Federated Learning for Privacy-Preserving Image Classification

A production-grade distributed federated learning framework that enables privacy-preserving image classification across multiple clients without sharing raw data.

91%+
Accuracy on MNIST
50+
Concurrent Clients
25%
Latency Reduction
Coordinator
Client 1
Client 2
Client 3
Client N

Key Features

Built with privacy, scalability, and production readiness in mind

Privacy-First Design

Raw data never leaves client devices. Implements differential privacy with configurable ε and δ parameters for mathematical privacy guarantees.

Scalable Architecture

Support for 50+ concurrent clients with horizontal scaling. Auto-scaling AWS infrastructure with load balancing and fault tolerance.

High Performance

Optimized gRPC communication protocols, model compression, and 25% latency reduction compared to centralized approaches.

Production Ready

Containerized deployment with Docker, comprehensive monitoring, structured logging, and automated error recovery mechanisms.

Advanced ML

Built on PyTorch with FedAvg algorithm, convergence detection, and support for CNN architectures on standard datasets.

Cloud Native

Complete Terraform configuration for AWS deployment with auto-scaling groups, load balancers, and managed databases.

System Architecture

Distributed, scalable, and privacy-preserving by design

Client Layer

Local Training
Privacy Engine
Model Compression

Communication Layer

gRPC Protocol
TLS Encryption
Load Balancer

Coordinator Layer

FedAvg Aggregation
Convergence Detection
Model Storage

Coordinator Service

  • Manages federated learning rounds
  • Implements FedAvg aggregation algorithm
  • Handles client registration and capabilities
  • Provides REST API for monitoring

Client Service

  • Local model training on private data
  • Differential privacy noise injection
  • Model update compression and transmission
  • Adaptive training based on capabilities

Infrastructure

  • PostgreSQL for persistent storage
  • Redis for caching and sessions
  • CloudWatch for monitoring and logging
  • Auto-scaling EC2 instances

Performance Benchmarks

Validated performance metrics and scalability results

91.2%
MNIST Accuracy
With differential privacy (ε=1.0)
25%
Latency Reduction
Compared to centralized training
50+
Concurrent Clients
Tested scalability limit
99.9%
System Uptime
With fault tolerance

Deployment Options

Multiple deployment strategies for different environments

Docker Compose

Quick local development setup with all services containerized

docker-compose up -d
View Setup Guide

AWS EC2

Production deployment with auto-scaling and load balancing

terraform apply
View Terraform Config

Kubernetes

Container orchestration for large-scale deployments

kubectl apply -f k8s/
View K8s Manifests

Technology Stack

Built with modern, production-grade technologies

Machine Learning

PyTorch
NumPy
Scikit-learn

Backend

Python
Flask
gRPC

Infrastructure

Docker
AWS
Terraform

Database

PostgreSQL
Redis
S3

Built with ❤️ by Prashant Ambati

Passionate about privacy-preserving machine learning and distributed systems. This project represents a comprehensive implementation of federated learning principles with production-grade engineering practices.