Description
A rooted tree is a well-known data structure in computer science and engineering. An example is shown below:
In the figure, each node is labeled with an integer from {1, 2,...
CS231n
2 K-Nearest Neighbors note ---by Orangestar
1. codes:
import numpy as np
class NearestNeighbor:
def __init__(self):
pass
def train(self, X, y):
"""X is N × D where ...