mirror of
https://github.com/Mintplex-Labs/langchain-python.git
synced 2026-07-18 18:34:27 -04:00
e41b382e1c
### Description: Updated the delete function in the Pinecone integration to allow for deletion of vectors by specifying a filter condition, and to delete all vectors in a namespace. Made the ids parameter optional in the delete function in the base VectorStore class and allowed for additional keyword arguments. Updated the delete function in several classes (Redis, Chroma, Supabase, Deeplake, Elastic, Weaviate, and Cassandra) to match the changes made in the base VectorStore class. This involved making the ids parameter optional and allowing for additional keyword arguments.
790 lines
32 KiB
Python
790 lines
32 KiB
Python
"""Wrapper around Activeloop Deep Lake."""
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from __future__ import annotations
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import logging
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from typing import Any, Callable, Dict, Iterable, List, Optional, Tuple, Union
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import numpy as np
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try:
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import deeplake
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from deeplake.core.fast_forwarding import version_compare
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from deeplake.core.vectorstore import DeepLakeVectorStore
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_DEEPLAKE_INSTALLED = True
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except ImportError:
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_DEEPLAKE_INSTALLED = False
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from langchain.docstore.document import Document
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from langchain.embeddings.base import Embeddings
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from langchain.vectorstores.base import VectorStore
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from langchain.vectorstores.utils import maximal_marginal_relevance
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logger = logging.getLogger(__name__)
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class DeepLake(VectorStore):
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"""Wrapper around Deep Lake, a data lake for deep learning applications.
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We integrated deeplake's similarity search and filtering for fast prototyping,
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Now, it supports Tensor Query Language (TQL) for production use cases
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over billion rows.
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Why Deep Lake?
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- Not only stores embeddings, but also the original data with version control.
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- Serverless, doesn't require another service and can be used with major
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cloud providers (S3, GCS, etc.)
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- More than just a multi-modal vector store. You can use the dataset
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to fine-tune your own LLM models.
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To use, you should have the ``deeplake`` python package installed.
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Example:
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.. code-block:: python
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from langchain.vectorstores import DeepLake
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from langchain.embeddings.openai import OpenAIEmbeddings
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embeddings = OpenAIEmbeddings()
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vectorstore = DeepLake("langchain_store", embeddings.embed_query)
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"""
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_LANGCHAIN_DEFAULT_DEEPLAKE_PATH = "./deeplake/"
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def __init__(
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self,
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dataset_path: str = _LANGCHAIN_DEFAULT_DEEPLAKE_PATH,
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token: Optional[str] = None,
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embedding_function: Optional[Embeddings] = None,
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read_only: bool = False,
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ingestion_batch_size: int = 1000,
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num_workers: int = 0,
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verbose: bool = True,
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exec_option: str = "python",
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**kwargs: Any,
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) -> None:
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"""Creates an empty DeepLakeVectorStore or loads an existing one.
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The DeepLakeVectorStore is located at the specified ``path``.
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Examples:
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>>> # Create a vector store with default tensors
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>>> deeplake_vectorstore = DeepLake(
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... path = <path_for_storing_Data>,
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... )
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>>>
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>>> # Create a vector store in the Deep Lake Managed Tensor Database
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>>> data = DeepLake(
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... path = "hub://org_id/dataset_name",
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... exec_option = "tensor_db",
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... )
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Args:
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dataset_path (str): Path to existing dataset or where to create
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a new one. Defaults to _LANGCHAIN_DEFAULT_DEEPLAKE_PATH.
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token (str, optional): Activeloop token, for fetching credentials
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to the dataset at path if it is a Deep Lake dataset.
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Tokens are normally autogenerated. Optional.
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embedding_function (str, optional): Function to convert
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either documents or query. Optional.
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read_only (bool): Open dataset in read-only mode. Default is False.
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ingestion_batch_size (int): During data ingestion, data is divided
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into batches. Batch size is the size of each batch.
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Default is 1000.
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num_workers (int): Number of workers to use during data ingestion.
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Default is 0.
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verbose (bool): Print dataset summary after each operation.
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Default is True.
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exec_option (str): DeepLakeVectorStore supports 3 ways to perform
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searching - "python", "compute_engine", "tensor_db".
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Default is "python".
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- ``python`` - Pure-python implementation that runs on the client.
