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Scraping Prepper-Ressources into AI-Text-Mining Pipeline

Scraped ~10,000 catastrophe preparedness (Prepper) websites, enriched data via AI/LLM pipelines, and stored in database for quantitative/qualitative analysis.

Created
Read Time
8 min
Type
Research & Data Science Project
Scraping Prepper-Ressources into AI-Text-Mining Pipeline - Image 1

Project Overview

Project Overview

The PREP project is a sophisticated research platform that analyzes German-language crisis preparedness content at scale. I built a comprehensive system that scraped ~10,000 websites and applied advanced AI analysis to understand how communities prepare for emergencies.

Technical Architecture

Data Collection & Processing

  • Automated web scraping pipeline with ethical compliance (robots.txt, rate limiting)
  • AI-powered content analysis using GPT-4 for intelligent categorization
  • Topic modeling with Python NLP libraries to discover emerging themes
  • Structured data storage in MongoDB with advanced querying capabilities

Analysis & Visualization

  • 13 primary content categories with 60+ detailed subcategories
  • Interactive 3D network graphs showing content relationships (WebGL/D3.js)
  • Real-time dashboard with statistics and filtering options
  • Export functionality for academic research

Key Technologies

  • Frontend: React, TypeScript, D3.js for 3D visualizations, Tailwind CSS
  • Backend: Node.js, Express, MongoDB with optimized indexing
  • AI Pipeline: Python, OpenAI GPT-4, spaCy, NLTK, Gensim for topic modeling
  • Infrastructure: Docker containers, automated testing, comprehensive logging

Research Impact

This platform provides researchers with unprecedented insights into crisis communication patterns, information quality assessment, and regional differences in preparedness messaging across German-speaking communities. The tool has been instrumental in understanding how different groups approach emergency preparedness.

Tech Stack

React
TypeScript
Vite
Node.js
MongoDB
Python
OpenAI GPT-4
NLTK
Selenium
BeautifulSoup
Firecrawl
D3.js
Tailwind CSS
Recharts
Joi Validation
Jest

Security Features

Robots.txt Compliance

Automatic robots.txt parsing and crawl delay enforcement with caching

Rate Limiting & Throttling

Bottleneck-based API rate limiting (500 calls/min) and concurrent request control

CORS Protection

Configured CORS with origin validation and allowed methods restriction

Input Validation

Joi schema validation for all API requests with error handling

Text Sanitization

HTML/Markdown sanitization and XSS prevention in content processing

Error Handling & Logging

Comprehensive error logging and graceful failure recovery mechanisms