Results 1 to 10 of about 319,625 (266)

A Super Fast Algorithm for Estimating Sample Entropy [PDF]

open access: yesEntropy, 2022
Sample entropy, an approximation of the Kolmogorov entropy, was proposed to characterize complexity of a time series, which is essentially defined as −log(B/A), where B denotes the number of matched template pairs with length m and A denotes the number ...
Weifeng Liu, Ying Jiang, Yuesheng Xu
doaj   +2 more sources

A Fast Algorithm for Intra-Frame Versatile Video Coding Based on Edge Features [PDF]

open access: yesSensors, 2023
Versatile Video Coding (VVC) introduces many new coding technologies, such as quadtree with nested multi-type tree (QTMT), which greatly improves the efficiency of VVC coding. However, its computational complexity is higher, which affects the application
Shuai Zhao   +3 more
doaj   +2 more sources

A Fast Algorithm for 2D DOA Estimation Using an Omnidirectional Sensor Array [PDF]

open access: yesSensors, 2017
The traditional 2D MUSIC algorithm fixes the azimuth or the elevation, and searches for the other without considering the directions of sources. A spectrum peak diffusion effect phenomenon is observed and may be utilized to detect the approximate ...
Weike Nie   +5 more
doaj   +2 more sources

Wavelet p-analogs of the discrete Haar transform [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2021
Two $p$-analogs (for $p>2$) of the discrete version of the Haar system in vector symbolism are proposed and fast algorithms are constructed based on them.
Bespalov, Mikhail S.
doaj   +1 more source

Fast 3D-HEVC Depth Intra Coding Based on Boundary Continuity

open access: yesIEEE Access, 2021
The encoding format of the 3D extension of high efficiency video coding (3D-HEVC) consists of a multiview color texture and an associated depth map. Because of the unique characteristics of the depth map, advanced coding techniques are designed for depth
Mei-Juan Chen   +7 more
doaj   +1 more source

Fast Control for Backlight Power-Saving Algorithm Using Motion Vectors from the Decoded Video Stream

open access: yesSensors, 2022
Backlight power-saving algorithms can reduce the power consumption of the display by adjusting the frame pixels with optimal clipping points under some tradeoff criteria. However, the computation for the selected clipping points can be complex.
Shih-Lun Chen   +7 more
doaj   +1 more source

Algorithm for Solving and Updating Combinatorial Skyline [PDF]

open access: yesJisuanji gongcheng, 2017
Existing algorithms for querying combinatorial Skyline have low pruning efficiency and unsatisfactory computing speed for low-dimensional data set.Aiming at these problems,this paper proposes a fast algorithm for solving and updating combinatorial ...
DONG Leigang,LIU Guohua
doaj   +1 more source

Ising Model for Interpolation of Spatial Data on Regular Grids

open access: yesEntropy, 2021
We apply the Ising model with nearest-neighbor correlations (INNC) in the problem of interpolation of spatially correlated data on regular grids. The correlations are captured by short-range interactions between “Ising spins”.
Milan Žukovič   +1 more
doaj   +1 more source

A Multithreaded Algorithm for the Computation of Sample Entropy

open access: yesAlgorithms, 2023
Many popular entropy definitions for signals, including approximate and sample entropy, are based on the idea of embedding the time series into an m-dimensional space, aiming to detect complex, deeper and more informative relationships among samples ...
George Manis   +2 more
doaj   +1 more source

A Parallel Algorithm for Dividing Octonions

open access: yesAlgorithms, 2021
The article presents a parallel hardware-oriented algorithm designed to speed up the division of two octonions. The advantage of the proposed algorithm is that the number of real multiplications is halved as compared to the naive method for implementing ...
Aleksandr Cariow, Janusz P. Paplinski
doaj   +1 more source

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