Raj Aryan

Advanced RAG Pipeline for Scientific Research

A deep dive into building robust, production-ready Retrieval-Augmented Generation systems for complex, multi-document analysis.

The Challenge

Unlocking Insights from Dense Scientific Literature

Standard RAG pipelines often fail when confronted with the unique structure of scientific PDFs—complex layouts, tables, multi-column text, and dense citations. This project demonstrates three distinct architectural approaches to overcome these challenges, showcasing a journey from a simple demo to a production-ready system.

Core Architectural Components

Building Blocks of an Advanced RAG System

Layout-Aware Parsing

Using tools like `pdfplumber` to respect document structure.

Hierarchical Chunking

Parent-child strategies to maintain semantic context.

Hybrid Retrieval

Combining lexical (BM25) and semantic (FAISS) search.

Cross-Encoder Reranking

Using advanced models to re-rank retrieved results for maximum relevance.

The Three Approaches

From Notebooks to Full-Stack Applications

1. The Research Approach

Google Colab Demonstration

A foundational notebook environment ideal for rapid prototyping and demonstrating core retrieval concepts. This approach focuses on the logic of parsing, chunking, and querying in an isolated, easy-to-follow format.

2. The Full-Stack Approach

Separated Frontend & Backend

This approach simulates a real-world production application with a distinct frontend (hosted on Netlify) and backend. It showcases the ability to build a user-facing product around a complex AI service.

Note: Click "Ingest Demo Papers" before querying.

3. The Rapid-Deployment Approach

Streamlit Application

Streamlit allows for incredibly fast development of interactive data applications. This demo highlights how a powerful RAG system can be quickly wrapped in a user-friendly interface for internal use or public-facing demos.

Note: Requires a Gemini API key to use.

Conclusion

Versatility in AI/ML Solutioning

This project demonstrates the ability to tackle a single, complex problem from multiple angles—from foundational research to full-stack productization. It highlights adaptability in choosing the right tools and architecture for the specific context, whether it's for a research paper, a customer-facing product, or a quick internal tool.