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# π AI/ML Projects Portfolio β 2026 & Beyond
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> A skill reference file for Claude Code. Each project is production-grade, resume-worthy, and aligned with the hottest AI/ML job market trends of 2026+.
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---
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## How to Use This File with Claude Code
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Drop this file into your project directory and reference it in Claude Code:
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```
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Claude Code, read Projects.md and help me implement Project [N]: [Title]
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```
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Claude Code will use the step-by-step implementation guide, tech stack, and constraints defined here to scaffold, build, and deploy each project.
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---
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## π Projects Index
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| # | Project Title | Domain | Difficulty | Resume Weight |
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|---|---|---|---|---|
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| 1 | DocuMind β Enterprise RAG Chatbot | RAG + LLMs + Vector DB | β‘ Medium | β
β
β
β
β
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---
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---
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## Project 1 β DocuMind: Enterprise RAG Chatbot
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### π Description
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DocuMind is a production-ready Retrieval-Augmented Generation (RAG) chatbot that answers natural language questions grounded in private enterprise documents (PDFs, DOCX, CSVs). Unlike generic chatbots, it never hallucinates β every answer is backed by retrieved source chunks with citations. Deployed as a FastAPI backend + Streamlit frontend on a cloud VM or Hugging Face Spaces.
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### π οΈ Step-by-Step Implementation
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**Phase 1 β Setup & Ingestion Pipeline**
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1. Set up project structure: `backend/`, `frontend/`, `vectorstore/`, `scripts/`
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2. Create a document ingestion pipeline using `LangChain DocumentLoaders` to parse PDFs, DOCX, and TXT files
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3. Implement chunking strategy β use `RecursiveCharacterTextSplitter` (chunk_size=512, overlap=64) for context preservation
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4. Generate embeddings using `sentence-transformers/all-MiniLM-L6-v2` (free, fast) or OpenAI `text-embedding-3-small`
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5. Store embeddings in ChromaDB (local dev) or Pinecone (production) with document metadata (filename, page, chunk_id)
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**Phase 2 β Retrieval & Generation**
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6. Build a retrieval chain: user query β embed query β cosine similarity search β top-k chunks (k=5) β pass to LLM
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7. Implement `ReRanker` using `cross-encoder/ms-marco-MiniLM-L-6-v2` to improve chunk relevance ordering
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8. Craft a strict RAG prompt template:
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```
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You are a factual assistant. Answer ONLY using the context below.
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If the answer isn't in the context, say "I don't know."
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Context: {context}
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Question: {question}
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```
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9. Use `llama-3-8b-instruct` via Groq API (free tier) or `claude-haiku` as the LLM for generation
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**Phase 3 β API & Frontend**
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10. Build FastAPI endpoints: `POST /ingest`, `POST /query`, `GET /sources`
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11. Add conversation memory using `ConversationBufferWindowMemory` (last 5 turns)
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12. Build Streamlit frontend with file uploader, chat interface, and source citation panel
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13. Add streaming response support using `StreamingResponse` in FastAPI
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**Phase 4 β Deployment & Production**
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14. Containerize with Docker (`Dockerfile` + `docker-compose.yml` for API + VectorDB)
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15. Add logging, error handling, and rate limiting (slowapi)
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16. Deploy to Hugging Face Spaces (Streamlit) or Railway/Render (FastAPI)
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17. Write a Model Card documenting supported file types, known limitations, and ethical considerations
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### π Real-World Coverage
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**Why?** 80% of enterprise knowledge lives in unstructured documents. Every company with internal wikis, legal contracts, HR handbooks, or research reports needs this.
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**How?** Legal firms (contract Q&A), HR departments (policy chatbots), hospitals (clinical guideline assistants), and SaaS companies (internal knowledge bases) all deploy RAG systems at scale.
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### π§° Tech Stack
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```
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Backend: Python 3.11, FastAPI, LangChain, LangGraph
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LLM: LLaMA 3 via Groq / Claude Haiku via Anthropic API
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Embeddings: sentence-transformers, OpenAI Embeddings
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Vector DB: ChromaDB (dev), Pinecone (prod)
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ReRanking: cross-encoder (HuggingFace)
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Frontend: Streamlit or Gradio
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Deployment: Docker, Hugging Face Spaces, Render
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Monitoring: LangSmith (tracing), Python logging
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```
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### π― Skills Covered
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- RAG pipeline design (chunking, embedding, retrieval, reranking)
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- Vector database operations (CRUD, similarity search, metadata filtering)
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- LLM prompt engineering for factual, grounded responses
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- FastAPI REST API development
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- Streamlit UI development
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- Docker containerization
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- Production deployment with monitoring
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### π Resume Weight β
β
β
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β
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This single project covers 4 of the top 10 hottest keywords: RAG, Vector Databases, Prompt Engineering, and LLM integration. RAG demand rose 340% since 2023. This project alone can anchor an entire interview.
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### ποΈ Difficulty β‘ Medium
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The building blocks (LangChain, Chroma, FastAPI) are well-documented. Challenge lies in chunk quality, retrieval tuning, and production hardening.
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### π·οΈ ATS Keywords
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`RAG`, `Retrieval-Augmented Generation`, `LangChain`, `Vector Database`, `ChromaDB`, `Pinecone`, `Semantic Search`, `Embeddings`, `FastAPI`, `LLM Integration`, `Prompt Engineering`, `Document Chunking`, `Sentence Transformers`, `Hugging Face`, `Python`, `Docker`, `Streamlit`, `Knowledge Base`, `Enterprise AI`, `NLP`
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---
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## π Using This File in Claude Code
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```bash
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# To start a project, say in Claude Code:
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"Read Project.md and help me implement Project 1: DocuMind.
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Start with Phase 1 and scaffold the full project structure."
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# To continue:
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"Continue with Phase 2 of Project 1 from Project.md"
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# To adapt:
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"Based on Project 3 in Project.md, modify the approach for a
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legal document domain instead of medical, using my local GPU."
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```
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