Hyperspectral Unmixing (HU) has received increasing attention in the past decades due to its ability of unveiling information latent in hyperspectral data. Unfortunately, most existing methods fail to take advantage of the spatial information in data. To overcome this limitation, we propose a Structured Sparse regularized Nonnegative Matrix Factorization (SS-NMF) method from the following two a...

OBJECTIVE To study the incidence and severity of organ dysfunction associated with sepsis. DESIGN Comprehensive review of prospectively collected data from intensive care patients hospitalized between 1997 and 2001. SETTING Thirty-five ICUs in nonuniversity and university hospitals located in the Paris area. PATIENTS All patients hospitalized in the ICU for > 24 h meeting the criteria for...

let $h$, $l$ and $x$ be subgroups of a finite group$g$. then $h$ is said to be $x$-permutable with $l$ if for some$xin x$ we have $al^{x}=l^{x}a$. we say that $h$ is emph{$x$-quasipermutable } (emph{$x_{s}$-quasipermutable}, respectively) in $g$ provided $g$ has a subgroup$b$ such that $g=n_{g}(h)b$ and $h$ $x$-permutes with $b$ and with all subgroups (with all sylowsubgroups, respectively) $v$...

Today’s deep submicron technologies allow the integration of multiple memories on a single chip. Embedded memories are one of the most universal cores, which occupy around 90% area in system-on-chip (SoC) architecture due to the demand for high data storage. So, the embedded memory test process has become an essential part of the SoC development phase. Some of the March algorithms including rec...

The orientation preserving topological symmetry group of a graph embedded in the 3-sphere is the subgroup of the automorphism group of the graph consisting of those automorphisms which can be induced by an orientation preserving homeomorphism of the ambient space. We characterize all possible orientation preserving topological symmetry groups of embeddings of complete graphs in the 3-sphere.

Let p ≥ 5 be a prime number. We prove that the abstract commensurator of the Nottingham group N (Fp) coincides with its automorphism group, which is known to be a finite extension of N (Fp). As a corollary we deduce that the Nottingham group cannot be embedded as an open subgroup of a topologically simple group.

Let U be a unital embedded in the Desarguesian projective plane PG(2, q 2). Write M for the subgroup of PGL(3, q 2) which preserves U. We show that U is classical if and only if U has two distinct points P, Q for which the stabiliser G = MP,Q has order q 2 − 1.

We construct an embedding of any right-angled Artin group into a graph braid group. We include an observation which decreases the number of strands of the graph braid group required for this embedding, yielding an example of a hyperbolic surface subgroup embedded in a two strand planar graph braid group.

The great challenge, in blind audio watermarking, is to recover the transparent embedded information with minimum errors even in presence of disturbances. Some signal disturbances like MPEG compression and filtering can be modelled as fading-like distortions. Besides the inaudibility constraint, the problem will be viewed as the conception of a particular communication system, where our purpose...

Data hiding embeds extra information into digital media for the purpose of authentication, annotation and copyright protection. Transparency and robustness are two contradictory requirements for any data hiding scheme. This paper studies audio data hiding using spread spectrum(SS) technique in subband domain. On transparency part, we propose a novel method of tuning psycho-acoustic models emplo...