GRL-v0 Implementation Guide¶
Purpose: Technical specifications for implementing GRL-v0
Audience: Developers ready to implement GRL
Prerequisites: Familiarity with tutorial chapters
Overview¶
This directory provides implementation specifications for GRL-v0. Each component is documented with:
- Theoretical foundation
- Interface design
- Implementation details
- Testing strategy
Architecture Overview¶
GRL-v0 is organized into four layers spanning both Part I (Reinforcement Fields) and Part II (Emergent Structure):
┌─────────────────────────────────────────────────────────────────┐
│ Layer 4: Abstraction (Part II: Emergent Structure) │
│ ┌─────────────────────────┐ ┌─────────────────────────────┐ │
│ │ Spectral Clustering │ │ Concept Hierarchy │ │
│ │ (Functional clusters) │ │ (Multi-level abstraction) │ │
│ └─────────────────────────┘ └─────────────────────────────┘ │
├─────────────────────────────────────────────────────────────────┤
│ Layer 3: Inference (Part I: Reinforcement Fields) │
│ ┌─────────────────────────┐ ┌─────────────────────────────┐ │
│ │ Policy Inference │ │ Soft State Transitions │ │
│ │ (Energy minimization) │ │ (Distributed successors) │ │
│ └─────────────────────────┘ └─────────────────────────────┘ │
├─────────────────────────────────────────────────────────────────┤
│ Layer 2: Reinforcement (Part I: Reinforcement Fields) │
│ ┌─────────────────────────┐ ┌─────────────────────────────┐ │
│ │ RF-SARSA │ │ MemoryUpdate │ │
│ │ (Two-layer TD system) │ │ (Belief transition) │ │
│ └─────────────────────────┘ └─────────────────────────────┘ │
├─────────────────────────────────────────────────────────────────┤
│ Layer 1: Representation (Part I: Reinforcement Fields) │
│ ┌─────────────────────────┐ ┌─────────────────────────────┐ │
│ │ Particle Memory │ │ Kernel Functions │ │
│ │ (Belief state Ω) │ │ (RKHS geometry) │ │
│ └─────────────────────────┘ └─────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────┘
Part I (Layers 1-3): Particle-based learning, reinforcement fields, belief-state inference
Part II (Layer 4): Emergent structure discovery, spectral concept formation, hierarchical control
Based on: Section V of the original paper (Chiu & Huber, 2022)
Implementation Specifications¶
Core Infrastructure¶
| Spec | Component | Priority | Status |
|---|---|---|---|
| 00 | Implementation Overview | - | ⏳ Planned |
| 01 | Architecture Design | - | ⏳ Planned |
Layer 1: Representation¶
| Spec | Component | Priority | Status |
|---|---|---|---|
| 02 | Particle Memory | ⭐ 1 | ⏳ Planned |
| 03 | Kernel Functions | ⭐ 2 | ⏳ Planned |
Layer 2: Reinforcement¶
| Spec | Component | Priority | Status |
|---|---|---|---|
| 04 | MemoryUpdate Algorithm | ⭐ 3 | ⏳ Planned |
| 05 | RF-SARSA Algorithm | ⭐ 4 | ⏳ Planned |
Layer 3: Inference¶
| Spec | Component | Priority | Status |
|---|---|---|---|
| 06 | Policy Inference | ⭐ 5 | ⏳ Planned |
| 07 | Soft State Transitions | ⭐ 6 | ⏳ Planned |
Layer 4: Abstraction (Part II)¶
| Spec | Component | Priority | Status |
|---|---|---|---|
| 08 | Spectral Clustering | 🔬 1 | ⏳ Planned |
| 09 | Concept Discovery | 🔬 2 | ⏳ Planned |
| 10 | Concept Hierarchy | 🔬 3 | ⏳ Planned |
| 11 | Concept-Conditioned Policies | 🔬 4 | ⏳ Planned |
Note: Part II implementation begins after Part I is validated (see Priority 7 below)
Demonstration Environment¶
| Spec | Component | Priority | Status |
|---|---|---|---|
| 12 | 2D Navigation Domain | ⭐⭐ 7 | ⏳ Planned |
Note: This is the primary environment for validating and demonstrating GRL-v0
Supporting Components¶
| Spec | Component | Status |
|---|---|---|
| 13 | Environment Interface | ⏳ Planned |
| 14 | Visualization Tools | ⏳ Planned |
| 15 | Testing Strategy | ⏳ Planned |
| 16 | Experiment Protocols | ⏳ Planned |
Implementation Priorities¶
Priority 1: Particle Memory ⭐¶
Why first: This IS the agent state. Everything else depends on it.
