Machine learning quiz questions TRUE or FALSE with answers, important machine learning interview questions for data science, Top 3 machine learning question set
Machine Learning TRUE / FALSE Questions - SET 06
1. The back-propagation algorithm, when run until a minimum is achieved, always finds the same solution (i.e., weights) no matter what the initial set of weights are.
(a)
TRUE (b)
FALSE
View Answer
Answer: FALSE
It will iterate
until a local minimum in the squared error is reached.
Back-propagation algorithm
The algorithm is used to train a neural network
through a method called chain rule. In simple terms, after each forward pass
through a network, back-propagation performs a backward pass while adjusting
the model’s parameters (weights and biases).
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2. Since classification is a special case of regression, logistic regression is a special case of linear regression.
(a)
TRUE (b)
FALSE
View Answer
Answer: TRUE
Logistic
regression is a special case of linear regression when the outcome variable
is categorical, and the log of odds is the dependent variable. It predicts
the probability of occurrence of an event by fitting data to a logit
function. Thus, the logit function acts as a link between logistic regression
and linear regression.
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3. K-Means will always give the same results regardless of the initialization of the centroids.
(a)
TRUE (b)
FALSE
View Answer
Answer: FALSE
K-means is sensitive to different initializations, which is why you should run it multiple times from different random initializations.
One way to
determine the number of clusters is the elbow method.
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