Data Classification,Categorization and Data Clustering

Self-check

Questions 1–10 of 10

1. Which learning method does Data Clustering belong to?
Question 1A. Supervised LearningB. Reinforcement LearningC. Transfer LearningD. Unsupervised LearningE. Semi-supervised Learning
2. Which learning method does Data Classification belong to?
Question 2A. Supervised LearningB. Unsupervised LearningC. Reinforcement LearningD. Deep Learning onlyE. Federated Learning
3. What kind of data does Data Classification use?
Question 3A. Unlabelled dataB. Encrypted dataC. Labelled dataD. Only numeric dataE. Only image data
4. Which two algorithms are named as the common Data Clustering algorithms in data mining?
Question 4A. K-Nearest Neighbour and decision treeB. K-means clustering and hierarchical clusteringC. Linear regression and logistic regressionD. Naive Bayes and random forestE. Gradient boosting and support vector machines
5. Which of the following is named as one of the most popular Data Classification algorithms in data mining?
Question 5A. K-means clusteringB. Hierarchical clusteringC. Principal component analysisD. AprioriE. K-Nearest Neighbour
6. Grouping animals into those with two legs and those with four legs is an example of which technique?
Question 6A. Data ClassificationB. Data LabellingC. Data ClusteringD. Data SegmentationE. Data Annotation
7. Which statement about the output of Data Clustering is correct?
Question 7A. The output is unknown in advanceB. The output is known in advanceC. The output is always a single groupD. The output must match the training labelsE. The output is a decision tree
8. Which of the following is NOT true of Data Classification?
Question 8A. It uses labelled dataB. Its output is knownC. Training data is providedD. It is a form of Supervised LearningE. No training data is provided
9. At what stage are Data Classification and Data Clustering used in Machine Learning?
Question 9A. After the final model has been deployedB. For pattern identification before complex algorithms come into actionC. Only during data backupD. When writing the user interfaceE. During database schema design
10. On what basis is Data Classification performed?
Question 10A. The shared characteristics of itemsB. The size of the datasetC. The order in which data arrivedD. The uniqueness of the data, so that each item such as each animal is tagged separatelyE. The storage cost of each record