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	Modello Esponenziale Ponderato di Grafi Aleatori	Analisi ponderata delle reti sociali
Campo	Analisi delle reti	Analisi delle reti
Famiglia	Machine learning	Machine learning
Anno di origine	2012	2004–2010
Ideatore	Krivitsky, P. N.	Barrat, A.; Opsahl, T. et al.
Tipo	Statistical network model	Network analysis framework
Fonte seminale	Krivitsky, P. N. (2012). Exponential-family random graph models for valued networks. Electronic Journal of Statistics, 6, 1100–1128.	Barrat, A., Barthélemy, M., Pastor-Satorras, R., & Vespignani, A. (2004). The architecture of complex weighted networks. Proceedings of the National Academy of Sciences, 101(11), 3747–3752.
Alias	W-ERGM, valued ERGM, weighted p-star model, valued exponential random graph model	Weighted SNA, valued network analysis, tie-strength network analysis, weighted graph analysis
Correlati	4	6
Sintesi	The Weighted Exponential Random Graph Model (W-ERGM) extends the classic binary ERGM framework to networks whose edges carry quantitative values — such as frequency of contact, trade volume, or collaboration intensity. It models the entire valued-edge network as a probability distribution defined over all possible weighted graphs, enabling researchers to test whether structural patterns such as reciprocity, transitivity, or degree distribution arise beyond what chance alone would produce.	Weighted Social Network Analysis extends classical SNA by assigning numeric values — weights — to ties between actors, capturing tie strength, interaction frequency, or resource flow. Rather than treating all connections as equal, it reveals who holds privileged positions by virtue of the intensity, not merely the existence, of their relationships.