Hu-Fu: A Data Federation System for Secure Spatial Queries
Summary: Hu-Fu is the first data federation system for secure spatial queries, enabling privacy-preserving analytics over cross-owner urban data. It achieves high usability and efficiency by decomposing queries into plaintext operators and minimizing secure operators, demonstrated on cross-company taxi data. (summarized by gpt-5-nano on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Xuchen Pan
- 2. Yongxin Tong
- 3. Chunbo Xue
- 4. Zimu Zhou
- 5. Junping Du
- 6. Yuxiang Zeng
- 7. Yexuan Shi
- 8. Xiaofei Zhang
- 9. Lei Chen
- 10. Yi Xu
- 11. Ke Xu
- 12. Weifeng Lv
Incoming Citations (Sorted by Pagerank)
Showing 2 of 2 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 7,001 | FedSQ: A Secure System for Federated Vector Similarity Queries | 2024 | VLDB | 4.8613015e-05 |
| 11,223 | TEE-based General-purpose Computational Backend for Secure Delegated Data Processing | 2023 | SIGMOD | 4.1905499e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 3 of 3 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 166 | Federated Database Systems for Managing Distributed, Heterogeneous, and Autonomous Databases | 1991 | VLDB | 0.00039467886 |
| 542 | Apache Calcite: A Foundational Framework for Optimized Query Processing Over Heterogeneous Data Sources | 2018 | SIGMOD | 0.00020522627 |
| 5,759 | Hu-Fu: Efficient and Secure Spatial Queries over Data Federation | 2022 | VLDB | 5.3372523e-05 |
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Semantically Similar Papers
| Overall Rank | Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 5,720 | An Approach For Building Secure Database Federations | 1994 | VLDB | 5.3539689e-05 |
| 7,784 | Authenticated Online Data Integration Services | 2015 | SIGMOD | 4.6472451e-05 |
| 1,199 | Hadoop-GIS: A High Performance Spatial Data Warehousing System over MapReduce | 2013 | VLDB | 0.00013358019 |
| 11,951 | A Demonstration of AQWA: Adaptive Query-Workload-Aware Partitioning of Big Spatial Data | 2015 | VLDB | 4.1905499e-05 |
| 7,691 | High-Performance Geospatial Analytics in HyPerSpace | 2016 | SIGMOD | 4.6718272e-05 |
| 1,291 | SMCQL: Secure Querying for Federated Databases | 2017 | VLDB | 0.00012771034 |
| 9,577 | Querying Shared Data with Security Heterogeneity | 2020 | SIGMOD | 4.3206631e-05 |
| 7,001 | FedSQ: A Secure System for Federated Vector Similarity Queries | 2024 | VLDB | 4.8613015e-05 |
| 10,410 | U-DPAP: Utility-aware Efficient Range Counting on Privacy-preserving Spatial Data Federation | 2025 | SIGMOD | 4.1905499e-05 |
| 5,759 | Hu-Fu: Efficient and Secure Spatial Queries over Data Federation | 2022 | VLDB | 5.3372523e-05 |