So sánh phương pháp

	Mô hình Khối Ngẫu nhiên (Stochastic Block Model - SBM)	Mạng Hồi quy Đồ thị (Graph Attention Network - GAT)	Phân cụm phân cấp
Lĩnh vực	Phân tích mạng lưới	Học sâu	Học máy
Họ	Process / pipeline	Machine learning	Machine learning
Năm ra đời	1983	2018	1963
Người khởi xướng	—	Veličković, P. et al.	Ward, J. H.
Loại	Probabilistic generative graph model	Graph neural network (attention-based)	Unsupervised clustering (agglomerative)
Công trình gốc	Holland, P.W., Laskey, K.B. & Leinhardt, S. (1983). Stochastic Blockmodels: First Steps. Social Networks, 5(2), 109-137.	Veličković, P. et al. (2018). Graph Attention Networks. ICLR.	Ward, J. H. (1963). Hierarchical Grouping to Optimize an Objective Function. Journal of the American Statistical Association, 58(301), 236–244.
Tên gọi khác	SBM, degree-corrected SBM, DCSBM, Stokastik Blok Modeli (SBM)	Graf Dikkat Ağı (GAT), GAT, graph attention network, attention-based graph neural network	Hiyerarşik Kümeleme, hiyerarşik kümeleme, agglomerative clustering, hierarchical agglomerative clustering
Liên quan	7	4	4
Tóm tắt	The Stochastic Block Model (SBM), introduced by Holland, Laskey and Leinhardt (1983), is a probabilistic generative model for graphs that assigns nodes to latent blocks and parametrically estimates the connection probabilities between blocks. It is the foundational approach for community detection, core-periphery identification, and hierarchical structure discovery in network analysis.	The Graph Attention Network (GAT), introduced by Veličković and colleagues in 2018, is a graph neural network variant that learns how much importance to assign to each neighbouring node through a self-attention mechanism. On heterogeneous neighbourhoods and relational classification it produces results superior to graph convolutional networks (GCN).	Hierarchical clustering is an unsupervised method that groups observations into nested clusters and draws the result as a dendrogram, so the number of clusters need not be fixed in advance. Its agglomerative form rests on the objective-function grouping criterion introduced by Joe Ward in 1963.