DISCUSSION OF “CLUSTERING ON DISSIMILARITY REPRESENTATIONS FOR DETECTING MISLABELLED SEISMIC SIGNALS AT NEVADO DEL RUIZ VOLCANO ” BY

The authors are to be congratulated for a systematic in-vestigation of the accurate and non subjective classify-ing approach in seismic research. The authors have conducted several clustering algorithms to the seismic event records from Volcanological and Seismological Observatory at Manizales. Their objective was to im-prove the grouping of seismic data (i.e., volcano-tec-tonic earthquakes, long-period earthquakes and icequakes) digitized at 100.16Hz sampling frequency. Their study seems adding new approach to their previouswork of Langer et al. (2006) who applied dif-ferent classificationtechniques to seismic data. The discussers have the following suggestions to improve the author’s investigation on Ruiz volcano data and to be a guide for similar future studies