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Combining Spatial and Telemetric Features for Learning Animal Movement Models
Proceedings of the 26th Conference on Uncertainty in Artificial Intelligence, PMLR R8:268-275, 2010.
Abstract
We introduce a new graphical model for tracking radio-tagged animals and learning their movement patterns. The model pro- vides a principled way to combine radio telemetry data with an arbitrary set of user- defined, spatial features. We describe an ef- ficient stochastic gradient algorithm for fit- ting model parameters to data and demon- strate its effectiveness via asymptotic analy- sis and synthetic experiments. We also ap- ply our model to real datasets, and show that it outperforms the most popular ra- dio telemetry software package used in ecol- ogy. We conclude that integration of dif- ferent data sources under a single statistical framework, coupled with appropriate param- eter and state estimation procedures, pro- duces both accurate location estimates and an interpretable statistical model of animal movement.