ML Quiz

K-Nearest Neighbors (KNN) is classified as what type of machine learning algorithm?

• Reinforcement learning algorithm
• Unsupervised learning algorithm
• Instance-based learning

• Semi-supervised learning algorithm

Which of the following is not a supervised machine learning algorithm?

• K-means
  

• Naïve Bayes

• SVM for classification problems

• Decision tree

Which type of machine learning algorithm falls under the category of “unsupervised learning”?

• Linear Regression

• K-means Clustering

• Decision Trees

• Random Forest

Which of the following algorithms is primarily used for dimensionality reduction?

• Logistic Regression

• PCA (Principal Component Analysis)

• Support Vector Machines

• Random Forest

What type of learning is characterized by the use of labeled data to train models?

• Unsupervised Learning

• Supervised Learning

• Reinforcement Learning

• Self-supervised Learning

Which algorithm is commonly used for classification tasks in machine learning?

• K-means Clustering

• Linear Regression

• Decision Trees

• Principal Component Analysis

Which algorithm is often used for regression tasks in machine learning?

• K-means Clustering

• Linear Regression

• Logistic Regression

• Support Vector Machines

What is the primary goal of clustering algorithms in machine learning?

• To predict outcomes based on input data

• To group similar data points together

• To reduce the dimensionality of data

• To classify data into predefined categories

Which of the following is a common technique for model evaluation in supervised learning?

• Cross-validation

• Data augmentation

• Feature scaling

• Hyperparameter tuning

Which of the following statements is false about Ensemble learning?

• It is a supervised learning algorithm

• It is an unsupervised learning algorithm

• More random algorithms can be used to produce a stronger ensemble

• Ensembles can be shown to have more flexibility in the functions they can represent