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@Gradient-PG @TheLion-ai

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pawcharz/README.md

Hi there 👋

  • I'm an ML Research Engineer at Animatica, working on generative models for 3D character animation.
  • My research is in mechanistic interpretability and AI safety, with side interests in reinforcement learning and multimodal AI.
  • I recently completed my B.Eng. in Data Engineering (thesis graded 5/5, graduated early 2026).

📄 Research

A Mechanistic Study of AI-Text Detection Neurons in Frozen BERT: Sparse Probing and Activation Patching on RAID Accepted to EMNLP 2026, main conference (Interpretability and Analysis of Models for NLP).

We identify small, stable sets of neurons (45-62 per generator) in frozen BERT that are causally sufficient for AI-text detection, using L1/L2 sparse probing and bidirectional activation patching on the RAID benchmark. Code: Gradient-PG/ai-text-detection-neurons

🔭 I'm currently working on

  • Motion Generation → Training pipelines and models for motion inbetweening from character rigs at Animatica.
  • Mechanistic Interpretability → Following up on the EMNLP work: how detection-relevant features transfer across generators and domains, and what the neurons actually encode.
  • TRACE (RL Explainability) → Shapley-value attribution (SVERL) for deep RL agents, attributing return to temporal phases of behaviour and extracting readable structure from learned policies. LunarLander and CarRacing, with Gradient PG.

🧪 Also on this profile

  • autoresearcher → Autonomous research agent for ML codebases. Define directions, leave it running, and it explores the code, runs experiments, reads papers and iterates overnight.
  • warehouse-bot-training → Custom PPO with multimodal observations (CNN plus task embeddings) for a warehouse navigation agent in Unity.

🎓 Background

  • Gradient PG: took over the club when it was down to four people and inactive, rebuilt it to 40+ members, and served as president for a year. Set up a research track targeting conference publications, alongside workshops, meetups and competitions. Now a senior member advising on research direction and methodology.
  • Previously: ML Engineer at TeaCode.io, R&D Engineer at Dataedo, full-stack developer at Sidnet.

⚡ Skills

  • Programming: Python (PyTorch, TensorFlow, Keras), JavaScript/TypeScript (React, React Native, Node.js), C# (.NET/Unity), C/C++
  • AI/ML: Deep Learning, Mechanistic Interpretability, Natural Language Processing, Reinforcement Learning, Computer Vision, LLMs, Generative Models for Motion
  • Other: Data pipelines, experiment tooling, web & mobile development, EDA

📫 How to contact me

If you're looking for a collaborator on interpretability, AI safety, or applied ML research, feel free to reach out.

Pinned Loading

  1. Gradient-PG/ai-text-detection-neurons Gradient-PG/ai-text-detection-neurons Public

    Sparse probing and activation patching of AI-text detection neurons in frozen BERT (EMNLP 2026)

    Python 2

  2. warehouse-bot-training warehouse-bot-training Public

    Custom PPO implementation with multimodal observations (CNN + task embeddings) for training a warehouse navigation agent in Unity

    Python

  3. autoresearcher autoresearcher Public

    Autonomous researcher working overnight on your ML codebase. Define directions, run Claude Code, wake up to findings. It explores the code, runs experiments, analyzes papers and iterates on new res…

    Python 1