The focus for information retrieval systems in digital libraries has shifted from passive repositories of information to recommendation systems that actively participate in retrieving useful information, and can furthermore learn from the retrieval behavior of users. We propose a novel evaluation methodology for such systems based on the concepts of shared knowledge structures, and system devel...

We analyze seismic anisotropy for the Eastern Alpine region by inspecting shear-wave splitting from SKS and SKKS phases. The Eastern Alpine region is characterized by a breakdown of the clear mountain-chain-parallel fast orientation pattern that has been previously documented for the Western Alps and for the western part of the Eastern Alps. The main interest of this paper is a more detailed an...

Recently, a metastable thermal-chemical convection model was proposed to explain the African Superplume. Its bulk tabular shape remains relatively stable while its interior undergoes significant stirring with low-velocity conduits along its edges and down-welling near the middle. Here, we perform a mapping of chemistry and temperature into P and S velocity variations and replace a seismically d...

The eastern Mediterranean hosts, within the span of a few hundred kilometers, extensional, strike-slip, and collision tectonics above set fragmenting subducting slabs. Slab roll-back, toroidal flow, lithospheric dripping/delamination processes are also believed to be operating. Associated asthenospheric flow deformation expected manifest as seismic anisotropy, measurable via study SKS shear wav...

SUMMARY To constrain seismic anisotropy under and around the Alps in Europe, we study SKS shear wave splitting from region densely covered by AlpArray network. We apply a technique based on measuring intensity, constraining well both fast orientation delay. Four years of teleseismic earthquake data were processed, 723 temporary permanent broad-band stations deployment including ocean-bottom sei...

As an important segment of the North China Craton, Trans-North Orogen (TNCO) has experienced strong tectonic deformation and magmatic activities since Cenozoic is characterized by significant seismicity. To understand mechanism crustal seismic hazards, we determined thickness ( H ), Vp / Vs ratio κ ) anisotropy (the fast polarization direction φ splitting time τ beneath TNCO its adjacent areas ...

Interaktive Dienste für das sicherheitskritische System (SKS) Fahrer-Fahrzeug müssen nicht nur ihre Komfortaufgaben erfüllen, sie dürfen auch nicht den Fahrer bei der Wahrnehmung seiner sicherheitskritischen Aufgabe Fahrzeugführung ablenken und somit im Gesamtsystem Fahrer-Fahrzeug Ursache für Auslassungsfehler oder zeitliche Fehler sein. Das aktuelle Methodenarsenal zur Zusicherung dieser Eige...