// our training

Search Relevance

This Search Relevance Training teaches you how to design, develop, and configure your open source search engine to maximize how well the search results fit the user information need. Join us as we explore the milestones of search relevance to the deep internals of Apache Lucene and Elasticsearch.
Exercises and war stories from real-world problems and solutions are included.


• Familiarity with search engine technologies;
• Familiarity with Elasticsearch.


• Deep understanding of how query-matching work;s
• Deep understanding of how search result ranking works;
• Capacity of customizing and tuning your system relevance function;
• Better debugging/troubleshooting ability;
• How to measure the search quality of your engine.


Technical Managers, Technical Leads, Software Engineers, Developers, Information Retrieval Passionates.

Based on experience with leading companies including


coming soon

We are working to provide a pre-recorded version of our bestseller training. If you want to receive an email as soon as we publish it, subscribe to our newsletter.
  • Top expert trainers
  • Q&A by e-mail
  • Certificate of Attendance


ask for quote

If you are looking for intensive sessions tailored on your (or your team) experience, then private training is your perfect choice! You can choose between online or live training.
  • In-presence or Online
  • Tailored training
  • Top expert trainers
  • Certificate of Attendance
Contact us
// Search Relevance Elasticsearch

Our Trainer

Alessandro Benedetti


Alessandro has been involved in designing and developing search-relevant solutions since 2010.
Over the years he has worked on various projects, with various open source technologies, aiming to build search solutions able to satisfy the user information needs, often integrating such solutions with machine learning and artificial intelligence technologies.

Full Program

  • Introduction to Information Retrieval

  • Apache Lucene

  • Elasticsearch

  • The Inverted Index

  • Mapping and Text Analysis

  • Apache Lucene scoring and document similarity

  • Validate API

  • Explain API

  • Query DSL

  • Leaf query clauses

  • Emphasis on Multi Match Query Clause

  • Field centric vs term centric approach

  • Compound Query Clauses

  • Emphasis on Disjunction Max

  • Emphasis on Function Score

  • Additive and Multiplicative boost functions and queries

  • Distributed search relevance considerations

  • Search Quality Evaluation: how to test your relevance

  • Learning to Rank: a machine learning approach for relevance

  • Language Modelling and vector-based search: the neural approach to relevance

  • Search Relevance War Stories

Alessandro provided an extremely personalised and highly engaging 1-to-1 training, and kept extreme patience to explain and proof details of lucene and elasticsearch internals in his teaching. Overall we discussed a lot of things in capacity, the guidance made me build strong foundations and moved quickly into advanced areas. It has been a pleasure learning under his guidance.
Vivek Atwal
Sr. NLP Engineer
Frequently Asked Question

Being a private training, you can choose to book an online training or in-presence training!
We are working on being able to provide a recording of the training for those interested.

Everyone can participate on this training, the only prerequisites are written just over there!

The Search Relevance for Elasticsearch Training last around 12 hours. You can split the hours into more days at your convenience.

You will be able to ask every question you have during the training! For the recorded version a Q&A session by e-mail is scheduled together with the attendee.

Your teacher will be:
  – Alessandro Benedetti, Apache Lucene/Solr committer and Apache Solr PMC member.

Sure, at the end of the training you will receive a certificate of attendance by e-mail.

If you can’t attend last minute you can contact us and reschedule for a different date with our team. If the training is in-presence, all the expenses should be covered.

Yes, you can contact us and find the best option for you and your team!