Table of Contents
- 1 Which algorithm is best for multiclass text classification?
- 2 Which algorithm is best for multi-label classification?
- 3 How will you differentiate between a multi-class and multi-label classification problem?
- 4 What is the difference between multi-class classification and multi-label classification?
- 5 What is multi-label multi-class classification?
Which algorithm is best for multiclass text classification?
Linear Support Vector Machine is widely regarded as one of the best text classification algorithms. We achieve a higher accuracy score of 79\% which is 5\% improvement over Naive Bayes.
Which algorithm is best for multi-label classification?
Binary relevance technique MultinomialNB() is the Naive Bayes algorithm method used for classification. This is important because by converting our multi-label problem to a multi-class problem, we need an algorithm to handle this multi-class problem.
Which of the following method is used for multiclass classification?
One-Vs-Rest for Multi-Class Classification. One-vs-rest (OvR for short, also referred to as One-vs-All or OvA) is a heuristic method for using binary classification algorithms for multi-class classification. It involves splitting the multi-class dataset into multiple binary classification problems.
How do you train multiclass classification?
Approach –
- Load dataset from the source.
- Split the dataset into “training” and “test” data.
- Train Decision tree, SVM, and KNN classifiers on the training data.
- Use the above classifiers to predict labels for the test data.
- Measure accuracy and visualize classification.
How will you differentiate between a multi-class and multi-label classification problem?
Difference between multi-class classification & multi-label classification is that in multi-class problems the classes are mutually exclusive, whereas for multi-label problems each label represents a different classification task, but the tasks are somehow related.
What is the difference between multi-class classification and multi-label classification?
Multiclass classification means a classification problem where the task is to classify between more than two classes. Multilabel classification means a classification problem where we get multiple labels as output.
What is multi-class classification explain the performance of multi-class classification?
Multiclass Classification: A classification task with more than two classes; e.g., classify a set of images of fruits which may be oranges, apples, or pears. Most classification data sets do not have exactly equal number of instances in each class, but a small difference often does not matter.
Which of the following method is used for multiclass classification Mcq?
Q. | Which of the following method is used for multiclass classification? |
---|---|
B. | loocv |
C. | all vs one |
D. | one vs another |
Answer» a. one vs rest |
What is multi-label multi-class classification?
Multilabel classification is a classification problem in machine learning where the task is to classify the labels of each instance where the labels can be from 0 to n number of classes. For example, think of a facial recognition system what to do if it recognizes multiple people in an image.