ACM Transactions on Database Systems (TODS)
Dynamics-aware similarity of moving objects trajectories
Proceedings of the 15th annual ACM international symposium on Advances in geographic information systems
Cellular Census: Explorations in Urban Data Collection
IEEE Pervasive Computing
Nearest Neighbor Search on Moving Object Trajectories in Secondo
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Relational query coprocessing on graphics processors
ACM Transactions on Database Systems (TODS)
Exploring movement-similarity analysis of moving objects
SIGSPATIAL Special
Design and evaluation of trajectory join algorithms
Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
BerlinMOD: a benchmark for moving object databases
The VLDB Journal — The International Journal on Very Large Data Bases
Location-dependent query processing: Where we are and where we are heading
ACM Computing Surveys (CSUR)
Accelerating SQL database operations on a GPU with CUDA
Proceedings of the 3rd Workshop on General-Purpose Computation on Graphics Processing Units
Understanding throughput-oriented architectures
Communications of the ACM
Computer Architecture, Fifth Edition: A Quantitative Approach
Computer Architecture, Fifth Edition: A Quantitative Approach
Unveiling the complexity of human mobility by querying and mining massive trajectory data
The VLDB Journal — The International Journal on Very Large Data Bases
Similarity search on a large collection of point sets
Proceedings of the 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Fast GPU-based locality sensitive hashing for k-nearest neighbor computation
Proceedings of the 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Real-Time Urban Monitoring Using Cell Phones: A Case Study in Rome
IEEE Transactions on Intelligent Transportation Systems
Similarity in (spatial, temporal and) spatio-temporal datasets
Proceedings of the 15th International Conference on Extending Database Technology
Bi-level Locality Sensitive Hashing for k-Nearest Neighbor Computation
ICDE '12 Proceedings of the 2012 IEEE 28th International Conference on Data Engineering
Combining CPU and GPU architectures for fast similarity search
Distributed and Parallel Databases
U2SOD-DB: a database system to manage large-scale ubiquitous urban sensing origin-destination data
Proceedings of the ACM SIGKDD International Workshop on Urban Computing
CudaGIS: report on the design and realization of a massive data parallel GIS on GPUs
Proceedings of the Third ACM SIGSPATIAL International Workshop on GeoStreaming
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Volumes of GPS recorded trajectory data in ubiquitous urban sensing applications are increasing fast. Many trajectory queries are both I/O and computing intensive. In this study, we propose to develop the U2STRA prototype system to efficiently manage large-scale GPS trajectory data using General Purpose computing on Graphics Processing Units (GPGPU) technologies. Towards this end, we have developed a trajectory data layout schema using simple in-memory array structures which is not only flexible for data accesses but also cache friendly. We have further developed an end-to-end trajectory similarity query processing technique on GPUs. Our experiments on two publically available large trajectory datasets (GeoLife and T-Drive) have demonstrated the efficiency of massively data parallel GPGPU computing. An impressive 87X speedup for spatial aggregations of GPS point locations and 25-40X speedups for trajectory queries over serial CPU implementations have been achieved. The U2STRA system has also been integrated with commercial desktop and Web-based GIS systems and spatial databases for visual exploration purposes.