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Spis treści

Agile Data Science 2.0. Building Full-Stack Data Analytics Applications with Spark eBook -- spis treści

• Preface
  • Agile Data Science Mailing List
  • Data Syndrome, Product Analytics Consultancy
    • Live Training
  • Who This Book Is For
  • How This Book Is Organized
  • Conventions Used in This Book
  • Using Code Examples
  • OReilly Safari
  • How to Contact Us
• I. Setup
• 1. Theory
  • Introduction
  • Definition
    • Methodology as Tweet
    • Agile Data Science Manifesto
      • Iterate, iterate, iterate
      • Ship intermediate output
      • Prototype experiments over implementing tasks
      • Integrate the tyrannical opinion of data
      • Climb up and down the data-value pyramid
      • Discover and pursue the critical path to a killer product
      • Get meta
      • Synthesis
  • The Problem with the Waterfall
    • Research Versus Application Development
  • The Problem with Agile Software
    • Eventual Quality: Financing Technical Debt
    • The Pull of the Waterfall
  • The Data Science Process
    • Setting Expectations
    • Data Science Team Roles
    • Recognizing the Opportunity and the Problem
    • Adapting to Change
      • Harnessing the power of generalists
      • Leveraging agile platforms
      • Sharing intermediate results
  • Notes on Process
    • Code Review and Pair Programming
    • Agile Environments: Engineering Productivity
      • Collaboration space
      • Private space
      • Personal space
    • Realizing Ideas with Large-Format Printing
• 2. Agile Tools
  • Scalability = Simplicity
  • Agile Data Science Data Processing
  • Local Environment Setup
    • System Requirements
    • Setting Up Vagrant
    • Downloading the Data
  • EC2 Environment Setup
    • Downloading the Data
  • Getting and Running the Code
    • Getting the Code
    • Running the Code
    • Jupyter Notebooks
  • Touring the Toolset
    • Agile Stack Requirements
    • Python 3
      • Anaconda and Miniconda
      • Jupyter notebooks
    • Serializing Events with JSON Lines and Parquet
      • JSON for Python
    • Collecting Data
    • Data Processing with Spark
      • Hadoop required
      • Processing data with Spark
    • Publishing Data with MongoDB
      • Booting Mongo
      • Pushing data to MongoDB from PySpark
    • Searching Data with Elasticsearch
      • Elasticsearch and PySpark
        • Making PySpark data searchable
        • Searching our data
      • Python and Elasticsearch with pyelasticsearch
    • Distributed Streams with Apache Kafka
      • Starting up Kafka
      • Topics, console producer, and console consumer
      • Realtime versus batch computing with Spark
      • Kafka in Python with kafka-python
    • Processing Streams with PySpark Streaming
    • Machine Learning with scikit-learn and Spark MLlib
      • Why scikit-learn as well as Spark MLlib?
    • Scheduling with Apache Airflow (Incubating)
      • Installing Airflow
      • Preparing a script for use with Airflow
        • Conditionally initializing PySpark
        • Parameterizing scripts on the command line
      • Creating an Airflow DAG in Python
      • Complete scripts for Airflow
      • Testing a task in Airflow
      • Running a DAG in Airflow
      • Backfilling data in Airflow
      • The power of Airflow
    • Reflecting on Our Workflow
    • Lightweight Web Applications
      • Python and Flask
        • Flask echo microservice
        • Python and Mongo with pymongo
        • Displaying executives in Flask
    • Presenting Our Data
      • Booting Bootstrap
      • Visualizing data with D3.js
  • Conclusion
• 3. Data
  • Air Travel Data
    • Flight On-Time Performance Data
    • OpenFlights Database
  • Weather Data
  • Data Processing in Agile Data Science
    • Structured Versus Semistructured Data
  • SQL Versus NoSQL
    • SQL
    • NoSQL and Dataflow Programming
    • Spark: SQL + NoSQL
    • Schemas in NoSQL
    • Data Serialization
    • Extracting and Exposing Features in Evolving Schemas
  • Conclusion
• II. Climbing the Pyramid
• 4. Collecting and Displaying Records
  • Putting It All Together
  • Collecting and Serializing Flight Data
  • Processing and Publishing Flight Records
    • Publishing Flight Records to MongoDB
  • Presenting Flight Records in a Browser
    • Serving Flights with Flask and pymongo
    • Rendering HTML5 with Jinja2
  • Agile Checkpoint
  • Listing Flights
    • Listing Flights with MongoDB
    • Paginating Data
      • Reinventing the wheel?
