tensorflow :: operaciones :: MatrixSetDiagV2

#include <array_ops.h>

Devuelve un tensor de matriz por lotes con nuevos valores diagonales por lotes.

Resumen

Dada la input y la diagonal , esta operación devuelve un tensor con la misma forma y valores que la input , excepto por las diagonales especificadas de las matrices más internas. Estos serán sobrescritos por los valores en diagonal .

input tiene r+1 dimensiones [I, J, ..., L, M, N] . Cuando k es escalar o k[0] == k[1] , la diagonal tiene r dimensiones [I, J, ..., L, max_diag_len] . De lo contrario, tiene r+1 dimensiones [I, J, ..., L, num_diags, max_diag_len] . num_diags es el número de diagonales, num_diags = k[1] - k[0] + 1 . max_diag_len es la diagonal más larga del rango [k[0], k[1]] , max_diag_len = min(M + min(k[1], 0), N + min(-k[0], 0))

La salida es un tensor de rango k+1 con dimensiones [I, J, ..., L, M, N] . Si k es escalar o k[0] == k[1] :

output[i, j, ..., l, m, n]
  = diagonal[i, j, ..., l, n-max(k[1], 0)] ; if n - m == k[1]
    input[i, j, ..., l, m, n]              ; otherwise

De lo contrario,

output[i, j, ..., l, m, n]
  = diagonal[i, j, ..., l, diag_index, index_in_diag] ; if k[0] <= d <= k[1]
    input[i, j, ..., l, m, n]                         ; otherwise

donde d = n - m , diag_index = k[1] - d e index_in_diag = n - max(d, 0) .

Por ejemplo:

# The main diagonal.
input = np.array([[[7, 7, 7, 7],              # Input shape: (2, 3, 4)
                   [7, 7, 7, 7],
                   [7, 7, 7, 7]],
                  [[7, 7, 7, 7],
                   [7, 7, 7, 7],
                   [7, 7, 7, 7]]])
diagonal = np.array([[1, 2, 3],               # Diagonal shape: (2, 3)
                     [4, 5, 6]])
tf.matrix_set_diag(diagonal) ==> [[[1, 7, 7, 7],  # Output shape: (2, 3, 4)
                                   [7, 2, 7, 7],
                                   [7, 7, 3, 7]],
                                  [[4, 7, 7, 7],
                                   [7, 5, 7, 7],
                                   [7, 7, 6, 7]]]

# A superdiagonal (per batch).
tf.matrix_set_diag(diagonal, k = 1)
  ==> [[[7, 1, 7, 7],  # Output shape: (2, 3, 4)
        [7, 7, 2, 7],
        [7, 7, 7, 3]],
       [[7, 4, 7, 7],
        [7, 7, 5, 7],
        [7, 7, 7, 6]]]

# A band of diagonals.
diagonals = np.array([[[1, 2, 3],  # Diagonal shape: (2, 2, 3)
                       [4, 5, 0]],
                      [[6, 1, 2],
                       [3, 4, 0]]])
tf.matrix_set_diag(diagonals, k = (-1, 0))
  ==> [[[1, 7, 7, 7],  # Output shape: (2, 3, 4)
        [4, 2, 7, 7],
        [0, 5, 3, 7]],
       [[6, 7, 7, 7],
        [3, 1, 7, 7],
        [7, 4, 2, 7]]]

  

  
Arguments:

      
scope: A Scope object
      
input: Rank r+1, where r >= 1.
      
diagonal: Rank r when k is an integer or k[0] == k[1]. Otherwise, it has rank r+1. k >= 1.
      
k: Diagonal offset(s). Positive value means superdiagonal, 0 refers to the main diagonal, and negative value means subdiagonals. k can be a single integer (for a single diagonal) or a pair of integers specifying the low and high ends of a matrix band. k[0] must not be larger than k[1].
    

  
Returns:

      
Output: Rank r+1, with output.shape = input.shape. 
    

  

    

      

        
Constructors and Destructors
      
    
    

      

        MatrixSetDiagV2(const ::tensorflow::Scope & scope, ::tensorflow::Input input, ::tensorflow::Input diagonal, ::tensorflow::Input k)
        

      
    
  
  

    

      

        
Public attributes
      
    
    

      

        operation
      
      

        

          Operation
        
      
    
    

      

        output
      
      

        

          ::tensorflow::Output
        
      
    
  
  

    

      

        
Public functions
      
    
    

      

        node() const 
      
      

        

          ::tensorflow::Node *
        
      
    
    

      

        operator::tensorflow::Input() const 
      
      

        

          
        

      
    
    

      

        operator::tensorflow::Output() const 
      
      

        

          
        

      
    
  
  
Public attributes
  

    
operation
    
Operation operation
 
 producción
 
::tensorflow::Output output
 Funciones publicas 
 MatrixSetDiagV2
 
 MatrixSetDiagV2(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input input,
  ::tensorflow::Input diagonal,
  ::tensorflow::Input k
)
 
 nodo
 
::tensorflow::Node * node() const 
 
 operador :: tensorflow :: Entrada
 
 operator::tensorflow::Input() const 
 
 operador :: tensorflow :: Salida
 
 operator::tensorflow::Output() const