Key Features:
- Particle storage:
[(z_i, w_i)] - Energy queries:
E(z) = -Σ w_i k(z, z_i) - Association: Find similar particles
- Management: Add, merge, prune
Priority 2: Kernel Functions¶
Why second: Defines geometry of augmented space.
Key Features:
- RBF kernel with ARD
- Augmented kernel:
k((s,θ), (s',θ')) - Gradient computation
- Hyperparameter adaptation
Priority 3: MemoryUpdate (Algorithm 1)¶
Why third: The belief-state transition operator.
Key Features:
- Particle instantiation
- Kernel-based association
- Weight propagation
- Regularization
Priority 4: RF-SARSA (Algorithm 2)¶
Why fourth: Provides reinforcement signals.
Key Features:
- Primitive SARSA layer
- Field GP layer
- Two-layer coupling
- ARD updates
Priority 5: Policy Inference¶
Why fifth: How actions are selected.
Key Features:
- Energy-based selection
- Boltzmann sampling
- Greedy mode
- Gradient-based optimization (optional)
Priority 6: Soft State Transitions¶
Why sixth: Emergent uncertainty from kernel overlap.
Key Features:
- Distributed successor states
- Transition probability from kernel
- Implicit POMDP interpretation
- Uncertainty quantification
Priority 7: 2D Navigation Domain ⭐⭐ Critical¶
Why seventh: Primary validation and demonstration environment.
Purpose:
- Reproduce the original paper (Figure 4, Section VI)
- Validate all Part I components in a controlled setting
- Demonstrate GRL capabilities professionally
Key Features:
- Continuous 2D state space
- Parametric movement actions (direction, magnitude)
- Obstacles, walls, and goals
- Energy landscape visualization
- Particle memory visualization
- Trajectory recording
Deployment Goals:
- Reproducibility: Match original paper results
- Professionalism: Publication-quality figures and demos
-
Accessibility:
-
Python API for programmatic use
- Interactive web interface for exploration
- Jupyter notebook tutorials
- Extensibility: Easy to add new scenarios
See: 2D Navigation Specification below
Part II Priorities (After Part I Validated)¶
Priority 8: Spectral Clustering (Part II)¶
Why first in Part II: Foundation for concept discovery.
Key Features:
- Kernel matrix construction from particle memory
- Eigendecomposition
- Cluster identification
- Concept subspace projection (from quantum-inspired Chapter 05)
Priority 9: Concept Discovery¶
Why second: Automated structure learning.
Key Features:
- Functional similarity metrics
- Automatic concept identification
- Concept naming/labeling
- Validation metrics
Priority 10: Concept Hierarchy¶
Why third: Multi-level abstraction.
Key Features:
- Nested subspace structure
- Hierarchical composition
- Transfer across concepts
- Visualization
Priority 11: Concept-Conditioned Policies¶
Why fourth: Use discovered structure.
Key Features:
- Policy per concept
- Concept-gated execution
- Hierarchical planning
- Abstract reasoning
2D Navigation Domain Specification¶
Overview¶
The 2D Navigation Domain is the primary environment for GRL-v0 validation and demonstration. Originally introduced in the paper (Figure 4, Section VI), we aim to:
- Reproduce existing results with high fidelity
- Enhance the domain to professional standards
- Deploy as an accessible, interactive demonstration
Domain Description¶
State Space: \(\mathcal{S} = [0, L_x] \times [0, L_y]\) (continuous 2D position)
Action Space: \(\mathcal{A} = \{(\theta, v) : \theta \in [0, 2\pi), v \in [0, v_{\max}]\}\) - \(\theta\): Direction angle - \(v\): Speed magnitude
Augmented Space: \(\mathcal{Z} = \mathcal{S} \times \mathcal{A}\) (4D continuous)
Dynamics: $\(s_{t+1} = s_t + v \cdot (\cos\theta, \sin\theta) \cdot \Delta t\)$
Obstacles: Polygonal or circular regions (configurable)
Goals: Target positions with rewards
Scenarios (From Original Paper)¶
Scenario 1: Simple goal-reaching - Single goal, no obstacles - Validate basic particle memory and policy inference
Scenario 2: Navigation with obstacles - Multiple obstacles (replicating Figure 4) - Demonstrate smooth navigation around barriers - Show energy landscape and particle distribution
