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Tensorflow.js tf.selu() Function

  • Last Updated : 18 May, 2021
Geek Week

Tensorflow.js is an open-source library that is developed by Google for running machine learning models as well as deep learning neural networks in the browser or node environment.

The .selu() function is used to find the scaled exponential linear and is done element wise.

Syntax:  

tf.selu(x)

Where, x < 0 ? scale * alpha * (exp(x) – 1) : x

Parameters:  



  • x: It is the stated tensor input, and it can be of type tf.Tensor, TypedArray, or Array.

Return Value: It returns the tf.Tensor object.

Example 1:  

Javascript




// Importing the tensorflow.js library
import * as tf from "@tensorflow/tfjs"
  
// Defining tensor input elements
const y = tf.tensor1d([-1, 76, 0, NaN, -4]);
  
// Calling selu() method and
// Printing output
y.selu().print();

Output:

Tensor
    [-1.1113307, 79.8532791, 0, NaN, -1.7258986]

Example 2:

Javascript




// Importing the tensorflow.js library 
import * as tf from "@tensorflow/tfjs"
  
// Defining tensor input
var val = [8.5, .14, .22, 'a'];
  
// Calling tensor1d method
const y = tf.tensor1d(val);
  
// Calling selu() method
var res = tf.selu(y)
  
// Printing output
res.print();

Output:

Tensor
    [8.9309587, 0.1470981, 0.2311542, NaN]

Reference: https://js.tensorflow.org/api/latest/#selu

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