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[DOCS] Remove outdated links for `similarity` mapping param args (#56925)

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James Rodewig 2020-05-19 11:04:53 -04:00 committed by GitHub
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docs/reference/mapping/params/similarity.asciidoc
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@ -16,14 +16,13 @@ The only similarities which can be used out of the box, without any further
configuration are:
`BM25`::
The Okapi BM25 algorithm. The algorithm used by default in Elasticsearch and Lucene.
See {defguide}/pluggable-similarites.html[Pluggable Similarity Algorithms]
for more information.
The https://en.wikipedia.org/wiki/Okapi_BM25[Okapi BM25 algorithm]. The
algorithm used by default in {es} and Lucene.
`classic`::
The TF/IDF algorithm which used to be the default in Elasticsearch and
Lucene. See {defguide}/practical-scoring-function.html[Lucene’s Practical Scoring Function]
for more information.
deprecated:[7.0.0]
The https://en.wikipedia.org/wiki/Tf%E2%80%93idf[TF/IDF algorithm], the former
default in {es} and Lucene.
`boolean`::
A simple boolean similarity, which is used when full-text ranking is not needed