Scenario 3: Multi-goal task - Multiple goals with different rewards - Demonstrate action-state duality - Show concept emergence (if Part II implemented)
Reproduction Goals¶
Figure 4 Recreation:
- Exact environment setup from paper
- Energy landscape visualization
- Particle memory visualization
- Learned trajectory comparison
Quantitative Metrics:
- Success rate (reaching goal)
- Path efficiency (vs. optimal)
- Collision rate (with obstacles)
- Learning curves (episodes to convergence)
Qualitative Assessment:
- Smooth, natural trajectories
- Efficient obstacle avoidance
- Energy landscape interpretability
Professional Enhancement¶
Visual Quality:
- Publication-ready figures (vector graphics)
- Interactive animations (mp4/gif)
- Real-time rendering (60 FPS)
-
Multiple view modes:
-
Top-down environment view
- Energy landscape heatmap
- Particle distribution overlay
- Trajectory history
Code Quality:
- Modular, extensible design
- Configuration files (YAML/JSON)
- Logging and metrics
- Reproducible random seeds
Documentation:
- API reference
- Tutorial notebooks
- Example scripts
- Performance benchmarks
Deployment Plan¶
Phase 1: Core Implementation¶
Components:
- Environment class (
Nav2DEnv) - Rendering engine
- Action space handling
- Reward function
Deliverables:
- Python package installable via pip
- Basic visualization
- Unit tests
Phase 2: GRL Integration¶
Components:
- Particle memory integration
- MemoryUpdate in navigation loop
- RF-SARSA training
- Energy landscape computation
Deliverables:
- Training scripts
- Evaluation scripts
- Experiment configs
Phase 3: Professional Demo¶
Components:
- Interactive Jupyter notebooks
- Web-based interface (Flask/FastAPI + React)
- Video demonstrations
- Benchmark suite
Deliverables:
- Hosted web demo (e.g., Hugging Face Spaces, Streamlit)
- Tutorial video
- Blog post
Web Interface Features¶
Interactive Controls:
- Place obstacles (drag-and-drop)
- Set goal positions
- Adjust GRL hyperparameters (kernel bandwidth, temperature)
- Start/stop/reset simulation
Visualizations:
- Real-time agent movement
- Energy landscape evolution
- Particle memory growth
- Learning curves
Export:
- Save trajectories
- Download figures
- Export particle memory
Sharing:
- Permalink to configurations
- Embed in documentation
- Public gallery of scenarios
API Design¶
from grl.envs import Nav2DEnv
from grl.agents import GRLAgent
# Create environment
env = Nav2DEnv(
size=(10, 10),
obstacles=[
{"type": "circle", "center": (5, 5), "radius": 1.5},
{"type": "polygon", "vertices": [(2, 2), (3, 2), (3, 3)]},
],
goal=(9, 9),
goal_reward=10.0,
)
# Create GRL agent
agent = GRLAgent(
kernel="rbf",
lengthscale=1.0,
temperature=0.1,
)
# Training loop
for episode in range(num_episodes):
state = env.reset()
done = False
while not done:
action = agent.act(state)
next_state, reward, done, info = env.step(action)
agent.update(state, action, reward, next_state)
state = next_state
# Visualize
if episode % 10 == 0:
env.render(show_particles=True, show_energy=True)
agent.save_memory(f"memory_ep{episode}.pkl")
# Evaluate
success_rate, avg_path_length = evaluate(agent, env, num_trials=100)
Timeline¶
Week 1-2: Core environment implementation Week 3-4: GRL integration and training Week 5-6: Visualization and demos Week 7-8: Web interface and deployment Week 9-10: Documentation and tutorials
Target: Complete professional 2D navigation demo by March 2026
Application Domains Beyond 2D Navigation¶
Philosophy: GRL as a Generalization¶
Key Insight: Traditional RL is a special case of GRL when:
- Action space is discrete → GRL with fixed parametric mappings
- Action space is finite → GRL with finite operator set
- Q-learning → GRL with trivial augmentation (state only)
Strategic Goal: Demonstrate that GRL subsumes classical RL, including modern applications like:
- RLHF for LLMs (Reinforcement Learning from Human Feedback)
-
PPO/SAC for continuous control
-
DQN for discrete actions
-
Actor-critic methods
This positions GRL not as "another RL algorithm" but as a unifying framework that recovers existing methods as special cases while enabling new capabilities.
