Solr Json API Tutorial
Edismax is the query parser-of-choice for many Solr applications. The default behaviors are correct for a wide range of use cases. The syntax has become familiar. While edismax has…
Recap of Activate 2018
This article is been a bit late, but better late than never. Activate was a fantastic conference, and Lucidworks and the Montreal Sheraton were gracious hosts. These are a…
Exploring Solr’s OpenNLP Integrations
We’ve focused most of our conversation about machine learning and search on Learning to Rank (LTR), but LTR isn’t the only machine learning tool in the Solr/Elasticsearch toolbox. LTR…
Caching In Elasticsearch
Responding to queries takes CPU time, memory, and in unfortunate cases, wall time as well. Increasing the power of a cluster helps, over-provisioning can be very expensive. Caching is…
Is Your Infrastructure Ready For Learning To Rank?
In previous articles, we introduced Learning to Rank (LTR) for Elasticsearch 1, 2, which uses machine learning to re-score the best documents in a query. On the surface, it…
What is Learning To Rank?
As an engineer, artificial intelligence (AI) is cool. Spaceships and science fiction cool. There has been a lot of attention around machine learning and artificial intelligence lately. Some of…
Solr UTF-8 Character Handling
Searching for non-ASCII characters can be a challenge. There are a number of reasons for doing so, even in a primarily English corpus: Accented characters in names and words…
Crawling with Nutch
Recently, I had a client using LucidWorks search engine who needed to integrate with the Nutch crawler. This sounds simple as both products have been around for a while…