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ashwinkumar12345 2021-08-16 12:01:53 -07:00
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_opensearch/rest-api/explain.md
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@ -13,7 +13,7 @@ Wondering why a specific document ranks higher (or lower) for a query? You can u
OpenSearch uses a probabilistic ranking framework called [Okapi BM25](https://en.wikipedia.org/wiki/Okapi_BM25) to calculate relevance scores. Okapi BM25 is based on the original [TF/IDF](http://lucene.apache.org/core/4_0_0/core/org/apache/lucene/search/package-summary.html#scoring) framework used by Apache Lucene. OpenSearch uses a probabilistic ranking framework called [Okapi BM25](https://en.wikipedia.org/wiki/Okapi_BM25) to calculate relevance scores. Okapi BM25 is based on the original [TF/IDF](http://lucene.apache.org/core/4_0_0/core/org/apache/lucene/search/package-summary.html#scoring) framework used by Apache Lucene.
The explain API is an expensive operation in terms of both resources and time. We recommend you don't use it for production workloads. The explain API is an expensive operation in terms of both resources and time. On production clusters, we recommend using it sparingly for the purpose of troubleshooting.
{: .warning } {: .warning }
@ -32,7 +32,7 @@ POST kibana_sample_data_ecommerce/_search?explain=true
} }
``` ```
To see the explain output for a specific document, specify the document ID in the URL: More often, you want the output for a single document. In that case, specify the document ID in the URL:
```json ```json
POST kibana_sample_data_ecommerce/_explain/EVz1Q3sBgg5eWQP6RSte POST kibana_sample_data_ecommerce/_explain/EVz1Q3sBgg5eWQP6RSte