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Microsoft Azure Machine Learning

By : Sumit Mund

4 (5)

Microsoft Azure Machine Learning

4 (5)

By: Sumit Mund

Overview of this book

The book is intended for those who want to learn how to use Azure Machine Learning. Perhaps you already know a bit about Machine Learning, but have never used ML Studio in Azure; or perhaps you are an absolute newbie. In either case, this book will get you up-and-running quickly.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Introduction

1. Introduction

Introduction to predictive analytics

Machine learning

Introduction to Azure Machine Learning

Summary

2. ML Studio Inside Out

2. ML Studio Inside Out

Introduction to ML Studio

Getting started with Microsoft Azure

Inside ML Studio

Workspace as a collaborative environment

Summary

3. Data Exploration and Visualization

3. Data Exploration and Visualization

The basic concepts

Data exploration in ML Studio

Do it yourself

Summary

4. Getting Data in and out of ML Studio

4. Getting Data in and out of ML Studio

Getting data in ML Studio

Data format conversion

Getting data from ML Studio

Summary

5. Data Preparation

5. Data Preparation

Data manipulation

Splitting data

Do it yourself

The Apply SQL Transformation module

Advanced data preprocessing

Summary

6. Regression Models

6. Regression Models

Understanding regression algorithms

Train, score, and evaluate

Linear regression

Optimizing parameters for a learner – the sweep parameters module

The train neural network regression – do it yourself

Comparing models with the evaluate model

Other regression algorithms

No free lunch

Summary

7. Classification Models

7. Classification Models

Understanding classification

Training, scoring, and evaluating modules

Classifying diabetes or not

Predicting adult income with decision-tree-based models

Do it yourself – comparing models to choose the best

Multiclass classification

Multiclass classification with the Iris dataset

Multiclass classification with the Wine dataset

Summary

8. Clustering

8. Clustering

Understanding the K-means clustering algorithm

Creating a K-means clustering model using ML Studio

Do it yourself

Clustering versus classification

Summary

9. A Recommender System

9. A Recommender System

The Matchbox recommender

Building a recommendation system

Summary

10. Extensibility with R and Python

10. Extensibility with R and Python

Introduction to R

Introduction to Python

Why should you extend through R/Python code?

Extending experiments using the Python language

Extending experiments using the R language

Summary

11. Publishing a Model as a Web Service

11. Publishing a Model as a Web Service

Preparing an experiment to be published

Creating a scoring experiment

Specifying the input and output of the web service

Publishing a model as a web service

Consuming a published web service

Web service configuration

Updating the web service

Summary

12. Case Study Exercise I

12. Case Study Exercise I

Problem definition and scope

The dataset

Data exploration and preparation

Model development

Model deployment

Summary

13. Case Study Exercise II

13. Case Study Exercise II

Problem definition and scope

The dataset

Data exploration and preparation

Model development

Model deployment

Summary

Index

Index

Chapter 4. Getting Data in and out of ML Studio

For any data analysis, you need data as input. Data analysis generates results as a dataset, which needs to be stored for future use. ML Studio allows you to import and export data in a variety of different formats. You can use the Reader module to import a dataset in ML Studio from external sources and you can use the Writer module to export a dataset. You can also download and upload datasets to and from your PC respectively for different data formats.

ML Studio supports a number of data formats. The internal data format, data table (DotNetTable), is primarily used to move data between modules inside an experiment. When you import data from external sources to ML Studio, the formats supported as of now are ARFF, CSV, Hive Table, SVMLight, Text, and TSV. Let's take a look at the following term list:

ARFF: This is the machine learning data format defined by Weka. An Attribute-Relation File Format (ARFF) file is an ASCII text file...

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