完成作业3-1-3

练习3.py

@@ -0,0 +1,23 @@
+import numpy as np
+
+feature_map1 = np.array([[1, 0, 1], [0, 1, 0], [1, 0, 1]])
+feature_map2 = np.array([[1, 1, 1], [1, 0, 0], [1, 0, 0]])
+
+vector1 = feature_map1.flatten() 
+vector2 = feature_map2.flatten()  
+
+print("vector1:", vector1)
+print("vector2:", vector2)
+print()
+
+euclidean_distance = np.linalg.norm(vector1 - vector2)
+print(f"欧几里得距离: {euclidean_distance:.4f}")
+
+dot_product = np.dot(vector1, vector2)
+norm1 = np.linalg.norm(vector1)
+norm2 = np.linalg.norm(vector2)
+cosine_similarity = dot_product / (norm1 * norm2)
+print(f"余弦相似度: {cosine_similarity:.4f}")
+
+cosine_distance = 1 - cosine_similarity
+print(f"余弦距离: {cosine_distance:.4f}")