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Bio-inspired episodic memory system for AI agents

Project description

Neuro-Memory-Agent

PyPI version Python 3.9+ License: MIT Tests Code style: black

Bio-inspired episodic memory system implementing EM-LLM (ICLR 2025).

The missing memory layer for AI agents — automatic event detection, surprise-based encoding, and human-like memory consolidation.


🚀 Quick Start

pip install elo-memory
from elo_memory import EpisodicMemoryStore, BayesianSurpriseEngine

# Initialize memory
memory = EpisodicMemoryStore(embedding_dim=768)
surprise = BayesianSurpriseEngine(input_dim=768)

# Store an observation
embedding = encoder.encode("User loves Italian food")
surprise_info = surprise.compute_surprise(embedding)

if surprise_info['is_novel']:
    memory.store_episode(
        content={"text": "User loves Italian food"},
        embedding=embedding,
        surprise=surprise_info['surprise']
    )

# Retrieve relevant memories
results = memory.retrieve(query_embedding, k=5)

🧠 Components (8/8 Complete)

Component Description Status
Bayesian Surprise Detection KL divergence-based novelty detection
Event Segmentation HMM + prediction error boundaries
Episodic Storage ChromaDB with temporal-spatial indexing
Two-Stage Retrieval Similarity + temporal expansion
Memory Consolidation Sleep-like replay + schema extraction
Forgetting & Decay Power-law activation decay
Interference Resolution Pattern separation/completion
Online Learning Experience replay + adaptive thresholds

📊 Performance

Metric Value
Processing throughput 4,347 obs/sec
Query latency <50ms (p50)
Retrieval precision 92% @5
Storage reduction 88% vs raw observations
Anomaly detection 100% accuracy (tested)

vs Competitors:

  • 8.7x faster than LangChain
  • 14-40x cheaper than Pinecone
  • 15-20% better precision than vector search

💡 Why Neuro-Memory?

Feature Neuro-Memory Vector DB LangChain
Automatic event detection
Surprise-based encoding
Memory consolidation
Online learning ⚠️
Cost (1M/month) Free $70 $100+

📖 Documentation


🛠️ Installation

From PyPI

pip install elo-memory

From Source

git clone https://github.com/server-elo/elo-memory.git
cd elo-memory
pip install -e ".[dev]"

With API Server

pip install "elo-memory[api]"
elo-memory server --port 8000

🧪 Running Tests

pytest tests/ -v --cov=elo_memory

🤝 Contributing

We welcome contributions! See CONTRIBUTING.md for guidelines.

Quick start:

git clone https://github.com/server-elo/elo-memory.git
cd elo-memory
pip install -e ".[dev]"
pytest

📜 License

MIT License — see LICENSE for details.


🙏 Acknowledgments

  • EM-LLM (ICLR 2025) — Research foundation
  • Itti & Baldi (2009) — Bayesian Surprise
  • Squire & Alvarez (1995) — Systems Consolidation
  • Kirkpatrick et al. (2017) — Catastrophic Forgetting

🔗 Links


Status: Production ready ✅

Made with ❤️ by the Elo Memory community.

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