knn算法类型的相关内容

文章 2022-05-17 来自：开发者社区

【人工智能】机器学习之Python使用KNN算法进行电影类型预测以及使用KNN算法对鸢尾花进行分类

1. 使用KNN进行电影类型预测：给定训练样本集合如下：求解：testData={"老友记": [29, 10, 2, "？片"]}。解题步骤： 1.计算一个新样本与数据集中所有数据的距离 2.按照距离大小进行递增排序 3.选取距离最小的k个样本 4.确定前k个样本所在类别出现的频率，并输出出现频率最高的类别import numpy as np def createDataset()...

文章 2018-01-09 来自：开发者社区

K近邻(knn)算法预测电影类型

K近邻思想: 根据你的"邻居们"来确定你的类别你一觉醒来,不知道自己身在何方里,你能通过计算机定位到周围5个"最近的"邻居,其中有4个身处火星,1个身处月球,你认为应该自己距火星更近,自己应该在火星...(K近邻算法又称为Knn算法,属于分类算法) 案例1 from sklearn.model_selection import train_test_split from sklearn....

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【人工智能】机器学习之Python使用KNN算法进行电影类型预测以及使用KNN算法对鸢尾花进行分类

K近邻(knn)算法预测电影类型

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