Returns the average of cosine distances between vectors a and b
first vector
second vector
Method to add documents to the memory vector store. It extracts the text from each document, generates embeddings for them, and adds the resulting vectors to the store.
Array of Document instances to be added to the store.
Promise that resolves when all documents have been added.
Method to add vectors to the memory vector store. It creates
MemoryVector instances for each vector and document pair and adds
them to the store.
Array of vectors to be added to the store.
Array of Document instances corresponding to the vectors.
Promise that resolves when all vectors have been added.
OptionalkOrFields: number | Partial<VectorStoreRetrieverInput<FakeVectorStore>>Optionalfilter: ((doc: Document<Record<string, any>>) => boolean)Optionalcallbacks: CallbacksOptionaltags: string[]Optionalmetadata: Record<string, unknown>Optionalverbose: booleanOptionalmaxReturn documents selected using the maximal marginal relevance. Maximal marginal relevance optimizes for similarity to the query AND diversity among selected documents.
Text to look up documents similar to.
Method to perform a similarity search in the memory vector store. It
calculates the similarity between the query vector and each vector in
the store, sorts the results by similarity, and returns the top k
results along with their scores.
Query vector to compare against the vectors in the store.
Number of top results to return.
Optionalfilter: ((doc: Document<Record<string, any>>) => boolean)Optional filter function to apply to the vectors before performing the search.
Promise that resolves with an array of tuples, each containing a Document and its similarity score.
StaticfromStatic method to create a FakeVectorStore instance from an array of
Document instances. It adds the documents to the store.
Array of Document instances to be added to the store.
Embeddings instance used to generate embeddings for the documents.
OptionaldbConfig: FakeVectorStoreArgsOptional FakeVectorStoreArgs to configure the FakeVectorStore instance.
Promise that resolves with a new FakeVectorStore instance.
StaticfromStatic method to create a FakeVectorStore instance from an existing
index. It creates a new FakeVectorStore instance without adding any
documents or vectors.
Embeddings instance used to generate embeddings for the documents.
OptionaldbConfig: FakeVectorStoreArgsOptional FakeVectorStoreArgs to configure the FakeVectorStore instance.
Promise that resolves with a new FakeVectorStore instance.
StaticfromStatic method to create a FakeVectorStore instance from an array of
texts. It creates a Document for each text and metadata pair, and
adds them to the store.
Array of texts to be added to the store.
Array or single object of metadata corresponding to the texts.
Embeddings instance used to generate embeddings for the texts.
OptionaldbConfig: FakeVectorStoreArgsOptional FakeVectorStoreArgs to configure the FakeVectorStore instance.
Promise that resolves with a new FakeVectorStore instance.
Class that extends
VectorStoreto store vectors in memory. Provides methods for adding documents, performing similarity searches, and creating instances from texts, documents, or an existing index.