      • Serving paginated data
      • Prototyping back from HTML
  • Searching for Flights
    • Creating Our Index
    • Publishing Flights to Elasticsearch
    • Searching Flights on the Web
  • Conclusion
• 5. Visualizing Data with Charts and Tables
  • Chart Quality: Iteration Is Essential
  • Scaling a Database in the Publish/Decorate Model
    • First Order Form
    • Second Order Form
    • Third Order Form
    • Choosing a Form
  • Exploring Seasonality
    • Querying and Presenting Flight Volume
      • Iterating on our first chart
  • Extracting Metal (Airplanes [Entities])
    • Extracting Tail Numbers
      • Data processing: batch or realtime?
      • Grouping and sorting data in Spark
      • Publishing airplanes with Mongo
      • Serving airplanes with Flask
      • Ensuring database performance with indexes
      • Linking back in to our new entity
      • Information architecture
    • Assessing Our Airplanes
  • Data Enrichment
    • Reverse Engineering a Web Form
    • Gathering Tail Numbers
    • Automating Form Submission
    • Extracting Data from HTML
    • Evaluating Enriched Data
  • Conclusion
• 6. Exploring Data with Reports
  • Extracting Airlines (Entities)
    • Defining Airlines as Groups of Airplanes Using PySpark
    • Querying Airline Data in Mongo
    • Building an Airline Page in Flask
    • Linking Back to Our Airline Page
    • Creating an All Airlines Home Page
  • Curating Ontologies of Semi-structured Data
  • Improving Airlines
    • Adding Names to Carrier Codes
    • Incorporating Wikipedia Content
    • Publishing Enriched Airlines to Mongo
    • Enriched Airlines on the Web
  • Investigating Airplanes (Entities)
    • SQL Subqueries Versus Dataflow Programming
    • Dataflow Programming Without Subqueries
    • Subqueries in Spark SQL
    • Creating an Airplanes Home Page
    • Adding Search to the Airplanes Page
      • Code versus configuration
      • Configuring a search widget
      • Building an Elasticsearch query programmatically
    • Creating a Manufacturers Bar Chart
    • Iterating on the Manufacturers Bar Chart
    • Entity Resolution: Another Chart Iteration
      • Entity resolution in 30 seconds
      • Resolving manufacturers in PySpark
      • Updating our chart
      • Boeing versus Airbus revisited
      • Cleanliness: Benefits of entity resolution
  • Conclusion
• 7. Making Predictions
  • The Role of Predictions
  • Predict What?
