Results 161 to 170 of about 1,468 (200)

MegaBlocks: Breaking the Logarithmic I/O-Overhead Barrier for Oblivious RAM

Proceedings of the 2025 ACM SIGSAC Conference on Computer and Communications Security
Oblivious RAM (ORAM) is a central cryptographic primitive that enables secure memory access while hiding access patterns. Among existing ORAM paradigms, hierarchical ORAMs were long considered impractical despite their asymptotic optimality.
Gilad Asharov   +3 more
semanticscholar   +2 more sources

Megablocks and Rafts

, 1989
The common occurrence of flat-lying glacial rafts or megablocks throughout glaciated plains was not appreciated until fairly recently (Stalker 1976; Sauer 1978; Ruszczynska-Szenajch 1987). These megablocks are more-or-less horizontal, slightly deformed, and are often buried under or within thick drift giving little or no morphologic clue to their ...
J. Aber, D. Croot, M. M. Fenton
semanticscholar   +2 more sources

Megablocks from the crystalline basement – the Lehberg outcrop, Unterwilflingen, Nördlinger Ries

Jahresberichte und Mitteilungen des Oberrheinischen Geologischen Vereins, 2022
L. Seybold   +4 more
semanticscholar   +2 more sources

Rate-distortion improvement of directional wavelets by megablocking

2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011
The inefficiency of separable wavelets in representing smooth edges has motivated the researchers to pursue new two dimensional transformations. One of the successful transformations in image compression is the directional wavelets. Although researchers have empirically shown that the directional wavelets outperform the separable wavelets in ...
Arian Maleki   +2 more
openaire   +1 more source

STRUCTURAL CONTROLS ON KIMBERLITE FORMATION IN THE ANABAR MEGABLOCK

International Geology Review, 1986
(1986). STRUCTURAL CONTROLS ON KIMBERLITE FORMATION IN THE ANABAR MEGABLOCK. International Geology Review: Vol. 28, No. 11, pp. 1336-1345.
A. A. Dukhovskiy   +3 more
openaire   +1 more source

AGE OF THE HANNIVKA GRANITE (MIDDLE-DNIEPER MEGABLOCK OF THE UKRAINIAN SHIELD)

Mineralogical Journal, 2022
The Middle-Dnieper megablock, which is a fragment of the craton, differs from other cratons found on Earth. This is because of the large variety of granitoids (Tokiv, Mokro-Moskowka, and Demuryne complexes) in the former that were formed after the Mesoarchean TTG.
G.V. Artemenko   +3 more
openaire   +1 more source

A preliminary geoelectrical model of the Karelian megablock of the Baltic shield

Physics of the Earth and Planetary Interiors, 1983
Abstract Three groups of electromagnetic data have been considered in order to construct a preliminary geoelectrical depth model of the old basement of the Baltic shield: (i) audiomagnetotelluric data in the period range 1 3700 − 1 8 s; (ii) magnetotelluric data in the period range 25–1000 s; and (iii) global magnetovariation-sounding ...
P. Kaikkonen   +5 more
openaire   +1 more source

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