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EuroHPC Digital Twin: Electrophysiology Foundation Model & AI Scientist

Core Vision: Build an Electrophysiology Foundation Model and deploy AI Scientist agents for autonomous neuroscience discovery — powered by EuroHPC exascale infrastructure.

A collaboration between SNU Connectome Lab (Transconnectome I / Diver) and Viktor Jirsa's group (EBRAINS / INS, Aix-Marseille University).


🧠 Project Overview

The Problem

Electrophysiology data (EEG, MEG, intracranial recordings) is massive, heterogeneous, and underutilized. Current analysis pipelines are task-specific, require extensive manual tuning, and don't generalize across datasets, devices, or populations.

Our Solution: Two Pillars

Pillar 1 — Electrophysiology Foundation Model

A large-scale pretrained model that learns universal neural representations from diverse electrophysiology data:

  • Data: Multi-modal (EEG, MEG, ECoG), multi-site, multi-device recordings — thousands of hours
  • Architecture: Transformer-based with spatiotemporal tokenization (cf. BrainOmni, LaBraM, MEG-GPT)
  • Pretraining: Self-supervised learning on raw neural signals — requires massive GPU compute
  • Downstream: Zero-shot/few-shot transfer to disorder classification, BCI, cognitive decoding, biomarker discovery

Pillar 2 — AI Scientist for Neuroscience

Autonomous research agents (inspired by Sakana AI's AI Scientist) that:

  • Generate hypotheses from literature and data patterns
  • Design and run experiments on the foundation model
  • Analyze results, produce figures, write manuscripts
  • Iterate through tree-search-based exploration of the hypothesis space
  • Scale with EuroHPC compute to explore thousands of experimental configurations in parallel

Why EuroHPC?

  • Foundation model pretraining on 1,000+ hours of neural data requires sustained GPU-months
  • AI Scientist agents running parallel experiment trees multiply compute needs 10–100×
  • Institutional clusters (even DGX Spark) are insufficient for population-scale pretraining + autonomous exploration

🤝 Key Collaborators

Viktor Jirsa (Aix-Marseille / EBRAINS)

  • Chief Science Officer, EBRAINS AISBL
  • Director, Inserm Institut de Neurosciences des Systèmes (INS)
  • Co-creator of The Virtual Brain (TVB)
  • Leads Virtual Brain Twin Project (2024–2027, €10M EU Horizon Health)
  • Leads EBRAINS 2.0 WP3: Digital Twins through Modelling and Simulation
  • Role in this project: Electrophysiology data access (EBRAINS datasets), simulation framework integration, clinical validation pipeline

SNU Connectome Lab (Cha Ji-wook)

  • Transconnectome I — Diver Project: Connectome-based deep learning for brain disorders
  • Expertise: fMRI/dMRI/EEG analysis, contrastive learning, brain network modeling
  • Infrastructure: DGX Spark (local development), EuroHPC (target production)
  • Role in this project: Foundation model architecture, AI Scientist pipeline, training infrastructure

📅 Timeline & Milestones

Date Milestone Status
2026 May Benchmark Access 신청 (monthly rolling) Next
2026 May–Jul Foundation model scaling tests on LUMI/Leonardo Planned
2026 Jun AI Scientist prototype (local DGX Spark) Planned
2026 Sep 4 Regular Access 마감 (10:00 CEST) Target
2027 Jan Regular Access 결과 발표
2027 Jan–Dec Production: Foundation model pretraining (1M+ GPU-hours)
2027 H1 AI Scientist autonomous experiment runs
2027 H2 Joint publication with Jirsa group

EuroHPC 2026 주요 마감일

Access Mode Cut-off 결과 발표 기간
Benchmark 매월 1일 (rolling) 제출 후 2–3주 3개월
Development 매월 1일 (rolling) 제출 후 2–3주
Regular 2026-09-04 2027-01 12개월
Extreme Scale 2026-10-19 2027-03 12개월

📊 EuroHPC Access Strategy

Phase 1: Benchmark Access (2026 Q2)
  ├─ Foundation model: single-node → multi-node scaling test
  ├─ AI Scientist: agent loop profiling, GPU utilization
  └─ Target system: LUMI-G or Leonardo (GPU partitions)

Phase 2: Regular Access — Scientific Track (2026 Sep submission)
  ├─ 1,000,000 GPU-hours for full pretraining + experiment runs
  ├─ Benchmark results as scalability evidence
  └─ 12-month allocation

Phase 3 (Future): Extreme Scale Access
  ├─ Population-scale foundation model (10K+ subjects)
  └─ Continuous AI Scientist operation

→ See GPU Hour Justification for compute breakdown.


📂 Repository Structure

eurohpc-tvb-digital-twin/
├── README.md                          # ← You are here
├── proposal/
│   └── gpu_hour_justification.md      # Compute resource breakdown (1M GPUh)
├── benchmarks/
│   └── scaling_plan.md                # Strong/weak scaling test design
├── gpu_hour_model/                    # Resource estimation models
├── scripts/                           # Automation & data collection
└── docs/
    ├── eurohpc_application.md         # Application guidelines & templates
    ├── jirsa_collaboration_plan.md    # Jirsa/EBRAINS collaboration strategy
    └── projects/
        └── diver/README.md            # Diver project integration

🔗 Resources

EuroHPC

Electrophysiology Foundation Models (State of the Art)

  • BrainOmni — Unified EEG+MEG foundation model
  • LaBraM — Large Brain Model (2,500h EEG pretraining)
  • MEG-GPT — Transformer-based MEG foundation model

AI Scientist

EBRAINS & TVB

Transconnectome / Diver


🚀 Onboarding Guide

신규 참여자를 위한 단계별 가이드:

  1. 이 README를 읽고 프로젝트의 두 핵심 축(Foundation Model + AI Scientist)을 이해합니다.
  2. 관련 논문 리뷰: 위 Resources의 BrainOmni, LaBraM, AI Scientist v2 논문을 읽습니다.
  3. Diver 프로젝트 파악: docs/projects/diver/에서 커넥톰 기반 파이프라인을 확인합니다.
  4. Jirsa 협업 계획: docs/jirsa_collaboration_plan.md에서 EBRAINS 연계 전략을 확인합니다.
  5. EuroHPC 신청 절차: docs/eurohpc_application.md에서 요구사항을 확인합니다.
  6. 벤치마크 설계: benchmarks/scaling_plan.md에서 스케일링 테스트를 확인합니다.
  7. GPU 시간 산정: proposal/gpu_hour_justification.md에서 자원 요구량을 확인합니다.

Maintained by SNU Connectome Lab — Seoul National University, Department of Psychology.

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EuroHPC proposal and benchmark workspace for TVB-based personalized brain simulation and GPU-hour allocation planning.

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