The glmnetUtils package provides a collection of tools to streamline the process of fitting elastic net models with glmnet. I wrote the package after a couple of projects where I found myself writing the same boilerplate code to convert a data frame…

WLAN QoS配置 1.1  WLAN QoS简介 802.11网络提供了基于竞争的无线接入服务,但是不同的应用需求对于网络的要求是不同的,而原始的网络不能为不同的应用提供不同质量的接入服务,所以已经不能满足实际应用的需要. IEEE 802.11e为基于802.11协议的WLAN体系添加了QoS特性,这个协议的标准化时间很长,在这个过程中,Wi-Fi组织为了保证不同WLAN厂商提供QoS的设备之间可以互通,定义了WMM(Wi-Fi Multimedia,Wi-Fi多媒体)标准.WMM标准使W…

How to decide which regularization (L1 or L2) to use? Is there collinearity among some features? L2 regularization can improve prediction quality in this case, as implied by its alternative name, "ridge regression." However, it is true in genera…

Machine and Deep Learning with Python Education Tutorials and courses Supervised learning superstitions cheat sheet Introduction to Deep Learning with Python How to implement a neural network How to build and run your first deep learning network Neur…

0. 前言 1.任务描述 2.数据概览 3. 数据准备 4. 模型训练 5. kaggle实战 0. 前言 "尽管新技术新算法层出不穷,但是掌握好基础算法就能解决手头 90% 的机器学习问题." 本系列参考书籍 "Hands-on machine learning with scikit-learn and tensorflow"以及kaggle相关资料 1.任务描述 预测任务:根据某时刻房价相关数据,预测区域内该时刻任一街区的平均房价,决定是否对投资该街区的房子.…

参考: Hail Hail - Tutorial  windows也可以安装:Spark在Windows下的环境搭建 spark-2.2.0-bin-hadoop2.7 - Hail依赖的平台,并行处理 google cloud platform - 云平台 Broad's data cluster set-up tool 对Google cloud SDK的一个简单的wrap,方便操作. cloudtools is a small collection of command line tool…

Overfitting & Regularization The Problem of overfitting A common issue in machine learning or mathematical modeling is overfitting, which occurs when you build a model that not only captures the signal but also the noise in a dataset. Because we want…

整合几部分代码的汇总 隐藏代码片段 导入python数据和可视化包 导入统计相关的工具 导入回归相关的算法 导入数据预处理相关的方法 导入模型调参相关的包 读取数据 特征工程 缺失值 类别特征处理-label转化 box-cox转换 one-hot categoy 特征 数据相关性 模型部门 基模型 模型初步评估 stacking models 增加metal模型 ensemble StackedRegressor model with XGBoost and LightGBM 整合几部分代码的…

引用:Java Programming Language Enhancements Java Programming Language Enhancements Enhancements in Java SE 7 Binary Literals - In Java SE 7, the integral types (byte, short, int, and long) can also be expressed using the binary number system. To specif…

EasyMesh - A Two-Dimensional Quality Mesh Generator eryar@163.com Abstract. EasyMesh is developed by Bojan Niceno, it is a two-dimensional quality mesh generator. EasyMesh can generate two dimensional, unstructured, Delaunay and constrained Delaunay…