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WARNING: using this with big datasets can lead to memory
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issues. Data can be stored anywhere.
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- ``compute_engine`` - C++ implementation of the Deep Lake Compute
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Engine that runs on the client. Can be used for any data stored in
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or connected to Deep Lake. Not for in-memory or local datasets.
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- ``tensor_db`` - Hosted Managed Tensor Database that is
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responsible for storage and query execution. Only for data stored in
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the Deep Lake Managed Database. Use runtime = {"db_engine": True} during
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dataset creation.
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**kwargs: Other optional keyword arguments.
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Raises:
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ValueError: If some condition is not met.
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"""
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self.ingestion_batch_size = ingestion_batch_size
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self.num_workers = num_workers
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self.verbose = verbose
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if _DEEPLAKE_INSTALLED is False:
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raise ValueError(
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"Could not import deeplake python package. "
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"Please install it with `pip install deeplake`."
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)
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if version_compare(deeplake.__version__, "3.6.2") == -1:
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raise ValueError(
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"deeplake version should be >= 3.6.3, but you've installed"
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f" {deeplake.__version__}. Consider upgrading deeplake version \
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pip install --upgrade deeplake."
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)
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self.dataset_path = dataset_path
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self.vectorstore = DeepLakeVectorStore(
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path=self.dataset_path,
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embedding_function=embedding_function,
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read_only=read_only,
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token=token,
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exec_option=exec_option,
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verbose=verbose,
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**kwargs,
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)
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self._embedding_function = embedding_function
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self._id_tensor_name = "ids" if "ids" in self.vectorstore.tensors() else "id"
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def add_texts(
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self,
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texts: Iterable[str],
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metadatas: Optional[List[dict]] = None,
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ids: Optional[List[str]] = None,
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**kwargs: Any,
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) -> List[str]:
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"""Run more texts through the embeddings and add to the vectorstore.
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Examples:
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>>> ids = deeplake_vectorstore.add_texts(
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... texts = <list_of_texts>,
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... metadatas = <list_of_metadata_jsons>,
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... ids = <list_of_ids>,
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... )
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Args:
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texts (Iterable[str]): Texts to add to the vectorstore.
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metadatas (Optional[List[dict]], optional): Optional list of metadatas.
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ids (Optional[List[str]], optional): Optional list of IDs.
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**kwargs: other optional keyword arguments.
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Returns:
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List[str]: List of IDs of the added texts.
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"""
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kwargs = {}
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if ids:
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if self._id_tensor_name == "ids": # for backwards compatibility
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kwargs["ids"] = ids
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else:
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kwargs["id"] = ids
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if metadatas is None:
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metadatas = [{}] * len(list(texts))
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return self.vectorstore.add(
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text=texts,
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metadata=metadatas,
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embedding_data=texts,
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embedding_tensor="embedding",
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embedding_function=kwargs.get("embedding_function")
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or self._embedding_function.embed_documents, # type: ignore
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return_ids=True,
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**kwargs,
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)
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def _search_tql(
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self,
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tql_query: Optional[str],
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exec_option: Optional[str] = None,
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return_score: bool = False,
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) -> Any[List[Document], List[Tuple[Document, float]]]:
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"""Function for performing tql_search.
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Args:
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tql_query (str): TQL Query string for direct evaluation.
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Available only for `compute_engine` and `tensor_db`.
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exec_option (str, optional): Supports 3 ways to search.
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Could be "python", "compute_engine" or "tensor_db". Default is "python".
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- ``python`` - Pure-python implementation for the client.
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WARNING: not recommended for big datasets due to potential memory
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issues.
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- ``compute_engine`` - C++ implementation of Deep Lake Compute
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Engine for the client. Not for in-memory or local datasets.
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- ``tensor_db`` - Hosted Managed Tensor Database for storage
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and query execution. Only for data in Deep Lake Managed Database.
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Use runtime = {"db_engine": True} during dataset creation.
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return_score (bool): Return score with document. Default is False.
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Returns:
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List[Document] - A list of documents
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Raises:
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ValueError: If return_score is True but some condition is not met.
