4 papers · 1 filter
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…
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…
A Distributed Solution for Efficient K Shortest Paths Computation over Dynamic Road Networks
Ziqiang Yu, Xiaohui Yu, Nick Koudas +2
The problem of identifying the k-shortest paths KSPs for short in a dynamic road network is essential to many location-based services. Road networks are dynamic in the sense that t…
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.…