D
Deleted member 180663
Guest
What dose this do?
Its pretty simple.
Its pretty simple.
Python:
import numpy as np
from scipy.spatial.distance import cosine
from sklearn.metrics.pairwise import pairwise_distances
# Example user-item matrix (10 users, 5 items)
user_item_matrix = np.array([
[5, 3, 0, 1, 0],
[4, 0, 3, 2, 5],
[0, 5, 4, 3, 2],
[5, 5, 5, 5, 5],
[1, 0, 0, 1, 1],
[0, 0, 5, 0, 0],
[4, 0, 0, 3, 2],
[0, 0, 4, 0, 0],
[0, 5, 0, 0, 0],
[0, 0, 0, 0, 5]
])
# Normalize user-item matrix
user_item_matrix_norm = user_item_matrix / np.linalg.norm(user_item_matrix, axis=1)[:, None]
# Calculate pairwise cosine distances
distances = pairwise_distances(user_item_matrix_norm, metric="cosine")
# Predict ratings for user 0 for all items
predicted_ratings = 1 - distances[0]
print("Predicted ratings for user 0:")
print(predicted_ratings)
HTML:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="styles.css">
<title>Challenging Layout Example</title>
</head>
<body>
<div class="container">
<header class="header">Header</header>
<main class="main-content">
<section class="main-column main-column-1">
<h2>Column 1</h2>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. In euismod ipsum et dui rhoncus, eu scelerisque tellus eleifend.</p>
</section>
<section class="main-column main-column-2">
<h2>Column 2</h2>
<p>Curabitur ullamcorper ultricies nisi. Nullam volutpat sapien eget nisl tincidunt commodo. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas.</p>
</section>
<section class="main-column main-column-3">
<h2>Column 3</h2>
<p>Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Donec pharetra, mi eget aliquet rhoncus, turpis velit elementum nisi, ac egestas nisi massa ut dolor.</p>
</section>
</main>
<footer class="footer">Footer</footer>
</div>
</body>
</html>
CSS:
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
font-family: Arial, sans-serif;
line-height: 1.6;
}
.container {
display: grid;
grid-template-columns: repeat(1
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