The R*-tree: an efficient and robust access method for points and rectangles
SIGMOD '90 Proceedings of the 1990 ACM SIGMOD international conference on Management of data
Voronoi diagrams—a survey of a fundamental geometric data structure
ACM Computing Surveys (CSUR)
Spatial tessellations: concepts and applications of Voronoi diagrams
Spatial tessellations: concepts and applications of Voronoi diagrams
SIGMOD '95 Proceedings of the 1995 ACM SIGMOD international conference on Management of data
A cost model for nearest neighbor search in high-dimensional data space
PODS '97 Proceedings of the sixteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Multidimensional access methods
ACM Computing Surveys (CSUR)
Selectivity estimation in spatial databases
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
Distance browsing in spatial databases
ACM Transactions on Database Systems (TODS)
A cost model for query processing in high dimensional data spaces
ACM Transactions on Database Systems (TODS)
Time-parameterized queries in spatio-temporal databases
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Efficient Cost Models for Spatial Queries Using R-Trees
IEEE Transactions on Knowledge and Data Engineering
VLDB '98 Proceedings of the 24rd International Conference on Very Large Data Bases
Nearest Neighbor and Reverse Nearest Neighbor Queries for Moving Objects
IDEAS '02 Proceedings of the 2002 International Symposium on Database Engineering & Applications
Continuous nearest neighbor search
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Spatial queries in dynamic environments
ACM Transactions on Database Systems (TODS)
Journal of Computer Science and Technology
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
Supporting spatial aggregation in sensor network databases
Proceedings of the 12th annual ACM international workshop on Geographic information systems
The D-Tree: An Index Structure for Planar Point Queries in Location-Based Wireless Services
IEEE Transactions on Knowledge and Data Engineering
Proactive Caching for Spatial Queries in Mobile Environments
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
Information dissemination via wireless broadcast
Communications of the ACM - Adaptive complex enterprises
A generic framework for monitoring continuous spatial queries over moving objects
Proceedings of the 2005 ACM SIGMOD international conference on Management of data
Conceptual partitioning: an efficient method for continuous nearest neighbor monitoring
Proceedings of the 2005 ACM SIGMOD international conference on Management of data
Location dependent query proxy
Proceedings of the 2005 ACM symposium on Applied computing
Efficient constraint processing for location-aware computing
Proceedings of the 6th international conference on Mobile data management
GPAC: generic and progressive processing of mobile queries over mobile data
Proceedings of the 6th international conference on Mobile data management
A Threshold-Based Algorithm for Continuous Monitoring of k Nearest Neighbors
IEEE Transactions on Knowledge and Data Engineering
Toward tighter integration of web search with a geographic information system
Proceedings of the 15th international conference on World Wide Web
Challenges in spatiotemporal stream query optimization
MobiDE '06 Proceedings of the 5th ACM international workshop on Data engineering for wireless and mobile access
Adaptive schemes for location update generation in execution location-dependent continuous queries
Journal of Systems and Software
Indexing spatiotemporal archives
The VLDB Journal — The International Journal on Very Large Data Bases
Continuous nearest neighbor monitoring in road networks
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
Incremental Processing of Continual Range Queries over Moving Objects
IEEE Transactions on Knowledge and Data Engineering
Continuous Skyline Queries for Moving Objects
IEEE Transactions on Knowledge and Data Engineering
When location-based services meet databases
Mobile Information Systems
Adaptive location constraint processing
Proceedings of the 2007 ACM SIGMOD international conference on Management of data
Reverse Nearest Neighbors Search in Ad Hoc Subspaces
IEEE Transactions on Knowledge and Data Engineering
Continuous Nearest Neighbor Queries over Sliding Windows
IEEE Transactions on Knowledge and Data Engineering
Efficient constraint processing for highly personalized location based services
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
Proximity queries in large traffic networks
Proceedings of the 15th annual ACM international symposium on Advances in geographic information systems
Approximate order-k Voronoi cells over positional streams
Proceedings of the 15th annual ACM international symposium on Advances in geographic information systems
The Bdual-Tree: indexing moving objects by space filling curves in the dual space
The VLDB Journal — The International Journal on Very Large Data Bases