Priority Application Domains¶
Tier 1: Validation Environments (Demonstrate Correctness)¶
Goal: Show GRL recovers classical RL results
| Domain | Type | Classical Baseline | GRL Advantage | Status |
|---|---|---|---|---|
| 2D Navigation | Continuous control | N/A (novel) | Smooth generalization | ⏳ Priority 7 |
| CartPole | Discrete control | DQN | Continuous action variant | 📋 Planned |
| Pendulum | Continuous control | DDPG, SAC | Parametric torque | 📋 Planned |
| MuJoCo Ant | Robotics | PPO, SAC | Compositional gaits | 📋 Planned |
Tier 2: Strategic Environments (Demonstrate Generality)¶
Goal: Show GRL applies to modern RL problems, including LLMs
Note: These are theoretical connections with potential future implementations. Each would require significant engineering effort.
| Domain | Type | Why Important | Theoretical Connection | Implementation |
|---|---|---|---|---|
| LLM Fine-tuning (RLHF) | Discrete (tokens) | Massive industry relevance | Token selection as discrete action, PPO as special case | 🔬 Exploratory |
| Prompt Optimization | Discrete sequences | Growing field | Parametric prompt generation in embedding space | 🔬 Exploratory |
| Molecule Design | Graph generation | Drug discovery | Parametric molecule operators | 🔬 Exploratory |
| Neural Architecture Search | Discrete choices | AutoML | Compositional architecture operators | 🔬 Exploratory |
Primary Value: Demonstrating that GRL theoretically generalizes existing methods used in commercially relevant problems (RLHF, prompt tuning, etc.)
Implementation Reality: These are massive undertakings comparable to full research projects. They serve as:
- Motivation for why GRL matters
- Future directions if resources/collaborators available
- Examples in theoretical justification documents
Tier 3: Novel Environments (Demonstrate Unique Capabilities)¶
Goal: Show what GRL enables that classical RL cannot do easily
| Domain | Type | Novel Capability | Why GRL Shines | Status |
|---|---|---|---|---|
| Physics Simulation | Continuous fields | Apply force fields, not point forces | Operator actions on state space | 📋 Planned |
| Fluid Control | PDE-governed | Manipulate flow fields | Field operators, neural operators | 📋 Planned |
| Image Editing | High-dim continuous | Parametric transformations | Smooth action manifolds | 📋 Planned |
| Multi-Robot Coordination | Continuous, multi-agent | Compositional team behaviors | Operator algebra | 📋 Planned |
Recovering Classical RL: A Bridge to Adoption¶
Document: docs/GRL0/recovering_classical_rl.md (to be created)
Purpose: Show step-by-step how classical RL algorithms emerge from GRL as special cases
Contents:
-
Q-learning from GRL
-
Discrete action space as fixed parametric mapping
- Particle memory as replay buffer
-
TD update as special case of MemoryUpdate
-
DQN from GRL
-
Neural network Q-function as continuous approximation of particle field
- Experience replay as particle subsampling
-
Target networks as delayed MemoryUpdate
-
Policy Gradient (REINFORCE) from GRL
-
Boltzmann policy from energy landscape
- Score function gradient as field gradient
-
Baseline as energy normalization
-
Actor-Critic (PPO, SAC) from GRL
-
Actor = policy inference from field
- Critic = reinforcement field itself
-
Entropy regularization as temperature parameter
-
RLHF for LLMs from GRL
-
Token selection as discrete action
- Reward model as energy function
- PPO update as special case of RF-SARSA
Impact: This document becomes the key reference for convincing classical RL researchers that GRL is not alien, but a natural generalization.
LLM Fine-tuning as a GRL Application (Exploratory)¶
Status: Theoretical connection established, implementation exploratory
Why This Is Interesting:
- Relevance: RLHF is used for ChatGPT, Claude, Llama, Gemini
- Familiarity: Most ML researchers understand this problem
- Validation: If GRL generalizes RLHF theoretically, it validates the framework's breadth
Theoretical Formulation¶
State: \(s_t\) = (prompt, partial response up to token \(t\))
Action: \(a_t \in \mathcal{V}\) where \(\mathcal{V}\) = vocabulary (discrete)
GRL View:
- Augmented space: \((s_t, \theta_t)\) where \(\theta_t\) represents token choice
- Particle memory: stores (prompt, response, reward) experiences
- Reinforcement field: \(Q^+(s_t, \theta_t)\) over semantic embedding
- Policy inference: Sample from Boltzmann over \(Q^+\)
Key Insight: Standard RLHF (PPO) is GRL with:
- Discrete action space (tokens)
- Neural network approximation of field
- On-policy sampling
This theoretical connection is documented in: Recovering Classical RL from GRL
Potential GRL Advantages (Theoretical)¶
- Off-policy learning: Particle memory could enable experience replay
- Smooth generalization: Nearby prompts might share value via kernel
- Uncertainty: Sparse particles could indicate high uncertainty
- Interpretability: Energy landscape over prompt space
However: These advantages are speculative without empirical validation.
