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Niox1337/README.md

Hey, I am Zhixiang Feng πŸ‘‹

Machine Learning Researcher and Software Engineer who is a little obsessed with retrieval systems.
I train models to surface the right evidence, then build software that makes their behaviour easy to inspect.

πŸ“ London, United Kingdom Β β€’Β  πŸ”¬ Neural Reranking, RAG, and Information Retrieval Β β€’Β  πŸ› οΈ Web, mobile, desktop, and browser tooling

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πŸ”­ What I am up to right now

  • Machine Learning Researcher at Revax, sharpening the neural reranker behind a UK tax RAG workflow
  • Hunting down hard tax queries and reranker failure cases, then turning what I learn into real model changes
  • Finishing my MSc Applied Computational Science and Engineering at Imperial College London

My favourite question is not whether a system can produce an answer. It is whether the right evidence showed up before the answer was written.


🧠 Things I have built and researched

Project What it is about
πŸ¦… Hawk Page Indexer A published Chrome extension that indexes pages and ranks them with BM25F, built for an Amazon client team and recognised by Amazon Edinburgh engineers
🎯 Adversarial Attacks on Ranking Systems Research on how adversarial attacks bend neural and non neural retrieval pipelines
🧬 Synthetic Epilepsy Labels Generating more than 15,000 synthetic clinical cases from fewer than 100 real samples, with evaluation front and centre
🧾 UK Tax RAG Neural Reranker My current Revax work, where model quality meets product reliability

🧰 My toolbox

Python Rust C++ JavaScript Go PyTorch Hugging Face Tauri

Also fluent in RAG, neural reranking, recommender systems, parallel programming, CI workflows, and the occasional Haskell or Erlang detour.


πŸ† Wins and side quests

  • πŸ₯‡ First place at the Imperial College Fintech Hackathon with Project Wompoo, a product that shields seniors from phone call fraud, pitched over a weekend against more than 100 students from across the UK and Europe
  • πŸ›‘οΈ Built an autonomous tank agent at the Morgan Stanley GUTS Hackathon using a greedy strategy and a subsumption behaviour hierarchy
  • πŸŽ“ First Class Honours in Computing Science at Glasgow, with the Undergraduate Excellence Scholarship for all four years
  • πŸ§‘β€πŸ« Class Representative, Peer Assisted Learning Leader, mentor, and demonstrator, because helping newer engineers find their footing is the fun part

πŸ“Š GitHub by the numbers

GitHub stats Top languages

Streak stats


πŸ“« Find me

LinkedIn Email University GitHub

Ask me about neural reranking, retrieval evaluation, or why a confident wrong answer is worse than no answer at all.


github contribution grid snake animation

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  1. rainbow-tensor rainbow-tensor Public

    Colourful tensor operation visuals for NumPy style arrays, built for notebooks, docs, and teaching shape transformations.

    Python 94 8

  2. GU-GPA-Calculator GU-GPA-Calculator Public

    A gpa calculator for Glasgow university

    JavaScript 5

  3. HawkExtensionTeam/Hawk HawkExtensionTeam/Hawk Public

    Chrome extension combining to-do list, markdown notebook, and page indexer into one.

    JavaScript 1 1

  4. GU-GPA-Calculator-web GU-GPA-Calculator-web Public

    TypeScript 5