A cache invalidation scheme for continuous partial match queries in mobile computing environments
Distributed and Parallel Databases
Considering a user's mobility and query patterns in location-based services
Mobility '07 Proceedings of the 4th international conference on mobile technology, applications, and systems and the 1st international symposium on Computer human interaction in mobile technology
SOLE: scalable on-line execution of continuous queries on spatio-temporal data streams
The VLDB Journal — The International Journal on Very Large Data Bases
The V*-Diagram: a query-dependent approach to moving KNN queries
Proceedings of the VLDB Endowment
Valid scope computation for location-dependent spatial query in mobile broadcast environments
Proceedings of the 17th ACM conference on Information and knowledge management
The multi-rule partial sequenced route query
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
Continuous proximity monitoring in road networks
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
An energy efficient clustering scheme of mobile sink node in wireless sensor networks
CSECS'08 Proceedings of the 7th conference on Circuits, systems, electronics, control and signal processing
Proceedings of the 3rd International Conference on Ubiquitous Information Management and Communication
Approximate voronoi cell computation on spatial data streams
The VLDB Journal — The International Journal on Very Large Data Bases
Efficient Continuous Nearest Neighbor Query in Spatial Networks Using Euclidean Restriction
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Efficient Construction of Safe Regions for Moving kNN Queries over Dynamic Datasets
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Casper*: Query processing for location services without compromising privacy
ACM Transactions on Database Systems (TODS)
Continuous density queries for moving objects
Proceedings of the Seventh ACM International Workshop on Data Engineering for Wireless and Mobile Access
Location-dependent query processing under soft real-time constraints
Mobile Information Systems
Location-dependent query processing: Where we are and where we are heading
ACM Computing Surveys (CSUR)
Dynamic prediction clustering scheme for mobile sensor node of sensor network environment
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 1
Distributed k-NN query processing for location services
SEUS'07 Proceedings of the 5th IFIP WG 10.2 international conference on Software technologies for embedded and ubiquitous systems
Circulartrip: an effective algorithm for continuous kNN queries
DASFAA'07 Proceedings of the 12th international conference on Database systems for advanced applications
Analysis and evaluation of V*-kNN: an efficient algorithm for moving kNN queries
The VLDB Journal — The International Journal on Very Large Data Bases
An Energy Efficient Middleware Architecture for Processing Spatial Alarms on Mobile Clients
Mobile Networks and Applications
A motion-aware approach for efficient evaluation of continuous queries on 3D object databases
The VLDB Journal — The International Journal on Very Large Data Bases
WISEW'03 Proceedings of the Fourth international conference on Web information systems engineering workshops
Efficient proximity detection among mobile users via self-tuning policies
Proceedings of the VLDB Endowment
All-nearest-neighbors finding based on the Hilbert curve
Expert Systems with Applications: An International Journal
Continuous nearest-neighbor search in the presence of obstacles
ACM Transactions on Database Systems (TODS)
wNeighbors: a method for finding k nearest neighbors in weighted regions
DASFAA'11 Proceedings of the 16th international conference on Database systems for advanced applications: Part II
Approximate continuous K-nearest neighbor queries for uncertain objects in road networks
WAIM'11 Proceedings of the 12th international conference on Web-age information management
Coupling or decoupling for KNN search on road networks?: a hybrid framework on user query patterns
Proceedings of the 20th ACM international conference on Information and knowledge management
Proximity queries in time-dependent traffic networks using graph embeddings
Proceedings of the 4th ACM SIGSPATIAL International Workshop on Computational Transportation Science
Towards real-time processing of monitoring continuous k-nearest neighbor queries
ISPA'06 Proceedings of the 2006 international conference on Frontiers of High Performance Computing and Networking
Presentation of dynamic maps by estimating user intentions from operation history
MMM'07 Proceedings of the 13th international conference on Multimedia Modeling - Volume Part I
Motion-Alert: automatic anomaly detection in massive moving objects
ISI'06 Proceedings of the 4th IEEE international conference on Intelligence and Security Informatics
A safe-exit approach for efficient network-based moving range queries
