GAMMA: A framework for moving object simulation

Haibo Hu, Dik Lun Lee

Research output: Journal article publicationConference articleAcademic researchpeer-review

9 Citations (Scopus)


Simulating user mobility is crucial for mobile computing and spatial database research. However, all existing moving object generators assume a fixed and often unrealistic mobility model. In this paper, we represent the moving behavior as a trajectory in the location-temporal space and propose two generic metrics to evaluate a trajectory dataset. In this context, trajectory generation is treated as an optimization problem and a framework, GAMMA, is proposed to solve it by the genetic algorithm. We demonstrate GAMMA's practicability and flexibility by configuring it for two specific simulations, namely, cellular network trajectory and symbolic location tracking. The experimental results show that GAMMA can efficiently and robustly produce high quality moving object datasets for various simulation objectives.
Original languageEnglish
Pages (from-to)37-54
Number of pages18
JournalLecture Notes in Computer Science
Publication statusPublished - 18 Oct 2005
Externally publishedYes
Event9th International Symposium on Spatial and Temporal Databases, SSTD 2005 - Angra dos Reis, Brazil
Duration: 22 Aug 200524 Aug 2005

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


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