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"""
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result = self.vectorstore.search(
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query=tql_query,
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exec_option=exec_option,
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)
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metadatas = result["metadata"]
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texts = result["text"]
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docs = [
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Document(
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page_content=text,
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metadata=metadata,
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)
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for text, metadata in zip(texts, metadatas)
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]
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if return_score:
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raise ValueError("scores can't be returned with tql search")
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return docs
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def _search(
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self,
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query: Optional[str] = None,
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embedding: Optional[Union[List[float], np.ndarray]] = None,
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embedding_function: Optional[Callable] = None,
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k: int = 4,
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distance_metric: str = "L2",
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use_maximal_marginal_relevance: bool = False,
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fetch_k: Optional[int] = 20,
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filter: Optional[Union[Dict, Callable]] = None,
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return_score: bool = False,
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exec_option: Optional[str] = None,
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**kwargs: Any,
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) -> Any[List[Document], List[Tuple[Document, float]]]:
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"""
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Return docs similar to query.
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Args:
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query (str, optional): Text to look up similar docs.
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embedding (Union[List[float], np.ndarray], optional): Query's embedding.
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embedding_function (Callable, optional): Function to convert `query`
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into embedding.
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k (int): Number of Documents to return.
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distance_metric (str): `L2` for Euclidean, `L1` for Nuclear, `max`
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for L-infinity distance, `cos` for cosine similarity, 'dot' for dot
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product.
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filter (Union[Dict, Callable], optional): Additional filter prior
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to the embedding search.
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- ``Dict`` - Key-value search on tensors of htype json, on an
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AND basis (a sample must satisfy all key-value filters to be True)
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Dict = {"tensor_name_1": {"key": value},
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"tensor_name_2": {"key": value}}
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- ``Function`` - Any function compatible with `deeplake.filter`.
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use_maximal_marginal_relevance (bool): Use maximal marginal relevance.
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fetch_k (int): Number of Documents for MMR algorithm.
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return_score (bool): Return the score.
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exec_option (str, optional): Supports 3 ways to perform searching.
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Could be "python", "compute_engine" or "tensor_db".
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- ``python`` - Pure-python implementation for the client.
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WARNING: not recommended for big datasets.
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- ``compute_engine`` - C++ implementation of Deep Lake Compute
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Engine for the client. Not for in-memory or local datasets.
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- ``tensor_db`` - Hosted Managed Tensor Database for storage
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and query execution. Only for data in Deep Lake Managed Database.
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Use runtime = {"db_engine": True} during dataset creation.
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**kwargs: Additional keyword arguments.
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Returns:
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List of Documents by the specified distance metric,
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if return_score True, return a tuple of (Document, score)
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Raises:
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ValueError: if both `embedding` and `embedding_function` are not specified.
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"""
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if kwargs.get("tql_query"):
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return self._search_tql(
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tql_query=kwargs["tql_query"],
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exec_option=exec_option,
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return_score=return_score,
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)
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if embedding_function:
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if isinstance(embedding_function, Embeddings):
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_embedding_function = embedding_function.embed_query
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else:
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_embedding_function = embedding_function
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elif self._embedding_function:
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_embedding_function = self._embedding_function.embed_query
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else:
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_embedding_function = None
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if embedding is None:
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if _embedding_function is None:
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raise ValueError(
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"Either `embedding` or `embedding_function` needs to be"
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" specified."
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)
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embedding = _embedding_function(query) if query else None
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if isinstance(embedding, list):
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embedding = np.array(embedding, dtype=np.float32)
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if len(embedding.shape) > 1:
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embedding = embedding[0]
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result = self.vectorstore.search(
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embedding=embedding,
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k=fetch_k if use_maximal_marginal_relevance else k,
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distance_metric=distance_metric,
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filter=filter,
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exec_option=exec_option,
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return_tensors=["embedding", "metadata", "text"],
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)
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scores = result["score"]
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embeddings = result["embedding"]
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metadatas = result["metadata"]
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texts = result["text"]
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if use_maximal_marginal_relevance:
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lambda_mult = kwargs.get("lambda_mult", 0.5)
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indices = maximal_marginal_relevance( # type: ignore
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embedding, # type: ignore
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embeddings,
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k=min(k, len(texts)),
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lambda_mult=lambda_mult,
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)
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scores = [scores[i] for i in indices]
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texts = [texts[i] for i in indices]
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metadatas = [metadatas[i] for i in indices]
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docs = [
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Document(
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page_content=text,
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metadata=metadata,
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)
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for text, metadata in zip(texts, metadatas)
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]
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if return_score:
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return [(doc, score) for doc, score in zip(docs, scores)]
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return docs
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def similarity_search(
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self,
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query: str,
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k: int = 4,
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**kwargs: Any,
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) -> List[Document]:
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"""
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Return docs most similar to query.
