Sarah D’s portfolio
I’m a senior data scientist focused on RAG, machine learning, and the engineering needed to run them reliably.
AI Security Research Agent
The agent checks public DNS, domain registration, and certificate data. It uses an LLM to summarize the evidence and explain its security verdict.
RAG Portfolio Agent
It uses retrieval-augmented generation (RAG) to find relevant facts in my résumé and portfolio, then an LLM turns those sources into a clear answer.
03 / Articles
A clear introduction to Levenshtein distance, homograph normalization, and how similarity scoring helps identify deceptive look-alike domains.
Read the full article ↗How domain similarity, structural signals, character patterns, and continuously refreshed threat intelligence strengthen protective DNS.
Read the full article ↗Senior Data Scientist working across applied AI, machine learning, enterprise knowledge, and cybersecurity.
RAG-based LLM agent