This paper presents a new method for designing two-band orthonormal IIR wavelet "lter banks using allpass "lters. It is well known that orthonormal wavelet bases can be generated by paraunitary "lter banks. Thus, synthesis of orthonormal wavelet bases can be reduced to the design of paraunitary "lter banks. In this paper, two-band orthonormal IIR wavelet "lter banks using a parallel connection ...

This paper explores data curation in a Long Term Ecological Research (LTER) setting. It describes a number of salient data characteristics that are specific to the discipline and outlines some central features of the curation approach cultivated within the US LTER network. It goes on to identify recent developments within the international LTER program relating to data issues: increasing hetero...

A granulometric bandpass "lter (GBF) passes certain size bands in a binary image. There exists an analytic formulation for the optimization of GBFs in terms of the granulometric size density of a random set. This size density plays the role of the power spectral density for optimization of linear "lters. An optimal "lter depends on the parameters governing the distribution of the random set. In...

We introduce a novel, data-adaptive, and robust ltering framework: a ne order-statistic lters. A ne order-statistics relate classical order-statistics to observations in their natural order and thus inherently yield a meaningful data representation. A ne order-statistic lters exploit this notion to adaptively process nonstationary signals. A ne order-statistic lters overcome many of the limitat...

Subband adaptive "ltering, which is the basis of modern acoustic echo cancellation (AEC) systems, is an important application of "lter banks in which critical sampling cannot be used in general because of decimation aliasing e!ects. This leads to the use of oversampling schemes in the "lter bank design wherein the perfect-reconstruction (PR) or near PR property is still required. In this work, ...

Packet lters are rules for classifying packets based on their header elds. A lter speciies a pattern for each of the key header elds, and an action that is applied to the packet matching this lter. Packet classiication is essential to routers supporting services such as Quality of Service (QoS), Virtual Private Networks (VPNs), and rewalls. A lter connict occurs when two or more lters overlap, ...

Centropages typicus is a temperate calanoid copepod occurring in Atlantic and Mediterranean coastal waters, where its reproductive biology population dynamics are well-known. C. has also been suggested as key species for monitoring the impact of environmental changes on secondary production. The aim this study to investigate seasonal interannual (egg production egg hatching success) feeding (fe...

In 1996, Krivine applied Friedman’s A-translation in order to get an intuitionistic version of G odel completeness result for rst-order classical logic and (at most) countable languages and models. Such a result is known to be intuitionistically underivable (see J. Philos. Logic 25 (1996) 559), but Krivine was able to derive intuitionistically a weak form of it, namely, he proved that every con...

The LOMOPLAN (LOcal MOnoPLane ANnihilator) lter in three dimensions is a deconvolution lter that takes a volume in and produces two volumes out. The x-output volume results from a rst order prediction-error lter on the x-axis, and the y-output volume is likewise on the y-axis. Synthetic data studies are promising.

Starting from maximizing information ow through a nonlinear neuron Bell and Sejnowski derived adaptation equations for blind deconvolution using an FIR lter [1]. In this paper we will derive a simpler form of the adaptation and we will apply it to more complex lter structures, such as recursive lters. As an application, we study blind echo cancellation for speech signals. We will also present a...