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Examples:
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>>> # Search using an embedding
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>>> data = vector_store.similarity_search(
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... query=<your_query>,
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... k=<num_items>,
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... exec_option=<preferred_exec_option>,
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... )
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>>> # Run tql search:
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>>> data = vector_store.tql_search(
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... tql_query="SELECT * WHERE id == <id>",
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... exec_option="compute_engine",
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... )
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Args:
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k (int): Number of Documents to return. Defaults to 4.
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query (str): Text to look up similar documents.
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**kwargs: Additional keyword arguments include:
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embedding (Callable): Embedding function to use. Defaults to None.
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distance_metric (str): 'L2' for Euclidean, 'L1' for Nuclear, 'max'
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for L-infinity, 'cos' for cosine, 'dot' for dot product.
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Defaults to 'L2'.
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filter (Union[Dict, Callable], optional): Additional filter
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before embedding search.
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- Dict: Key-value search on tensors of htype json,
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(sample must satisfy all key-value filters)
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Dict = {"tensor_1": {"key": value}, "tensor_2": {"key": value}}
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- Function: Compatible with `deeplake.filter`.
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Defaults to None.
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exec_option (str): Supports 3 ways to perform searching.
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'python', 'compute_engine', or 'tensor_db'. Defaults to 'python'.
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- 'python': Pure-python implementation for the client.
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WARNING: not recommended for big datasets.
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- 'compute_engine': C++ implementation of the Compute Engine for
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the client. Not for in-memory or local datasets.
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- 'tensor_db': Managed Tensor Database for storage and query.
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Only for data in Deep Lake Managed Database.
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Use `runtime = {"db_engine": True}` during dataset creation.
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Returns:
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List[Document]: List of Documents most similar to the query vector.
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"""
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return self._search(
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query=query,
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k=k,
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use_maximal_marginal_relevance=False,
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return_score=False,
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**kwargs,
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)
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def similarity_search_by_vector(
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self,
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embedding: Union[List[float], np.ndarray],
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k: int = 4,
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**kwargs: Any,
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) -> List[Document]:
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"""
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Return docs most similar to embedding vector.
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Examples:
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>>> # Search using an embedding
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>>> data = vector_store.similarity_search_by_vector(
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... embedding=<your_embedding>,
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... k=<num_items_to_return>,
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... exec_option=<preferred_exec_option>,
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... )
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Args:
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embedding (Union[List[float], np.ndarray]):
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Embedding to find similar docs.
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k (int): Number of Documents to return. Defaults to 4.
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**kwargs: Additional keyword arguments including:
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filter (Union[Dict, Callable], optional):
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Additional filter before embedding search.
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- ``Dict`` - Key-value search on tensors of htype json. True
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if all key-value filters are satisfied.
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Dict = {"tensor_name_1": {"key": value},
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"tensor_name_2": {"key": value}}
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- ``Function`` - Any function compatible with
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`deeplake.filter`.
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Defaults to None.
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exec_option (str): Options for search execution include
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"python", "compute_engine", or "tensor_db". Defaults to
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"python".
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- "python" - Pure-python implementation running on the client.
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Can be used for data stored anywhere. WARNING: using this
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option with big datasets is discouraged due to potential
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memory issues.
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- "compute_engine" - Performant C++ implementation of the Deep
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Lake Compute Engine. Runs on the client and can be used for
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|
any data stored in or connected to Deep Lake. It cannot be
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used with in-memory or local datasets.
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|
- "tensor_db" - Performant, fully-hosted Managed Tensor Database.
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Responsible for storage and query execution. Only available
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for data stored in the Deep Lake Managed Database.
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To store datasets in this database, specify
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`runtime = {"db_engine": True}` during dataset creation.
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distance_metric (str): `L2` for Euclidean, `L1` for Nuclear,
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`max` for L-infinity distance, `cos` for cosine similarity,
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'dot' for dot product. Defaults to `L2`.
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Returns:
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List[Document]: List of Documents most similar to the query vector.
