Motoaki Mouri

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Anomalous radiations of environmental electromagnetic (EM) waves have been reported as the portents of earthquakes. Our study's goal is predicting earthquakes using EM signals. We have been measuring the Extremely Low Frequency (ELF) range all over Japan. However, the recorded data contain signals or noises unrelated to earthquakes. These signals and noises(More)
Anomalous environmental electromagnetic (EM) radiation waves have been reported as the portents of earthquakes. Our goal is to predict earthquakes using EM radiation waves. We have been measuring the Extremely Low Frequency (ELF) range all over Japan. However, the recorded data contain signals unrelated to earthquakes. These signals, as noise, confound(More)
Anomalous environmental electromagnetic (EM) radiation waves have been reported as the portents of earthquakes. We have been measuring the Extremely Low Frequency (ELF) range all over Japan. Our goal is to predict earthquakes using EM radiation waves. The recorded data often contain signals unrelated to earthquakes. These signals, as noise, confound(More)
Nonnegative matrix factorization (NMF) is a linear nonnegative approximate data representation technique. NMF is often used to solve blind signal separation (BSS) problem. We had used a basic NMF algorithm named ISRA and our original algorithm named QL1-NMF to analyze the environmental electromagnetic data in extremely low frequency (ELF) band. In previous(More)