Skip to content
Related Articles

Related Articles

Improve Article

Tensorflow.js tf.metrics.categoricalAccuracy() Function

  • Last Updated : 18 May, 2021
Geek Week

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

The tf.metrics.categoricalAccuracy() function is used to return categorical accuracy between two tensor. It takes two tensor as a parameter.

Syntax:

tf.metrics.categoricalAccuracy(a, b);

Parameters: 

  • a: The first specified tensor.
  • b: The second specified tensor. It must have same data type as “a”.

Return Value: It returns the categorical accuracy of the two specified tensors “a” and “b”.



Example 1:

Javascript




// Importing the tensorflow library
import * as tf from "@tensorflow/tfjs"
  
// Initializing two tensors
const a = tf.tensor2d([[1, 0, 0, 1], [0, 1, 0, 1]]);
const b = tf.tensor2d([
    [0.1, 0.6, 0.01, 0.05], 
    [0.1, 0.02, 0.05, 0.3]
]);
  
// Calling the .categoricalAccuracy() function
const accuracy = tf.metrics.categoricalAccuracy(a, b);
  
// Print tensor 
accuracy.print();

Output:

Tensor
    [0, 0]

Example 2:

Javascript




// Importing the tensorflow library
import * as tf from "@tensorflow/tfjs"
  
// Initializing two tensors
const a = tf.tensor([1, 0, 0, 1]);
const b = tf.tensor([1, 0.6, 0.01, 0.05]);
  
// Calling the .categoricalAccuracy() function
const accuracy = tf.metrics.categoricalAccuracy(a, b);
  
// Print tensor 
accuracy.print();

Output:

Tensor
    1

Example 3:

Javascript




// Importing the tensorflow library
import * as tf from "@tensorflow/tfjs"
  
// Initializing two tensors
const a = tf.tensor([0, 0, 0, 1]);
const b = tf.tensor([0.1, 0.8, 0.05, 0.05]);
  
// Calling the .categoricalAccuracy() function
const accuracy = tf.metrics.categoricalAccuracy(a, b);
  
// Print tensor 
accuracy.print();

Output:

Tensor
    0

Reference: https://js.tensorflow.org/api/latest/#metrics.categoricalAccuracy

Hey geek! The constant emerging technologies in the world of web development always keeps the excitement for this subject through the roof. But before you tackle the big projects, we suggest you start by learning the basics. Kickstart your web development journey by learning JS concepts with our JavaScript Course. Now at it’s lowest price ever!




My Personal Notes arrow_drop_up
Recommended Articles
Page :