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InfoResearchPeer-reviewed
(α, β)-Core Query on Structured Encrypted Bipartite Graph
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Summary
The paper proposes a privacy-preserving approach for (α, β)-core queries on bipartite graphs that considers both node and edge attributes. It builds index tables and generates the adjacency matrix in real time, uses a structured encryption scheme based on symmetric homomorphic encryption, and supports (α, β)-weighted and attribute-weighted community queries. On real datasets, ciphertext queries incur overheads of 0.49X to 4.89X for weighted community queries and 0.74X to 4.52X for attribute weighted community queries compared to plaintext.