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Recent questions tagged ml-midterm

0 0 votes
1 answers 1 answer
2.5k
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How to calculate feed-forward (forward-propagation) in neural network for classification?
For the following neural network, calculate accuracy of classification, given these settings
0 0 votes
1 1 answer
7.6k
7.6k views
How to calculate the residual errors, (MSE),(MAE), and (RMSE)?
Given the following sample dataset with 5 samples and 2 features:SampleFeature 1Feature 2Actual ValuePredicted Value1234623456345674567856789Calculate the residual errors...
1 1 vote
1 answers 1 answer
4.9k
4.9k views
How to calculate residual errors for linear regression and interpret regression metrics?
Assuming we have a linear regression equation and some data points (sample), how can we calculate residual error for each data point, and total cost based on the metrics ...
3 3 votes
1 answers 1 answer
7.8k
7.8k views
How to calculate the probability and accuracy of a Logistic Regression classifier?
How to solve this problem?https://i.imgur.com/8urywpf.jpgQ1) Complete the ? sectionsQ2) Accuracy of system if threshold = 0.5?Q3) Accuracy of system if threshold = 0.95?
2 2 votes
1 answers 1 answer
14.3k
14.3k views
How to calculate Accuracy, Precision, Recall or F1?
In the following example, calculate Accuracy, Precision, Recall or F1?https://i.imgur.com/OezFpqC.png
4 4 votes
1 answers 1 answer
7.6k
7.6k views
How to perform a classification or regression using k-NN?
Suppose, you have given the following dataset where x and y are the 2 features and color Red or Blue is the target variable.a) A new data point $x=1$ and $y=1$ is given. ...
2 2 votes
1 answers 1 answer
20.9k
20.9k views
How to calculate k-means clustering with a numerical example?
Use the k-means algorithm and Euclidean distance to cluster the following 8 examples into 3 clusters:$A1=(2,10), A2=(2,5), A3=(8,4), A4=(5,8), A5=(7,5), A6=(6,4), A7=(1,2...
3 3 votes
2 answers 2 answers
8.4k
8.4k views
How to calculate Softmax Regression probabilities in this example?
The scatter plot of Iris Dataset is shown in the figure below. Assume Softmax Regression is used to classify Iris to Setosa, Versicolor, or Viriginica using just petal le...
3 3 votes
1 answers 1 answer
9.4k
9.4k views
How to calculate feed-forward (forward-propagation) in neural network?
In the figure below, a neural network is shown. Calculate the following:1) How many neurons do we have in the input layer and the output layer?2) How many hidden layers d...
3 3 votes
1 answers 1 answer
10.8k
10.8k views
How to calculate Softmax Regression probabilities?
The scatter plot of Iris Dataset is shown in the figure below. Assume Softmax Regression is used to classify Iris to Setosa, Versicolor, or Viriginica using just petal le...
3 3 votes
1 answers 1 answer
7.4k
7.4k views
How to calculate LogLoss in logistic regression?
The dataset of pass/fail in an exam for 5 students is given in the table below. If we use Logistic Regression as the classifier and assume the model suggested by the opti...
2 2 votes
1 answers 1 answer
13.3k
13.3k views
How to calculate probability in Logistic Regression?
The dataset of pass/fail in an exam for 5 students is given in the table below. If we use Logistic Regression as the classifier and assume the model suggested by the opti...
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