Introducing Weighted Synonyms in Apache Lucene/Solr
This blog post is about our latest contribution to the Apache Lucene project: introducing weighted synonyms to provide better query expansion.
Alessandro Benedetti
March 2, 2020
Apache Solr Atomic Updates: a Polymorphic Approach
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.
Andrea Gazzarini
January 28, 2020
Digging in the Solr code: 5 minutes how to
Let’s quickly setup a Solr development environment for implementation and debugging purposes, with our 5 minutes how to!
Andrea Gazzarini
December 31, 2019
The Request Handlers Jungle – handleSelect and qt Parameter
This blog post is about the handleSelect and qt parameter in Apache Solr and their relation with the Request Handler mechanism.
Alessandro Benedetti
December 6, 2019
Apache Solr ChildDocTransformerFactory: How to Build Complex ChildFilter Queries
A guide through the rough sea of Nested Documents in Apache Solr to build childFIlter queries and use Solrj to get the results back.
Alessandro Benedetti
June 4, 2019
Apache Solr Facets and ACL Filters Using Tag and Exclusion
Tag and Exclusion for Apache Solr Faceting is often misused. Here’s a guide to optimal utilisation with a focus on ACL filtering scenarios.
Alessandro Benedetti
December 24, 2018
Apache Solr Distributed Facets
How faceting is calculated in Apache Solr distributed architectures. It presents inner details explanation and practical examples.
Alessandro Benedetti
October 23, 2018
Apache Solr/Elasticsearch: How to Manage Multi-term Concepts out of the Box?
Approach for searching multi-term entities/concepts out-of-the-box, without installing any additional components.
Andrea Gazzarini
July 22, 2018
SolrCloud exceptions with Apache Zookeeper
Practical tips to follow when your client application encounters some classic exceptions dealing with SolrCloud and Apache Zookeeper.
Alessandro Benedetti
May 31, 2018
Apache Solr: orchestrating Known item and Full-text search
Approach for combining a Known Item Search with a regular Full-text Search, in a sample e-commerce context, using Apache Solr.
Andrea Gazzarini
May 30, 2018
We are Sease, an Information Retrieval Company based in London, focused on providing R&D project guidance and implementation, Search consulting services, Training, and Search solutions using open source software like Apache Lucene/Solr, Elasticsearch, OpenSearch and Vespa.
