2 citations · 2 across the 8 of their papers we have counts for
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Unified and Efficient Approach for Multi-Vector Similarity Search
Binhan Yang, Yuxiang Zeng, Hengxin Zhang +4
Multi-Vector Similarity Search is essential for fine-grained semantic retrieval in many real-world applications, offering richer representations than traditional single-vector para…
Distance Comparison Operations Are Not Silver Bullets in Vector Similarity Search: A Benchmark Study on Their Merits and Limits
Zhuanglin Zheng, Yuxiang Zeng, Chenchen Liu +3
Distance Comparison Operations (DCOs), which decide whether the distance between a data vector and a query is within a threshold, are a critical performance bottleneck in vector si…
How Good Are Multi-dimensional Learned Indices? An Experimental Survey
Qiyu Liu, Maocheng Li, Yuxiang Zeng +2
Efficient indexing is fundamental for multi-dimensional data management and analytics. An emerging tendency is to directly learn the storage layout of multi-dimensional data by sim…
Efficient and Private Federated Trajectory Matching
Yuxiang Wang, Yuxiang Zeng, Yi Xu +2
Federated Trajectory Matching (FTM) is gaining increasing importance in big trajectory data analytics, supporting diverse applications such as public health, law enforcement, and e…
Querying Shortest Path on Large Time-Dependent Road Networks with Shortcuts
Zengyang Gong, Yuxiang Zeng, Lei Chen
Querying the shortest path between two vertexes is a fundamental operation in a variety of applications, which has been extensively studied over static road networks. However, in r…
A Fast Insertion Operator for Ridesharing over Time-Dependent Road Networks
Zengyang Gong, Yuxiang Zeng, Lei Chen
Ridesharing has become a promising travel mode recently due to the economic and social benefits. As an essential operator, "insertion operator" has been extensively studied over st…
Towards Capacity-Aware Broker Matching: From Recommendation to Assignment
Shuyue Wei, Yongxin Tong, Zimu Zhou +4
Online real estate platforms are gaining increasing popularity, where a central issue is to match brokers with clients for potential housing transactions. Mainstream platforms matc…
Efficient and Accurate Range Counting on Privacy-preserving Spatial Data Federation [Technical Report]
Maocheng Li, Yuxiang Zeng, Lei Chen
A spatial data federation is a collection of data owners (e.g., a consortium of taxi companies), and collectively it could provide better location-based services (LBS). For example…
Accurate and Efficient Trajectory-based Contact Tracing with Secure Computation and Geo-Indistinguishability
Maocheng Li, Yuxiang Zeng, Libin Zheng +2
Contact tracing has been considered as an effective measure to limit the transmission of infectious disease such as COVID-19. Trajectory-based contact tracing compares the trajecto…