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"""
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return self._search(
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embedding=embedding,
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k=k,
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use_maximal_marginal_relevance=False,
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return_score=False,
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**kwargs,
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)
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def similarity_search_with_score(
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self,
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query: str,
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k: int = 4,
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**kwargs: Any,
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) -> List[Tuple[Document, float]]:
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"""
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Run similarity search with Deep Lake with distance returned.
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Examples:
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>>> data = vector_store.similarity_search_with_score(
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... query=<your_query>,
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... embedding=<your_embedding_function>
|
|
... k=<number_of_items_to_return>,
|
|
... exec_option=<preferred_exec_option>,
|
|
... )
|
|
|
|
Args:
|
|
query (str): Query text to search for.
|
|
k (int): Number of results to return. Defaults to 4.
|
|
**kwargs: Additional keyword arguments. Some of these arguments are:
|
|
distance_metric: `L2` for Euclidean, `L1` for Nuclear, `max` L-infinity
|
|
distance, `cos` for cosine similarity, 'dot' for dot product.
|
|
Defaults to `L2`.
|
|
filter (Optional[Dict[str, str]]): Filter by metadata. Defaults to None.
|
|
embedding_function (Callable): Embedding function to use. Defaults
|
|
to None.
|
|
exec_option (str): DeepLakeVectorStore supports 3 ways to perform
|
|
searching. It could be either "python", "compute_engine" or
|
|
"tensor_db". Defaults to "python".
|
|
- "python" - Pure-python implementation running on the client.
|
|
Can be used for data stored anywhere. WARNING: using this
|
|
option with big datasets is discouraged due to potential
|
|
memory issues.
|
|
- "compute_engine" - Performant C++ implementation of the Deep
|
|
Lake Compute Engine. Runs on the client and can be used for
|
|
any data stored in or connected to Deep Lake. It cannot be used
|
|
with in-memory or local datasets.
|
|
- "tensor_db" - Performant, fully-hosted Managed Tensor Database.
|
|
Responsible for storage and query execution. Only available for
|
|
data stored in the Deep Lake Managed Database. To store datasets
|
|
in this database, specify `runtime = {"db_engine": True}`
|
|
during dataset creation.
|
|
|
|
Returns:
|
|
List[Tuple[Document, float]]: List of documents most similar to the query
|
|
text with distance in float."""
|
|
|
|
return self._search(
|
|
query=query,
|
|
k=k,
|
|
return_score=True,
|
|
**kwargs,
|
|
)
|
|
|
|
def max_marginal_relevance_search_by_vector(
|
|
self,
|
|
embedding: List[float],
|
|
k: int = 4,
|
|
fetch_k: int = 20,
|
|
lambda_mult: float = 0.5,
|
|
exec_option: Optional[str] = None,
|
|
**kwargs: Any,
|
|
) -> List[Document]:
|
|
"""
|
|
Return docs selected using the maximal marginal relevance. Maximal marginal
|
|
relevance optimizes for similarity to query AND diversity among selected docs.
|
|
|
|
Examples:
|
|
>>> data = vector_store.max_marginal_relevance_search_by_vector(
|
|
... embedding=<your_embedding>,
|
|
... fetch_k=<elements_to_fetch_before_mmr_search>,
|
|
... k=<number_of_items_to_return>,
|
|
... exec_option=<preferred_exec_option>,
|
|
... )
|
|
|
|
Args:
|
|
embedding: Embedding to look up documents similar to.
|
|
k: Number of Documents to return. Defaults to 4.
|
|
fetch_k: Number of Documents to fetch for MMR algorithm.
|
|
lambda_mult: Number between 0 and 1 determining the degree of diversity.
|
|
0 corresponds to max diversity and 1 to min diversity. Defaults to 0.5.
|
|
exec_option (str): DeepLakeVectorStore supports 3 ways for searching.
|
|
Could be "python", "compute_engine" or "tensor_db". Defaults to
|
|
"python".
|
|
- "python" - Pure-python implementation running on the client.
|
|
Can be used for data stored anywhere. WARNING: using this
|
|
option with big datasets is discouraged due to potential
|
|
memory issues.
|
|
- "compute_engine" - Performant C++ implementation of the Deep
|
|
Lake Compute Engine. Runs on the client and can be used for
|
|
any data stored in or connected to Deep Lake. It cannot be used
|
|
with in-memory or local datasets.
