In reading an explanation of ES's More Like This query type, I remain confused. It sounds like it does this, but I'm seeking confirmation: Given a document, use TFIDF to extract the most relevant terms Given those relevant terms, use the standard term query, ORing all the relevant terms together. Is this correct? And it correct to assume that step #2 uses BM25 for ranking?

Does ElasticSearch's More Like This query use BM25?

In reading an explanation of ES's More Like This query type, I remain confused. It sounds like it does this, but I'm seeking confirmation:

Given a document, use TFIDF to extract the most relevant terms
Given those relevant terms, use the standard term query, ORing all the relevant terms together.

Is this correct? And it correct to assume that step #2 uses BM25 for ranking?