Independent Researcher & CTO
Dipankar Sarkar
Computer scientist and entrepreneur specializing in machine learning and decentralized systems. ACM & IEEE member with 124+ citations. My research focuses on federated learning, privacy-preserving AI, and blockchain infrastructure, with particular emphasis on making advanced ML techniques practical and accessible.
My Research
My research lies at the intersection of machine learning, distributed systems, and decentralized technologies, with a focus on developing practical solutions that bridge theoretical advances with real-world applications.
Machine Learning & Privacy-Preserving AI — In federated learning, I've pioneered techniques for handling imbalanced data classification (Fed-Focal Loss) and optimizing communication efficiency (CatFedAvg), making distributed machine learning more practical for real-world deployments. My work addresses fundamental challenges in privacy-preserving AI: how to train powerful models across distributed data without compromising individual privacy or model performance. Current research explores federated learning for Web3 applications, deepfake detection networks, and copyright-compliant generative AI systems.
Blockchain & Decentralized Systems — My Web3 research focuses on infrastructure-level innovations: developing protocols for Decentralized Physical Infrastructure Networks (DePIN), designing mechanisms for fair value distribution and MEV mitigation in Ethereum, and solving atomic composability challenges in multi-rollup environments. Through projects like Tesseract, FairFlow, and generalized DePIN frameworks, I work to make decentralized systems more scalable, fair, and practical.
With 25+ provisional patent applications and publications in leading venues, I actively collaborate on projects that advance both ML and blockchain technology while maintaining a focus on real-world applicability and ethical deployment.
Featured Publications
View all →arXiv
Navigating the Knowledge Sea: Planet-scale answer retrieval using LLMs
Dipankar Sarkar
arXiv
Viz: A QLoRA-based Copyright Marketplace for Legally Compliant Generative AI
Dipankar Sarkar
arXiv
Decentralized Deepfake Detection Blockchain Network using Dynamic Algorithm management
Dipankar Sarkar
arXiv
Generalised DePIN Protocol: A Framework for Decentralized Physical Infrastructure Networks
Dipankar Sarkar
FL-IJCAI'20
Fed-Focal Loss for imbalanced data classification in Federated Learning
Dipankar Sarkar , A Narang , S Rai
Packt Pub
Nginx 1 web server implementation cookbook
Dipankar Sarkar
Patents 25
Provisional applications filed with the Indian Patent Office
A Method and a System for Dynamically Modifying a Virtual World
A System to Generate and Dynamically Update a Virtual World Based on User Interest
A Method and System to Recommend a Navigation Path in a Virtual World
Method and System to Generate Animated Audio-Visual Content
System and Method for Partitioning a Neural Network Model for Offloading Computational Load
Method for Converting Static Graphic into Animated Graphic
Method for Dynamic Content Generation and Device Thereof
A Method and System for Partitioning a Social Network Group
Recent & Upcoming Talks
Decentralized AI: Privacy, Fairness, and the Future of Machine Learning
AI & Web3 Summit 2024
A keynote on the convergence of federated learning, blockchain, and decentralized systems for privacy-preserving AI
Building the Decentralized Data Economy: From Theory to Practice
Web3 Infrastructure Conference
How DePIN and blockchain technology are creating new models for data ownership and monetization
MEV and Fair Value Distribution in Ethereum
DeFi Security Summit
Technical workshop on Maximal Extractable Value (MEV) and designing fairer blockchain protocols
Fed-Focal Loss for Imbalanced Data Classification in Federated Learning
International Workshop on Federated Learning for User Privacy and Data Confidentiality (FL-IJCAI'20)
A presentation on applying Focal Loss to Federated Learning for handling imbalanced data classification
Recent Posts
View all →Tackling Data Imbalance in Federated Learning
How Fed-Focal Loss addresses one of the most challenging problems in distributed machine learning: handling imbalanced data across federated clients.
The AI Copyright Challenge: Building Legal Frameworks for Generative AI
As generative AI transforms content creation, we need new frameworks that respect copyright while enabling innovation. Here's how we can build them.
The MEV Problem: Why Ethereum Needs Fairer Value Distribution
Exploring Maximal Extractable Value (MEV) in Ethereum and why we need better mechanisms for fair value distribution across the ecosystem.
DePIN: The Future of Physical Infrastructure
Why Decentralized Physical Infrastructure Networks (DePIN) represent a fundamental shift in how we build and own critical infrastructure.