JICS   2012 Vol. 9 (16) : 5093- 5100
Title: Discovering Shared Segments on the Migration Route of the Bar-headed Goose by Time-based Plane-sweeping Trajectory Clustering
Authors: Ze LUO, Baoping YAN, John Y. TAKEKAWA, Diann J. PROSSER
Abstract: We propose a new method to help ornithologists and ecologists discover shared segments on the migratory pathway of the bar-headed geese by time-based plane-sweeping trajectory clustering. We present a density-based time parameterized line segment clustering algorithm, which extends traditional comparab-le clustering algorithms from temporal and spatial dimensions. We present a time-based plane-sweeping trajectory clustering algorithm to reveal the dynamic evolution of spatial-temporal object clusters and discover common motion patterns of bar-headed geese in the process of migration. Experiments are performed on GPS-based satellite telemetry data from bar-headed geese and results demonstrate our algorithms can correctly discover shared segments of the bar-headed geese migratory pathway. We also present findings on the migratory behavior of bar-headed geese determined from this new analytical approach.
Keywords: Trajectory Clustering; Plane Sweeping; Bar-headed Goose