Tuning Relevance in Elasticsearch with Custom Boosting
Elasticsearch offers different options out of the box in terms of ranking function (similarity function, in Lucene terminology). The default ranking function is a variation of TF-IDF, relatively simple to understand and, thanks to some smart normalisations, also quite effective in practice. Each use case is a different story so sometimes the default ranking function… Continue reading Tuning Relevance in Elasticsearch with Custom Boosting