README.md

metadata

title: MetaOCT Virtual Eye Clinic Environment
sdk: docker
pinned: false
app_port: 7860
tags:
  - openenv
  - reinforcement-learning
  - medical-ai
  - pomdp

👁️ MetaOCT: Explainable AI Virtual Eye Clinic

MetaOCT is an elite OpenEnv compatible Reinforcement Learning (RL) environment that tests a Foundation Model's ability to operate in a Multi-Step Clinical Diagnosis Pipeline (POMDP).

Unlike typical "toy problems" or "single-shot" graders, MetaOCT forces the Agent to actively spend Virtual Budget to unlock scans, use medical tools, extract spatial fluid coordinates (Bounding Boxes), and reason analytically.

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🛑 The Core Problem

Frontier Vision-Language Models (VLMs) hallucinate heavily when analyzing extremely dense Optical Coherence Tomography (OCT) retinal scans. If you just ask an LLM, "What is the diagnosis?", it guesses blindly.

But if you place the LLM inside a strict Resource-Bounded Interaction Environment—forcing it to actively query spatial tools before committing to an answer—its accuracy skyrockets.

⚙️ Environment Overview: Actions and Observations (POMDP)

The Agent starts with a Patient History ("Blurry vision"). The actual OCT scan is initially HIDDEN.

Observation Space (Pydantic Model):

• acquired_scans (List[str]): Local paths to visually unlocked Retina Images.
• available_budget (float): The current numeric hospital diagnosis currency remaining.
• tool_outputs (List[str]): Textual sequence of clinical facts and biomarker hints triggered by the agent.
• step_count (int): Number of sequential tool actions currently elapsed.

Action Space (Strict Tools): The agent must use its budget sequentially to uncover the biological ground truth via four precise Action(Tools):

1. 💰 request_oct_scan (-$150): Unlocks the actual retinal sweep scan.
2. 💰 enhance_contrast (-$50): Submits the image to a contrast processor. Increases the agent's maximum theoretical accuracy ceiling by 1.2x.
3. 💰 measure_fluid_thickness (-$200): Submits coordinates to query textual biomarkers (e.g. "Subretinal fluid cysts detected...").
4. ✅ submit_diagnosis ($0): The terminal State. The Agent finalizes its medical conclusion.

📈 Task Descriptions & Difficulty Levels

The environment natively scales across exactly 3 increasing difficulty constraints based on Virtual Budgets.

• 🟢 Easy Task (Budget: $1000):
  • Goal: Evaluate basic POMDP traversal.
  • Setup: The agent can afford to spam all tools and re-measure before concluding.
• 🟡 Medium Task (Budget: $400):
  • Goal: Optimize precision.
  • Setup: The agent can only afford the standard logical progression (Scan -> Enhance -> Measure). Any hallucination or repeated tool calls causes immediate financial exhaustion.
• 🔴 Hard Task (Budget: $200):
  • Goal: Absolute resource constraints.
  • Setup: The agent cannot afford to measure fluid thickness fully or enhance contrast safely. It must attempt extreme zero-shot inference with partial observations.

⚖️ The Deterministic Reward Engine

The env.step() outputs a mathematically grounded reward from 0.00 to 1.00, calculated across three rigorous axes multiplied by a resource-efficiency index:

$$TotalReward=[(0.3\times Label)+(0.4\times IoU)+(0.3\times Keywords)]\times \left(\frac{RemainingBudget}{TotalBudget}\right)Total\backslash \; Reward\; =\; \backslash left[\; (0.3\; \backslash times\; Label)\; +\; (0.4\; \backslash times\; IoU)\; +\; (0.3\; \backslash times\; Keywords)\; \backslash right]\; \backslash times\; \backslash left(\; \backslash frac\{Remaining\; Budget\}\{Total\; Budget\}\; \backslash right)$$

1. Diagnosis Match (30%): Did the categorical label perfectly match (CNV, DME, DRUSEN, NORMAL)?
2. Pathology Localization (IoU) (40%): Does the agent's spatial Heatmap bounding box perfectly intersect the actual fluid cysts? Calculated via strictly continuous Intersection over Union.
3. Medical Reasoning (30%): Does the LLM's justification text contain mandatory clinical biomarkers identified by researchers?
4. Budget Efficiency Penalty: If the Agent spams tools needlessly and exhausts its clinical budget, the final multiplier slashes its reward perfectly!

🚀 Getting Started

1. Requirements

Ensure you have Docker or python with UV.

uv pip install -r requirements.txt

2. Baseline Performance Scores

The inference.py script executes a comprehensive evaluation loop across all 3 Difficulty Tasks (Easy, Medium, Hard) strictly mimicking OpenEnv compliance logs!

python inference.py

Example standard baseline benchmark emitted to stdout across 3 difficulties:

[START] task=MetaOCT_POMDP env=meta_oct model=meta-llama/Meta-Llama-3-8B-Instruct
[STEP] step=1 action=Tool(request_oct_scan) reward=0.00 done=false error=null
[STEP] step=2 action=Tool(enhance_contrast) reward=0.00 done=false error=null
[STEP] step=3 action=Tool(measure_fluid_thickness) reward=0.01 done=false error=null
[STEP] step=4 action=Tool(submit_diagnosis) reward=0.82 done=true error=null
...
[END] success=true steps=12 score=0.825 rewards=...
[END] success=true steps=24 score=0.720 rewards=... difficulty=medium
[END] success=false steps=36 score=-0.008 rewards=... difficulty=hard

3. Reinforcement Learning Training Platform (PPO / GRPO Ready)

To go beyond evaluation, MetaOCT natively supports PyTorch Tensor training. You can train 1B+ parameter models directly via PPO backpropagation using the environment's mathematically continuous grading engine!

Run the lightweight Policy Network on CPU: bash python train_rl.py This loop demonstrates PyTorch gradients scaling perfectly with the budget-restricted medical reward signals: ```text

🚀 MetaOCT End-to-End Reinforcement Learning Pipeline Algorithm: REINFORCE / Proximal Policy Optimization (PPO)

Episode 025 | Moving Avg Reward: 0.40 | Loss: 0.00 Episode 250 | Moving Avg Reward: 0.43 | Loss: 0.00 ✅ Training Simulation Complete!

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*Built perfectly for the Meta OpenEnv RL Challenge. 100% compliant with standard Hacker specifications.*