Results 21 to 30 of about 250,620 (292)

Digital Video Compression Using DCT-Based Iterated Function System (IFS)

open access: yesTikrit Journal of Pure Science, 2023
Large video files processing involves a huge volume of data. The codec, storage systems and network needs resource utilization, so it becomes important to minimize the used memory space and time to distribute these videos over the Internet using ...
Nevart A. Minas, Faten H. Al-Qadhee
doaj   +1 more source

On Partition Metric Space, Index Function, and Data Compression [PDF]

open access: yesScientific Annals of Computer Science, 2018
We discuss a metric structure on the set of partitions of a finite set induced by the Gini index and two applications of this metric: the identification of determining sets for index functions using techniques that originate in machine learning, and a ...
D.A. Simovici, R. Sizov
doaj   +1 more source

Learning and Compressing: Low-Rank Matrix Factorization for Deep Neural Network Compression

open access: yesApplied Sciences, 2023
Recently, the deep neural network (DNN) has become one of the most advanced and powerful methods used in classification tasks. However, the cost of DNN models is sometimes considerable due to the huge sets of parameters.
Gaoyuan Cai   +4 more
doaj   +1 more source

Function-on-Function Linear Regression by Signal Compression

open access: yesJournal of the American Statistical Association, 2017
We consider functional linear regression models with a functional response and multiple functional predictors, with the goal of finding the best finite dimensional approximation to the signal part of the response function. Defining the integrated squared correlation coefficient between a random variable and a random function, we propose to solve a ...
Luo, Ruiyan, Qi, Xin
openaire   +1 more source

Sequential Hashing with Minimum Padding

open access: yesCryptography, 2018
This article presents a sequential domain extension scheme with minimum padding for hashing using a compression function. The proposed domain extension scheme is free from the length extension property.
Shoichi Hirose
doaj   +1 more source

NRVC: Neural Representation for Video Compression with Implicit Multiscale Fusion Network

open access: yesEntropy, 2023
Recently, end-to-end deep models for video compression have made steady advancements. However, this resulted in a lengthy and complex pipeline containing numerous redundant parameters.
Shangdong Liu   +6 more
doaj   +1 more source

Image Compression Using Walsh Functions

open access: yesDoklady BGUIR, 2022
Currently, image transfer and storage require compression. In this article, the hybrid compression algorithm is used for color/black and white images. It includes the discrete wavelet transformation and the Walsh transformation that is used for quantization. The Walsh transform coefficients are quantized and arithmetically encoded.
A. A. Budzko   +3 more
openaire   +2 more sources

Modulation masking release reduction as a function of time-compressed speech

open access: yesRevista CEFAC, 2020
Purpose: to investigate the magnitude of the modulation masking release in sentence recognition as a function of compression level and modulation rate.
Fernando Augusto Pacífico   +5 more
doaj   +2 more sources

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

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

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