An incremental access method for ViewCache: concept, algorithms, and cost analysis
ACM Transactions on Database Systems (TODS)
Continuous queries over append-only databases
SIGMOD '92 Proceedings of the 1992 ACM SIGMOD international conference on Management of data
A design framework for Internet-scale event observation and notification
ESEC '97/FSE-5 Proceedings of the 6th European SOFTWARE ENGINEERING conference held jointly with the 5th ACM SIGSOFT international symposium on Foundations of software engineering
Multidimensional access methods
ACM Computing Surveys (CSUR)
Spatio-temporal composition and indexing for large multimedia applications
Multimedia Systems
PODS '99 Proceedings of the eighteenth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
ACM Computing Surveys (CSUR)
Updating and Querying Databases that Track Mobile Units
Distributed and Parallel Databases - Special issue on mobile data management and applications
A data model and data structures for moving objects databases
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
NiagaraCQ: a scalable continuous query system for Internet databases
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
A foundation for representing and querying moving objects
ACM Transactions on Database Systems (TODS)
Integrating temporal, real-time, an active databases
ACM SIGMOD Record
Temporal Triggers in Active Databases
IEEE Transactions on Knowledge and Data Engineering
Modeling and Querying Moving Objects
ICDE '97 Proceedings of the Thirteenth International Conference on Data Engineering
Novel Approaches in Query Processing for Moving Object Trajectories
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
Incremental Maintenance of Externally Materialized Views
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Specifications for Efficient Indexing in Spatiotemporal Databases
SSDBM '98 Proceedings of the 10th International Conference on Scientific and Statistical Database Management
Research Issues in Spatio-temporal Database Systems
SSD '99 Proceedings of the 6th International Symposium on Advances in Spatial Databases
Requirements of Traffic Telematics to Spatial Databases
SSD '99 Proceedings of the 6th International Symposium on Advances in Spatial Databases
Generating Network-Based Moving Objects
SSDBM '00 Proceedings of the 12th International Conference on Scientific and Statistical Database Management
Web architectures for scalable moving object servers
Proceedings of the 10th ACM international symposium on Advances in geographic information systems
Indexing spatiotemporal archives
The VLDB Journal — The International Journal on Very Large Data Bases
A web-enabled extension of a spatio-temporal DBMS
Proceedings of the 15th annual ACM international symposium on Advances in geographic information systems
Hi-index | 0.00 |
The development of spatiotemporal database systems is primarily motivated by applications tracking and presenting mobile objects. Another important trend is the visualization and processing of spatial data using XML-based representations. Such representations will be required by Internet applications as well as by location-based mobile applications. In this paper, an architecture for supporting queries on XML-represented moving objects is presented. An important requirement of applications using such an architecture is to be kept informed about new, relocated, or removed objects fulfilling a given query condition. Consequently, the spatiotemporal database system must trigger its clients by transmitting the required information about the relevant updates. Such queries are called continuous queries. For processing continuous queries, we have to reduce the volume and frequency of transmissions to the clients. In order to achieve this objective, parameters are defined, which model technical restrictions as well as the interest of a client in a distinct update operation. However, delaying or even not transmitting update operations to a client may decrease the quality of the query result. Therefore, measures for the quality of a query result are required.