In this paper, we examine robust feature extraction methods for automatic speech recognition (ASR) in noise-distorted environments. Several perceptual experiments have shown that the range between 1 and 10 Hz of modulation frequency band is important for ASR. Combining the coefficients of multi-resolutional Fourier transform to split the important modulation frequency band for ASR into several ...

The multiple sleep latency test and the maintenance of wakefulness test were administered on the same day to 258 consecutive patients whose clinical presentation required evaluation for excessive sleepiness. While the MSLT is the standard test for assessing excessive daytime sleepiness, the MWT may have some clinical advantage over the MSLT when the assessment of daytime alertness is the primar...

OVER THE LAST 15 YEARS, MAJOR EPIDEMIOLOGICAL STUDIES HAVE HIGHLIGHTED THE PREVALENCE OF SLEEPINESS AND SLEEP DISORDERS AMONG general population.1-3 Sleepiness at the wheel2,4 has been identified as one of the major reasons for highway accidents and fatal crashes. Patients with obstructive sleep apnea syndrome (OSAS) have a much higher risk of accidents than drivers without nocturnal breathing ...

Abstract Introduction In the phase 3 REST-ON trial (NCT02720744), mean sleep latency on Maintenance of Wakefulness Test (MWT) was significantly improved vs placebo with investigational, extended-release once-nightly sodium oxybate (FT218 [ON-SXB]; P< 0.001). This post hoc analysis assessed response to treatment and improvement in excessive daytime sleepiness (EDS). Methods Participants (...

STUDY OBJECTIVES Multiple sleep latency testing (MSLT) and the maintenance of wakefulness test (MWT) are gold-standard objective tests of daytime sleepiness and alertness; however, there is marked variability in their interpretation and practice. This study aimed to determine the incidence of positive drug screens and their influence on MSLT, MWT, and polysomnographic variables. METHODS All p...

BACKGROUND The 6-minute walk test (6-MWT) is used to assess patients with chronic heart failure (CHF). The prognostic significance of the 6-MWT distance during long-term followup (>5 years) is unclear. METHODS 1,667 patients (median [inter-quartile range, IQR]) (age 72 [65-77]; 75% males) with heart failure due to left ventricular systolic impairment undertook a 6-MWT as part of their baselin...

This study investigated the possible factors related to the Maintenance of Wakefulness Test (MWT) mean sleep latency. A second analysis explored the characteristics of subjects who had discrepant Epworth Sleepiness Scale (ESS) and MWT scores. A total of 151 subjects (110 mild to moderate obstructive sleep apnoea (OSA) patients and 41 control subjects) were recruited for the study. The subjects ...

Minimum-weight triangulation (MWT) is NP-hard. It has a polynomial-time constant-factor approximation algorithm, and a variety of effective polynomialtime heuristics that, for many instances, can find the exact MWT. Linear programs (LPs) for MWT are well-studied, but previously no connection was known between any LP and any approximation algorithm or heuristic for MWT. Here we show the first su...

STUDY OBJECTIVE To determine the ability of Maintenance of Wakefulness Test (MWT) to predict simulated driving performance in patients suffering from sleep apnea syndrome. DESIGN Study involving one hour of simulated driving, one night of polysomnography (PSG), and a 4 x 40-minute MWT. SETTING Sleep laboratory. PATIENTS Thirty male patients with untreated obstructive sleep apnea syndrome ...