Elasticsearch score disable IDF

Question

I\'m using ES for searching a huge list of human names employing fuzzy search techniques.

TF is applicable for scoring, but IDF is really not required for me in this

Answer 1

When create index, we can put our own similarity calculate method into the setting parts, if you need only disable IDF and use others as the default setting, you can write just a simple script such as:

"script": {"source": "double tf = Math.sqrt(doc.freq); double idf = 1.0; double norm = 1/Math.sqrt(doc.length); return query.boost * tf * idf * norm;"`}

This is shown here.