Usually, we need a large number of testing samples to evaluate the performance of automatic speaker verification (ASV) systems. The equal error rate (EER) is a common measure for this purpose. It is derived according to the threshold determined by finding the verification score when the false rejection rate (FRR) equals to the false acceptance rate (FAR). In this paper, a method of model-based ...

The ability to automatically scan voicemail messages for content and caller identity cues would be a useful service. This paper describes a system which automatically les voicemail messages into caller folders using text independent speaker recognition techniques. Callers are represented by Gaussian mixture models (GMM's). The speech for an incoming message is processed and scored against calle...

In this paper we test a range of three-dimensional face recognition systems, based on the fishersurface method developed in previous work. We show the effect of using a variety of facial surface representations and suggest a method of identifying and extracting useful qualities offered by each system. Combing these components into a unified surface subspace, we create a threedimensional face re...

During the detection of late potentials a large number of heartbeats is rejected due to the artifact corruption of the EKG. In this paper we investigate the possibility of decreasing this rejection through the removal of the artifacts based on the analysis of the EKG using its statistically independent components.. Using this procedure a 53% increase on the heart beat acceptance ratio was obtai...

A new method to predict if two words are likely to be confused by an Automatic Speech Recognition (ASR) system is presented in this paper. A new inter-word dissimilarity measure based on Dynamic Time Warping (DTW) is used to classify the word pairs as confusable or not confusable. Firstly, the phonetic transcriptions of the two words to compare are aligned using only phonetic information. After...