A Weight-based Map Matching Method in Moving Objects Databases

  • Authors:
  • Huabei Yin;Ouri Wolfson

  • Affiliations:
  • Department of Computer Science, Chicago, IL;Department of Computer Science, Chicago, IL

  • Venue:
  • SSDBM '04 Proceedings of the 16th International Conference on Scientific and Statistical Database Management
  • Year:
  • 2004

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Abstract

In location management, the trajectory represents themotion of a moving object in 3D space-time, i.e., asequence (x, y, t). Unfortunately, location technologies,cannot guarantee error-freedom. Thus, map matching(a.k.a. snapping ), matching a trajectory to the roads onthe map, is necessary. We introduce a weight-based mapmatching method, and experimentally show that, for theoffline situation, on average, our algorithm can get up to94% correctness depending on the GPS sampling interval.