INTRODUCTION Intracranial arteriovenous malformations (iAVMs) are responsible for the majority of intracranial hemorrhages and confer significant morbidity and mortality in young adults. Expectant management, eventual therapy, and post-procedural follow up of iAVMs require detailed vascular imaging studies to delineate the angioarchitecture of the lesion, the surrounding normal vascular environ...

We evaluate the Berkeley parser on text from an online discussion forum. We evaluate the parser output with and without gold tokens and spellings (using Sparseval and Parseval), and we compile a list of problematic phenomena for this domain. The Parseval f-score for a small development set is 77.56. This increases to 80.27 when we apply a set of simple transformations to the input sentences and...

Recent efforts have shown that the reconstruction performance could be improved with optimized sensing matrix according to a given dictionary for a compressed sensing (CS) system. The existed optimizing conditions are mainly used to address the worst-case performance of CS recovery. Considering the quality of a sensing matrix with respect to the mean squared error (MSE) performance of the Oracl...

A procedure for the construction of balanced orthogonal nonseparable quincunx multiwavelets, having filters with good lowpass properties, is introduced. Thematrix filter bank is viewed as the polyphasematrix of other filters, uponwhich the lowpass condition is imposed. The multiscaling functions obtained are plotted by means of the cascade algorithm. The process of transforming an image with th...

In this paper, we give explicit construction of multiwavelets on polygonal region in R 2 that is associated with a nested triangular tessellation. Two di erent constructions will be presented. The rst construction is very similar to Alpert's construction in [3], but unlike the latter 1-D construction, in which case symmetry of basis functions comes in almost automatically, the multiwavelets fro...

Motivated by recent developments in quantum simulation of synthetic dimensions, e.g., optical lattices ultracold atoms, we discuss here d-dimensional periodic, gapped systems for d ≤ 4, with a focus on the topology occupied energy states. We perform this analysis asking whether spectral subspace below gap can be spanned smooth and periodic Bloch functions, corresponding to localized Wannier fun...