  • Introduction to Predictive Analytics
    • Making Predictions
      • Features
      • Regression
      • Classification
  • Exploring Flight Delays
  • Extracting Features with PySpark
  • Building a Regression with scikit-learn
    • Loading Our Data
    • Sampling Our Data
    • Vectorizing Our Results
    • Preparing Our Training Data
    • Vectorizing Our Features
    • Sparse Versus Dense Matrices
    • Preparing an Experiment
    • Training Our Model
    • Testing Our Model
    • Conclusion
  • Building a Classifier with Spark MLlib
    • Loading Our Training Data with a Specified Schema
    • Addressing Nulls
    • Replacing FlightNum with Route
    • Bucketizing a Continuous Variable for Classification
      • Determining arrival delay buckets
        • Iterative visualization with histograms
        • Bucket quest conclusion
      • Bucketizing with a DataFrame UDF
      • Bucketizing with pyspark.ml.feature.Bucketizer
    • Feature Vectorization with pyspark.ml.feature
      • Vectorizing categorical columns with Spark ML
      • Vectorizing continuous variables and indexes with Spark ML
    • Classification with Spark ML
      • Test/train split with DataFrames
      • Creating and fitting a model
      • Evaluating a model
      • Conclusion
  • Conclusion
• 8. Deploying Predictive Systems
  • Deploying a scikit-learn Application as a Web Service
    • Saving and Loading scikit-learn Models
      • Saving and loading objects using pickle
      • Saving and loading models using sklearn.externals.joblib
    • Groundwork for Serving Predictions
    • Creating Our Flight Delay Regression API
      • Filling in the predict_utils API
    • Testing Our API
    • Pulling Our API into Our Product
  • Deploying Spark ML Applications in Batch with Airflow
    • Gathering Training Data in Production
    • Training, Storing, and Loading Spark ML Models
    • Creating Prediction Requests in Mongo
      • Feeding Mongo recommendation tasks from a Flask API
      • A frontend for generating prediction requests
      • Making a prediction request
    • Fetching Prediction Requests from MongoDB
    • Making Predictions in a Batch with Spark ML
      • Loading Spark ML models in PySpark
      • Making predictions with Spark ML
    • Storing Predictions in MongoDB
    • Displaying Batch Prediction Results in Our Web Application
    • Automating Our Workflow with Apache Airflow (Incubating)
      • Setting up Airflow
      • Creating a DAG for creating our model
      • Creating a DAG for operating our model
      • Using Airflow to manage and execute DAGs and tasks
        • Linking our Airflow script to the Airflow DAGs directory
        • Executing our Airflow setup script
        • Querying Airflow from the command line
        • Testing tasks in Airflow
        • Testing DAGs in Airflow
        • Monitoring tasks in the Airflow web interface
    • Conclusion
  • Deploying Spark ML via Spark Streaming
    • Gathering Training Data in Production
    • Training, Storing, and Loading Spark ML Models
    • Sending Prediction Requests to Kafka
      • Setting up Kafka
        • Start Zookeeper
        • Start the Kafka server
        • Create a topic
        • Verify our new prediction request topic
      • Feeding Kafka recommendation tasks from a Flask API
      • A frontend for generating prediction requests
        • Polling requests and LinkedIn InMaps
        • A controller for the page
        • An API controller for serving prediction responses
        • Creating a template with a polling form
      • Making a prediction request
    • Making Predictions in Spark Streaming
    • Testing the Entire System
      • Overall system summary
      • Rubber meets road
      • Paydirt!
  • Conclusion
• 9. Improving Predictions
  • Fixing Our Prediction Problem
  • When to Improve Predictions
  • Improving Prediction Performance
    • Experimental Adhesion Method: See What Sticks
    • Establishing Rigorous Metrics for Experiments
      • Defining our classification metrics
      • Feature importance
      • Implementing a more rigorous experiment
      • Comparing experiments to determine improvements
      • Inspecting changes in feature importance
      • Conclusion
    • Time of Day as a Feature
  • Incorporating Airplane Data
    • Extracting Airplane Features
    • Incorporating Airplane Features into Our Classifier Model
  • Incorporating Flight Time
  • Conclusion
• A. Manual Installation
  • Installing Hadoop
  • Installing Spark
  • Installing MongoDB
  • Installing the MongoDB Java Driver
  • Installing mongo-hadoop
    • Building mongo-hadoop
    • Installing pymongo_spark
  • Installing Elasticsearch
  • Installing Elasticsearch for Hadoop
  • Setting Up Our Spark Environment
  • Installing Kafka
  • Installing scikit-learn
  • Installing Zeppelin
• Index