion mutation of codons.
Tazid Ali, Chandra Borah
doaj  

Analisis Perbandingan Kesentralan Graf Dengan Degree, Eigenvector, dan Beta Centrality

open access: yesJurnal Matematika Integratif, 2022
Peninjauan kesentralan pada graf dapat dilakukan untuk berbagai jenis graf dengan metode yang bervariasi dengan penerapannya di berbagai bidang. Graf yang diteliti untuk ditinjau kesentralan simpulnya adalah graf sederhana, reguler, berarah, dan bertanda.
Valerie ​Valerie   +2 more
doaj   +1 more source

How do centrality measures help to predict similarity patterns in molecular chemical structural graphs?

open access: yesArtificial Intelligence Chemistry, 2023
The proposed work uses centrality measures based heuristic method to improve the efficiency of the solution for the similarity search problem in molecular chemical graphs by effectively identifying central candidate or representative candidate nodes ...
Nirmala Parisutham
doaj   +1 more source

Centralizers and Pseudo-Degree Functions [PDF]

open access: yes, 2016
We study centralizers in certain algebras with valuation in order to generalize results by Hellstr m and Silvestrov on centralizers in graded algebras. We prove that the centralizer of an element in the studied algebras is a free module over a certain ring. Under further assumptions we obtain that the centralizer is also commutative.
openaire   +2 more sources

Extending adamic adar for cold-start problem in link prediction based on network metrics

open access: yesIJAIN (International Journal of Advances in Intelligent Informatics), 2022
The cold-start problem is a condition for a new node to join a network with no available information or an isolated node. Most studies use topological network information with the Triadic Closure principles to predict links in future networks.
Herman Yuliansyah   +2 more
doaj   +1 more source

In Social Network Analysis, Which Centrality Index Should I Use?: Theoretical Differences and Empirical Similarities among Top Centralities

open access: yesJournal of Methods and Measurement in the Social Sciences, 2018
This research examines four frequently used centrality indices—degree, closeness, betweenness, and eigenvectors—to understand the extent to which their clear theoretical distinctions are reflected in differences in empirical performance.
Dawn Iacobucci   +3 more
doaj   +1 more source

CDA: A Clustering Degree Based Influential Spreader Identification Algorithm in Weighted Complex Network

open access: yesIEEE Access, 2018
Identifying the most influential spreaders in a weighted complex network is vital for optimizing utilization of the network structure and promoting the information propagation.
Qian Wang   +5 more
doaj   +1 more source

Changes in sensorimotor regions of the cerebral cortex in congenital amusia: a case-control study

open access: yesNeural Regeneration Research, 2021
Perceiving pitch is a central function of the human auditory system; congenital amusia is a disorder of pitch perception. The underlying neural mechanisms of congenital amusia have been actively discussed.
Jun-Jie Sun   +6 more
doaj   +1 more source

Inter-Provincial Railroad Network in China [PDF]

open access: yesJournal of International Logistics and Trade, 2012
Using Social Network Analysis (SNA), this paper examines the inter-provincial logistics relationships in China. Based on the annual data of inter-provincial railway logistics quantity during the period 1998-2009, the degree of interconnection between ...
Jun-Yeop Lee, Shuyun Wang
doaj   +1 more source

The Dynamic Influence of High-Speed Rail on the Spatial Structure of Economic Networks and the Underlying Mechanisms in Northeastern China

open access: yesISPRS International Journal of Geo-Information, 2021
Drawing on 185 cities in the northeastern region of China, this paper improves the radiation model by incorporating the accessibility index to characterize the asymmetric process of economic linkages before HSR in 2007 and after HSR in 2016.
Sanwei He, Lei Mei, Lei Wang
doaj   +1 more source

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