We have incorporated spectrotemporal features in a speech activity detection (SAD) task for the Speech in Noisy Environments 2 (SPINE2) data set. The features were generated by applying 2D Gabor filters to the mel spectrogram in order to measure the strength of various spectral and temporal modulation frequencies in different patches of the spectrogram. Using several different back-ends, the Ga...

In this paper we present a simple, yet powerful, method for the identification of stiffness matrices of structural and mechanical systems from information about some of their measured natural frequencies and corresponding mode shapes of vibration. The method is computationally efficient and is shown to perform remarkably well in the presence of measurement errors in the mode shapes of vibration...

We consider a problem central in aerial visual surveil lance applications detection and tracking of small independently moving objects in long and noisy video sequences We directly use spatiotemporal image inten sity gradient measurements to compute an exact model of background motion This allows the creation of ac curate mosaics over many frames and the de nition of a constraint violation func...

This study examined the measurement of the contralateral acoustic stapedius reflex in six-week-old infants and adults using wideband shifts in admittance and energy reflectance (YR). The reflex activator was bandpass noise from 2,500 to 11,000 Hz presented at a maximum spectrum level of 51 dB SPL measured in the ear canal. Reflexes were detected by calculating a cross-correlation between one-tw...

Abstract Background Mining massive prescriptions in Traditional Chinese Medicine (TCM) accumulated the lengthy period of several thousand years to discover essential herbal groups for distinct efficacies is significance TCM modernization, thus starting draw attentions recently. However, most existing methods task treat herbs with different surface forms orthogonally and determine efficacy-speci...