|
|
- "tensor_db" - Performant, fully-hosted Managed Tensor Database.
|
|
Responsible for storage and query execution. Only available for
|
|
data stored in the Deep Lake Managed Database. To store datasets
|
|
in this database, specify `runtime = {"db_engine": True}`
|
|
during dataset creation.
|
|
**kwargs: Additional keyword arguments.
|
|
|
|
Returns:
|
|
List[Documents] - A list of documents.
|
|
"""
|
|
|
|
return self._search(
|
|
embedding=embedding,
|
|
k=k,
|
|
fetch_k=fetch_k,
|
|
use_maximal_marginal_relevance=True,
|
|
lambda_mult=lambda_mult,
|
|
exec_option=exec_option,
|
|
**kwargs,
|
|
)
|
|
|
|
def max_marginal_relevance_search(
|
|
self,
|
|
query: str,
|
|
k: int = 4,
|
|
fetch_k: int = 20,
|
|
lambda_mult: float = 0.5,
|
|
exec_option: Optional[str] = None,
|
|
**kwargs: Any,
|
|
) -> List[Document]:
|
|
"""Return docs selected using maximal marginal relevance.
|
|
|
|
Maximal marginal relevance optimizes for similarity to query AND diversity
|
|
among selected documents.
|
|
|
|
Examples:
|
|
>>> # Search using an embedding
|
|
>>> data = vector_store.max_marginal_relevance_search(
|
|
... query = <query_to_search>,
|
|
... embedding_function = <embedding_function_for_query>,
|
|
... k = <number_of_items_to_return>,
|
|
... exec_option = <preferred_exec_option>,
|
|
... )
|
|
|
|
Args:
|
|
query: Text to look up documents similar to.
|
|
k: Number of Documents to return. Defaults to 4.
|
|
fetch_k: Number of Documents for MMR algorithm.
|
|
lambda_mult: Value between 0 and 1. 0 corresponds
|
|
to maximum diversity and 1 to minimum.
|
|
Defaults to 0.5.
|
|
exec_option (str): Supports 3 ways to perform searching.
|
|
- "python" - Pure-python implementation running on the client.
|
|
Can be used for data stored anywhere. WARNING: using this
|
|
option with big datasets is discouraged due to potential
|
|
memory issues.
|
|
- "compute_engine" - Performant C++ implementation of the Deep
|
|
Lake Compute Engine. Runs on the client and can be used for
|
|
any data stored in or connected to Deep Lake. It cannot be
|
|
used with in-memory or local datasets.
|
|
- "tensor_db" - Performant, fully-hosted Managed Tensor Database.
|
|
Responsible for storage and query execution. Only available
|
|
for data stored in the Deep Lake Managed Database. To store
|
|
datasets in this database, specify
|
|
`runtime = {"db_engine": True}` during dataset creation.
|
|
**kwargs: Additional keyword arguments
|
|
|
|
Returns:
|
|
List of Documents selected by maximal marginal relevance.
|
|
|
|
Raises:
|
|
ValueError: when MRR search is on but embedding function is
|
|
not specified.
|
|
"""
|
|
embedding_function = kwargs.get("embedding") or self._embedding_function
|
|
if embedding_function is None:
|
|
raise ValueError(
|
|
"For MMR search, you must specify an embedding function on"
|
|
" `creation` or during add call."
|
|
)
|
|
return self._search(
|
|
query=query,
|
|
k=k,
|
|
fetch_k=fetch_k,
|
|
use_maximal_marginal_relevance=True,
|
|
lambda_mult=lambda_mult,
|
|
exec_option=exec_option,
|
|
embedding_function=embedding_function, # type: ignore
|
|
**kwargs,
|
|
)
|
|
|
|
@classmethod
|
|
def from_texts(
|
|
cls,
|
|
texts: List[str],
|
|
embedding: Optional[Embeddings] = None,
|
|
metadatas: Optional[List[dict]] = None,
|
|
ids: Optional[List[str]] = None,
|
|
dataset_path: str = _LANGCHAIN_DEFAULT_DEEPLAKE_PATH,
|
|
**kwargs: Any,
|
|
) -> DeepLake:
|
|
"""Create a Deep Lake dataset from a raw documents.
