Concept Operators

Concept operators combine the meaning of search elements to identify a concept in a document. Documents retrieved using concept operators are relevance-ranked. The following table describes each concept operator:

Operator name	Description
`ACCRUE`	Selects documents that include at least one of the search elements you specify. The more search elements are present, the higher the score will be.
`ALL`	Selects documents that contain all of the search elements you specify. A score of 100 is assigned to each retrieved document. `ALL` and `AND` are similar and they retrieve the same results. Queries using `ALL` are not relevance-ranked (all retrieval results are assigned a score of 100).
`AND`	Selects documents that contain all of the search elements you specify. A score is calculated for each retrieved document. `AND` and `ALL` are similar and they retrieve the same results. Queries using `AND` are relevance-ranked (retrieved documents are assigned a score between 0 and 100).
`ANY`	Selects documents that contain at least one of the search elements you specify. A score of 100 is assigned to each retrieved document. `ANY` and `OR` are similar and they retrieve the same results. Queries using `ANY` are not relevance-ranked (all retrieval results are assigned a score of 100).
`OR`	Selects documents that contain at least one of the search elements you specify. A score is calculated for each retrieved document. `OR` and `ANY` are similar and they retrieve the same results. Queries using `OR` are relevance-ranked (retrieval documents are assigned a score between 0 and 100).
`TOPIC`	Selects documents that contain at least one of the search elements you specify, covered by the specified topic. A score is calculated for each retrieved document. How topics work and how they can be configured is described in the Verity documentation which is available as an option.