activity
20202025
most citedODIN: Object Density Aware Index for CkNN Queries over Moving Objects on Road Networks

4 citations · 11 across the 6 of their papers we have counts for

collaborators

6 papers

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…

cs.DB2023★ 2 cited

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…

cs.DB2023★ 4 cited

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.DB2020★ 4 cited

Distributed Processing of k Shortest Path Queries over Dynamic Road Networks

Ziqiang Yu, Xiaohui Yu, Nick Koudas +4

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…

cs.DB2020★ 1 cited

Evaluating Temporal Queries Over Video Feeds

Yueting Chen, Xiaohui Yu, Nick Koudas

Recent advances in Computer Vision and Deep Learning made possible the efficient extraction of a schema from frames of streaming video. As such, a stream of objects and their assoc…