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cs.DB2026
Efficient Privacy-Preserving Range Filtered Approximate Nearest Neighbor Search
Haoyu Wang, Yandi Zhang, Jiadong Xie +4
Range-filtered approximate nearest neighbor search (RFANNS) is an important primitive for vector databases; it retrieves vectors that are similar to a query and satisfy a numerical…
cs.DB2026
RISK: Efficiently processing rich spatial-keyword queries on encrypted geo-textual data
Zhen Lv, Cong Cao, Hongwei Huo +4
Symmetric searchable encryption (SSE) for geo-textual data has attracted significant attention. However, existing schemes rely on task-specific, incompatible indices for isolated s…
cs.AI2026
TKGB: A Comprehensive Benchmark for Temporal Knowledge Graph Forecasting
Zhang Jiasheng, Jiasheng Zhang, Zhengpin Li +9
Temporal knowledge graph (TKG) forecasting has advanced remarkably in recent years. Yet we found existing benchmarks inadvertently introduce a shortcut: For a subset of test querie…