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lightgbm-doc-zh's Introduction

LightGBM 中文文档

LightGBM 是一个梯度 boosting 框架, 使用基于学习算法的决策树. 它是分布式的, 高效的, 装逼的, 它具有以下优势:

  • 速度和内存使用的优化
    • 减少分割增益的计算量
    • 通过直方图的相减来进行进一步的加速
    • 减少内存的使用 减少并行学习的通信代价
  • 稀疏优化
  • 准确率的优化
    • Leaf-wise (Best-first) 的决策树生长策略
    • 类别特征值的最优分割
  • 网络通信的优化
  • 并行学习的优化
    • 特征并行
    • 数据并行
    • 投票并行
  • GPU 支持可处理大规模数据

更多有关 LightGBM 特性的详情, 请参阅: LightGBM 特性.

文档地址

项目负责人

项目贡献者

下载

Docker

docker pull apachecn0/lightgbm-doc-zh
docker run -tid -p <port>:80 apachecn0/lightgbm-doc-zh
# 访问 http://localhost:{port} 查看文档

PYPI

pip install lightgbm-doc-zh
lightgbm-doc-zh <port>
# 访问 http://localhost:{port} 查看文档

NPM

npm install -g lightgbm-doc-zh
lightgbm-doc-zh <port>
# 访问 http://localhost:{port} 查看文档

贡献指南

为了使项目更加便于维护,我们将文档格式全部转换成了 Markdown,同时更换了页面生成器。后续维护工作将完全在 Markdown 上进行。

小部分格式仍然存在问题,主要是链接和表格。需要大家帮忙找到,并提 PullRequest 来修复。

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了解我们: http://www.apachecn.org/organization/209.html

加入组织: http://www.apachecn.org/organization/209.html

更多信息请参阅: http://www.apachecn.org/organization/348.html

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lightgbm-doc-zh's Issues

预测结果不一致

您好,我在使用lightgbm进行预测时,多次预测的结果不一致,请问可能是什么原因呢?
前提声明:

  1. 在训练过程中声明了seed=42,固定了随机种子
  2. 测试过程中使用的是同一个权重,同一个测试文件

请问各位大佬,是什么原因导致的呢?

新手入门

请问有什么中文的实战入门样例吗?实在新手

首页LightGBM的特点

LightGBM 是一个梯度 boosting 框架, 使用基于学习算法的决策树. 它是分布式的, 高效的, 装逼的, 它具有以下优势,装逼的是认真的么

lightgbm中的dart和goss算法

您好,我最近在用lightgbm来训练模型,我发现里面的算法有4种boosting,其中gbdt和rf我有查阅资料在网上,我了解其中的原理,可是 对于其中的Dart和Goss我不是很了解,我想问一下Dart和Goss与GBDT有哪些区别?谢谢

LightGBM 中文文档 - 要构建 LightGBM GPU 版本, 运行以下命令( 内容更新了)

中文地址:
http://lightgbm.apachecn.org/zh/latest/Installation-Guide.html#id8

git clone --recursive https://github.com/Microsoft/LightGBM ; cd LightGBM
mkdir build ; cd build
cmake -DUSE_GPU=1 ..
# if you have installed the NVIDIA OpenGL, please using following instead
# sudo cmake -DUSE_GPU=1 -DOpenCL_LIBRARY=/usr/local/cuda/lib64/libOpenCL.so -OpenCL_INCLUDE_DIR=/usr/local/cuda/include/ ..
make -j4

英文原文地址:
http://lightgbm.readthedocs.io/en/latest/Installation-Guide.html#id8

git clone --recursive https://github.com/Microsoft/LightGBM ; cd LightGBM
mkdir build ; cd build
cmake -DUSE_GPU=1 ..
# if you have installed NVIDIA CUDA to a customized location, you should specify paths to OpenCL headers and library like the following:
# cmake -DUSE_GPU=1 -DOpenCL_LIBRARY=/usr/local/cuda/lib64/libOpenCL.so -DOpenCL_INCLUDE_DIR=/usr/local/cuda/include/ ..
make -j4

什么叫做“装逼的”?

LightGBM 是一个梯度 boosting 框架, 使用基于学习算法的决策树. 它是分布式的, 高效的, 装逼的, 它具有以下优势:

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