Research Article
Improved Coupled Tensor Factorization with Its Applications in Health Data Analysis
Table 1
List of symbols used in this paper.
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| | tensor, matrix, column vector | | mode- matricization of a tensor | | the nth column vector of | | the nth matrix in the sequence , ,..., | | Outer product | | Outer product of multiple matrices | | Hadamard product | | the set of real numbers | | transpose of | | for matrices and vectors, it refers to the analogous Frobenius and two-norm, respectively | | missing index tensor | | number of entries in matrix |
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