Data & Knowledge Engineering
Continuous reverse k nearest neighbors queries in Euclidean space and in spatial networks
The VLDB Journal — The International Journal on Very Large Data Bases
Efficient algorithms to monitor continuous constrained k nearest neighbor queries
DASFAA'10 Proceedings of the 15th international conference on Database Systems for Advanced Applications - Volume Part I
Continuous query processing in spatio-temporal databases
EDBT'04 Proceedings of the 2004 international conference on Current Trends in Database Technology
Evaluation of a dynamic tree structure for indexing query regions on streaming geospatial data
SSTD'05 Proceedings of the 9th international conference on Advances in Spatial and Temporal Databases
Semantic caching for multiresolution spatial query processing in mobile environments
SSTD'05 Proceedings of the 9th international conference on Advances in Spatial and Temporal Databases
Incremental rank updates for moving query points
GIScience'06 Proceedings of the 4th international conference on Geographic Information Science
Distributed continuous range query processing on moving objects
DEXA'06 Proceedings of the 17th international conference on Database and Expert Systems Applications
ER'05 Proceedings of the 24th international conference on Perspectives in Conceptual Modeling
Trajectory-Based presentation of heterogeneous spatio-temporal content
W2GIS'05 Proceedings of the 5th international conference on Web and Wireless Geographical Information Systems
Probabilistic Voronoi diagrams for probabilistic moving nearest neighbor queries
Data & Knowledge Engineering
Indexing network voronoi diagrams
DASFAA'12 Proceedings of the 17th international conference on Database Systems for Advanced Applications - Volume Part I
An efficient path nearest neighbor query processing scheme for location based services
DASFAA'12 Proceedings of the 17th international conference on Database Systems for Advanced Applications
Leveraging computation sharing and parallel processing in location-dependent query processing
The Journal of Supercomputing
Evaluating trajectory queries over imprecise location data
SSDBM'12 Proceedings of the 24th international conference on Scientific and Statistical Database Management
Efficiently processing snapshot and continuous reverse k nearest neighbors queries
The VLDB Journal — The International Journal on Very Large Data Bases
Efficient safe-region construction for moving top-K spatial keyword queries
Proceedings of the 21st ACM international conference on Information and knowledge management
Authentication of moving range queries
Proceedings of the 21st ACM international conference on Information and knowledge management
A generic data model for moving objects
Geoinformatica
Location-Aware Caching for Semantic-Based Image Queries in Mobile AD HOC Networks
International Journal of Multimedia Data Engineering & Management
User-Centric Similarity and Proximity Measures for Spatial Personalization
International Journal of Data Warehousing and Mining
Moving spatial keyword queries: Formulation, methods, and analysis
ACM Transactions on Database Systems (TODS)
Computing immutable regions for subspace top-k queries
Proceedings of the VLDB Endowment
A safe zone based approach for monitoring moving skyline queries
Proceedings of the 16th International Conference on Extending Database Technology
UV-diagram: a voronoi diagram for uncertain spatial databases
The VLDB Journal — The International Journal on Very Large Data Bases
Spatial-temporal query homogeneity for KNN object search on road networks
Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
CALBA: capacity-aware location-based advertising in temporary social networks
Proceedings of the 21st ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Context-aware modelling of continuous location-dependent queries in indoor environments
Journal of Ambient Intelligence and Smart Environments - Context Awareness
A safe exit algorithm for continuous nearest neighbor monitoring in road networks
Mobile Information Systems
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In this paper we propose an approach that enables mobile clients to determine the validity of previous queries based on their current locations. In order to make this possible, the server returns in addition to the query result, a validity region around the client's location within which the result remains the same. We focus on two of the most common spatial query types, namely nearest neighbor and window queries, define the validity region in each case and propose the corresponding query processing algorithms. In addition, we provide analytical models for estimating the expected size of the validity region. Our techniques can significantly reduce the number of queries issued to the server, while introducing minimal computational and network overhead compared to traditional spatial queries.