Rationale: common terms are less important than uncommon ones Implication: the greater the occurrence of a term in different documents, the lower its score Implementation: log(numDocs/(docFreq+1)) + 1
Rationale: documents which contains more of a term are generally more relevant Implication: the more frequent a term occurs in a document, the greater its score Note: the implication of these factors should be read as, "Everything else being equal. The implementation, implication and rationales of factors 1,2, 3 and 4 in DefaultSimilarity.java, which is what you get if you don't explicitly specify a similarity, are: boost (query) = boost of the field at query-time.boost (index) = boost of the field at index-time.
By default, OpenSearch executes the explain operation on random shards. Available options are _local, which tells the operation to retrieve results from a locally allocated shard replica, and a custom string value assigned to a specific shard replica. Specifies a preference of which shard to retrieve results from. Specifies whether OpenSearch should ignore format-based query failures (for example, querying a text field for an integer). The default field in case a field prefix is not provided in the query string. Indicates whether the default operator for a string query should be AND or OR. Specifies whether to analyze wildcard and prefix queries. You can only specify a single index.Ī unique identifier to attach to the document. Snapshot Management in OpenSearch Dashboards.