Efficient processing of spatial joins using R-trees
SIGMOD '93 Proceedings of the 1993 ACM SIGMOD international conference on Management of data
Partition based spatial-merge join
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
Modeling and Querying Moving Objects
ICDE '97 Proceedings of the Thirteenth International Conference on Data Engineering
Efficient Computation of Spatial Joins
Proceedings of the Ninth International Conference on Data Engineering
Spatial Joins Using R-trees: Breadth-First Traversal with Global Optimizations
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
Scalable Sweeping-Based Spatial Join
VLDB '98 Proceedings of the 24rd International Conference on Very Large Data Bases
A New Algorithm for Processing Joins Using the Multilevel Grid File
Proceedings of the 4th International Conference on Database Systems for Advanced Applications (DASFAA)
Data Partitioning for Parallel Spatial Join Processing
SSD '97 Proceedings of the 5th International Symposium on Advances in Spatial Databases
K-Nearest Neighbor Search for Moving Query Point
SSTD '01 Proceedings of the 7th International Symposium on Advances in Spatial and Temporal Databases
Data Redundancy and Duplicate Detection in Spatial Join Processing
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Monitoring k-Nearest Neighbor Queries over Moving Objects
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
Conceptual partitioning: an efficient method for continuous nearest neighbor monitoring
Proceedings of the 2005 ACM SIGMOD international conference on Management of data
Mining Frequent Spatio-Temporal Sequential Patterns
ICDM '05 Proceedings of the Fifth IEEE International Conference on Data Mining
ACM Transactions on Database Systems (TODS)
Trajectory clustering: a partition-and-group framework
Proceedings of the 2007 ACM SIGMOD international conference on Management of data
Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining
Continuous nearest neighbor search
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
A model for enriching trajectories with semantic geographical information
Proceedings of the 15th annual ACM international symposium on Advances in geographic information systems
Discovery of convoys in trajectory databases
Proceedings of the VLDB Endowment
Mining user similarity based on location history
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
Convoy Queries in Spatio-Temporal Databases
ICDE '08 Proceedings of the 2008 IEEE 24th International Conference on Data Engineering
On trip planning queries in spatial databases
SSTD'05 Proceedings of the 9th international conference on Advances in Spatial and Temporal Databases
On discovering moving clusters in spatio-temporal data
SSTD'05 Proceedings of the 9th international conference on Advances in Spatial and Temporal Databases
Activity identification from GPS trajectories using spatial temporal POIs' attractiveness
Proceedings of the 2nd ACM SIGSPATIAL International Workshop on Location Based Social Networks
SeMiTri: a framework for semantic annotation of heterogeneous trajectories
Proceedings of the 14th International Conference on Extending Database Technology
Storing routes in socio-spatial networks and supporting social-based route recommendation
Proceedings of the 3rd ACM SIGSPATIAL International Workshop on Location-Based Social Networks
Towards trajectory-based experience sharing in a city
Proceedings of the 3rd ACM SIGSPATIAL International Workshop on Location-Based Social Networks
Semantic trajectories: Mobility data computation and annotation
ACM Transactions on Intelligent Systems and Technology (TIST) - Special Sections on Paraphrasing; Intelligent Systems for Socially Aware Computing; Social Computing, Behavioral-Cultural Modeling, and Prediction
Semantic trajectories modeling and analysis
ACM Computing Surveys (CSUR)
Inferring human activities from GPS tracks
Proceedings of the 2nd ACM SIGKDD International Workshop on Urban Computing
An effectiveness study on trajectory similarity measures
ADC '13 Proceedings of the Twenty-Fourth Australasian Database Conference - Volume 137
Efficient location aware intrusion detection to protect mobile devices
Personal and Ubiquitous Computing
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People's activity sequences such as eat at a restaurant after 2 hours of shopping, contains rich semantic information. This information can be explored for a broad range of applications and services. However, it is impractical to ask a large number of people to record their daily activities. As the increasing popularity of GPS-enabled mobile devices, a huge amount of trajectories which show people's movement behaviors have been acquiring. The natural link between activities and traveling motivates us to investigate a novel approach to automatically extract sequences of activities from large set of trajectory data. Intuitively, activities can only happen when trajectory is geographically near for a proper period of time for these activities, such as 30 minutes for dining in a restaurant. In this work, the concepts influence and influence duration are proposed to capture the intuition. We also propose two algorithms to join large set of trajectories with activities with duplication reuse techniques. We conduct comprehensive empirical studies to evaluate the two algorithms with synthetic data set generated from real world POIs and road networks.