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The ratio of spectral power in two different bands and relative band power have been shown to be sometimes more discriminative features than the spectral power in a specific band for binary classification of a time-series for seizure prediction. Using auto-regressive modeling, this paper, for the first time, theoretically explains that, for high signal-to-noise ratio (SNR) cases, the ratio features may sometimes amplify the discriminability of one of the two states in a time-series as compared to a band power. This paper, also for the first time, introduces a novel frequency-domain model ratio (FDMR) that can be used to select the two frequency bands. The FDMR computes the ratio of the frequency responses of the two auto-regressive model filters that correspond to two different states. It is shown that the ratio implicitly cancels the effect of change of variance of the white noise that is input to the auto-regressive model in a non-stationary environment for high SNR conditions. It is also shown that under certain sufficient but not necessary conditions the ratio of spectral power and the relative band power can be better discriminators than band power.
This article was published in the following journal.
Name: IEEE transactions on biomedical circuits and systems
Lower physical activity levels in old age are thought to contribute to the age-related decline in peak aerobic and anaerobic power. Master athletes maintain high levels of physical activity with advan...
Power - or the wielding of power - is an evitable and necessary component of the way organisations function. This is because power forms the basis of 'getting things done', 'making a difference' and a...
High levels of laser power stability are necessary for high precision metrology applications. The classical limit for the achievable power stability is determined by the shot noise of the light used t...
Extending previous electrokinetic analyses based on a Newtonian fluid to power-law fluids, we investigate the behaviors of the ion current rectification (ICR) and the ion selectivity S of a conical na...
Results of PART II to IV are analyzed under the perspective of power theory of the German sociologist Heinrich Popitz. A communication process model - based on enforcement, instrumental and action pow...
Objective: To evaluate and compare the outcome predictive power of Acute Physiologic and Chronic Health Evaluation (APACHE) Ⅳ、Ⅲ、Ⅱ scoring systems for intensive ill patients in an ...
The severity of minimal dialysis disequilibrium syndrome (DDS) is currently detected and graded clinically using clinical criteria. Bispectral Index (BIS), an electroencephalographic (EEG)...
This study determines the effects of posture on time up and go test. Half of the subjects will assume a high-power posture, while the other half will assume a low-power posture.
Prospective, one arm, baseline-controlled, clinical study for the evaluation of the UltraShape Power treatment using the U-Sculpt Power Transducer for non-invasive abdominal fat and circum...
The primary goal of this study is to evaluate the efficacy and safety of the DBS to the fornix/NbM among patients who are diagnosed as AD according to a series of evaluations including cer...
Treatment using irradiation with light of low power intensity so that the effects are a response to the light and not due to heat. A variety of light sources, especially low-power lasers are used.
Large vessels propelled by power or sail used for transportation on rivers, seas, oceans, or other navigable waters. Boats are smaller vessels propelled by oars, paddles, sail, or power; they may or may not have a deck.
The ratio of two odds. The exposure-odds ratio for case control data is the ratio of the odds in favor of exposure among cases to the odds in favor of exposure among noncases. The disease-odds ratio for a cohort or cross section is the ratio of the odds in favor of disease among the exposed to the odds in favor of disease among the unexposed. The prevalence-odds ratio refers to an odds ratio derived cross-sectionally from studies of prevalent cases.
A condition of an inequality of refractive power of the two eyes.
Natural sources from which power is obtained.