Question

Which of the following is not a preprocessing method used for unstructured data classification?
1-stemming
2-lemmatization
3-confused matrix
4-stop word removal

Answer 1

3:-Confused Matrix
I think it's the answer.

Answer 2

A confusion matrix is not a preprocessing method used for unstructured data classification

Explanation:

Stemming and Lemmatization are Word Normalization methods in the field of "Natural Language Processing" which are used to prepare words, text, and documents for further processing.

A "confusion matrix" is a table matrix that is used to define the classification model performance on the basis of sample data where the true values are well-known. It gives performance measurement for the "machine learning" classification problem.