3 papers
cs.DB2025
ODIN: Object Density Aware Index for CkNN Queries over Moving Objects on Road Networks
Ziqiang Yu, Xiaohui Yu, Tao Zhou +3
We study the problem of processing continuous k nearest neighbor (CkNN) queries over moving objects on road networks, which is an essential operation in a variety of applications.…
cs.DB2025
Flexible Keyword-Aware Top- Route Search
Ziqiang Yu, Xiaohui Yu, Yueting Chen +3
With the rise of Large Language Models (LLMs), tourists increasingly use it for route planning by entering keywords for attractions, instead of relying on traditional manual map se…
cs.DB2025
Reliable Text-to-SQL with Adaptive Abstention
Kaiwen Chen, Yueting Chen, Xiaohui Yu +1
Large language models (LLMs) have revolutionized natural language interfaces for databases, particularly in text-to-SQL conversion. However, current approaches often generate unrel…