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How to build an auto merge vector storage just for retrieval without LLM service context!

How to build an auto merge vector storage just for retrieval without LLM service context!
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Please stand by @Luke Skywalker as I search the knowledge base. I normally take about 20 seconds or so. :wave:
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Based on the information provided in the extracts, it seems that the LlamaIndex library typically uses both a service context and a storage context when creating a VectorStoreIndex. The service context often includes a language model (LLM), such as OpenAI's GPT-3.5-turbo or GPT-4, and the storage context includes the vector store.

However, the extracts do not provide specific instructions or code examples for building an auto merge vector storage just for retrieval without an LLM service context. It's possible that this might not be supported by the LlamaIndex library, as the LLM seems to be an integral part of the system.

Here is a typical example of how a VectorStoreIndex is created with both a service context and a storage context:

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from llama_index import VectorStoreIndex, StorageContext, ServiceContext
from llama_index.llms import OpenAI
from llama_index.vector_stores import PineconeVectorStore

# Define the LLM
llm = OpenAI(temperature=0, model="gpt-3.5-turbo")

# Create the service context with the LLM
service_context = ServiceContext.from_defaults(llm=llm, chunk_size_limit=64)

# Create the vector store
vector_store = PineconeVectorStore(pinecone_index=pinecone_index, namespace="test")

# Create the storage context with the vector store
storage_context = StorageContext.from_defaults(vector_store=vector_store)

# Create the VectorStoreIndex with the service context and storage context
index = VectorStoreIndex(nodes, service_context=service_context, storage_context=storage_context)

(Source: GitHub ())
For more specific guidance on how to build an auto merge vector storage just for retrieval without an LLM service context, you may want to refer to the official LlamaIndex documentation or reach out to the LlamaIndex community or support.
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@Luke Skywalker what do you mean by an auto merge vector storage
@kapa.ai how to get the score value of NodeWithScore object?
Let me check the knowledge base for you. One moment! :books:
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The NodeWithScore object in LlamaIndex has a score attribute that you can use to get the score value. Here is an example of how you can access it:

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node_with_score = NodeWithScore(node=Node(text="text"), score=0.7)
print(node_with_score.score)


This will output 0.7, which is the score of the NodeWithScore object.

Additionally, there is a method get_score() that can be used to get the score value. Here is how you can use it:

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score = node_with_score.get_score()


This will return the score of the NodeWithScore object.

Please note that the get_score() method has an optional parameter raise_error. If raise_error is set to True and the score is None, it will raise an error. By default, raise_error is set to False.

For more information, you can refer to the LlamaIndex documentation ().
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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@kapa.ai how to set a stop token using OpenAILike?
Let me check the knowledge base for you. One moment! :books:
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Based on the provided extracts, there is no direct information about setting a stop token using the OpenAILike class in LlamaIndex. The OpenAILike class has several parameters such as model, temperature, max_tokens, additional_kwargs, max_retries, timeout, default_headers, reuse_client, api_key, api_base, api_version, context_window, is_chat_model, is_function_calling_model, and tokenizer. However, none of these parameters seem to be related to setting a stop token.

In general, a stop token is a specific token or sequence of tokens that indicates the end of a generated text sequence. In some language model APIs, you can specify stop tokens to control the output of the model.

For more specific guidance on how to set a stop token using OpenAILike, you may want to refer to the official LlamaIndex documentation () or reach out to the LlamaIndex community or support.
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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@kapa.ai and OpenAI component?
Let me check the knowledge base for you. One moment! :books:
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In the OpenAI API, you can set stop sequences using the stop_sequences parameter. This parameter accepts a list of strings that the model will treat as end tokens for the generated text. Here's an example:

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import openai

openai.api_key = 'your-api-key'

response = openai.Completion.create(
  engine="text-davinci-002",
  prompt="Once upon a time",
  stop_sequences=[".", "?", "!"]
)


In this example, the model will stop generating more text when it encounters a period (.), question mark (?), or exclamation mark (!).

Please note that you need to replace 'your-api-key' with your actual OpenAI API key.

For more information, you can refer to the OpenAI API documentation ().
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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@kapa.ai does llama_index integrate with vllm?
Let me check the knowledge base for you. One moment! :books:
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Based on the provided extracts, there is no mention of an integration between LlamaIndex and vLLM. LlamaIndex is designed to work with large language models (LLMs) and provides various functionalities for integrating these models into its system. However, the specific integration with vLLM is not mentioned in the provided extracts.

For more specific information about whether LlamaIndex integrates with vLLM, you may want to refer to the official LlamaIndex documentation () or reach out to the LlamaIndex community or support.
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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