Tensor Decompositions for Analyzing Multi-link Graphs
Tensor Decompositions for Analyzing Multi-link Graphs
Tensor Decompositions for Analyzing Multi-link Graphs
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Tucker DecompositionThree-mode factor analysis [Tucker, 1966]Three-mode PCA [Kroonenberg, et al. 1980]N-mode PCA [Kapteyn et al., 1986]Higher-order SVD (HO-SVD) [De Lathauwer et al., 2000]K x TCI x J x KI x RJ x S≈AR x S x TBGiven A, B, C, the optimal core is:• A, B, and C may be orthonormal (generally, full column rank)• is not diagonal• Decomposition is not unique