This paper reports on recent work in the context of the activities of the PoSTPort project aimed at porting a Broadcast News recognition system originally developed for European Portuguese to other varieties. Concretely, in this paper we have focused on porting to Brazilian Portuguese. The impact of some of the main sources of variability has been assessed, besides proposing solutions at the le...

This paper describes our current Spanish speech-to-text (STT) system with which we participated in the 2011 Quaero STT evaluation that is being developed within the Quaero program. The system consists of 4 separate subsystems, as well as the standard MFCC and MVDR phoneme based subsystems we included a both a phoneme and grapheme based bottleneck subsystem. We carefully evaluate the performance...

introduction: maintaining the patient safety is a fundamental concept in healthcare systems. working errors are the factors that threaten the patient safety, and are highly important to be controlled. the managers’ approach to error reporters is effective in preventing these errors and increasing error reporting in the case of occurrence. the current study aimed to analyze the managers’ approac...

The paper is focused on the Word Error Rate (WER) estimation in Analog to Digital Converters (ADCs) as specified in Annex A of the IEEE Std. 1241. The aim is to give a contribution for the next version of such standard. A new statistical approach for WER estimation, that can better integrate what it is stated in the standard, is proposed. In particular, Student’s t and chi-square distributions ...

Word error rate (WER), which is the most commonly used method of measuring automatic speech recognition (ASR) accuracy, penalizes all types of ASR errors equally. However, humans differentially weigh different types of ASR errors. They judge ASR errors that distort the meaning of the spoken message more harshly than those that do not. Aiming to align more closely with human perception of ASR ac...

This paper presents the results of a longitudinal study of ASR performance on ageing voices. Experiments were conducted on the audio recordings of the proceedings of the Supreme Court Of The United States (SCOTUS). Results show that the Automatic Speech Recognition (ASR) Word Error Rates (WERs) for elderly voices are significantly higher than those of adult voices. The word error rate increases...