IN: a series of th order tensors, ,   . Define Matrices
( ,   ) with orthogonal column vectors.
OUT: Rank-1 basis tensor ,   depends on convergence.
Iterate for until convergence
 (1) Initial values: , define .
 (2) (a) Initial values: and whose columns are determined as the first leading
      eigenvectors of the matrices .
   (b) Iterate for until convergence
    (i) Maximize ,  
      Solution: whose columns are determined as the first leading eigenvectors
      of
      Set .
   (ii) Maximize ,  
       Solution: whose columns are determined as the first leading eigenvectors
       of
       Set .
       
   (iii) Maximize ,
       
       Solution: whose columns are determined as the first leading eigenvectors
       of
       Set .
       
   (iv) Maximize ,  
       Solution: whose columns are determined as the first leading eigenvectors
       of
       Set .
   
  (c) Set ,   .
 (3) Size of is , each basis .
 (4) For each data, coefficient on this basis .
 (5) For each data .
Algorithm 2: Iteration algorithm of LTC.