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Elasticsearch Server - Third Edition

You're reading from   Elasticsearch Server - Third Edition Leverage Elasticsearch to create a robust, fast, and flexible search solution with ease

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Product type Paperback
Published in Feb 2016
Publisher
ISBN-13 9781785888816
Length 556 pages
Edition 3rd Edition
Languages
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Authors (2):
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Rafal Kuc Rafal Kuc
Author Profile Icon Rafal Kuc
Rafal Kuc
Marek Rogozinski Marek Rogozinski
Author Profile Icon Marek Rogozinski
Marek Rogozinski
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Toc

Table of Contents (13) Chapters Close

Preface 1. Getting Started with Elasticsearch Cluster FREE CHAPTER 2. Indexing Your Data 3. Searching Your Data 4. Extending Your Querying Knowledge 5. Extending Your Index Structure 6. Make Your Search Better 7. Aggregations for Data Analysis 8. Beyond Full-text Searching 9. Elasticsearch Cluster in Detail 10. Administrating Your Cluster 11. Scaling by Example Index

Chapter 7. Aggregations for Data Analysis

In the previous chapter, we discussed the querying side of Elasticsearch again. We learned how the Lucene TF/IDF algorithm works and how to use Elasticsearch scripting capabilities. We handled multilingual data and influenced document scores with boosts. We used synonyms to match words that have the same meaning and we used Elasticsearch Explain API to see how document scores were calculated. By the end of this chapter, you will have learned the following topics:

  • What are aggregations
  • How the Elasticsearch aggregation engine works
  • How to use metrics aggregations
  • How to use buckets aggregations
  • How to use pipeline aggregations
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