This paper presents the Aether web application for generating, viewing and comparing extended VoID statistical descriptions of RDF datasets. The tool is useful for example in getting to know a newly encountered dataset, in comparing datasets between versions and in detecting outliers and errors. Examples are given on how the tool has been used to shed light on multiple important datasets.

S. Amer-Yahia C. Botev J. Dörre J. Shanmugasundaram There has been recent interest in developing XML query languages, such as XPath and XQuery, to tap the vast amount of information represented and stored in Extensible Markup Language (XML). These query languages, however, have focused mainly on querying the structure of XML documents and provide only rudimentary support for querying text conte...

We present results from our computational efforts to determine defect characteristics via solution of inverse problems which involve the 2D wave equation in a domain which presents geometric complexities. We develop a technique for determining “optimal” placement of a receiver based on the geometry of the interrogation problem which involves a plane wave pulse and single receiver. A forward sim...

Galaxy bias, the unknown relationship between the clustering of galaxies and the underlying dark matter density field is a major hurdle for cosmological inference from large-scale structure. While traditional analyses focus on the absolute clustering amplitude of high-density regions mapped out by galaxy surveys, we propose a relative measurement that compares those to the underdense regions, c...

Prediction method for undrained shear behaviour of unsaturated soils is discussed in this paper. Based on Original Cam Clay model, authors have proposed constitutive model for unsaturated soils that the effect of water content is incorporated into superloading surface concept. Firstly, stress path of constant volume shear test is formulated under constant void ratio condition. And relationship ...

rom the detection of buried treasure to the detection of landmines and unexploded ordnance, the history of metal detectors is long and varied. This article reviews the basic technology for detecting metal objects using electromagnetic induction techniques. Working with the U.S. Army Night Vision and Electronic Sensors Directorate and other government agencies, APL has developed a number of adva...

The number of open datasets available on the web is increasing rapidly with the rise of the Linked Open Data (LOD) cloud and various governmental efforts for releasing public data. However, the metadata available for the datasets is often minimal, heterogeneous, and distributed, which makes finding a suitable dataset for a given need problematic. To address the problem, we present a distibuted ...