Using only one specific document as source in llm - chainlit

3 min read 04-10-2024
Using only one specific document as source in llm - chainlit


In the realm of natural language processing (NLP) and language learning models (LLMs), there are instances when you may want to ensure that your model references only one specific document as a source of information. This can be particularly useful in applications that require a high degree of accuracy from a single source, such as legal documents, academic papers, or user manuals. In this article, we will explore how to utilize Chainlit, a powerful tool for creating interactive applications, to achieve this goal.

Understanding the Problem

The challenge here lies in the need for precision and relevance when querying an LLM. Many users might inadvertently pull in irrelevant or extraneous information from multiple sources when trying to find answers based on a specific document. As such, it's crucial to structure your LLM queries in a way that confines the source material strictly to the document of interest.

The Scenario

Imagine you have an intricate user manual for a software application, and you want the LLM to answer questions based solely on this manual. The goal is to configure Chainlit to ensure that it processes input queries referencing only the provided document without incorporating data from other sources.

Original Code Example

To achieve this with Chainlit, we can start with a simple configuration that specifies the document to be referenced. Here's an example of a basic setup:

import chainlit as cl
from langchain.document_loaders import TextLoader
from langchain.embeddings import OpenAIEmbeddings
from langchain.vectorstores import FAISS
from langchain.chains import RetrievalQA

# Load your specific document
loader = TextLoader('path/to/your/document.txt')
documents = loader.load()

# Create an embedding for the document
embeddings = OpenAIEmbeddings()
vector_store = FAISS.from_documents(documents, embeddings)

# Create a retrieval QA chain
qa_chain = RetrievalQA.from_chain_type(
    llm="OpenAI",
    chain_type="stuff",
    retriever=vector_store.as_retriever(search_kwargs={"k": 1})
)

@cl.on_message
def respond(message: str):
    response = qa_chain.run(message)
    cl.Message(content=response).send()

Unique Insights

The provided code snippet outlines how to load a specific document, create embeddings, and implement a retrieval QA chain that allows the LLM to respond accurately based on that document alone.

Key Considerations:

  1. Document Loaders: Ensure that you are utilizing an appropriate document loader that can handle various formats, such as TXT, PDFs, or even HTML, based on your requirements.

  2. Embeddings: The choice of embeddings is critical. OpenAI embeddings work well for semantic understanding. However, depending on your document's complexity and your application's needs, you might want to explore different embedding strategies.

  3. Retrieval Parameters: In the search_kwargs, we set k=1, which means the model will consider only the most relevant passage from the document in response to the query. This configuration is vital for maintaining focus on a single source.

  4. Message Handling: The @cl.on_message decorator listens for incoming messages, enabling real-time interaction with the user. This makes your application interactive and user-friendly.

Conclusion

Using Chainlit to limit LLM responses to a single document can significantly enhance the precision of the information provided by the model. By setting up a retrieval-based question-answering system, you can ensure that all answers stem from your designated source. This is particularly beneficial for tasks that require high fidelity to a single document's content.

Additional Resources

By following the strategies outlined in this article, you can effectively employ Chainlit to build a focused LLM application that serves answers from a specific document, ensuring high accuracy and relevance in your interactions.