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Functional Compression Through Graph Coloring [PDF]

open access: yesIEEE Transactions on Information Theory, 2010
Motivated by applications to sensor networks and privacy preserving databases, we consider the problem of functional compression. The objective is to separately compress possibly correlated discrete sources such that an arbitrary but fixed deterministic function of those sources can be computed given the compressed data from each source.
Doshi, Vishal   +3 more
openaire   +2 more sources

Progressive or degressive compression pressure profile in patients with chronic venous disorders of the lower limb

open access: yesVeins and Lymphatics, 2014
Graduated compression devices are considered the standard care for management of venous and lymphatic disorders. Recently compression devices exerting a pressure over the calf higher than over the ankle have been proved to be more effective than ...
Giovanni Mosti
doaj   +1 more source

Speech Compression using Wavelet Transforms [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2007
In this research wavelet technique was used for speech compression. It was translated and scaled to groups which represent mother wavelet function. Applying the adopted algorithm with MATLAB software using Daubechies filters family (with multi-scale for ...
Khalil Al-Saif
doaj   +1 more source

First-principles investigation of anisotropic constitutive relationships in pentaerythritol tetranitrate [PDF]

open access: yes, 2008
First-principles density functional theory (DFT) calculations have been used to obtain the constitutive relationships of pentaerythritol tetranitrate (PETN-I), a crystalline energetic material.
Conroy, M. W.   +3 more
core   +1 more source

Using the Semantic Information G Measure to Explain and Extend Rate-Distortion Functions and Maximum Entropy Distributions

open access: yesEntropy, 2021
In the rate-distortion function and the Maximum Entropy (ME) method, Minimum Mutual Information (MMI) distributions and ME distributions are expressed by Bayes-like formulas, including Negative Exponential Functions (NEFs) and partition functions. Why do
Chenguang Lu
doaj   +1 more source

Plastic Deformation in Laser-Induced Shock Compression of Monocrystalline Copper [PDF]

open access: yes, 2002
Copper monocrystals were subjected to shock compression at pressures of 10–60 GPa by a short (3 ns initial) duration laser pulse. Transmission electron microscopy revealed features consistent with previous observations of shock-compressed copper, albeit ...
Boehly, T.   +8 more
core   +1 more source

Merkle-Damgård Construction Method and Alternatives: A Review

open access: yesJournal of Information and Organizational Sciences, 2017
Cryptographic hash function is an important cryptographic tool in the field of information security. Design of most widely used hash functions such as MD5 and SHA-1 is based on the iterations of compression function by Merkle-Damgård construction method ...
Harshvardhan Tiwari
doaj   +1 more source

$L_p$ compression, traveling salesmen, and stable walks

open access: yes, 2009
We show that if $H$ is a group of polynomial growth whose growth rate is at least quadratic then the $L_p$ compression of the wreath product $\Z\bwr H$ equals $\max{\frac{1}{p},{1/2}}$. We also show that the $L_p$ compression of $\Z\bwr \Z$ equals $\max{\
Naor, Assaf, Peres, Yuval
core   +2 more sources

Stream VByte: Faster Byte-Oriented Integer Compression [PDF]

open access: yes, 2017
Arrays of integers are often compressed in search engines. Though there are many ways to compress integers, we are interested in the popular byte-oriented integer compression techniques (e.g., VByte or Google's Varint-GB). They are appealing due to their
Kurz, Nathan   +2 more
core   +2 more sources

Compressing Functional Tests for Microprocessors [PDF]

open access: yes14th Asian Test Symposium (ATS'05), 2005
In the past, test data volume reduction techniques have concentrated heavily on scan test data content. However, functional vectors continue to be utilized because they target unique defects and failure modes. Hence, functional vector compression can help alleviate the cost of functional test. Scan vector compression techniques are generally unsuitable
K.J. Balakrishnan, N.A. Touba, S. Patil
openaire   +1 more source

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