Implementation Reality¶
Challenges:
- Infrastructure: Requires reward model training, human feedback data, preference datasets
- Computational cost: LLM fine-tuning is expensive (even GPT-2)
- Comparison difficulty: Matching PPO requires careful hyperparameter tuning
- Integration: Modern RLHF uses TRL, transformers, accelerate — non-trivial to integrate
- Validation: Showing clear advantages requires extensive controlled experiments
Estimated Effort: 6-12 months of focused work with GPU resources
When to Pursue:
- ✅ After GRL validated on simpler environments (2D Nav, classical RL)
- ✅ If collaborators or funding available
- ✅ If clear path to demonstrating advantages
- ✅ If access to human feedback datasets
Realistic First Step (if pursued):
- Toy RLHF-like problem (small vocabulary, simple preference task)
- Not real LLM, but demonstrates GRL can handle discrete sequential choices
- Fast iteration, low compute cost
Environment Simulation Package Structure¶
Given the scope of applications, we'll need a well-organized environment package:
src/grl/envs/
├── __init__.py
├── base_env.py # GRL environment interface
│
├── validation/ # Tier 1: Classical RL baselines
│ ├── nav2d.py # 2D navigation (Priority 7)
│ ├── cartpole.py # Discrete control
│ ├── pendulum.py # Continuous control
│ └── mujoco_envs.py # Robotics (Ant, Humanoid)
│
├── strategic/ # Tier 2: Modern RL applications
│ ├── llm_finetuning.py # 🔥 RLHF for LLMs (High Priority)
│ ├── prompt_optimization.py # Prompt tuning
│ ├── molecule_design.py # Drug discovery
│ └── nas.py # Neural Architecture Search
│
├── novel/ # Tier 3: GRL-native applications
│ ├── physics_sim.py # Force field control
│ ├── fluid_control.py # PDE-governed systems
│ ├── image_editing.py # Parametric image transforms
│ └── multi_robot.py # Multi-agent coordination
│
├── wrappers/ # Adapters for existing environments
│ ├── gym_wrapper.py # OpenAI Gym → GRL
│ ├── gymnasium_wrapper.py # Gymnasium → GRL
│ ├── dm_control_wrapper.py # DeepMind Control → GRL
│ └── rlhf_wrapper.py # TRL/transformers → GRL
│
└── scenarios/ # Predefined configurations
├── paper_scenarios.py # Scenarios from original paper
├── benchmark_suite.py # Standard benchmarks
└── tutorials.py # Teaching examples
Key Design Principle:
-
Wrappers allow GRL to be applied to any existing RL environment
-
Native environments showcase GRL's unique capabilities
- Scenarios provide reproducible experiments
Strategic Roadmap Update¶
Phase 1 (Q1 2026): Foundation ⭐⭐⭐ - Complete Part I tutorial - Implement core GRL components - ✅ 2D Navigation validated
Phase 2 (Q2 2026): Classical RL Recovery ⭐⭐ - Implement wrappers (Gym, Gymnasium) - Reproduce DQN on CartPole - Reproduce SAC on Pendulum - Document: "Recovering Classical RL from GRL" ✅ Complete - Paper A submission
Phase 3 (Q3-Q4 2026): Novel Contributions ⭐ - Amplitude-based RL (if promising) - MDL consolidation - Concept-based mixture of experts - Papers B & C submissions
Future Directions (No timeline):
- Theoretical articles: Justify how RLHF, prompt optimization, molecule design are special cases
- Implementation: If resources/collaborators available, pick 1-2 strategic applications
- Novel applications: Physics simulation, multi-robot coordination (GRL-native capabilities)
Success Metrics¶
Technical (Achievable):
- 2D Navigation demo complete with professional web interface
- GRL recovers DQN/SAC results on classical benchmarks (±5% performance)
- Classical RL wrappers work with existing environments
- Documentation complete and accessible
Research (Achievable):
- Part I tutorial complete (Chapters 0-10)
- Part II foundation (concept subspaces formalized)
- "Recovering Classical RL" document demonstrates generality
- Paper A submitted (operator formalism)
- 1-2 papers on novel contributions (amplitude-based RL or MDL consolidation)
Adoption (Aspirational):
- GitHub stars: 100+ (realistic), 1000+ (stretch)
