Abstract The long-standing problem of Shannon entropy estimation in data streams (assuming the strict Turnstile model) is now an easy task by using the technique proposed in this paper. Essentially speaking, in order to estimate the Shannon entropy with a guaranteed ν-additive accuracy, it suffices to estimate the αth frequency moment, where α = 1−∆, with a guaranteed ǫ-multiplicative accuracy,...

This article presents a low-latency speaker diarization system (“who is speaking now?”) based on a hybrid approach that combines a traditional offline speaker diarization system (“who spoke when?”) with an online speaker identification system. The system fulfills all requirements of the diarization task, i.e. it does not need any a-priori information about the input, including no specific speak...

We evaluate the accuracy of an MFCC-based speaker recognition method. We analyse the recognition results using speech signal from everyday life environments. We study the mismatch effects of text-dependency, sample length, language, style of speaking, cheating, microphone, sample quality, and noise. The experiments on a self-collected corpus of 30 subjects indicate that any mismatch degrades re...

The vital role individual differences, such as personality variation, play has long been discussed as the origin of different learning abilities. Accordingly, a cross-sectional survey and a descriptive study was conducted. Data was gathered from a sample of 150 students of both genders (107 females and 43 males) with an age range of 19-22. The translated and validated versions of the Big Five p...

abstract the present study examined the effect of genre-based tasks on efl learners' speaking performance and probed whether genre-based tasks may empower efl learners to perform better on speaking tests. a further concern of the study was to explore whether the effect of genre-based tasks on speaking ability of efl learners varied across different age groups, i.e. teenagers (13-16 years o...

The MIS Quarterly has always had a strong focus on building and testing theory. In this regard, most research articles published in the MIS Quarterly have proposed a theory and then tested it either in whole or in part. In the June 1998 issue of the MIS Quarterly, however, Bob Zmud as then Editor-in-Chief issued a call for pure-theory submissions: research article submissions that had the sole ...

one will no doubt be as successful as its predecessors. It lacks something in connected thought, for its "chapters" are in reality different lectures given to a wide variety of audiences and necessarily pitched at different levels under titles by no means mutually exclusive. The book is thus best read as a series of essays and these include, as in the author's other writings, sex and society, t...

This study was an attempt to investigate what metacognitive strategies are specifically employed by English learners when it comes to different speaking task types.60 students at advanced level (female) were randomly selected and given an OPT as a test of homogeneity. They were assigned to experimental and control groups. The MS questionnaire (Oxford, 1990) was also administered to see what MS ...

It has been suggested that music and speech maintain entirely dissociable mental processing systems. The current study, however, provides evidence that there is an overlap in the processing of certain shared aspects of the two. This study focuses on fundamental frequency (pitch), which is an essential component of melodic units in music and lexical and/or intonational units in speech. We hypoth...