An extensible notation for spatiotemporal index queries
ACM SIGMOD Record
Multidimensional access methods
ACM Computing Surveys (CSUR)
Comparison of access methods for time-evolving data
ACM Computing Surveys (CSUR)
Filtering algorithms and implementation for very fast publish/subscribe systems
SIGMOD '01 Proceedings of the 2001 ACM SIGMOD international conference on Management of data
ACM Computing Surveys (CSUR)
The TSQL2 Temporal Query Language
The TSQL2 Temporal Query Language
Multidimensional data modeling for location-based services
Proceedings of the 10th ACM international symposium on Advances in geographic information systems
Moving Objects Databases: Issues and Solutions
SSDBM '98 Proceedings of the 10th International Conference on Scientific and Statistical Database Management
Pre-aggregation in Spatial Data Warehouses
SSTD '01 Proceedings of the 7th International Symposium on Advances in Spatial and Temporal Databases
Subject space: a state-persistent model for publish/subscribe systems
CASCON '02 Proceedings of the 2002 conference of the Centre for Advanced Studies on Collaborative research
Event matching in symmetric subscription systems
CASCON '02 Proceedings of the 2002 conference of the Centre for Advanced Studies on Collaborative research
Middleware models for location-based services: a survey
Proceedings of the 2nd international workshop on Agent-oriented software engineering challenges for ubiquitous and pervasive computing
LBS convergence agent for interoperability between LBS platforms
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 1
Semantic LBS: ontological approach for enhancing interoperability in location based services
OTM'06 Proceedings of the 2006 international conference on On the Move to Meaningful Internet Systems: AWeSOMe, CAMS, COMINF, IS, KSinBIT, MIOS-CIAO, MONET - Volume Part I
A content-based publish/subscribe matching algorithm for 2d spatial objects
Middleware'11 Proceedings of the 12th ACM/IFIP/USENIX international conference on Middleware
A content-based publish/subscribe matching algorithm for 2D spatial objects
Proceedings of the 12th International Middleware Conference
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The advance in wireless networks and in positioning systems has led to the development of a new generation of mobile applications: location-based services (LBS). LBS offer highly personalized services to users of mobile devices such as telephones, pagers, and PDAs (mobile users) based on their locations, user profiles and context information. The publish/subscribe paradigm is an information dissemination model for loosely-coupled distributed applications, and is appropriate for the implementation of LBS. However, existing publish/subscribe data models and algorithms have limitations when applied to LBS. In this paper, we show how Subject Spaces -- a state persistent publish/subscribe model -- can be used to model LBS and overcome the limitations of traditional publish/subscribe systems.