Publications (13)
Distributed Processing of kNN Queries over Moving Objects on Dynamic Road Networks
Mingjin Tao, Kailin Jiao, Yawen Li +2
The k Nearest Neighbor (kNN) query over moving objects on road networks is essential for location-based services. Recently, this problem has been studied under road networks with d…
BRkNN-light: Batch Processing of Reverse k-Nearest Neighbor Queries for Moving Objects on Road Networks
Anbang Song, Ziqiang Yu, Wei Liu +2
The Reverse -Nearest Neighbor (RNN) query over moving objects on road networks seeks to find all moving objects that consider the specified query point as one of their ne…
Utilizing 3D Fast Spin Echo Anatomical Imaging to Reduce the Number of Contrast Preparations in Quantification of Knee Cartilage Using Learning-Based Methods
Junru Zhong, Chaoxing Huang, Ziqiang Yu +7
Purpose: To propose and evaluate an accelerated quantification method that combines -weighted fast spin echo (FSE) images and proton density (PD)-weighted anatom…
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…
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…
Quantitative Macromolecular Proton Fraction Imaging using Pulsed Spin-Lock
Qianxue Shan, Ziqiang Yu, Baiyan Jiang +5
Purpose: Recent studies have shown that spin-lock MRI can simplify quantitative magnetization transfer (MT) by eliminating its dependency on water pool parameters, removing the nee…
Dipolar order mapping based on spin-lock magnetic resonance imaging
Zijian Gao, Qianxue Shan, Ziqin Zhou +2
Purpose: Inhomogeneous magnetization transfer (ihMT) effect reflects dipolar order with a dipolar relaxation time (), specific to motion-restricted macromolecules. We aim 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.…
Time Sensitive Multiple POIs Route Planning on Bus Networks
Simu Liu, Kailin Jiao, Junping Du +5
This work addresses a route planning problem constrained by a bus road network that includes the schedules of all buses. Given a query with a starting bus stop and a set of Points…
Orientation independent quantification of macromolecular proton fraction in tissues with suppression of residual dipolar coupling
Zijian Gao, Ziqiang Yu, Ziqin Zhou +4
Quantitative magnetization transfer (MT) imaging enables non-invasive characterization of the macromolecular environment of tissues. However, recent work has highlighted that the q…
Chemical Shift Encoding based Double Bonds Quantification in Triglycerides using Deep Image Prior
Chaoxing Huang, Ziqiang Yu, Zijian Gao +5
Fatty acid can potentially serve as biomarker for evaluating metabolic disorder and inflammation condition, and quantifying the double bonds is the key for revealing fatty acid inf…
Distributed processing of continuous range queries over moving objects
Hui Zhu, Ziqiang Yu
Monitoring range queries over moving objects is essential to extensive location-based services. The challenge faced with these location-based services is having to process numerous…
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…