The QuakeSim Web Portal Environment for GPS Data Analysis

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Executive Summary

This paper presents a web portal environment for analysis of GPS displacement data that supports interactive scientific exploration at both a network-wide (Macro view) and individual station (Micro view) level. Underlying this environment is a hidden Markov model based analysis method that allows segmentation of the GPS time series into statistically meaningful classes, as well as a web services infrastructure that connects the data to the method and user interface.

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