pyspark 原理、源码解析与优劣势分析(3) ---- 优劣势总结


系列文章:


基本AI 算法与pyspark 解决方案对应

pyspark 算子与基本AI 算法核对,基本覆盖99% 机器学习的建模流程,对应大多数应用场景
pyspark cover 99% 的内容,其余的功能可以在微软开源的 mml spark 中找到【安装难度大】,结合TensorFlow on spark 【效率低】深度学习也包含了。

没有cover 的是以下两个常用内容:

  1. 线性模型特征重要性
  2. 洛伦兹曲线

对于如异常检测中使用到的孤立森林等算法,考虑可使用sklearn与spark 结合。编写udf 在每一个Executor 上 进行单独的计算后进行汇总。

About This Book, Learn why and how you can efficiently use Python to process data and build machine learning models in Apache Spark 2.0Develop and deploy efficient, scalable real-time Spark solutionsTake your understanding of using Spark with Python to the next level with this jump start guide, Who This Book Is For, If you are a Python developer who wants to learn about the Apache Spark 2.0 ecosystem, this book is for you. A firm understanding of Python is expected to get the best out of the book. Familiarity with Spark would be useful, but is not mandatory., What You Will Learn, Learn about Apache Spark and the Spark 2.0 architectureBuild and interact with Spark DataFrames using Spark SQLLearn how to solve graph and deep learning problems using GraphFrames and TensorFrames respectivelyRead, transform, and understand data and use it to train machine learning modelsBuild machine learning models with MLlib and MLLearn how to submit your applications programmatically using spark-submitDeploy locally built applications to a cluster, In Detail, Apache Spark is an open source framework for efficient cluster computing with a strong interface for data parallelism and fault tolerance. This book will show you how to leverage the power of Python and put it to use in the Spark ecosystem. You will start by getting a firm understanding of the Spark 2.0 architecture and how to set up a Python environment for Spark., You will get familiar with the modules available in PySpark. You will learn how to abstract data with RDDs and DataFrames and understand the streaming capabilities of PySpark. Also, you will get a thorough overview of machine learning capabilities of PySpark using ML and MLlib, graph processing using GraphFrames, and polyglot persistence using Blaze. Finally, you will learn how to deploy your applications to the cloud using the spark-submit command., By the end of this book, you will have established a firm understanding of the Spark Python API and how it can be used t
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