We consider the data stream model where an n-dimensional vector x is updated coordinate-wise by a stream of updates. The frequency estimation problem is to process the stream in a single pass and using small memory such that an estimate for xi for any i can be retrieved. We present the first algorithms for `2-based frequency estimation that exhibit a tradeoff between the precision (additive err...

In this experimental work, the investigation about impact of geometrical dispositions triangular obstacles on performance parameters such as pressure drop and thermal efficiency. A number input affects system. These are heat flux, mass flow rate ( = 0.01 to 0.02 kg/s), obstacles’ height, h from 22 mm 37.5 mm, their cross-stream wise pitch (Ly 56 206 mm), angle inclination with vertical plane (Θ...

Streaming data classification requires that a model be available for classifying stream content while simultaneously detecting and reacting to changes to the underlying process generating the data. Given that only a fraction of the stream is ‘visible’ at any point in time (i.e. some form of window interface) then it is difficult to place any guarantee on a classifier encountering a ‘well mixed’...

The effect of fine particles on turbulence damping and reduction of flow friction coefficient in ribleted pipes, have been investigated experimentally. Tests have been conducted in a ribleted pipe with hydraulic diameter of 18.6 mm, and 20 stream wise riblets of 1.8 mm depth, along the pipe. Flows of water tap with Reynolds number from 5000 to 30000 were compared with flows containing silt-clay...

This paper addresses the following general scenario: A scientist wishes to perform a battery of experiments, each generating a sequential stream of data, to investigate some phenomenon. The scientist would like to control the overall error rate in order to draw statistically-valid conclusions from each experiment, while being as efficient as possible. The between-stream data may differ in distr...

In this paper we establish the existence of path-wise solutions and the uniqueness in law for multidimensional stochastic differential equations driven by a multi-dimensional fractional Brownian motion with Hurst parameter H > 12 .

We study the linear stability of Poiseuille flow a viscoelastic upper convected Maxwell fluid in which rheological parameters depend on concentration particles suspended (dense suspension with negligible diffusion). After determining basic and profile we consider temporal three dimensional perturbation form stream-wise span-wise wave. derive linearized perturbed equation prove validity Squire’s...

In the context of correlated multiple tests, we aim at controlling non-asymptotically the family-wise error rate (FWER) using resampling-type procedures. We observe repeated realizations of a Gaussian random vector in possibly high dimension and with an unknown covariance matrix, and consider the one and two-sided multiple testing problem for the mean values of its coordinates. We address this ...

Mass univariate analysis is a relatively new approach for the study of ERPs/ERFs. It consists of many statistical tests and one of several powerful corrections for multiple comparisons. Multiple comparison corrections differ in their power and permissiveness. Moreover, some methods are not guaranteed to work or may be overly sensitive to uninteresting deviations from the null hypothesis. Here w...