1. 聚类和分类的区别是什么？举例
参考链接
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:885e841e-49a9-4ba9-b75c-84338bf787e8
[En]
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:10737624-157f-46e3-981e-603700065418
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:b328f15c-7d30-42d4-b5a2-4e0292cf58fc
[En]
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:4cf5cfbe-5190-47b9-8cbf-2277a1856539
2.评估回归模型的指标？为什么？举例
参考链接
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:af169d35-9fa4-4aff-8dc3-097b5ed2dc48
[En]
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:ad842e3d-17c7-4dda-83bc-316bc2d3bd9c
- MAE系列，即由Mean Absolute Error衍生得到的指标；Mean Absolute Error (平均绝对误差)
- MSE系列，即由Mean Squared Error衍生得到的指标；MSE全称Mean Squared Error(均方误差)
- R²系列；
; 3. 分析数据的目的是什么？
- 及时发现异常
- 找到数据之间的因果关系
设定标准+发现异常
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:b61258a6-43a8-40a3-a76d-b1c133b7eedd
[En]
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:60895f57-5f1f-46a8-a5f6-4765a1b5bdea
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:669c59c9-9630-4c3a-9dc2-3bfbd7088d53
[En]
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:769f5b11-3c1d-4449-b0b4-d7043aeda440
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:032a94e3-849c-4384-babe-07dd1b5c9a6f
[En]
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:fff8f0af-6ca2-41ab-8ebc-d6046eca48f8
4.1 决策树
4.2 随机森林
主要由两种随机：
- 样本随机，不使用全部数据集，而是随机有放回的取样
- 特征随机，不使用全部特征，而是随机选取一部分特征
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:cbb47cfc-65b5-4003-a0bf-576b41156acb
[En]
[TencentCloudSDKException] code:FailedOperation.ServiceIsolate message:service is stopped due to arrears, please recharge your account in Tencent Cloud requestId:da8fdb09-f142-4c14-b60f-387e9f2b0354
Original: https://blog.csdn.net/prague6695/article/details/122980504
Author: 在学习的王哈哈
Title: 数据分析问题汇总
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