In this paper, we propose an efficient and scalable query processing framework for continuous spatial queries (range and k-nearest-neighbor queries) in mobile peer-to-peer …
D Zhang, CY Chow, Q Li, X Zhang, Y Xu - International Symposium on …, 2011 - Springer
Abstract K-nearest-neighbor (k-NN) queries have been widely studied in time-independent and time-dependent spatial networks. In this paper, we focus on k-NN queries in time …
JL Huang, CC Huang - IEEE Transactions on Knowledge and …, 2011 - ieeexplore.ieee.org
Caching valid regions of spatial queries at mobile clients is effective in reducing the number of queries submitted by mobile clients and query load on the server. However, mobile clients …
AA Hossain, A Hossain, HK Yoo… - 2011 14th IEEE …, 2011 - ieeexplore.ieee.org
The proliferations of position identifying devices become increasing privacy threat in location- based services (LBSs). It is very difficult to avoid the privacy threat of a user in processing …
Y Lee, SJ Lee, B Kim, J Kim, Y Rhee… - IEEE Transactions on …, 2011 - ieeexplore.ieee.org
In this paper, we introduce Activity Travel Pattern (ATP) monitoring in a large-scale city environment. ATP represents where city residents and vehicles stay and how they travel …
Z Li, Y Gao, Y Lu - … on System science, Engineering design and …, 2011 - ieeexplore.ieee.org
In this paper, we study the Continuous Obstructed Range (COR) queries in spatio-temporal databases, which consider the impact of obstacles on the distance between objects. Given a …
GP Roh, S Hwang - Proceedings of the 14th International Conference on …, 2011 - dl.acm.org
With the advent of ubiquitous computing, we can easily collect large scale trajectory data from moving vehicles. This paper presents TPM (Trajectory Pattern Miner), a software aimed …