Lianyin Jia

Retrieving similar documents serves as a fundamental building block for numerous information retrieval applications. Existing symmetric-difference based exact similarity search algorithm generates excessively large key bounds, resulting in reduced efficiency. To address this issue, we introduce a...

Spatial range queries play a crucial role in spatial information retrieval. Existing Z-order curve based algorithms suffer from accessing a large number of invalid points outside the query region. To address this challenge, we design a simple yet efficient Z-order curve based learned index, ZPI....