Title :
Evaluating robustness of a HMM-based classification system of volcano-seismic events at colima and popocatepetl volcanoes
Author :
Cortés, Guillermo ; Arámbula, Raul ; Gutiérrez, Ligdamis A. ; Benítez, Carmen ; Ibánez, Jesus ; Lesage, Philippe ; Álvarez, Isaac ; García, Luz
Author_Institution :
Dipt. de Teoia de la Senal, Telematica y Comun., Univ. de Granada, Granada, Spain
Abstract :
This work presents a continuous volcano-seismic classification system based in the Hidden Markov Models as solution to recently strong needs for automatic event detection and recognition methods in early warning and monitoring scenarios. Furthermore, our system includes a reliable method to assign confidence measures to the recognized signals in order to evaluate the robustness of the results. Data from the two most active volcanoes have been used to probe the system reliability on a complex joint corpus achieving a recognition accuracy higher than 78% in blind recognition tests.
Keywords :
geophysical signal processing; hidden Markov models; robust control; seismology; volcanology; Colima volcano; HMM-based classification system; Hidden Markov Models; Mexico; Popocatepetl volcano; automatic event detection; blind recognition tests; recognition methods; robustness evaluation; volcano monitoring; volcano-seismic events; Automatic speech recognition; Databases; Hidden Markov models; Mel frequency cepstral coefficient; Monitoring; Reliability; Robustness; Spectrogram; System testing; Volcanoes; Hidden Markov Models; classification; reliability; volcano monitoring; volcano-seismic events;
Conference_Titel :
Geoscience and Remote Sensing Symposium,2009 IEEE International,IGARSS 2009
Conference_Location :
Cape Town
Print_ISBN :
978-1-4244-3394-0
Electronic_ISBN :
978-1-4244-3395-7
DOI :
10.1109/IGARSS.2009.5418275