SqliteMemoryStore.GetNearestMatchesAsync Method
Definition
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Gets the nearest matches to an embedding of type Single. Does not guarantee that the collection exists.
public System.Collections.Generic.IAsyncEnumerable<(Microsoft.SemanticKernel.Memory.MemoryRecord, double)> GetNearestMatchesAsync (string collectionName, ReadOnlyMemory<float> embedding, int limit, double minRelevanceScore = 0, bool withEmbeddings = false, System.Threading.CancellationToken cancellationToken = default);abstract member GetNearestMatchesAsync : string * ReadOnlyMemory<single> * int * double * bool * System.Threading.CancellationToken -> System.Collections.Generic.IAsyncEnumerable<ValueTuple<Microsoft.SemanticKernel.Memory.MemoryRecord, double>>
override this.GetNearestMatchesAsync : string * ReadOnlyMemory<single> * int * double * bool * System.Threading.CancellationToken -> System.Collections.Generic.IAsyncEnumerable<ValueTuple<Microsoft.SemanticKernel.Memory.MemoryRecord, double>>Public Function GetNearestMatchesAsync (collectionName As String, embedding As ReadOnlyMemory(Of Single), limit As Integer, Optional minRelevanceScore As Double = 0, Optional withEmbeddings As Boolean = false, Optional cancellationToken As CancellationToken = Nothing) As IAsyncEnumerable(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.
- limit
- Int32
The maximum number of similarity results to return.
- minRelevanceScore
- Double
The minimum cosine similarity threshold for returned results.
- withEmbeddings
- Boolean
If true, the embeddings will be returned in the memory records.
- cancellationToken
- CancellationToken
The CancellationToken to monitor for cancellation requests. The default is None.
Returns
A group of tuples where item1 is a MemoryRecord and item2 is its similarity score as a Double.