You have just trained a learning to rank model and you now want to know how it performs. You can start by looking at the evaluation parameters returned by the train on the test set, but you are still not sure of which will be the impact in using it in a real website. This…
This blog post aims to give a better understanding of Docvalues and stored fields in Apache Solr for the operations in which they can be used interchangeably.
Apache Lucene/Solr have been central to me for the last 10 years:I am honoured to announce I am now an APACHE LUCENE/SOLR COMMITTER ! And I am happy 🙂
This blog post is about our latest contribution to the Apache Lucene/Solr project:introducing the ability of assigning different weights to synonyms.This contribution aims to help users that deal with complex synonyms dictionaries where it’s important to associate a numerical weight to each of them, for example to boost the ones that are more important in…
Info about our speakers and talk at the London Information Retrieval Meetup in February 2020 in London (UK).
In this post we describe what is an Intervals Table and how to build it using a Behaviour-Driven-Development (BDD) approach.
In this post we describe an approach to solve the problem of an application that requires both Full and Atomic Updates, using one of the powerful concepts in Object Oriented Programming: Polymorphism.
The London Information Retrieval Meetup (11/02/2020) is a free evening meetup aimed to Information Retrieval passionates and professionals.
Let’s say you need to write a component, a request handler, or in general some piece of custom code that needs to be plugged into Solr. Or, you need to have a deeper understanding about some Lucene/Solr internals, following what actually happens within the code. I know: unit tests, integration tests, everything to make…
It was the spring of 2018, and Andrea was strenuously working on a customer project, continuously tuning search configurations and checking the ground truth for certain queries manually. That was pretty much the standard at the time, the brilliant Quepid from our friends at Open Source Connection helped in some use cases, but there was…