INDEX_ACCURACY

INDEX_ACCURACY_QUERY

Use the DBMS_VECTOR.INDEX_ACCURACY_QUERY function to verify the accuracy of a vector index for a given query vector, top-K, and target accuracy.

Syntax

DBMS_VECTOR.INDEX_ACCURACY_QUERY (
    OWNER_NAME         IN VARCHAR2,
    INDEX_NAME         IN VARCHAR2,
    QV                 IN VECTOR,
    TOP_K              IN NUMBER,
    TARGET_ACCURACY    IN NUMBER
) return VARCHAR2;

DBMS_VECTOR.INDEX_ACCURACY_QUERY (
    OWNER_NAME         IN VARCHAR2, 
    INDEX_NAME         IN VARCHAR2,
    QV                 IN VECTOR,
    TOP_K              IN NUMBER,
    QUERY_PARAM        IN JSON
) return VARCHAR2;

Parameters

Table 12-4 INDEX_ACCURACY_QUERY (IN) Parameters of DBMS_VECTOR

Parameter	Description
`owner_name`	The name of the vector index owner.
`index_name`	The name of the vector index.
`qv`	Specifies the query vector.
`top_k`	The `top_k` value for accuracy computation.
`target_accuracy`	The target accuracy value for the vector index.

For information about determining the accuracy of your vector indexes, see Index Accuracy Report in Oracle Database AI Vector Search User's Guide.

Parent topic: DBMS_VECTOR