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. |