- External users beyond our lab
- Cited in other papers
- Conference workshop or tutorial (if invited)
Strategic Applications (Aspirational, No Timeline):
- Theoretical articles justify RLHF/prompt-opt as special cases
- If resources available: implement 1-2 strategic applications
- Industry partnerships (if opportunities arise)
Code Structure¶
src/grl/
├── __init__.py
├── core/
│ ├── particle_memory.py # Priority 1: Particle state
│ ├── kernels.py # Priority 2: RKHS geometry
│ └── soft_transitions.py # Priority 6: Emergent uncertainty
├── algorithms/
│ ├── memory_update.py # Priority 3: Belief transition
│ ├── rf_sarsa.py # Priority 4: TD learning
│ └── policy_inference.py # Priority 5: Action selection
├── concepts/ # Part II: Emergent Structure
│ ├── spectral_clustering.py # Priority 8: Functional clustering
│ ├── concept_discovery.py # Priority 9: Automated structure
│ ├── concept_hierarchy.py # Priority 10: Multi-level abstraction
│ └── concept_policies.py # Priority 11: Hierarchical control
├── envs/
│ ├── nav2d.py # Priority 7: 2D Navigation Domain
│ ├── scenarios.py # Predefined scenarios (Figure 4)
│ └── base_env.py # Environment interface
├── agents/
│ ├── grl_agent.py # Complete GRL agent
│ └── evaluation.py # Agent evaluation tools
├── utils/
│ ├── config.py # Configuration management
│ ├── reproducibility.py # Random seeds, determinism
│ └── metrics.py # Performance metrics
├── visualization/
│ ├── energy_landscape.py # Energy field heatmaps
│ ├── particle_viz.py # Particle memory plots
│ ├── trajectory_viz.py # Agent trajectories
│ └── concept_viz.py # Concept subspace plots (Part II)
└── web/ # Web deployment (Priority 7)
├── api.py # FastAPI backend
├── static/ # Frontend assets
└── templates/ # HTML templates
Dependencies¶
Core Dependencies¶
torch >= 2.0 # Neural operators, gradient computation
numpy >= 1.24 # Numerical operations
scipy >= 1.10 # Scientific computing, optimization
gpytorch >= 1.10 # Gaussian processes (optional)
scikit-learn >= 1.3 # Spectral clustering (Part II)
Visualization¶
matplotlib >= 3.7 # Static plots
seaborn >= 0.12 # Statistical visualization
plotly >= 5.14 # Interactive plots
Web Deployment (Priority 7)¶
fastapi >= 0.104 # Backend API
uvicorn >= 0.24 # ASGI server
pydantic >= 2.4 # Data validation
jinja2 >= 3.1 # Templating
Development¶
pytest >= 7.4 # Testing
black >= 23.9 # Code formatting
mypy >= 1.6 # Type checking
sphinx >= 7.2 # Documentation
Quality Standards¶
Code Quality¶
- All public functions have docstrings (NumPy style)
- Type hints throughout (Python 3.10+)
- Unit test coverage > 80%
- No linting errors (black, mypy, flake8)
- Examples run without modification
- Math notation matches paper
Part I Validation¶
- Reproduce original paper results (Figure 4)
- MemoryUpdate converges
- RF-SARSA learns effectively
- Energy landscapes are smooth
- Particle memory grows/prunes correctly
Part II Validation (After Part I)¶
- Spectral clustering identifies meaningful concepts
- Concept hierarchy is interpretable
- Concept-conditioned policies improve performance
- Transfer learning across concepts works
2D Navigation Demo¶
- Web interface is responsive and intuitive
- Visualizations render at 60 FPS
- All scenarios from paper work
- Export/sharing functionality works
- Tutorial notebooks are clear and complete
Summary¶
GRL-v0 Implementation spans:
- Part I (Layers 1-3): Particle-based reinforcement fields
- Part II (Layer 4): Emergent structure and concept discovery
- Demonstration: Professional 2D navigation domain with web deployment
Priority Order:
- Part I foundations (Priorities 1-6)
-
2D Navigation validation (Priority 7) ⭐⭐ Critical milestone
-
Part II extensions (Priorities 8-11)
- Additional environments and experiments
Target: Complete 2D navigation demo by March 2026
See also: Research Roadmap for broader research plan
Last Updated: January 14, 2026