Location-based spatial queries
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
SINA: scalable incremental processing of continuous queries in spatio-temporal databases
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Monitoring k-Nearest Neighbor Queries over Moving Objects
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
Information dissemination via wireless broadcast
Communications of the ACM - Adaptive complex enterprises
Continuous K-nearest neighbor queries for continuously moving points with updates
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
Research in mobile database query optimization and processing
Mobile Information Systems
Supporting user mobility through cache relocation
Mobile Information Systems
Alternative data storage solution for mobile messaging services
Mobile Information Systems
On Mining Movement Pattern from Mobile Users
International Journal of Distributed Sensor Networks - Heterogenous Wireless Ad Hoc and Sensor Networks
A topology-based semantic location model for indoor applications
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
Toward context and preference-aware location-based services
Proceedings of the Eighth ACM International Workshop on Data Engineering for Wireless and Mobile Access
Continuous range search based on network Voronoi diagram
International Journal of Grid and Utility Computing
G2G: location-aware mobile social networking with applications in personalized recommender systems
Journal of Mobile Multimedia
Efficient evaluation of k-NN queries using spatial mashups
SSTD'11 Proceedings of the 12th international conference on Advances in spatial and temporal databases
Mobile user data mining: mining relationship patterns
EUC'05 Proceedings of the 2005 international conference on Embedded and Ubiquitous Computing
On mining 2 step walking pattern from mobile users
ICCSA'06 Proceedings of the 6th international conference on Computational Science and Its Applications - Volume Part I
Algorithms for continuous location-dependent and context-aware queries in indoor environments
Proceedings of the 20th International Conference on Advances in Geographic Information Systems
The Impact of Zoning Concept on Data-Flow Management within LBS System Components
International Journal of Handheld Computing Research
SMashQ: spatial mashup framework for k-NN queries in time-dependent road networks
Distributed and Parallel Databases
Context-aware modelling of continuous location-dependent queries in indoor environments
Journal of Ambient Intelligence and Smart Environments - Context Awareness
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As location-based services (LBSs) grow to support a larger and larger user community and to provide more and more intelligent services, they must face a few fundamental challenges, including the ability to not only accept coordinates as location data but also manipulate high-level semantics of the physical environment. They must also handle a large amount of location updates and client requests and be able to scale up as their coverage increases. This paper describes some of our research in location modeling and updates and techniques for enhancing system performance by caching and batch processing. It can be observed that the challenges facing LBSs share a lot of similarity with traditional database research (i.e., data modeling, indexing, caching, and query optimization) but the fact that LBSs are built into the physical space and the opportunity to exploit spatial locality in system design shed new light on LBS research.