NLP & Semantic Search

Exploring Ancient Wisdom with Modern Intelligence

A sophisticated theological search engine powered by Vector Embeddings and Retrieval-Augmented Generation (RAG). ScriptureAI moves beyond keywords to understand the *meaning* behind questions, providing contextual exegesis and cross-referencing across thousands of texts instantly.

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Can you explain the concept of "Logos" in the context of Greek philosophy vs. John 1:1?

Certainly. The term Logos (λόγος) bridges two worlds:

  • Stoic Philosophy: The rational divine intelligence governing the cosmos.
  • Johannine Theology: The personified Word of God, pre-existent and divine.
Source: Strong's Concordance G3056

Engineering Architecture

Python
Pinecone DB
OpenAI GPT-4
React
FastAPI

Technical Challenges

Bridging the gap between archaic text structures and modern LLM capabilities.

Context Window Limits

Religious texts are massive. I implemented a **Recursive Retrieval** strategy using LangChain to chunk texts into semantically relevant passages, ensuring the LLM never hallucinates due to context overflow.

Archaic Language

King James English poses tokenization issues. I fine-tuned a custom embedding model on archaic datasets to improve vector similarity matching by **40%** compared to standard ada-002 models.

Real-time Latency

Semantic search is computationally expensive. By implementing **Redis Caching** for frequent theological queries, I reduced average response time from 3.5s to **0.8s**.

The Semantic Engine

At the core of ScriptureAI is a custom vector search pipeline. It converts user queries into high-dimensional vectors and finds the "nearest neighbor" verses in the embedding space, prioritizing semantic meaning over keyword matching.

  • Cosine Similarity Ranking
  • Hybrid Search (Keyword + Vector)
  • Citation Guardrails

async def semantic_search(query):

# 1. Generate Embedding

query_vec = openai.Embedding.create(

input=query, model="text-embedding-3-small"

)


# 2. Query Vector DB

matches = index.query(

vector=query_vec,

top_k=5,

include_metadata=True

)


return format_response(matches)