|
|
|
|
If a dataset_path is specified, the dataset will be persisted in that location,
|
|
otherwise by default at `./deeplake`
|
|
|
|
Examples:
|
|
>>> # Search using an embedding
|
|
>>> vector_store = DeepLake.from_texts(
|
|
... texts = <the_texts_that_you_want_to_embed>,
|
|
... embedding_function = <embedding_function_for_query>,
|
|
... k = <number_of_items_to_return>,
|
|
... exec_option = <preferred_exec_option>,
|
|
... )
|
|
|
|
Args:
|
|
dataset_path (str): - The full path to the dataset. Can be:
|
|
- Deep Lake cloud path of the form ``hub://username/dataset_name``.
|
|
To write to Deep Lake cloud datasets,
|
|
ensure that you are logged in to Deep Lake
|
|
(use 'activeloop login' from command line)
|
|
- AWS S3 path of the form ``s3://bucketname/path/to/dataset``.
|
|
Credentials are required in either the environment
|
|
- Google Cloud Storage path of the form
|
|
``gcs://bucketname/path/to/dataset`` Credentials are required
|
|
in either the environment
|
|
- Local file system path of the form ``./path/to/dataset`` or
|
|
``~/path/to/dataset`` or ``path/to/dataset``.
|
|
- In-memory path of the form ``mem://path/to/dataset`` which doesn't
|
|
save the dataset, but keeps it in memory instead.
|
|
Should be used only for testing as it does not persist.
|
|
texts (List[Document]): List of documents to add.
|
|
embedding (Optional[Embeddings]): Embedding function. Defaults to None.
|
|
Note, in other places, it is called embedding_function.
|
|
metadatas (Optional[List[dict]]): List of metadatas. Defaults to None.
|
|
ids (Optional[List[str]]): List of document IDs. Defaults to None.
|
|
**kwargs: Additional keyword arguments.
|
|
|
|
Returns:
|
|
DeepLake: Deep Lake dataset.
|
|
|
|
Raises:
|
|
ValueError: If 'embedding' is provided in kwargs. This is deprecated,
|
|
please use `embedding_function` instead.
|
|
"""
|
|
if kwargs.get("embedding"):
|
|
raise ValueError(
|
|
"using embedding as embedidng_functions is deprecated. "
|
|
"Please use `embedding_function` instead."
|
|
)
|
|
|
|
deeplake_dataset = cls(
|
|
dataset_path=dataset_path, embedding_function=embedding, **kwargs
|
|
)
|
|
deeplake_dataset.add_texts(
|
|
texts=texts,
|
|
metadatas=metadatas,
|
|
ids=ids,
|
|
embedding_function=embedding.embed_documents, # type: ignore
|
|
)
|
|
return deeplake_dataset
|
|
|
|
def delete(self, ids: Optional[List[str]] = None, **kwargs: Any) -> bool:
|
|
"""Delete the entities in the dataset.
|
|
|
|
Args:
|
|
ids (Optional[List[str]], optional): The document_ids to delete.
|
|
Defaults to None.
|
|
**kwargs: Other keyword arguments that subclasses might use.
|
|
- filter (Optional[Dict[str, str]], optional): The filter to delete by.
|
|
- delete_all (Optional[bool], optional): Whether to drop the dataset.
|
|
|
|
Returns:
|
|
bool: Whether the delete operation was successful.
|
|
"""
|
|
filter = kwargs.get("filter")
|
|
delete_all = kwargs.get("delete_all")
|
|
|
|
self.vectorstore.delete(ids=ids, filter=filter, delete_all=delete_all)
|
|
|
|
return True
|
|
|
|
@classmethod
|
|
def force_delete_by_path(cls, path: str) -> None:
|
|
"""Force delete dataset by path.
|
|
|
|
Args:
|
|
path (str): path of the dataset to delete.
|
|
|
|
Raises:
|
|
ValueError: if deeplake is not installed.
|
|
"""
|
|
|
|
try:
|
|
import deeplake
|
|
except ImportError:
|
|
raise ValueError(
|
|
"Could not import deeplake python package. "
|
|
"Please install it with `pip install deeplake`."
|
|
)
|
|
deeplake.delete(path, large_ok=True, force=True)
|
|
|
|
def delete_dataset(self) -> None:
|
|
"""Delete the collection."""
|
|
self.delete(delete_all=True)
|