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Frequent spatio-temporal patterns in trajectory data warehouses

Published: 08 March 2009 Publication History

Abstract

In this paper we present an approach for storing and aggregating spatio-temporal patterns by using a Trajectory Data Warehouse (TDW). In particular, our aim is to allow the analysts to quickly evaluate frequent patterns mined from trajectories of moving objects occurring in a specific spatial zone and during a given temporal interval.
We resort to a TDW, based on a data cube model, having spatial and temporal dimensions, discretized according to a hierarchy of regular grids, and whose facts are sets of trajectories which intersect the spatio-temporal cells of the cube. The idea is to enrich such a TDW with a new measure: frequent patterns obtained from a data-mining process on trajectories. As a consequence these patterns can be analysed by the user at various levels of granularity by means of OLAP queries.
The research issues discussed in this paper are (1) the extraction/mining of the patterns to be stored in each cell, which requires an adequate projection phase of trajectories before mining; (2) the spatio-temporal aggregation of patterns to answer roll-up queries, which poses many problems due to the holistic nature of the aggregation function.

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  • (2016)Lightweight road network learning for efficient trajectory pattern mining2016 IEEE International Conference on Service Operations and Logistics, and Informatics (SOLI)10.1109/SOLI.2016.7551666(83-88)Online publication date: Jul-2016
  • (2014)A general framework for trajectory data warehousing and visual OLAPGeoinformatica10.1007/s10707-013-0181-318:2(273-312)Online publication date: 1-Apr-2014
  • (2014)Analysis of Trajectory Data in Support of Traffic Management: A Data Mining ApproachAdvances in Data Mining. Applications and Theoretical Aspects10.1007/978-3-319-08976-8_13(174-188)Online publication date: 2014
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      cover image ACM Conferences
      SAC '09: Proceedings of the 2009 ACM symposium on Applied Computing
      March 2009
      2347 pages
      ISBN:9781605581668
      DOI:10.1145/1529282
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      Published: 08 March 2009

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      Author Tags

      1. aggregate function
      2. frequent patterns
      3. trajectories

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      March 8, 2009 - March 12, 2008
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      View all
      • (2016)Lightweight road network learning for efficient trajectory pattern mining2016 IEEE International Conference on Service Operations and Logistics, and Informatics (SOLI)10.1109/SOLI.2016.7551666(83-88)Online publication date: Jul-2016
      • (2014)A general framework for trajectory data warehousing and visual OLAPGeoinformatica10.1007/s10707-013-0181-318:2(273-312)Online publication date: 1-Apr-2014
      • (2014)Analysis of Trajectory Data in Support of Traffic Management: A Data Mining ApproachAdvances in Data Mining. Applications and Theoretical Aspects10.1007/978-3-319-08976-8_13(174-188)Online publication date: 2014
      • (2012)A metaphoric trajectory data warehouse for Olympic athlete follow-upConcurrency and Computation: Practice & Experience10.1002/cpe.186924:13(1497-1512)Online publication date: 1-Sep-2012
      • (2011)Frequent itemset mining of uncertain data streams using the damped window modelProceedings of the 2011 ACM Symposium on Applied Computing10.1145/1982185.1982393(950-955)Online publication date: 21-Mar-2011
      • (2011)Spatio-temporal Similarity Measure for Network Constrained Trajectory DataInternational Journal of Computational Intelligence Systems10.1080/18756891.2011.97278554:5(1070-1079)Online publication date: Sep-2011
      • (2011)Foresee, a fully distributed self-organized approach for improving traffic flowsSimulation Modelling Practice and Theory10.1016/j.simpat.2011.01.00319:4(1096-1117)Online publication date: Apr-2011
      • (2010)Mining uncertain data for frequent itemsets that satisfy aggregate constraintsProceedings of the 2010 ACM Symposium on Applied Computing10.1145/1774088.1774305(1034-1038)Online publication date: 22-Mar-2010
      • (2010)Ad-hoc OLAP on Trajectory DataProceedings of the 2010 Eleventh International Conference on Mobile Data Management10.1109/MDM.2010.63(189-198)Online publication date: 23-May-2010

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