In this blogpost I want to explore what possibilities elasticsearch gives us for storing fields and retrieve them at query time from the performance point of view. In fact, lucene, the underlying library upon which elasticsearch and solr are built, provides two ways for storing and retrieving fields: stored fields and docvalues. In addition, elasticsearch…
Introduction With Rated Ranking Evaluator Enterprise approaching soon, we take the occasion of explaining in details why Offline Search Quality Evaluation is so important nowadays and what you can do already with the Rated Ranking Evaluator open-source libraries. More news will come soon as we are approaching the V1 release date. Stay tuned! Search Quality…
After the success of the past editions, we are happy to announce the seventh London Information Retrieval Meetup, a free evening meetup aimed to Information Retrieval passionates and professionals who are curious to explore and discuss the latest trends in the field.This time we go fully remote, given the COVID-19 situation and the impossibility of…
In this blog post we will briefly recap things we can’t do when using the alias field type in Elasticsearch.
It was the spring of 2018, 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[1] from our friends at Open Source Connection helped in some use cases, but there was nothing…
This blog is a quick summary of my (subjective) experience at Haystack 2019 : the Search Relevance Conference, hosted in Charlottesville (Virginia, USA) from 24/04/2019 to 25/04/2019.References to the slides will be updated as soon as they become available. First of all my feedback on the Haystack Conference is extremely positive.From my perspective the conference…
In this post we’ll cover two additional synonyms scenarios and we’ll try to summarise all previous tips in a coincise form.
Synonyms and Stopwords: how to deal with missing synonym detection when the original text contains some “intruder” stopword?
How can we manage synonyms and stopwords at query time? In this article we will try to address this specific and very popular use case.
Approach for searching multi-term entities/concepts out-of-the-box, without installing any additional components.
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