It has been suggested that the different patterns of brain activity observed during paced finger tapping and non-movement related timing tasks, with medial premotor cortex (supplementary motor cortex, pre and proper) and ipsilateral cerebellum dominating the former, and dorsolateral prefrontal cortex (DLPFC) the latter, might be related to differing motor demands. Since paced finger tapping oft...

Combinatorial auctions are mechanisms for allocating bundles of goods to agents who each have preferences over these goods. Finding an economically efficient allocation, the so-called winner determination problem, is computationally intractable in the general case, which is why it is important to identify special cases that are tractable but also sufficiently expressive for applications. We int...

Background and Aim: The study objective was to assess chaotic global metrics in malnourished children following power spectral manipulations. Methods: We evaluated the complexity of heart rate (HR) variability (HRV) subjects via six spectra (Welch, multi-taper method (MTM), Burg, covariance, Yule-Walker, periodogram) then, when adjusted by MTM parameters, for further refinement. Seventy were sp...

The traditional classi er rules evolved in genetic based machine learning (GBML) systems need a discretization process to handle problems with real-valued attributes. A good discretization procedure is needed to generate a solution with good accuracy because the alternative of a high number of simple uniform-width intervals is bad due to the big search space being hardly explorable in a reasona...

In switched dynamic system the continuous phase ow is accompanied by a stream of switching events. If the system exhibits chaotic behavior this event stream can be used for generating a rectangular wave with chaotic switching times. In this paper the probability distribution of the intervals between the switching times is derived. Two system di erent in their continuous state model are treated:...

This study investigates the effects of varying sampling intervals on the long memory characteristics of certain stochastic processes. We find that although different sampling intervals do not affect the decay rate of discrete time long memory autocorrelation functions in large lags, the autocorrelation functions in short lags are affected significantly. The level of the autocorrelation function...

Discretization is the process of dividing a continuousvalued base attribute into discrete intervals, which highlight distinct patterns in the behavior of a related goal attribute. In this paper, we present an integrated visual framework in which several discretization strategies can be experimented with, and which visually assists the user in intuitively determining the appropriate number and l...

BACKGROUND Controversies are common in medicine. Some arise when the conclusions of research publications directly contradict each other, creating uncertainty for frontline clinicians. DISCUSSION In this paper, we review how researchers can look at very similar data yet have completely different conclusions based purely on an over-reliance of statistical significance and an unclear understand...

A t-interval is a union of at most t half-open intervals on the real line. An interval is the special case where t = 1. Requests for contiguous allocation of a linear resource can be modeled as a sequence of t-intervals. We consider the problems of online selection of intervals and t-intervals, which show up in Video-on-Demand services, high speed networks and molecular biology, among others. W...

This paper presents a new tool-supported formalism based on collections of related timed occurrence nets, namely, timed structured occurrence nets (timed sons) for the modelling and analysis of causally-related events and concurrent events with uncertain or missing time information in evolving systems of systems. The application domain of timed sons includes accident and crime investigations. A...