chore: try to opt runing time

2024-10-09 00:15:08 +08:00
parent e191004671
commit 6714a2de62
1 changed files with 2 additions and 2 deletions
@@ -60,10 +60,10 @@ def classify0(inX, dataSet, labels, k=8):
    distances = np.sqrt(np.sum(diff @ VI * diff, axis=1))

    # 对距离排序，获取前 k 个最近的样本索引
-    sortedDistIndices = np.argsort(distances)
+    sortedDistIndices = np.argsort(distances)[:k]

    # 统计前 k 个样本的标签
-    classCount = np.bincount(labels[sortedDistIndices[:k]])
+    classCount = np.bincount(labels[sortedDistIndices], minlength=np.max(labels) + 1)

    # 返回出现次数最多的标签
    return np.argmax(classCount)