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National Health Services(UK)

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Question Answering ChatBot For NHS

Built a Document question answering chatbot form National Health Services London. NHS London is the controller of all the NHS agencies across Europe. The chatbot is used to fetch information from different documents (PDF), Website or even from database.

Our Implementation Process

Extract Data/Content

The process starts by extracting text content from documents. This involves parsing the documents to convert them into a text format that can be processed further.

Chunking

The extracted text is then divided into smaller, manageable pieces or "chunks" to facilitate more accurate embedding and search.

Embedding

Each chunk of text is converted into embedding vectors. These vectors represent the semantic meaning of the text, allowing for more effective search and matching.

User Query

Users interact with the chatbot by inputting their questions. The system captures these questions and processes them.

Query Embedding

The user’s question is converted into an embedding vector using LangChain. This step ensures that the system understands the semantic context of the query.

Vector Matching

The query embedding is compared against the indexed vectors stored in Pinecone. This semantic search identifies the most relevant chunks of text that match the user’s query

Ranking and Relevance

The matched results are ranked based on relevance. The LangChain agent facilitates this ranking process by evaluating the context and significance of each result.

GenAI and Data API Integration

For generating the final response, the LangChain agent integrates with Generative AI models and external Data APIs. This integration ensures that the response is not only accurate but also enriched with the latest information and context.

Vector Indexing in Pinecone

The embedding vectors are indexed and stored in Pinecone, a vector database. Pinecone enables fast and scalable similarity searches, which is crucial for real-time information retrieval.

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