Σύγκριση μεθόδων

	Ανάλυση Κεντρικότητας	Κεντρικότητα PageRank
Πεδίο	Ανάλυση Δικτύων	Ανάλυση Δικτύων
Οικογένεια	Process / pipeline	Machine learning
Έτος προέλευσης	1979	1999
Δημιουργός	Linton C. Freeman	Page, Brin, Motwani & Winograd
Τύπος	Descriptive / exploratory network measure family	Iterative link-based centrality algorithm
Θεμελιώδης πηγή	Freeman, L.C. (1979). Centrality in Social Networks: Conceptual Clarification. Social Networks, 1(3), 215-239.	Page, L., Brin, S., Motwani, R., & Winograd, T. (1999). The PageRank citation ranking: Bringing order to the web. Stanford InfoLab Technical Report.
Εναλλακτικές ονομασίες	Merkeziyet Analizi (Degree, Betweenness, Eigenvector), node centrality, centrality measures, graph centrality	Google PageRank, Random Surfer Model, Link-Based Ranking, PageRank Merkeziliği
Συναφείς	5	2
Σύνοψη	Centrality analysis is a family of network-analytic measures, formalized by Freeman (1979), that quantifies the structural importance of individual nodes within a graph. Each centrality index captures a distinct mechanism of influence: degree centrality reflects direct connectivity, betweenness centrality identifies nodes that broker information flow, closeness centrality captures proximity to all others, and eigenvector centrality (along with PageRank) rewards connection to highly connected neighbors.	PageRank is a link-based centrality algorithm that assigns an importance score to each node in a directed graph by measuring how many high-quality nodes point to it. Introduced by Larry Page, Sergey Brin, Rajeev Motwani, and Terry Winograd at Stanford University in 1999, it became the mathematical foundation of the Google search engine and remains one of the most influential algorithms in network science and information retrieval.