Why PyTorch is preferred for research and production - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a tensor in PyTorch.

PyTorch

import torch
x = torch.[1]([1, 2, 3])

Drag options to blanks, or click blank then click option'

Amatrix

Barray

Clist

Dtensor

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'array' instead of 'tensor' causes an error.

In PyTorch, torch.tensor creates a tensor from a list or array.

2fill in blank

medium

Complete the code to move a tensor to GPU if available.

PyTorch

device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
x = x.[1](device)

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Amove

Bto

Ccuda

Dtransfer

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'cuda' directly on tensor causes error if GPU not available.

The to method moves tensors to the specified device, like GPU or CPU.

3fill in blank

hard

Fix the error in the code to perform a forward pass in a PyTorch model.

PyTorch

output = model.[1](input_tensor)

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Aforward

Brun

Cpredict

Dcall

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'predict' causes attribute error.

In PyTorch, the forward method defines the model's computation. Calling model(input) runs forward internally, but explicitly calling forward is correct here.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps words to their lengths if length is greater than 3.

PyTorch

{word: [1] for word in words if len(word) [2] 3}

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Alen(word)

B<

C>

Dword

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '>' changes the filter logic.

The dictionary comprehension maps each word to its length using len(word). The condition filters words with length greater than 3 using >.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that maps uppercase words to their values if the value is positive.

PyTorch

result = [1]: [2] for k, v in data.items() if v [3] 0}

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Ak.upper()

Bv

C>

Dk

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'k' instead of 'k.upper()' misses uppercase conversion.

The comprehension maps uppercase keys k.upper() to their values v only if the value is greater than zero >.