Machine Learning and Data Mining Quiz

What is the primary goal of data mining?

• To create large datasets

• To extract meaningful insights from data

• To visualize data

• To store data in databases

Which of the following is NOT a major application of data mining?

• Market analysis

• Healthcare predictions

• Fraud detection

• Image editing

What does classification in data mining involve?

• Predicting a discrete label for input

• Finding associations between items

• Grouping similar data points

• Reducing dimensionality of data

Which algorithm is commonly used for clustering?

• Linear Regression

• Support Vector Machines

• Decision Trees

• k-Means

What is the definition of regression in data mining?

• Finding associations between items

• Grouping data into clusters

• Identifying outliers in data

• Predicting a continuous output based on input data

Which of the following is an example of anomaly detection?

• Customer segmentation

• Email spam detection

• Fraud detection in banking

• Predicting house prices

What is the purpose of dimensionality reduction?

• To increase the number of features

• To simplify models and improve efficiency

• To classify data into categories

• To find associations between items

Which technique is used in Natural Language Processing?

• k-Means

• Word2Vec

• Isolation Forest

• Linear Regression

What is the main focus of reinforcement learning?

• Finding patterns in static datasets

• Learning optimal actions through interactions

• Analyzing historical data

• Classifying data into predefined categories

Which of the following is an example of a recommendation system?

• Movie recommendations on Netflix

• Customer segmentation

• Stock market forecasting

• Fraud detection