SqliteMemoryStore.GetNearestMatchAsync Method
Definition
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Gets the nearest match to an embedding of type Single. Does not guarantee that the collection exists.
public System.Threading.Tasks.Task<(Microsoft.SemanticKernel.Memory.MemoryRecord, double)?> GetNearestMatchAsync (string collectionName, ReadOnlyMemory<float> embedding, double minRelevanceScore = 0, bool withEmbedding = false, System.Threading.CancellationToken cancellationToken = default);abstract member GetNearestMatchAsync : string * ReadOnlyMemory<single> * double * bool * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Nullable<ValueTuple<Microsoft.SemanticKernel.Memory.MemoryRecord, double>>>
override this.GetNearestMatchAsync : string * ReadOnlyMemory<single> * double * bool * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Nullable<ValueTuple<Microsoft.SemanticKernel.Memory.MemoryRecord, double>>>Public Function GetNearestMatchAsync (collectionName As String, embedding As ReadOnlyMemory(Of Single), Optional minRelevanceScore As Double = 0, Optional withEmbedding As Boolean = false, Optional cancellationToken As CancellationToken = Nothing) As Task(Of Nullable(Of ValueTuple(Of MemoryRecord, Double)))Parameters
- collectionName
- String
The name associated with a collection of embeddings.
- embedding
- ReadOnlyMemory<Single>
The embedding to compare the collection's embeddings with.
- minRelevanceScore
- Double
The minimum relevance threshold for returned results.
- withEmbedding
- Boolean
If true, the embedding will be returned in the memory record.
- cancellationToken
- CancellationToken
The CancellationToken to monitor for cancellation requests. The default is None.
Returns
A tuple consisting of the MemoryRecord and the similarity score as a Double. Null if no nearest match found.