Machine Learning Quiz

In kNN, for measuring distance with continuous features we use _____

• Hamming distance
• Manhattan distance
• Minkowski distance
• Euclidean distance

What is the output of a classification algorithm?

• A categorical value

• A countinuous value

• Groups of similar instances

Esep. The logistic function k

• Logistic regression
• Exponential function
• the number of independent variables/features

• Sigmoid function

How the performance of k-nearest neighbors (k-NN) is affected by small values of k

• The performance of k-NN improves with small values of k due to reduced complexity
• Small values of k in k-NN lead to better generalization and less overfitting
• k-NN is not affected by the value of k
• The performance of k-NN deteriorates with small values of k due to increased sensitivity to noise and overfitting.

In a confusion matrix for cancer detection if We predicted yes, but they don't have the disease

• True Negative
• False Positive
• False Negative
• True Positive

Data used to optimize the parameter settings of a supervised learner model.

• Validation data
• Testing data
• Unlabeled data
• Training data

Mathematical techniques that guide how the parameter space should be explored during Bayesian optimization.

• Random search
• Acquisition functions
• Gradient descent
• Hill climbing

In a simple regression model, if you increase the input value by 1 then you expect the output to change by :

• The intercept of the regression line
• The mean of the output variable
• The standard error of the regression
• The value of the slope parameter

The problem of classification is :

• Sorting data based on certain features
• Aggregating data into a single group
• a set of objects divided into classes

• Analyzing data for trends and patterns

What is the number of deaths in India due to SARS-Cov-2 at 5 weeks from day 0? Define the response variable.

• Ask a fortune teller for the number of deaths
• The number of deaths due to SARS-Cov-2

• Count the number of trees in India to determine the deaths
• Check the weather forecast for the number of deaths