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1. 北京航空航天大学软件开发环境国家重点实验室,北京 100191
2. 北京航空航天大学计算机学院,北京 100191
3. 北京航空航天大学未来区块链与隐私计算高精尖创新中心,北京 100191
Online First:2023-07,
Published:15 July 2023
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Yexuan SHI, Yongxin TONG, Hao ZHOU, et al. Cross trust domain federated k-dominant skyline query processing[J]. Big data research, 2023, 9(4): 32-43.
Yexuan SHI, Yongxin TONG, Hao ZHOU, et al. Cross trust domain federated k-dominant skyline query processing[J]. Big data research, 2023, 9(4): 32-43. DOI: 10.11959/j.issn.2096-0271.2023047.
k-支配Skyline查询是一种主流的Skyline查询变种,其在多目标决策与推荐领域有着广泛的应用。随着这些应用规模不断扩大,在由多个参与方组成的数据联邦中进行跨域k-支配Skyline查询的需求日益旺盛。然而,由于数据联邦中的参与方之间彼此不互信,进行跨信任域的查询计算需引入大量安全操作,效率较低。为此提出了一种基于跨域隐私向量聚合的算法,从而实现高效的联邦k-支配Skyline查询,并运用一种密文压缩技术进一步优化查询效率,最后通过充分的实验验证了所提方案的优越性。
k-dominant skyline is a prevailing skyline query which has widespread applications in multi-criteria decision making and recommendation.As these applications continuously scale up
there is an increasing demand to support k-dominant skyline over a data federation which consists of multiple data silos
each holding disjoint columns of the entire dataset.Yet it is challenging to support k-dominant skyline over a data federation.This is because strict security constraints are often imposed to query processing over data federations
whereas naively adopting security techniques leads to unacceptably inefficient queries.In this paper
we presented an efficient and secure k-dominant skyline for a data federation.Specifically
we devised a novel private vector aggregation-based solution with ciphertext compressionbased optimization for efficient k-dominant skyline query processing while providing security guarantees.Extensive evaluations on both synthetic and real datasets showed the superiority of our method.
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