Çetin Kaya Koç

SOCT: Secure Outsourcing Computation Toolkit Using Threshold ElGamal Algorithm

2025 · IEEE Transactions on Cloud Computing

Cloud computing offers inexpensive and scalable solutions for data processing, however privacy concerns often hinder the outsourcing of sensitive information. Homomorphic encryption provides a promising approach for secure computations over encrypted data. However, existing models …

Adaptive imbalanced node classification graph contrastive learning

2025 · Neurocomputing

Graph Contrastive Learning (GCL) is a powerful self-supervised technique for learning node and graph representations. However, real-world graph data often exhibit imbalanced class distributions, which pose significant challenges to GCL’s effectiveness. Our experiments show that …