Google Cloud Ai Platform V1 Client - Class Query (1.21.0)

Reference documentation and code samples for the Google Cloud Ai Platform V1 Client class Query.

A query to find a number of the nearest neighbors (most similar vectors) of a vector.

Generated from protobuf message google.cloud.aiplatform.v1.FindNeighborsRequest.Query

Namespace

Google \ Cloud \ AIPlatform \ V1 \ FindNeighborsRequest

Methods

__construct

Constructor.

Parameters
Name
Description
data
array

Optional. Data for populating the Message object.

↳ rrf
Query\RRF

Optional. Represents RRF algorithm that combines search results.

↳ datapoint
Google\Cloud\AIPlatform\V1\IndexDatapoint

Required. The datapoint/vector whose nearest neighbors should be searched for.

↳ neighbor_count
int

The number of nearest neighbors to be retrieved from database for each query. If not set, will use the default from the service configuration ( https://cloud.google.com/vertex-ai/docs/matching-engine/configuring-indexes#nearest-neighbor-search-config ).

↳ per_crowding_attribute_neighbor_count
int

Crowding is a constraint on a neighbor list produced by nearest neighbor search requiring that no more than some value k' of the k neighbors returned have the same value of crowding_attribute. It's used for improving result diversity. This field is the maximum number of matches with the same crowding tag.

↳ approximate_neighbor_count
int

The number of neighbors to find via approximate search before exact reordering is performed. If not set, the default value from scam config is used; if set, this value must be > 0.

↳ fraction_leaf_nodes_to_search_override
float

The fraction of the number of leaves to search, set at query time allows user to tune search performance. This value increase result in both search accuracy and latency increase. The value should be between 0.0 and 1.0. If not set or set to 0.0, query uses the default value specified in NearestNeighborSearchConfig.TreeAHConfig.fraction_leaf_nodes_to_search.

getRrf

Optional. Represents RRF algorithm that combines search results.

Returns
Type
Description
Query\RRF |null

hasRrf

setRrf

Optional. Represents RRF algorithm that combines search results.

Parameter
Name
Description
var
Returns
Type
Description
$this

getDatapoint

Required. The datapoint/vector whose nearest neighbors should be searched for.

Returns
Type
Description

hasDatapoint

clearDatapoint

setDatapoint

Required. The datapoint/vector whose nearest neighbors should be searched for.

Parameter
Name
Description
Returns
Type
Description
$this

getNeighborCount

The number of nearest neighbors to be retrieved from database for each query. If not set, will use the default from the service configuration ( https://cloud.google.com/vertex-ai/docs/matching-engine/configuring-indexes#nearest-neighbor-search-config ).

Returns
Type
Description
int

setNeighborCount

The number of nearest neighbors to be retrieved from database for each query. If not set, will use the default from the service configuration ( https://cloud.google.com/vertex-ai/docs/matching-engine/configuring-indexes#nearest-neighbor-search-config ).

Parameter
Name
Description
var
int
Returns
Type
Description
$this

getPerCrowdingAttributeNeighborCount

Crowding is a constraint on a neighbor list produced by nearest neighbor search requiring that no more than some value k' of the k neighbors returned have the same value of crowding_attribute.

It's used for improving result diversity. This field is the maximum number of matches with the same crowding tag.

Returns
Type
Description
int

setPerCrowdingAttributeNeighborCount

Crowding is a constraint on a neighbor list produced by nearest neighbor search requiring that no more than some value k' of the k neighbors returned have the same value of crowding_attribute.

It's used for improving result diversity. This field is the maximum number of matches with the same crowding tag.

Parameter
Name
Description
var
int
Returns
Type
Description
$this

getApproximateNeighborCount

The number of neighbors to find via approximate search before exact reordering is performed. If not set, the default value from scam config is used; if set, this value must be > 0.

Returns
Type
Description
int

setApproximateNeighborCount

The number of neighbors to find via approximate search before exact reordering is performed. If not set, the default value from scam config is used; if set, this value must be > 0.

Parameter
Name
Description
var
int
Returns
Type
Description
$this

getFractionLeafNodesToSearchOverride

The fraction of the number of leaves to search, set at query time allows user to tune search performance. This value increase result in both search accuracy and latency increase. The value should be between 0.0 and 1.0. If not set or set to 0.0, query uses the default value specified in NearestNeighborSearchConfig.TreeAHConfig.fraction_leaf_nodes_to_search.

Returns
Type
Description
float

setFractionLeafNodesToSearchOverride

The fraction of the number of leaves to search, set at query time allows user to tune search performance. This value increase result in both search accuracy and latency increase. The value should be between 0.0 and 1.0. If not set or set to 0.0, query uses the default value specified in NearestNeighborSearchConfig.TreeAHConfig.fraction_leaf_nodes_to_search.

Parameter
Name
Description
var
float
Returns
Type
Description
$this

getRanking

Returns
Type
Description
string
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